Art [1]Mutual citations and related applications [2]This application claims the benefit of priority based on the 30-day Korea Patent Application No. 10-2017-0163677 November 2017, and all information disclosed in the literature of the Korea patent application are included as part of the specification. [3] [4]Art [5]The present invention relates to a lithium secondary battery comprising the same gel polymer electrolyte and produced a gel polymer electrolyte composition, from which, more particularly, to a high temperature stability is improved for the gel polymer electrolyte composition, the gel polymer electrolyte to be produced therefrom, and it It relates to a lithium secondary battery comprising. [6] BACKGROUND [7] There is demand for secondary batteries as an energy source has been increasing rapidly, is widely used among these secondary batteries is a lithium secondary battery having high energy density and voltage are commercially available, as the technical development and demand for mobile devices increases. [8] The lithium secondary battery is applied to the current collector for the positive electrode active material and negative electrode active material to a suitable thickness, or the active material forming the self into a film of an appropriate length, and then, to wind or laminated with an insulator separator and manufacturing an electrode assembly, a can or after this, insert the electrode assembly similar to the container, is prepared by the process of injecting electrolyte. [9] As the positive electrode active material and the lithium metal oxide is used, as an anode active material is used a lithium metal, a lithium alloy, a crystalline or amorphous carbon or carbon composites. In addition, the electrolyte has been prepared by dissolving the ion conductive salt in the electrolyte, in particular a non-aqueous organic solvent in the liquid state liquid electrolyte mainly used. [10] As the positive electrode active material and the lithium metal oxide is used, as an anode active material is used a lithium metal, a lithium alloy, a crystalline or amorphous carbon or carbon composites. In addition, the electrolyte has been prepared by dissolving the ion conductive salt in the electrolyte, in particular a non-aqueous organic solvent in the liquid state liquid electrolyte mainly used. [11] As However, recent interest in energy storage technology increases gradually, as well as possible that can be charged and discharged in a size and weight and high capacity, there is a need for the development of secondary batteries having a high-temperature high-voltage safety. [12] On the other hand, when a secondary battery driven at a high temperature, high voltage, a lithium secondary battery, can occur frequently, the heat generating phenomenon of the increase in the internal temperature, all-liquid electrolyte in an organic solvent and the salt is generally a high temperature stability decreases, once When the ignition is started even block the current supply from the outside there is a problem that the combustion is taking place spontaneously. [13] This there is a need for self-cell development with a high temperature stability is excellent, unlike a gel polymer electrolyte and a liquid electrolyte to bridge them. [14] (Patent Document 0001) Republic of Korea Patent Publication No. 10-2015-0139827 No. [15] Detailed Description of the Invention SUMMARY [16] The present invention for solving the above problems, for which do not degrade the performance of the battery even possible to improve the high-temperature safety of the battery gel polymer electrolyte composition prepared therefrom gel polymer electrolyte and a lithium secondary battery comprising the same It intended to provide. [17] Problem solving means [18] In one aspect, the present invention is the first oligomer represented by the following general formula (1); [19] To those derived from styrene monomer, a second oligomer comprising a first repeating unit represented by the formula 2a; [20] A polymerization initiator; A lithium salt; And it provides for a gel polymer electrolyte composition including a non-aqueous solvent. [21] Formula 1 [22] [23] In the formula 1, [24] Wherein A and A 'is a unit comprising a (meth) acrylate, each independently, [25] A unit in which the B and B 'comprises an amide, each independently, [26] The C and C 'are each independently a unit that includes an oxyalkylene group, [27] Wherein D is a unit comprising a siloxane, [28] k is an integer of 1 to 100. [29] [Formula 2a] [30] [31] In the general formula 2a, wherein R 10 will be selected from the group consisting of hydrogen and an alkyl group a substituted or unsubstituted C 1 -C 5 ring, wherein a is an integer of 1 to 