Art [1] [Mutual citations and related applications; [2] This application claims the benefit of priority based on the March 31, Korea Patent Application No. 10-2017-0042131 and No. 03 in 2018, dated May 28, 2017 Korea Patent Application No. 10-2018-0035834, and of the Korea Patent Application everything described in the literature are included as part of the specification. [3] [Technology] [4] The present invention relates to a secondary battery, the binder composition, and relates to a secondary battery electrode and a lithium secondary battery comprising the same, and more particularly, the binder composition, a secondary battery electrode and a lithium secondary battery including the same with a suitable wet strength. BACKGROUND [5] The demand for secondary batteries as an energy source, and is rapidly increased as the development of technology and the demand for mobile devices increases, Among such secondary battery shows a high energy density and operating potential, a long cycle life, self-discharge rate is low lithium secondary the battery is commercially available and widely used. [6] Electrode of a lithium secondary battery is manufactured by forming the dried electrode material mixture layer were mixed and dispersed in a solvent to a cathode active material or an anode active material and a binder (binder) resin component to create a slurry (slurry), by applying this to the electrode current collector surface. [7] Binders, but used for the active material and the active material between the active material and the adhesive force between the electrode collector or gyeolchakryeok secured, an excessive amount of binder is required in order to improve the adhesion between the electrode collector and active material. However, the excess binder, there is a problem that lowers the capacity and conductivity of the electrode. On the other hand, the adhesive force is insufficient is caused to increase the percent defective electrode caused by the electrode peeling phenomenon in the process, such as the electrode construction, the rolling (pressing). Also, low adhesion electrode can be peeled off by an external impact, the electrode separation is brought up to a contact resistance between the current collector and the electrode material, the electrode can be a cause of output performance. [8] In particular, during the charge and discharge of the lithium secondary battery, the volume change of the negative electrode active material by the reaction of lithium occurs and the continual charging and discharging when the anode active material or desorbed from the current collector, a resistance increased according to the active material changes in mutual contact interface because, this capacity as the charge and discharge cycle proceeds, is abruptly degraded has a problem in cycle life is shortened. Further, in order to increase the discharge capacity of silicon, tin, silicon-so if using the composite materials, such as alloys of tin, silicon, tin or the like cause a greater change in volume by the reaction with lithium, more pronounced these problems It becomes. [9] Thus, by further providing good adhesion to correct the electrochemical performance penalties due to the contact surface changes between the electrode separation, desorption, or the active material from the whole of the active material at home, which performance is to provide an improved secondary battery binder and using same the development of a secondary battery electrode produced has been continuously required. Detailed Description of the Invention SUMMARY [10] The problem to be solved by the present invention, there is provided, providing a secondary battery, the binder composition may help to maintain high mechanical properties, improve the life performance of the battery after the electrolyte impregnated to better adhesion. [11] The problem to be solved another of the present invention is to provide a secondary cell electrode comprising the secondary battery, the binder composition. [12] Another problem to be solved by the present invention is to provide a lithium secondary battery comprising the secondary cell electrode. Problem solving means [13] The invention from: (a) units derived from a vinyl monomer, (B) a conjugated diene monomer or a conjugated diene unit derived from a polymer, and (C) a (meth) acrylic ester monomer in order to solve the aforementioned problems at least one unit selected from the group consisting of derived units, and (d) comprises a copolymer binder comprising units derived from a water-soluble polymer, wherein the copolymer binder having more than 0.02 MPa wet strength (wet modulus) and it provides a secondary battery, the binder composition. [14] The present invention to solve the above other problem, there is provided a lithium secondary battery negative electrode comprising a silicon-based