Title of the invention: negative electrode active material, method for manufacturing negative electrode active material, negative electrode and lithium secondary battery including the same technical field [One] The present invention relates to a negative electrode active material, a method for manufacturing a negative electrode active material, a negative electrode comprising the same, and a lithium secondary battery, and more particularly, to a negative electrode active material exhibiting high initial efficiency and excellent fast charging performance, a method of manufacturing the negative electrode active material, It relates to a negative electrode comprising a, and a lithium secondary battery. [2] This application claims priority based on Korean Application No. 10-2019-0121071 filed on September 30, 2019, and all contents disclosed in the specification of the application are incorporated herein by reference. background [3] As technology development and demand for mobile devices increase, the demand for secondary batteries as an energy source is rapidly increasing. Among these secondary batteries, a lithium secondary battery having a high energy density and voltage, a long cycle life, and a low discharge rate has been commercialized and widely used. [4] A lithium secondary battery has a structure in which an electrolyte containing lithium salt is impregnated in an electrode assembly with a porous separator interposed between a positive electrode and a negative electrode, each of which is coated with an active material on an electrode current collector, and the electrode is an active material, a binder and a slurry in which a conductive material is dispersed in a solvent is applied to a current collector, dried and pressed. [5] Lithium metal was used as a negative electrode of a conventional secondary battery, but as the battery short circuit due to the formation of dendrites and the risk of explosion due to this are known, reversible intercalation of lithium ions while maintaining structural and electrical properties ) and carbon-based compounds capable of desorption are being replaced. [6] The carbon-based compound has a very low discharge potential of about -3 V with respect to a standard hydrogen electrode potential, and excellent electrode life characteristics (cycle life) due to a very reversible charge/discharge behavior due to the uniaxial orientation of the graphite layer indicates In addition, since the electrode potential is 0V Li/Li+ when charging Li ions and can exhibit a potential almost similar to that of pure lithium metal, there is an advantage that higher energy can be obtained when an oxide-based positive electrode and a battery are formed. [7] Natural graphite, which is commonly used as an anode, has a large capacity per unit weight, but has a disadvantage in that when the electrode is rolled, the orientation degree is increased, so that the input/exit characteristics of lithium ions are lowered, and the rapid charging characteristics of the battery are lowered. DETAILED DESCRIPTION OF THE INVENTION technical challenge [8] Accordingly, the present invention is to solve the above problems, and one object of the present invention is to provide an anode active material having high initial efficiency and excellent fast charging performance, and a method of manufacturing the anode active material. [9] Another object of the present invention is to provide a negative electrode including the negative electrode active material and a lithium secondary battery having the same. means of solving the problem [10] In order to solve the problems of the present invention described above, according to an aspect of the present invention, there is provided a negative electrode active material of the following embodiments. [11] According to a first embodiment, [12] graphite core; [13] a first carbon coating layer surrounding the outer side of the graphite core; and [14] Including; a second carbon coating layer surrounding the outer side of the first carbon coating layer; [15] The second carbon coating layer has a smaller crystallinity than the first carbon coating layer, [16] Alternatively, an anode active material is provided in which the second carbon coating layer includes hard carbon, and the first carbon coating layer includes soft carbon. [17] According to a second embodiment, according to the first embodiment, [18] The content of the first carbon coating layer and the content of the second carbon coating layer may each independently be 3 to 6 parts by weight based on 100 parts by weight of the graphite core. [19] According to a third embodiment, according to the first or second embodiment, [20] The average particle diameter (D50) of the negative active material may be 7 to 25㎛. [21] According to a fourth embodiment, according to any one of the first to third embodiments, [22] The average