50. [32] [33] On the other hand, the second oligomer is to may be one further comprising at least one selected from the group consisting of the third repeating unit represented by formula (2c) to the second repeat unit and represented by the following general formula 2b. [34] [Chemical Formula 2b] [35] [36] In the formula 2b wherein R 11 will be selected from the group consisting of hydrogen and an alkyl group a substituted or unsubstituted C 1 -C 5 ring, wherein b is an integer from 1 to 50. [37] [Formula 2c] [38] [39] The R in the formula 2c 12 , R 13 , R 14 will be each independently selected from hydrogen and substituted or unsubstituted selected from the group consisting of alkyl groups of the ring having 1-5 carbon atoms, wherein c is an integer from 1 to 50. [40] [41] In one embodiment, the second oligomer may be one containing at least one selected from the group consisting of units represented by formula 2-1 and 2-2. [42] [Chemical Formula 2-1] [43] [44] In the above formula 2-1 d, e are each independently an integer from 1 to 50. [45] [46] [Formula 2-2] [47] [48] In Formula 2-2, f, g, h are each independently an integer from 1 to 50. [49] [50] In addition, the first oligomer of the invention may be one containing at least one compound selected from the group consisting of compounds represented by the 1-1 to 1-5. [51] [Chemical Formula 1-1] [52] [53] [Chemical Formula 1-2] [54] [55] [Chemical Formula 1-3] [56] [57] [Chemical Formula 1-4] [58] [59] [Chemical Formula 1-5] [60] [61] In Formula 1-1 to 1-5, n, o, p are each independently an integer from 1 to 30, q is an integer of 1 to 100. [62] [63] In another aspect, the present invention provides a rechargeable lithium battery including the gel polymer electrolyte, and it is made for using a gel polymer electrolyte composition as described above. [64] Effects of the Invention [65] Gel polymer electrolyte composition according to the invention can be use to form the polymer network by mixing electrochemical safety is more excellent two kinds of oligomers, improving the high temperature stability of the lithium secondary battery. [66] Best Mode for Carrying Out the Invention [67] Hereinafter, the present invention will be described to assist understanding of the present invention in more detail. [68] 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. [69] Used herein it is to be used to describe only the exemplary embodiments, and are not intended to limit the present invention. Expression in the singular number include a plural forms unless the context clearly indicates otherwise. [70] In this specification, "comprise", "comprising is" or "gajida" and terms are exemplary of characteristics, numbers, steps, components or geotyiji to be a combination thereof specify the presence, of one or more other characteristics or more or of numbers, steps, components, or the presence or possibility of combinations thereof and are not intended to preclude. [71] On the other hand, a "*", unless otherwise specified in the present invention refers to a connected part between the same or different atom or an end portion of the formula. [72] [73] [74] The composition for gel polymer electrolyte according to the present invention is the first oligomer; The second oligomer; A polymerization initiator; A lithium salt; And a non-aqueous solvent. [75] [76] Oligomer [77] First will be described with respect to the oligomer. As described above, the oligomers of the present invention is composed of a first oligomer and a second oligomer. [78] [79] The first and second oligomers may form a polymer network is coupled 3d via a polymerization reaction, wherein the first oligomer is the second comprising a (meth) acrylate group, an amide group, an oxyalkylene group, and siloxane, and the oligomer comprises a first repeat unit derived from a styrene monomer. [80] [81] Lithium secondary batteries according to the type of the electrolyte used can be classified into a lithium polymer battery using a lithium ion battery, a polymer electrolyte using a liquid electrolyte. [82] However, the liquid electrolyte, the electrode material is not degraded as is most likely to be a volatile organic solvent, it may cause a fire reaction by temperature increase of the ambient temperature and the battery itself has a problem on high-temperature stability. Specifically, when due to overheating, exceeds this liquid electrolyte Flash point (flash point), it may result in thermal runaway. Thermal runaway phenomenon is, it is known that at high currents, excessive charging, a high-temperature environment occurring at high temperature through chemical reaction with oxygen that is released from the positive electrode active material and a liquid electrolyte serves as