negative active material and the secondary battery, the binder composition. [15] The present invention to solve the further problems, and provides a lithium secondary battery comprising the electrode for a lithium secondary battery. Effects of the Invention [16] Secondary battery, the binder composition according to the present invention includes a copolymer binder containing a hydrophilic functional group, and therefore the copolymer binder is of a predetermined value or more wet strength (wet modulus), exert the adhesive force wherein the copolymer binder enhanced and together, thereby improving the life performance of the battery to maintain high mechanical properties even after the electrolytic solution was impregnated. Brief Description of the Drawings [17] 1 is an illustration showing the pattern and size of the specimen used in Test Example 1. [18] Figure 2 is a graph showing a result of Example 4, and Comparative Example 3, and measuring the change in discharge capacity in the charge-discharge current density of 0.5 C condition for a lithium secondary battery prepared in 4 to 30 cycles. [19] Figure 3 is a graph showing a result of measuring the change of the discharge capacity at the charge-discharge current density of 1 C condition for the lithium secondary batteries prepared in Examples 5 to 7 to 130 cycles. [20] Figure 4 is a graph comparing Examples 8 and showing a result of measuring the change of the discharge capacity at the charge-discharge current density of 0.33 C condition for a lithium secondary battery prepared in Example 5 to 200 cycles. Best Mode for Carrying Out the Invention [21] Hereinafter, the present invention will be described to assist understanding of the present invention in more detail. [22] Herein and in the terms or words used in the claims is general and not be construed as limited to the dictionary meanings are not, the inventor can adequately define terms to describe his own invention in the best way on the basis of the principle that the interpreted based on the meanings and concepts corresponding to technical aspects of the present invention. [23] [24] A lithium secondary battery binder composition according to the invention (A) from a vinyl-based monomer unit derived from a, (B) a conjugated diene monomer or a conjugated units derived from a diene-based polymer, and (C) a (meth) acrylic acid ester monomer at least one unit selected from the group consisting of derived units, and (d) comprises a copolymer binder comprising units derived from a water-soluble polymer, wherein the copolymer binder having more than 0.02 MPa wet strength (wet modulus) will be. [25] The copolymer binder may have a more than 0.02 MPa, particularly 0.1 MPa or more, of 0.3 MPa to 0.5 MPa more particularly wet strength, when the copolymer binder having a wet strength of the above range, the swelling by the electrolyte this can be suitably suppressed, and the life characteristics of the electrode and a secondary battery including the same to maintain adequate mechanical properties can be improved. [26] The wet strength is generated in the interior of the copolymer binder through the stress-strain curve (Stress-Strain curve) by applying a load to the copolymer binder was impregnated with a conventional electrolytic solution to be used for the copolymer binder in a lithium secondary battery by identifying the tensile strain (strain) related to the tensile strength (Stress) it can be measured. [27] The wet strength to dry strength paper wherein the copolymer binder exhibit any strength in the driving environment of the copolymer binder exhibits a strength in the impregnated state in the electrolytic solution as the driving environment of an actual lithium secondary battery, the actual lithium secondary battery, in that the direct reflection of more than (dry modulus), has a another meaning than the dried high strength. [28] Wet strength value of the copolymer binder is by properly adjusting the content of the unit derived from said (D) water-soluble polymers contained in the copolymer binder to be achieved, and specifically, by adjusting the content of the hydrophilic functional groups of the copolymer binder the copolymer binder may be to have a suitable wet strength values. [29] The copolymer based on parts of the total weight 100 parts by weight, (a) a vinyl-based one part by weight of units derived from monomer to 70 parts by weight, (B) a conjugated diene monomer or a conjugated diene, 10 parts by weight of units derived from the polymer to 97 may include parts by weight, (C) a (meth) unit 1 by weight derived from an acrylate ester-based monomer unit to 30 parts by weight, and (d) units derived from a water-soluble polymer 1 part by weight to 70 parts by weight. [30] Further, specifically, the copolymer based on parts of the total weight 100 parts by