particle diameter (D50) of the graphite core may be 5 μm to 20 μm. [23] According to a fifth embodiment, according to any one of the first to fourth embodiments, [24] A full width at half-maximum (FWHM) value of the D band of the second carbon coating layer may be 1.3 times greater than a FWHM value of the D band of the first carbon coating layer. [25] According to a sixth embodiment, according to any one of the first to fifth embodiments, [26] A full width at half-maximum (FWHM) value of the D band of the second carbon coating layer may be 1.3 times to 3 times greater than a FWHM value of the D band of the first carbon coating layer. [27] According to one aspect of the present invention, there is provided a method for preparing a negative active material of the following embodiments. [28] According to a seventh embodiment, [29] Mixing graphite and a first carbon precursor and performing a first heat treatment at a temperature of 1,400 to 1,600° C. to form a first carbon coating layer surrounding the outer side of the graphite core with the graphite as a graphite core; and [30] Mixing the resultant of the step of forming the first carbon coating layer and the second carbon precursor and performing a second heat treatment at a temperature of 1,100 to 1,300 ° C. to form a second carbon coating layer surrounding the outside of the first carbon coating layer; There is provided a method of manufacturing the negative active material of the first embodiment, characterized in that it comprises. [31] According to the eighth embodiment, according to the seventh embodiment, [32] The first carbon coating layer and the second carbon coating layer may be formed such that the content of the first carbon coating layer and the content of the second carbon coating layer of the negative electrode active material are each independently 3 to 6 parts by weight based on 100 parts by weight of the graphite core. . [33] According to a ninth embodiment, [34] As an anode comprising a current collector, and a negative electrode active material layer positioned on at least one surface of the current collector, [35] An anode is provided, wherein the anode active material layer includes the anode active material according to any one of the first to sixth embodiments. [36] According to one aspect of the present invention, there is provided a lithium secondary battery of the following embodiments. [37] According to a tenth embodiment, [38] A lithium secondary battery including the negative electrode according to the ninth embodiment is provided. Effects of the Invention [39] According to one embodiment of the present invention, in order to increase the amount of carbon coating on natural graphite, carbon coating is performed on natural graphite as a double layer, and a negative electrode active material in which the crystallinity of the carbon coating layer of the double layer is controlled is provided, When such a negative active material is applied to the negative electrode of a secondary battery, it is possible to provide a secondary battery having high initial efficiency and excellent fast charging performance. Modes for carrying out the invention [40] Hereinafter, the terms or words used in the present specification and claims should not be construed as being limited to conventional or dictionary meanings, and the inventor appropriately defines the concept of the term in order to best describe his invention. It should be interpreted as meaning and concept consistent with the technical idea of ​​the present invention based on the principle that it can be done. [41] An anode active material according to an aspect of the present invention, [42] graphite core; [43] a first carbon coating layer surrounding the outer side of the graphite core; and [44] Including; a second carbon coating layer surrounding the outer side of the first carbon coating layer; [45] The second carbon coating layer has a smaller crystallinity than the first carbon coating layer, [46] Alternatively, the second carbon coating layer includes hard carbon, and the first carbon coating layer includes soft carbon. [47] The graphite core may be artificial graphite, natural graphite, or a combination thereof, that is, the graphite core may be made of crystalline graphite. In general, since natural graphite has a higher capacity than artificial graphite, when natural graphite is used as the graphite core, it may be advantageous in terms of capacity. [48] The shape of the graphite core is not particularly limited, but may be spherical. The spherical shape may be prepared by a spheroidization method commonly known in the art using the graphite core as a raw material. For example, it can be manufactured by applying a mechanical treatment such as impact compression, friction, or shearing force to the raw material, so that the particles constituting the graphite core are