a fuel, such as oil. [83] In order to solve the above problems, when the battery is overheated to more than any temperature, protection circuit for blocking current, and to take advantage of the safety vent, but, in the case of a device as described above, relatively high yeoseo a large problem burden on the price there is. [84] [85] In this invention, by using a gel polymer electrolyte comprising a polymer network formed by combining the three-dimensional first and second oligomer it was to address these problems. The first, in the case of a gel polymer electrolyte formed by combining the two oligomers, electrochemically volatility is low even at high temperatures compared to liquid electrolyte is highly stable. In addition, co-The use of oligomers with different types of first and second oligomer with (co-oligomer) together, while maintaining the electrochemical stability by the first oligomer having a stable structure electrochemically, by the second oligomer there strength (modulus) of the gel polymer electrolyte structure can be improved. [86] Further, when the molecular weight of the oligomers mixed with different two kinds, it is a polymer network can be formed rapidly, and can be also improved conversion rate of the oligomers in the polymer. [87] On the other hand, it improves the safety of the battery by inhibiting an electrochemical reaction that occurs in the polymer gel at all the quality and cathode interface, as well as during high temperature storage can be also improved high-temperature stability by reducing the amount of gas generated by the electrochemical reaction. [88] [89] On the other hand, the first oligomer and a second oligomer is 97.5: 2.5 to 2.5: 97.5, preferably 70:30 to 30:70, and more preferably may be contained in a mass ratio of 40: 60 to 60: 40. The first, the second oligomer that can be the electrochemical stability of the gel polymer is formed by the oligomer, the strength (Modulus), the high temperature storage and improving the durability if it is included in the mass ratio. [90] [91] At this time, the first oligomer is represented by the following general formula (1). [92] Formula 1 [93] [94] In the formula 1, [95] Wherein A and A 'are each independently a (meth) a unit comprising an acrylate, wherein B and B' are each independently a unit comprising an amide, wherein the C and C 'comprises an oxyalkylene group, each independently a unit to, the D is a unit comprising a siloxane, k is an integer of 1 to 100. [96] On the other hand, the k may preferably be an integer of 1 to 50, more preferably, an integer of 1 to 30. When the k is within this range, the oligomer of the formula (1) has an appropriate weight-average molecular weight (Mw). [97] At this time, a weight-average molecular weight in this specification, unless specified in terms of contrast that can sense the level, special for a standard polystyrene measured by GPC (Gel Permeation Chromatograph), the molecular weight may refer to weight average molecular weight. In this case, the weight average molecular weight is gel permeation chromatography can be measured using the (Gel Permeation Chromatography GPC). For example, after preparing the sample specimen of a certain concentration, to stabilize the GPC measurement system 4 alliance device. If the device has been stabilized eoteonaen the chromatogram by a device injecting the standard sample and the sample to the sample, and then calculating the weight average molecular weight according to the analysis method (system: Alliance 4, column: Ultrahydrogel linear x 2, eluent: 0.1M NaNO 3 ( pH 7.0 phosphate buffer, flow rate: 0.1 mL / min, temp: 40 ℃, injection: 100μL) [98] The weight average molecular weight (Mw) of the first oligomer of the formula (1) may be controlled by the number of repeat units, from about 1,000 to 20,000, and may be specifically 1,000 to 15,000, more particularly 1,000 to 10,000. When the weight average molecular weight of said first oligomer is within the above range, the low volatility of the gel polymer electrolyte, it is possible to effectively improve the mechanical strength of the battery including the same, the gel is such as workability (formability) and high-temperature stability of a battery improved it is possible to manufacture the polymer. [99] [100] On the other hand, the units A and A 'is a unit of the oligomer is coupled to the three-dimensional structure comprising a (meth) acrylate to form a polymer network. The units A and A 'may be derived from monomers comprising at least one monofunctional or multifunctional (meth) acrylate or (meth) acrylic acid structure in the molecule. [101] For example, the units A and A 'may include at least one or more of the unit represented by each of to