weight, (a) a vinyl-based unit 20 which is derived from a monomer part by weight to 70 parts by weight, (B) a conjugated diene monomer or a conjugated units derived from a diene-based polymer 10 parts to 60 parts by weight, (C) a (meth) acrylic acid ester 1 part by weight to 20 parts by weight of units derived from monomers, and (d) may comprise 1 part by weight to 60 by weight of units derived from a water-soluble polymer portion have. [31] In addition, more specifically, the copolymer based on parts of the total weight 100 parts by weight, (a) units, 30 parts by weight to 60 parts by weight derived from a vinyl-based monomer unit, (B) a conjugated diene monomer or a conjugated derived from a diene-based polymer comprise 15 parts by weight to 30 parts by weight of components (C) (meth) acrylate-based unit 4 parts by weight to 8 which is derived from the weight of monomer unit, and (d) units derived from a water-soluble polymer, 2 parts by weight to 50 parts by weight can. [32] A unit of the copolymer is that the (a) units derived from a vinyl monomer, (B) a conjugated diene monomer or a conjugated units derived from a diene-based polymer, and (C) a (meth) derived from an acrylic acid ester monomer, respectively If included in the above-described range, the above-mentioned copolymer binder can exhibit a high adhesive strength and strength. [33] In the case comprise a unit of the copolymer is the (D) derived from a water-soluble polymer in the content range, it is possible to have the above-mentioned copolymer binder excellent wet strength values. [34] Wherein the copolymer binder is particulate, the average particle diameter (D of 100 nm to 1 ㎛, specifically 300 nm to 500 nm 50 can have). [35] The copolymer binder has a mean particle size (D 50 when have a), and can exert adequate adhesion, smaller electrolyte swelling phenomenon, can exert an appropriate elasticity to accommodate the change in thickness of the electrode and reducing the gas generation phenomena have. [36] In the present invention, the average particle diameter (D 50 ) is defined as a particle diameter at 50% based on the particle size distribution. The average particle diameter is not particularly limited and may for example be measured using a laser diffraction method (laser diffraction method) or a scanning electron microscope (SEM) photograph. The laser diffraction method is generally possible to measure the particle diameter of approximately several mm from sub-micron (submicron) region, it is possible to obtain high reproducibility of the results and has a high degradation. [37] The unit comprising said copolymer binder are as follows. [38] In the unit (A) derived from a vinyl monomer, the vinyl monomer may be at least one selected from styrene, α- methyl styrene, β- methyl styrene, butyl styrene, and di pt- the group consisting of divinylbenzene. [39] The (B) in the conjugated diene monomer or a conjugated diene-based polymer units derived from the conjugated diene monomer is 1,3-butadiene, isoprene, chloroprene, or piperylene, the conjugated diene-based polymer is 1,3 butadiene rubber, acrylonitrile-butadiene, isoprene, chloroprene, and piperidine polymer of two or more monomers selected from a tolylene group consisting of styrene-butadiene copolymer, acrylonitrile-butadiene copolymer, styrene-isoprene copolymer, acrylate acrylonitrile-butadiene-styrene rubber, ethylene-propylene-it may be at least one selected from diene-based polymer, and they are partially hydrogenated, epoxidation, or the group consisting of a brominated polymer. [40] Wherein (C) (meth) acrylic acid ester monomer is methyl acrylate, ethyl acrylate, propyl acrylate, isopropyl acrylate, n- butyl acrylate, isobutyl acrylate, n- amyl acrylate, isoamyl acrylate , n--ethylhexyl acrylate, 2-ethylhexyl acrylate, 2-hydroxyethyl acrylate, methyl methacrylate, ethyl methacrylate, propyl methacrylate, isopropyl methacrylate, n- butyl methacrylate , iso-butyl methacrylate, n- amyl methacrylate, isoamyl methacrylate, n- hexyl methacrylate, n--ethylhexyl methacrylate, 2-ethylhexyl methacrylate, hydroxyethyl methacrylate, hydroxide as hydroxypropyl methacrylate, hydroxyethyl methacrylate ethylene urea, β- carboxyethyl acrylate, Ali patik monoacrylate, adipic Alkylene diacrylate, a di-trimethylol propane tetra-acrylate, hydroxyethyl acrylate, dipentaerythritol hexaacrylate, pentaerythritol triacrylate, pentaerythritol tetraacrylate, lauryl acrylate, Sheryl acrylate, stearyl acrylate, may be greater than or equal to La lauryl methacrylate, cetyl acrylate and meth one member selected from the group consisting of stearyl methacrylate. [41] In units of the (D) derived from a water-soluble polymer, the water-soluble polymer is a (meth) from units derived from acrylic acid ester monomers, (meth) units derived from acrylamide-based monomers, unsaturated carboxylic