bent or mixed and the corners are cut. The mechanical treatment may be performed using a spheronization apparatus commonly known in the art, for example, a counter jet mill (Hosokawa Micron, JP), an ACM palverizer (Hosokawa Micron, JP), a current jet (Nissin, JP), etc. of crushers, SARARA (Kawasaki Heavy Industries, Ltd, JP), GRANUREX (Freund Corporation, JP), New Gramasin (Seichin, JP), Achroma Star (Hosokawa Micron, JP), etc. granulators, dispersion kneaders, A kneading machine such as two rolls, a mechano micro system, an extruder, a balling, a planetary mill, a mechano fusion system, a Nobilta, a hydridization, a compression shearing processing apparatus such as a rotary ball mill, etc. can be used. [49] The graphite core may have an average particle diameter (D50) of 5 μm to 20 μm, or 8 μm to 12 μm. If the graphite core is within the above average particle diameter range, the first carbon coating layer may be sufficiently uniformly formed on the surface of the graphite core. The output characteristics and cycle characteristics of the lithium secondary battery may be excellent. [50] The negative electrode active material of the present invention includes a first carbon coating layer surrounding the outer side of the graphite core, and sequentially includes a second carbon coating layer surrounding the outer side of the first carbon coating layer. [51] If the coating amount of amorphous carbon having a lower crystallinity (crystallinity) than that of normal graphite is increased, the rapid charging performance is increased. However, if the amount of carbon coating is too excessive, the coated carbon powders are entangled with each other, and disintegration between the anode active materials does not work well during the manufacture of the anode active material, so the average particle diameter (D50) of the anode active material becomes very large, so that the coating process during the manufacture of the anode This may be difficult, and a problem of a decrease in rate-rate characteristics and a problem of a decrease in the capacity of the electrode in the optimum density may occur. [52] On the other hand, if a single carbon coating layer is formed at a time to correspond to the total content of the content (coating amount) of the first carbon coating layer and the second carbon coating layer of the present invention, a problem in that the material for forming the carbon coating layer is agglomerated may occur. have. [53] In the present invention to solve this problem, the first carbon coating layer surrounding the outer side of the graphite core; and a second carbon coating layer surrounding the outer side of the first carbon coating layer; including a double-layer carbon coating layer. [54] In this case, the first carbon coating layer and the second carbon coating layer may be selected separately according to crystallinity or constituent materials. [55] The second carbon coating layer has a smaller crystallinity than the first carbon coating layer (first type), or the first carbon coating layer includes soft carbon and the second carbon coating layer includes hard carbon (second type). [56] The first carbon coating layer and the second carbon coating layer may be formed by mixing and firing an amorphous carbon-based material corresponding to a carbon precursor with a material to be coated, respectively. Specifically, the first carbon coating layer may be formed to surround the outside of the graphite core by mixing graphite and the first carbon precursor and heat treatment (first heat treatment), and the second carbon coating layer is the first carbon coating layer outside It may be formed to surround the outer side of the first carbon coating layer by mixing the surrounding graphite core and the second carbon precursor and performing heat treatment (second heat treatment). [57] Examples of the amorphous carbon-based active material include sucrose, phenol resin, naphthalene resin, polyvinyl alcohol resin, furfuryl alcohol resin, polyacrylonitrile resin, polyamide resin, furan resin, cellulose resin, styrene Hard carbon raw material of resin, polyimide resin, epoxy resin, or vinyl chloride resin; And it may be obtained from one or two or more amorphous carbon precursors selected from the group consisting of coal-based pitch, petroleum-based pitch, polyvinyl chloride, mesophase pitch, tar, or a soft carbon raw material of heavy oil, but is not limited thereto. . [58] The crystallinity of the first carbon coating layer and the second carbon coating layer may be confirmed by comparing the FWHM (Full width at half-maximum) values ​​of the G band and the D band of Raman spectroscopy. [59] The Raman spectroscopic analysis method is a method of analyzing the structure of the carbon coating layer of the first carbon coating layer and the second carbon coating layer, and the peak present in the region near