independently Formula A-1 to A-5. [102] Formula A-1] [103] [104] Formula A-2] [105] [106] Formula A-3] [107] [108] Formula A-4] [109] [110] Formula A-5] [111] [112] Wherein R in formula A-1) to (A-5 1 may be is selected from the group consisting of substituted or unsubstituted alkyl group of hydrogen and having 1 to 6 carbon atoms independently. [113] [114] In addition, the function of method as a unit for the unit B and B 'comprises an amide, each independently, implement a gel polymer electrolyte using the first oligomer, to adjust the ion transport characteristics and adjust the mechanical properties and adhesion It intended to give. [115] For example, the units B and B 'may comprise a unit represented by formula B-1 for each independently. [116] Formula B-1] [117] [118] In Formula B-1, [119] R 2 is a substituted C 1 -C 10 linear or non-linear alkyl group, having 3 to 10 carbon atoms substituted or unsubstituted cycloalkyl group, a C 6 -C 20 substituted or unsubstituted bicyclo alkylene group, having 6 to 20 carbon ring or beach to the aryl group, the ring general formula R 2 -1 to units of formula and R 2 is at least one selected from the group consisting of units represented by -2. [120] [Formula R 2 -1] [121] [122] Formula R 2 -2] [123] [124] In another example, in formula B-1, [125] Wherein R 2 has the formula R 2 -3 to R 2 can include at least one or more of the unit represented by -8. [126] Formula R 2 -3] [127] [128] Formula R 2 -4] [129] [130] Formula R 2 -5] [131] [132] Formula R 2 -6] [133] [134] Formula R 2 -7] [135] [136] Formula R 2 -8] [137] [138] In addition, the unit C and C 'is to increase the affinity of the high-polar surface in a dissociated salt and a battery, within the polymer network as a unit that includes an oxyalkylene group each independently. More specifically, it is used to regulate the impregnation ability, affinity to the electrode and the ion conductivity of the solvent. [139] The units C and C 'may comprise a unit represented by the following formula C-1 independently. [140] Formula C-1] [141] [142] Formula-1 in C, R 3 is a C 1 -C 10 substituted or unsubstituted linear or non-linear alkylene group, l is an integer from 1 to 30. [143] Specifically, in the general formula C-1, wherein R 3 is -CH 2 CH 2 - or -CHCH 3 CH 2 - may be. [144] [145] The D unit is a unit comprising a siloxane, and is used to control the affinity of the mechanical properties and the separation membrane. [146] Specifically, at the same time as form a structure to secure flexibility of the non-rigid structure area by the amide bond in the polymer network, it is possible to increase the affinity with the polyolefin-based separator fabric using a low polarity. In particular, when the affinity with the polyolefin-based separator fabric are improved, and the resistance is decreased ion conductivity may be achieved an effect that is further improved at the same time. [147] Further, the Si element contained in said unit D because it is inactive (inert) element is also no reactivity with lithium metal and oxygen from the air, do not cause a side reaction such as a lithium metal precipitation or oxygen radical release by the anode structure collapse. Further, to improve the wetting properties within the cell (wetiing) Sikkim suppress precipitation of lithium, as well as to suppress the chemical reaction of lithium dendrite (dendrite) it is possible to control the exothermic reaction. [148] For example, the D unit may include a unit represented by formula D-1. [149] Formula D-1] [150] [151] In formula D-1, R 8 and R 9 is a linear or non-linear alkylene group having 1 to 5 carbon atoms, R 4, R 5, R 6 and R 7 are each independently hydrogen, an alkyl group or carbon number of 1 to 5 carbon atoms is an aryl group of 6 to 12, m is an integer from 1 to 500. On the other hand, the m may be an integer of more preferably 10 to 500. [152] Specifically, to the unit D of the formula D-1 may be a unit represented by the formula D-2. [153] Formula D-2] [154] [155] In the general formula D-2, R 4, R 5, R 6 and R 7 are each independently a hydrogen, an aryl group or having 6 to 12 carbon atoms having from 1 to 5 carbon atoms, in formula D-2 m is from 1 to 500 integer, and more preferably may be an integer from 10 to 500. [156] [157] More specifically, the unit D of the formula D-2 is to may be, one of the units represented by formula D-3 and D-4. [158] [159] Formula D-3] [160] [161] Formula D-4] [162] [163] In the general formula D-3 and D-4 The general formula m is an integer from 1 to 500, respectively. More preferably, there can be an integer from 10 to 500. When the m satisfies the above range, there is Si and benzene in the gel polymer electrolyte is prepared using the oligomer