acid monomer and a vinyl acetate monomer may be a copolymer comprising one unit or more kinds selected from the group consisting of derived units, the production method is not particularly limited, for example, can be prepared according to the suspension polymerization method, emulsion polymerization method or seed polymerization method. [42] The (meth) acrylic acid ester monomer is methyl acrylate, ethyl acrylate, propyl acrylate, isopropyl acrylate, n- butyl acrylate, isobutyl acrylate, n- amyl acrylate, isoamyl acrylate, n- ethylhexyl acrylate, 2-ethylhexyl acrylate, 2-hydroxyethyl acrylate, methyl methacrylate, ethyl methacrylate, propyl methacrylate, isopropyl methacrylate, n- butyl methacrylate, isobutyl methacrylate, n- amyl methacrylate, isoamyl methacrylate, n- hexyl methacrylate, n--ethylhexyl methacrylate, 2-ethylhexyl methacrylate, hydroxyethyl methacrylate, hydroxypropyl methacrylate, hydroxyethyl methacrylate ethylene urea, β- carboxyethyl acrylate, Ali patik monoacrylate, dipropylene Acrylate, di-trimethylol propane tetra-acrylate, hydroxyethyl acrylate, dipentaerythritol hexaacrylate, pentaerythritol triacrylate, pentaerythritol tetraacrylate, lauryl acrylate, Sheryl acrylate, stearyl acrylates, it may be greater than or equal to La lauryl methacrylate, cetyl acrylate and meth one member selected from the group consisting of stearyl methacrylate. [43] The (meth) acrylamide-based monomers include the group consisting of acrylamide, n- methylolacrylamide, n- butoxymethyl acrylamide, methacrylamide, n- methylol methacrylamide, n- butoxymethyl methacrylamide It may be at least one selected from the. [44] The unsaturated carboxylic acid monomer may be at least one selected from maleic acid, fumaric acid, methacrylic acid, acrylic acid, glutaric acid, itaconic acid, tetrahydrophthalic acid, crotonic acid, and isocrotonic acid or the group consisting of diksan. [45] The water soluble polymer may be, specifically, polyvinyl alcohol (PVA), polyacrylic acid (PAA) and polyacrylamide (PAM) may be at least one member selected from the group consisting of, more specifically, the polyacrylic acid (PAA). [46] Wherein the copolymer binder is not particularly limited, for example, may be prepared according to the suspension polymerization method, emulsion polymerization method or seed polymerization method, can be prepared specifically by the emulsion polymerization method. [47] On the other hand, the copolymer binder may comprise one or more other components of the polymerization initiator, a crosslinking agent, a buffer, a chain transfer agent, emulsifier or the like as needed. [48] A method for manufacturing a secondary battery, the binder composition according to the exemplary embodiment of the present invention, for example, will be described a case be produced by the emulsion polymerization method for the copolymer binder, the vinyl monomers, the conjugated diene monomer or a conjugated diene using the polymer, and the water-soluble polymer and the crosslinking agent can be prepared by emulsion polymerization while adding the other components of the polymerization initiator, buffers, chain transfer agent, an emulsifier, etc. of the polymerization process of this. The particle size of the copolymer binder may be adjusted according to the content of the emulsifier, in particular if the amount of the emulsifying agent increases it is possible to reduce the mean diameter of the particles, if the amount of emulsifier reduces significantly the mean diameter of the particles can do. [49] The polymerization temperature and polymerization time may be properly determined depending on the kind of the polymerization process the polymerization initiator, for example, the polymerization temperature may be 50 ℃ to 300 ℃, the polymerization time may be from 1 hour to 20 hours, it is not particularly limited. [50] The polymerization initiator to the oil-soluble initiator, including a can be used are inorganic or organic peroxides, e.g., potassium persulfate, sodium persulfate, water-soluble initiators include ammonium persulfate, or cumene hydro peroxide, benzoyl peroxide, etc. can. On the other hand, it is possible activator is used in combination to facilitate the initiation of the polymerization initiator, the activator is selected from sodium formaldehyde sulfoxylate, sodium ethylenediamine tetraacetate, ferrous sulfate, and the group consisting of dextrose 1 may include more species. [51] The crosslinking agent may be used to promote the crosslinking of the binder, for example, diethylene triamine, triethylene tetra amine, diethylaminopropyl amine, xylylene diamine, isophorone diamine, such as amines, dodecyl succinyl Nick frozen hydride (dodecyl succinic anhydride), phthalic frozen anhydride, polyamide resins such as hydride, polysulfide resins, phenolic resins, ethylene glycol