containing the said unit is replaced and can improve further the high-temperature safety, controlling a chemical reaction with the lithium metal electrode it may be possible to improve the reliability of the battery. [164] According to one embodiment of the present invention, the first oligomer, to may be one comprising at least one compound selected from the group consisting of compounds represented by the formula 1-1 to 1-5. [165] [Chemical Formula 1-1] [166] [167] [Chemical Formula 1-2] [168] [169] [Chemical Formula 1-3] [170] [171] [Chemical Formula 1-4] [172] [173] [Chemical Formula 1-5] [174] [175] In Formula 1-1 to 1-5, n, o, p are each independently an integer from 1 to 30, q is an integer of 1 to 100. [176] On the other hand, the q may preferably be an integer of 1 to 50, more preferably, an integer of 1 to 30. [177] On the other hand, the first oligomer may be included with 0.5 to 20 parts by weight, preferably from 1.0 to 20 parts by weight, content of more preferably 1.5 to 20 parts by weight based on 100 parts by weight of the gel polymer electrolyte composition for. When the content of the first oligomer, 0.5 parts by weight, less difficult to network response with a first oligomer or between the second oligomer to form a gel polymer electrolyte is formed, when the content of the first oligomer is more than 20 parts by weight of gel the viscosity of the polymer electrolyte batteries in impregnating property for more than a certain level, it can be wettability (wetting) decreases and the electrochemical stability inhibition. [178] The second oligomer may be one comprising a first repeating unit represented by formula (2a) to those derived from styrene monomer. In the case of the first repeating units derived from a styrene monomer, comprises a benzene having a resonance structure, in the case of benzene upon by resonance radical is formed, to stabilize the radical compound, a fixed radical scavenger (radical scavenger) serves to the can may be suppressed ignition phenomena induced by oxygen radicals can be enhanced by performing the high-temperature safety. [179] [Formula 2a] [180] [181] In the general formula 2a, wherein R 10 will be selected from the group consisting of hydrogen and an alkyl group a substituted or unsubstituted C 1 -C 5 ring, wherein a is an integer of 1 to 50. Preferably, a is an integer between 1 and 30 may be more preferably an integer of 1 to 40. [182] On the other hand, the first repeating unit is not easily volatilized as the, high boiling point is relatively derived from styrene monomer. Therefore, when the first repeat unit to form said second oligomer with the first oligomer to the gel polymer electrolyte made of the polymer network together comprising the, the high temperature stability can be improved than in the case of using only one type of oligomer. [183] [184] In addition, the second oligomer may be one further comprising at least one repeating unit selected from the group consisting of the second repeating unit and the third repeating unit. [185] As the repeating unit to the second repeating unit includes a cyano group (-CN), a cyano group by lithium cations with coordination groups dihydro pilrik (hydrophilic) with a multiple bond (coordination), the oligomer and the gel polymer electrolyte comprising the same it is possible to adjust the polarity (polarity), improves the ionic conductivity and the dielectric constant increases by induction can improve the performance of the battery. [186] The second repeating unit may be represented by the following general formula 2b. [187] [Chemical Formula 2b] [188] [189] In the formula 2b wherein R 11 will be selected from the group consisting of hydrogen and an alkyl group a substituted or unsubstituted C 1 -C 5 ring, wherein b is an integer from 1 to 50. Preferably, b is an integer of 1 to 30 may be more preferably from 1 to 40 integer, and. [190] [191] The conductivity can be secured to the ion transfer path as a repeating unit, which, in the gel polymer electrolyte comprising the same through interaction with lithium ions includes a carbon-carbon double bond (-C = C-) - the third repeating units is carbon It can be improved. Further, the second oligomer containing 3 repeating units can enhance the physical strength of the gel polymer electrolyte formed of a more rigid and finally connected to the first oligomer. [192] The third repeating unit may be represented by the following general formula 2c. [193] [Formula 2c] [194] [195] The R in the formula 2c 12 , R 13 , R 14 will be each independently selected from hydrogen and substituted or unsubstituted selected from the group consisting of alkyl groups of the ring having 1-5 carbon atoms, wherein c is an integer from 1 to 