dimethacrylate, diethylene glycol dimethacrylate, triethylene glycol dimethacrylate, 1,3-butanediol dimethacrylate, 1,6-hexanediol dimethacrylate, neopentyl glycol dimethacrylate, trimethyl propane trimethacrylate roll, roll trimethyl methane triacrylate, glycidyl meta acrylate. Meanwhile, the grafting agent may be used with, for example, aryl may be mentioned meta-acrylate (AMA), triaryl isocyanurate (TAIC), triarylamine (TAA), or diarylamine (DAA) and the like. [52] In the buffer, for example, NaHCO 3 , NaOH, or NH 4 may be an OH. [53] The molecular weight control agent, may be mentioned halogenated hydrocarbons Terre pins flow or chloroform, carbon tetrachloride, and the like, such as, for example, mercapto tanryu or charter nolren, dipentene, t- Terre blood yen. [54] The emulsifier is of the van der colloidal form with Waals forces of the anionic emulsifiers, nonionic emulsifiers, or in addition to the electrostatic stabilization of the anionic emulsifier polymer when used, and a mixture thereof, with a nonionic emulsifier to the anionic emulsifier particles it is possible to provide additional stabilization. [55] As the anionic emulsifiers are, for example, phosphate-based, there may be mentioned a carboxylate-based, sulfate-based, succinate-based, when sulfosuccinic carbonate-based, sulfonate-based, or a di-sulphonate-based emulsifier, in not particularly limited specifically sodium alkyl sulfate, sodium polyoxyethylene sulfate, sodium lauryl ether sulfate (sodium lauryl ether sulfate), sodium polyoxyethylene lauryl ether sulfate, sodium lauryl sulfate, sodium alkyl sulfonate, sodium alkyl ether sulfonate, sodium alkyl benzene sulfonate, sodium linear alkyl benzene sulfonate, sodium alpha-olefin sulfonates, sodium alcohol polyoxyethylene ether sulfonate, sodium dioctyl tilseol pavement when carbonate, sodium perfluoro-octane sulfonate, sodium perfluorobutane sulfonate, alkyl diphenyl oxide di sulfonate, sodium di-octyl sulfosuccinate, sodium eggs - there may be mentioned aryl phosphates, sodium alkyl ether four-state, or sodium laurate ohril sarcoidosis upon carbonate. [56] As the non-ionic emulsifiers are, for example, ester-type, ether-type, ester-may be mentioned ether-type emulsifier, is not particularly limited specifically, polyoxyethylene glycol, polyoxyethylene glycol ether, polyoxyethylene monoallyl ether, poly polyoxyethylene bisphenol -A ether, polypropylene glycol, polyoxyethylene neopentyl ether, polyoxyethylene cetyl ether, polyoxyethylene a reel ether, polyoxyethylated oleyl ether, polyoxyethylene stearyl ether, polyoxyethylene decyl there may be mentioned an ether, polyoxyethylene octyl ether. [57] [58] The secondary battery binder composition can be used as a binder in the manufacture of a lithium secondary battery electrode, in particular useful if the silicon-based negative active material used as the negative electrode active material. [59] Thus, the present invention provides a lithium secondary battery negative electrode comprising a silicon-based negative active material and the secondary battery, the binder composition. [60] To the silicon-based negative active material is, for example, Si, silicon oxide particles (SiO x , 0 [106] Artificial graphite: natural graphite: silicon-based negative electrode active material (SiO) is 84.5: 10.5: mixed in a weight ratio of 5 mixing the negative electrode active material, a thickening agent (carboxymethyl cellulose), a conductive material as a binder prepared from carbon black, Example 298 : 1: 1: 2 ratio by weight in a mixture with the TK mixer to prepare a negative electrode slurry. After coating the cathode slurry to a 120 ㎛ thickness on a copper foil of 20 ㎛, 12 sigan dried back to 100 ℃ in a vacuum oven, by rolling the negative electrode with an appropriate thickness were prepared. [107] [108] LiCoO as a cathode active material 2 was prepared to 96 g, acetylene black, 2 g, a binder of polyvinylidene fluoride (PVdF) 2 g of a solvent N- methyl-2-pyrrolidone was added to the slurry for the positive electrode money (NMP) as a , a positive electrode was prepared and then the slurry for the positive electrode aluminum (Al) preparing a cathode by coating, and dried to 350 ㎛ thickness of the thin film, subjected to a roll press (press roll). [109] [110] A negative electrode prepared in the above specific surface area 13.33 cm 2, punching such that, and the positive electrode prepared in the above specific surface area 12.60 cm 2 by punching so that to prepare a single cell (mono-cell). Attaching the tap (tap) on top of the anode and cathode, by interposing a polyolefin microporous membrane made of a separator between the cathode and the anode, the resultant was loaded into the aluminum pouch was injected into the electrolytic solution 500 mg within the pouch. The electrolyte is EC (ethylene carbonate): LiPF using 3 (volume ratio) mixed solvent: DEC (diethyl carbonate): PC (propylene carbonate) = 4: 3 6 was prepared by dissolving an electrolyte in a concentration of 1 M. [111] Then, a loss tangent subjected to pressure filling process to seal the pouch using a vacuum packaging machine, and a constant current charging was kept at room temperature for 12 hours, about 0.05 C rate, and maintains the voltage until about 1/6 of the current . At this time, since the gas generated in the cell, thereby completing the lithium secondary battery to perform degassing (degassing) and the sealing material (resealing) process. [112] [113] Example 5 [114] Using the exemplary copolymer binder of Example 1 as a binder in the manufacture of a negative electrode in Example 4, and the artificial graphite: except for using a mixed cathode active material mixed silicon-based negative electrode active material are in a weight ratio of 80:10:10: natural graphite , the example 4 to prepare a negative electrode, a positive electrode and a lithium secondary battery, through a process similar. [115] [116] Examples 6 and 7 [117] Example 4 Preparation of a negative electrode of artificial graphite standing from: natural graphite: using a mixed cathode active material mixed silicon-based negative electrode active material are in a weight ratio of 80:10:10, and also for using each of Example 2 and the copolymer binder of 3 except are respectively producing a negative electrode, a positive electrode and a lithium secondary battery, through a process similar to that of example 4. [118] [119] Example 8 [120] Example 4, except where the silicon-based negative active material and using a mixed cathode active material mixed in a weight ratio of 70: 30, and for using the copolymer binder of Example 3: Example artificial graphite in the manufacture of a negative electrode 4 and through a process similar to prepare a negative electrode, a positive electrode and a lithium secondary battery. [121] [122] Comparative Examples 3 and 4 [123] And it is, was prepared in the Example 4 and the negative electrode, a positive electrode and a lithium secondary battery, through a process similar, except as a binder in the manufacture of a negative electrode in Example 4 was used for the copolymer binder prepared in Comparative Examples 1 and 2, respectively . [124] [125] Comparative Example 5 [126] Example 4 in the manufacture of artificial graphite cathode in: a silicon-based negative electrode active material and using a mixed cathode active material mixed in a weight ratio of 70: 30, and also, the embodiment except that the binder copolymer produced in Comparative Example 1 example 4 was prepared as a negative electrode, a positive electrode and a lithium secondary battery, through a process similar. [127] [128] Experimental Example [129] Experimental Example 1: modulus (modulus) and an electrolyte swelling measurements [130] Examples 1-3, and Comparative Examples 1 and (universal testing machine) UTM for the copolymer binder prepared in the second tension applied to the load to the binder through the stress-strain curve (Stress-Strain curve) using the equipment generated within the intensity (Stress), and tensile strain (strain) dry strength through the relationship (dry modulus) and wet strength (wet modulus) were measured. [131] Specifically, in the Examples 1 to 3 and Comparative Examples 1 and coated to a predetermined thickness, a binder which is dispersed in the manufacturing solvents in the plate (dish) is Teflon coated from the second and after drying, one also to the binder film the standard cut in the specimen as shown was carried out an experiment to manufacture. [132] Dry strength was determined by using the specimen, the wet strength is EC / DEC / PC = 3: was measured using a 5-minute dry specimens at room temperature for 48 hours and then impregnated with a 5 (volume ratio) mixed solvent: 2. At this time, as compared to the specimen and the specimen length after the impregnation, and calculates the degree of increase after impregnation length to assess the degree electrolyte swelling. The results are shown in Table 1. [133] [134] Experimental Example 2: Capacity retention rate measured [135] <0.5 C capacity retention rate measurement> [136] Example 4 and Comparative Example 3, and the respective charge and discharge current density for the lithium secondary battery prepared in 4 to 0.5 C and 4.2 V for charge voltage (Li / Li + ), the discharge end voltage 3 V (Li / Li + as) were performed 30 times for a charge-discharge test. [137] All charge is subjected to constant-current / constant-voltage, constant voltage charging termination current of 0.05 C was set. After completion of the test of 30 cycles when the initial discharge capacity of 100% was shown in Fig. 2, the discharge capacity measured in each cycle. [138] [139] <1 C