50. Preferably, c is an integer between 1 and 30 may be more preferably an integer of 1 to 40. [196] [197] For example, the second oligomer may be one containing at least one selected from the group consisting of units represented by formula 2-1 and 2-2. [198] [Chemical Formula 2-1] [199] [200] In the above formula 2-1 d, e are each independently an integer from 1 to 50. Preferably, it may be an integer of 1 to 30 and more preferably an integer of 1 to 40. [201] [Formula 2-2] [202] [203] In the above formula 2-2 f, g, h are each independently an integer from 1 to 50. Preferably, it may be an integer of 1 to 30 and more preferably an integer of 1 to 40. [204] [205] The weight average molecular weight of the second oligomer (Mw) is the first repeating units and second repeating units and the can be adjusted by the number in each of repeating units constituting the coupling ratio and the second oligomer with 3 repeating units, and , from about 300 to 10,800, 500 to 10,800 in detail, may be from 1,000 to 10,800 in more detail. If within the weight average molecular weight of the second oligomer, the above-described range, the second oligomer gel polymer electrolyte has a viscosity and ionic conductivity is maintained at a certain level, electrochemical stability and high temperature stability of the gel polymer electrolyte, the improvement comprising the same, including the It can be. [206] [207] On the other hand, the second oligomer can be included with 0.5 to 20 parts by weight, preferably from 1.0 to 20 parts by weight, content of more preferably 1.5 to 20 parts by weight based on 100 parts by weight of the gel polymer electrolyte composition for. When the amount of the second oligomer 0.5 part by weight less difficult to network response of a second oligomer or between the first oligomer to form the gel polymer electrolyte is formed, if the amount of the second oligomer is more than 20 parts by weight of gel the viscosity of the polymer electrolyte batteries in impregnating property for more than a certain level, it can be wettability (wetting) decreases and the electrochemical stability inhibition. [208] [209] A polymerization initiator [210] Next is a description of the polymerization initiator. [211] The polymerization initiator may be combined to form the polymer network in a three-dimensional structure by polymerizing the oligomer of the present invention, it can be used without a conventional polymerization initiator known to one skilled in the art limitations. The polymerization initiators according to the polymerization method, it is possible to use a photopolymerization initiator or thermal polymerization initiator. [212] Specifically, the photopolymerization initiator is a typical example 2-hydroxy-2-methyl propiophenone (HMPP), 1- hydroxy-cyclohexyl-phenyl-ketone, benzophenone, 2-hydroxy-1- [4- ( 2-hydroxyethoxy) phenyl] -2-methyl-1-propanone, oxy-phenyl-acetic Acid 2- [2-oxo-2-phenyl-acetoxy-ethoxy] -ethyl ester and oxy-phenyl-acetic tick-2- [2-hydroxy-ethoxy] -ethyl ester, alpha-dimethoxy-alpha-phenyl acetophenone, 2-benzyl-2- (dimethylamino) -1- [4- (4-morpholinyl) phenyl ] -1-butanone, 2-methyl-1- [4- (methylthio) phenyl] -2- (4-morpholinyl) -1-propanone, diphenyl (2,4,6-trimethylbenzoyl) - phosphine oxide, bis (2,4,6-trimethylbenzoyl) -phenyl phosphine oxide, bis (eta 5-2,4- cyclopentadiene-1-yl), bis [2,6-difluoro- composed of 3- (1H- pyrrol-1-yl) phenyl] titanium, 4-isobutyl-phenyl-4'-iodo-phenyl iodonium, hexafluorophosphate, and methyl benzoylformate It may include at least one or more selected from the group. [213] Further, the thermal polymerization initiator is the typical example of benzoyl peroxide (benzoyl peroxide), acetyl peroxide (acetyl peroxide), dilauryl peroxide (dilauryl peroxide), di -tert- butyl peroxide (di-tert-butyl peroxide) , t- butyl peroxy-2-ethyl-hexanoate (t-butyl peroxy-2-ethyl-hexanoate), cumyl hydroperoxide (cumyl hydroperoxide) and hydrogen peroxide (hydrogen peroxide), 2,2'- azobis (2-cyano-butane), 2,2'-azobis (methylbutyronitrile), 2,2'-azobis (isobutyronitrile) (AIBN; 2,2'-azobis (iso-butyronitrile may include at least one or more selected from the group consisting of 2,2'-Azobisdimethyl-valeronitrile); -)) and 2,2'-azobis dimethyl valeronitrile (AMVN. [214] The polymerization initiator is decomposed by heat in the 30 to 100 in the battery or ambient temperature (5 to 30) to be decomposed by light (light), such as a UV form a cross-linked by the formation, and the free radical radical polymerization oligomers from It can be to be polymerized. [215] On the other hand, the polymerization initiator may be used in an amount of a first oligomer and a second oligomer with respect to 100 parts by weight, 0.01 to 5 parts