capacity retention rate measurement> [140] An embodiment, each charge-discharge current density for the manufacture of lithium secondary batteries 5 to 7 to 1 C and an end-of-charge voltage 4.2 V (Li / Li + ), the discharge end voltage 3 V (Li / Li + a in) a charge-discharge test was performed 130 times. [141] All charge is subjected to constant-current / constant-voltage, constant voltage charging termination current of 0.05 C was set. After completion of the test a total of 130 cycles, when the initial discharge capacity to 100%, exhibited a discharge capacity measured at each cycle in Fig. [142] [143] <0.33 C capacity retention rate measurement> [144] Example 8 and Comparative Examples, the respective charge and discharge current density for the lithium secondary battery prepared from 5 to 0.33 C, and end-of-charge voltage of 4.2 V (Li / Li + ), the discharge end voltage 3 V (Li / Li + ) a charge-discharge test was performed 200 times in one. [145] All charge is subjected to constant-current / constant-voltage, constant voltage charging termination current of 0.05 C was set. After completion of the test a total of 200 cycles, when the initial discharge capacity to 100%, exhibited a discharge capacity measured at each cycle in Fig. [146] [147] TABLE 1 Dry strength (dry modulus) [MPa] Wet strength (wet modulus) [MPa] Electrolyte swelling (%) Example 1 0.417 0.026 38 Example 2 0.132 0.105 18 Example 3 1.360 0.392 9 Comparative Example 1 0.077 Not measured 120 Comparative Example 2 0.051 0.011 45 [148] Table 1 and 2, the wet strength is low in Comparative Example 1 and the copolymer binder, a copolymer binder itself is greatly swollen by the electrolytic solution as compared to the copolymer binder of Example 2, the wet strength high. 2 ( you can see that the swelling). Further, it was confirmed the capacity retention rate is not good compared to them in the Comparative Examples 3 and 4, a negative electrode and a secondary battery has a negative electrode and a secondary battery of the fourth embodiment is manufactured by using a copolymer binder of Example 2 for manufacturing used. On the other hand, it is possible to determine the capacity retention rate of secondary battery according to the wet strength of the binder used is a copolymer through the Fig. Referring to Figure 3, increasing the wet strength of the copolymer binder, to check the capacity retention rate is superior in a negative electrode and a secondary battery produced by using this, in particular the wet strength is 0.1 or more if exhibits a capacity retention rate of the superior secondary cells and, at least 0.3 could be confirmed that it can exert the most excellent capacity retention rate of secondary battery. [149] In addition, Figure 4 shows the experimental results for comparing the difference in the effect corresponding to the type of the copolymer binder when producing a negative electrode using the negative electrode active material mixed in a weight ratio of the artificial graphite and the silicon-based negative electrode active material is shown 70:30 have. 4, the exemplary embodiment a negative electrode and a secondary battery of the 4 comprising a copolymer binder of Example 3 exhibited excellent capacity retention rate compared to Comparative Example 1, a negative electrode and a secondary battery of the Comparative Example 5 comprising a copolymer binder We can see that it has. If it is done through applying the copolymer binder of the invention has a wet strength of at least 0.02 MPa with respect to the negative electrode containing the volume change is large silicon-based negative active material according to the charging and discharging, wherein the copolymer binder exhibits improved adhesion, high mechanical maintains the physical properties, it was confirmed that this can improve the life performance of the secondary battery. Claims [Claim 1] (A) units derived from a vinyl monomer, (B) a conjugated diene monomer or a conjugated units derived from a diene-based polymer, and (C) a (meth) one selected from the group consisting of units derived from an acrylate ester monomer units or more, and (d) a binder comprising a copolymer comprising units derived from a water-soluble polymer, wherein the copolymer binder having more than 0.02 MPa wet strength (wet modulus), secondary battery, the binder composition. [Claim 2] The method of claim 1, wherein the copolymer is based on parts of the total weight 100 parts by weight, (a) a vinyl-based one part by weight of units derived from monomer to 70 parts by weight, (B) a conjugated diene monomer or a conjugated derived from a diene-based polymer 10 parts to 97 parts by weight of units, (C) a (meth) containing 1 part by weight to 30 parts by weight of units derived from an acrylate ester monomer, and (d) units derived from a water-soluble polymer 1 part