by weight, preferably 0.05 to 5 parts by weight, more preferably 0.1 to 5 parts by weight. When the content of the polymerization initiator used within the above range, it is possible to minimize the amount of the unreacted polymerization initiator that can adversely affect the battery performance. In the case that contains the polymerization initiator within the above range, gel painter can be appropriately made. [216] [217] Lithium salt [218] Next explained is the lithium salt. [219] Lithium salts are used as an electrolyte salt in a lithium secondary battery, and is used as a medium for transmitting the ions. Typically, the lithium salt is LiPF 6 , LiBF 4 , LiSbF 6 , LiAsF 6 , LiClO 4 , LiN (C 2 F 5 SO 2 ) 2 , LiN (CF 3 SO 2 ) 2 , CF 3 SO 3 Li, LiC (CF 3 SO 2 ) 3 , LiC 4 BO 8 , LiTFSI, LiFSI, and LiClO 4It may include at least one or more compounds selected from the group, and preferably consisting of LiPF 6 , but can include, but is not limited to such. [220] On the other hand, the lithium salt may be included as 0.5 to 5M, preferably from 0.5 to 4M. The lithium salt content is, if less than the above range, the concentration of lithium ion electrolyte may not be charged and discharged, the low battery done properly, if it exceeds the above range, the viscosity of the gel polymer electrolyte cells in wettability (wetting) is to be reduced it can be worse battery performance. [221] [222] The non-aqueous solvent [223] Next is a description of a non-aqueous solvent. [224] In the present invention, the non-aqueous solvent as an electrolyte solvent commonly used in a lithium secondary battery, for example, ethers, esters (Acetate acids, Propionate acids), amides, linear carbonate or a cyclic carbonate, a nitrile (acetonitrile, SN and so on) each may be used alone or in combination of two or more kinds or the like. [225] Among these it may typically be a carbonate-based electrolyte solution solvent comprising a cyclic carbonate, linear carbonate or a mixture of carbonate compound. [226] Specific examples of the cyclic carbonate compound is ethylene carbonate (EC), propylene carbonate (PC), 1,2-butylene carbonate, 2,3-butylene carbonate, 1,2-pentylene carbonate, 2,3-pentylene carbonate, a vinylene carbonate, and at least a single compound or a mixture of two or more selected from the group consisting of halide. Further, specific examples of the linear carbonate compound include dimethyl carbonate (DMC), diethyl carbonate (DEC), dipropyl carbonate (DPC), ethylmethyl carbonate (EMC), methyl propyl carbonate (MPC) and ethylpropyl carbonate (EPC) etc. these compounds or at least two or more groups in the mixture may be used as a representative, but not limited to consisting of. [227] In particular, the carbonate-based electrolyte solution solvent of the cyclic carbonate is propylene carbonate and ethylene carbonate are high dielectric constant is used as the organic solvent having a high viscosity may be preferably used because good dissociation of lithium salt in the electrolyte solution, such a cyclic carbonate and ethyl methyl carbonate, diethyl carbonate in or low viscosity such as dimethyl carbonate, also, the use of a mixture of low dielectric constant linear carbonate in a suitable ratio can be used and more preferably it is possible to make an electrolyte solution with high electric conductivity. [228] Further, in the above electrolyte solvent is an ester-lactone to methyl acetate, ethyl acetate, propyl acetate, methyl propionate, ethyl propionate, γ- butynyl, γ- lactone ballet, γ- lactone as caprolactone, α- ballet However, and to use a single compound or at least a mixture of two selected from the group consisting of ε- caprolactone, and the like. [229] [230] To a composition for the gel polymer electrolyte according to an embodiment of the present invention to impart the addition to the described components, increase in the polymer network formation reaction of the oligomer efficiency and resistance reduction, and other additives that can be implemented in these properties it is known in the art and the like, inorganic particles may optionally further contain a. [231] The other additives include, for example, VC (Vinylene Carbonate), VEC (vinyl ethylene carbonate), PS (Propane sultone), SN (succinonitrile), AdN (Adiponitrile), ESa (ethylene sulfate), PRS (Propene Sultone) , FEC (fluoroethylene carbonate), LiPO 2 F 2 , LiODFB (Lithium difluorooxalatoborate), LiBOB (Lithium bis- (oxalato) borate), TMSPa (3-trimethoxysilanyl-propyl-N-aniline), TMSPi (Tris (trimethylsilyl) Phosphite) , LiBF 4 is applicable to all of the additives and the like. [232] Further, as the inorganic particles, the dielectric constant of 5 or more BaTiO 3 , BaTiO 3 , Pb (Zr, Ti) O 3 (PZT), Pb 