by weight to 70 parts by weight secondary battery, the binder composition. [Claim 3] The method of claim 2 wherein the copolymer is based on parts of the total weight 100 parts by weight, (a) units, 30 parts by weight to 60 parts by weight derived from a vinyl monomer, (B) a conjugated diene monomer or a conjugated derived from a diene-based polymer unit 15 parts by weight to 30 parts by weight, (C) a (meth) comprises acrylic acid ester 4 parts to 8 parts by weight of units derived from monomers, and (d) units derived from a water-soluble polymer, 2 parts by weight to 50 parts by weight , secondary battery, the binder composition. [Claim 4] 2. The method of claim 1, wherein a copolymer binder is particulate, the average particle diameter (D of 100 nm to 1 ㎛ 50 having a), a secondary battery binder composition. [Claim 5] The method of claim 1, wherein the vinyl monomers are styrene, α- methyl styrene, β- methyl styrene, butyl styrene, and di pt- at least one member, a secondary battery, the binder composition is selected from the group consisting of divinylbenzene. [Claim 6] The method of claim 1, wherein the conjugated diene monomer is 1,3-butadiene, and isoprene, chloroprene, or piperylene, the conjugated diene-based polymer from the group consisting of 1,3-butadiene, isoprene, chloroprene, and piperylene polymer of at least selected two kinds of monomers, a styrene-butadiene copolymer, acrylonitrile-butadiene copolymer, styrene-isoprene copolymer, acrylate-butadiene rubber, acrylonitrile-butadiene-styrene rubber, ethylene-propylene-diene polymers, and they are partially hydrogenated, epoxidation, or one or more, a secondary battery, the binder composition is selected from the group consisting of a brominated polymer. [Claim 7] The method of claim 1, wherein the water-soluble polymer is the group consisting of a unit derived from a (meth) units derived from acrylic acid ester monomers, (meth) units derived from acrylamide-based monomers, unsaturated carboxylic acid monomer and a vinyl acetate monomer , secondary battery, the binder composition comprising a unit of at least one member selected from. [Claim 8] The method of claim 1, wherein the water-soluble polymer is polyvinyl alcohol (PVA), polyacrylic acid (PAA) and poly at least one member, a secondary battery, the binder composition is selected from the group consisting of acrylamide (PAM). [Claim 9] The method of claim 7, wherein the (meth) acrylic acid ester monomer is methyl acrylate, ethyl acrylate, propyl acrylate, isopropyl acrylate, n- butyl acrylate, isobutyl acrylate, n- amyl acrylate, iso amyl acrylate, n--ethylhexyl acrylate, 2-ethylhexyl acrylate, 2-hydroxyethyl acrylate, methyl methacrylate, ethyl methacrylate, propyl methacrylate, isopropyl methacrylate, n- butyl methacrylate, isobutyl methacrylate, n- amyl methacrylate, isoamyl methacrylate, n- hexyl methacrylate, n--ethylhexyl methacrylate, 2-ethylhexyl methacrylate, hydroxy ethyl methacrylate methacrylate, hydroxypropyl methacrylate, hydroxyethyl methacrylate ethylene urea, β- carboxyethyl acrylate, Ali patik monoacrylate les Bit, dipropylene di-acrylate, di-trimethylol propane tetra-acrylate, hydroxyethyl acrylate, dipentaerythritol hexaacrylate, pentaerythritol triacrylate, pentaerythritol tetraacrylate, lauryl acrylate, Sheryl acrylate, stearyl acrylate, lauryl methacrylate, cetyl methacrylate, and stearyl meth at least one member, a secondary battery, the binder composition is selected from the group consisting of acrylate. [Claim 10] The method of claim 7, wherein the (meth) acrylamide-based monomers include acrylamide, n- methylolacrylamide, n- butoxymethyl acrylamide, methacrylamide, n- methylol methacrylamide, n- butoxymethyl at least one member, a secondary battery, the binder composition is selected from the group consisting of methacrylamide. [Claim 11] The method of claim 7, wherein the unsaturated carboxylic acid monomer is maleic acid, fumaric acid, methacrylic acid, acrylic acid, glutaric acid, itaconic acid, tetrahydrophthalic acid, crotonic acid, isocrotonic acid and or one selected from the group consisting of diksan species or more, a secondary battery, the binder composition. [Claim 12] A lithium secondary battery negative electrode comprising the secondary battery, the binder composition of the silicon-based negative active material and the first section. [Claim 13] The method of claim 12, wherein the lithium secondary battery, the negative electrode for a lithium secondary battery negative electrode comprising further comprising and the above silicon-based negative electrode active material, 1% by weight to 30% by weight of the negative electrode active material is a carbon-based negative electrode active material. [Claim 14] The lithium secondary battery comprising a lithium secondary battery negative electrode according to claim 12.