1-a La a Zr 1-b Ti b O 3 (PLZT, wherein 0 [236] Hereinafter, a gel polymer electrolyte according to the present invention. [237] According to one embodiment of the present invention, a gel polymer electrolyte is prepared using the gel polymer electrolyte composition. [238] Conventional gel polymer electrolyte has a problem that a low ion conductivity, a relatively weak stability and mechanical properties when compared to the solid polymer electrolyte as compared with the liquid electrolyte. [239] However, the gel polymer electrolyte according to the present invention, (meth) "units C and C comprising, each independently selected from an oxyalkylene group, the unit A, each independently selected from units B and B comprises an amide group-containing acrylate, the siloxane second oligomer comprises a first oligomer and a first repeating unit derived from the styrene-based monomer comprising units D containing group forms a polymer network, and can improve ion conductivity and mechanical properties, and volatility is low, High temperature stability can also be improved. [240] On the other hand, the gel polymer electrolyte according to the present invention is formed by polymerizing the composition for gel polymer electrolyte according to the conventional method known in the art. In general, the gel polymer electrolyte may be prepared by the in-situ polymerization or polymerizing the coating. [241] More specifically, in-situ polymerization (a) an anode, a cathode, and the present invention in step and (b) the cell case of inserting the electrode assembly consisting of the anode and disposed between the cathode (介 在) separator in a battery case after injecting the composition for gel polymer electrolyte according to a method that after the step of polymerization to prepare a polymer gel electrolyte. [242] The lithium secondary battery within the in-situ polymerization is possible through the E-BEAM, gamma ray, room temperature / high-temperature aging step, according to one embodiment of the present invention can be carried out through thermal polymerization or photopolymerization. At this time, the polymerization time can be about 2 minutes to 12 hours, and may take, heat polymerization temperature may be 30 to 100, a photo polymerization temperature is room temperature (5 to 30). [243] More specifically, in the lithium secondary battery, in-situ polymerization reaction is to form a gel polymer electrolyte through the through gelation and then injected into the gel polymer electrolyte composition into the battery cell, and the polymerization reaction. [244] Alternatively, using light, such as the gel polymer electrolyte composition was coated on the electrode and the separator on one surface, and the heat or UV curing (gelation) was then, a gel polymer electrolyte formed of the electrode and / or the take-up or membrane laminated to manufacture the electrode assembly, and may insert it into the battery case and prepared by a conventional liquid electrolyte solution feat. [245] [246] [247] Next, a description will be given of a lithium secondary battery according to the present invention. In the secondary battery according to another embodiment of the invention includes a separator and a gel polymer electrolyte interposed between the negative electrode, positive electrode, the positive electrode and the negative electrode. The gel polymer electrolyte is the same as the aforementioned contents will be omitted specific explanation. [248] [249] anode [250] The positive electrode can be prepared by coating a positive electrode material mixture slurry containing the positive electrode active material, a binder, a conductive material and a solvent or the like onto the positive electrode collector. [251] The cathode current collector is so long as it has suitable conductivity without causing chemical changes in the fabricated battery is not particularly limited, for example, stainless steel, aluminum, nickel, titanium, sintered carbon, or carbon on the surface of aluminum or stainless steel , nickel, titanium, can be used as such as to a surface treatment or the like. [252] The positive electrode active material is a reversible intercalation and de capable of intercalation compounds of lithium, specifically, it may comprise a lithium composite metal oxide containing at least one metal and lithium such as cobalt, manganese, nickel or aluminum have. More specifically, the lithium composite metal oxide is the lithium-manganese-based oxide (for example, LiMnO 2 , LiMn 2 O 4 and the like), lithium-cobalt oxide (e.g., LiCoO 2 and the like), lithium-nickel-based oxide (for example, LiNiO 2 and the like), lithium-nickel-manganese-based oxide (for example, LiNi 1-Y1 Mn Y1 O 2 (here, 0