the wave number 1580 cm -1 in the Raman spectrum of the carbon coating layer is called the G band, which is As a peak indicating sp2 bonding of the carbon coating layer, it indicates a carbon crystal without structural defects. Meanwhile, in the Raman spectrum, the peak present in the region near the wave number of 1360 cm -1 is called the D band, which is a peak representing the sp3 bond of the carbon coating layer, and increases when the atomic bond consisting of the sp2 bond is broken to form an sp3 bond. Such a D band increases when a disorder or a defect existing in the carbon coating layer is generated. [60] In the present invention, the G band of the Raman spectrum for the carbon coating layer may be a peak present in a wavenumber region of 1550 cm -1 to 1620 cm -1 , and the D band is present in a wavenumber region of 1330 cm -1 to 1370 cm -1 . It may be a peak to The wavenumber ranges for the G and D bands correspond to ranges that can be shifted depending on the laser light source used for the Raman analysis. The Raman value used in the present invention is not particularly limited, but may be measured at a laser wavelength of 532 nm using a DXR Raman Microscope (Thermo Electron Scientific Instruments LLC). [61] According to one embodiment of the present invention, the FWHM value of the D band of the second carbon coating layer may be 1.3 times or more greater than the FWHM value of the D band of the first carbon coating layer, specifically 1.3 to 3 times larger, and , more specifically 1.3 to 2.7 times, more specifically 1.3 to 2 times larger. When the ratio of the FWHM value of the D band of the second carbon coating layer to the FWHM value of the D band of the first carbon coating layer satisfies this range, more defects present in the second carbon coating layer are generated, The crystallinity (degree of crystallinity) of the second carbon coating layer becomes smaller than that of the first carbon coating layer. [62] In a carbon material, in the case of a carbon material having a high degree of crystallinity, the interplanar distance of the carbon layers becomes small, whereas in the case of an amorphous carbon material having a small degree of crystallinity, the interplanar distance of the carbon layer becomes large. When charging a secondary battery using such a carbon material as an anode active material, in a carbon material with a high crystallinity such as graphite, the interplanar distance of the carbon layer is small, so it is difficult for lithium ions to penetrate from the electrolyte to the graphene layer at once, but the crystallinity is higher than that of graphite. In the case of a small amorphous carbon material, since the interplanar distance of the carbon layer is large, the penetration of lithium ions is easy, so that the intercalation rate of lithium ions into the carbon layer is much faster. [63] The anode active material of the present invention is designed so that the degree of crystallinity of the carbon material increases from the second carbon coating layer, which is the outermost layer, through the first carbon coating layer, to the graphite core in the middle. That is, the second carbon coating layer, which the electrolyte first comes into contact with, has the smallest crystallinity, and thereafter, the first carbon coating layer having a relatively larger crystallinity than the second carbon coating layer, and the graphite core having the largest crystallinity are disposed. It easily penetrates into the anode active material and allows lithium ions to be rapidly inserted into the carbon layer, thereby exhibiting excellent properties in terms of rapid charging. [64] In the second type, the first carbon coating layer includes soft carbon, and the second carbon coating layer includes hard carbon. [65] The soft carbon (e-graphitized carbon, soft carbons) is a by-product generated in the crude oil refining process, coke, needle coke or coal tar pitch (Coal Tar Pitch), petroleum pitch (Petroleum Pitch), or a mixture of two or more thereof 1000 It can be made by applying heat to the degree of °C. [66] The hard carbon (non-graphitizing carbon, hard carbon) is sucrose, phenol resin, furan resin, furfuryl alcohol, polyacrylonitrile, polyimide (polyimide), epoxy resin (epoxy resin), cellulose (cellulose), styrene (styrene), or a mixture of two or more of these carbonaceous material may include carbonized [67] In the hard carbon, since the carbon layers are strongly entangled with each other, the crystallite size is very small, and the structural disorder in the precursor is strong, it is difficult to rearrange the crystal structure for graphitization even by sintering at a high temperature of 2,500° C. or higher. On the other hand, in the case of soft carbon, which is easy to graphitize, crystalline graphitization can easily proceed because the graphite layer planes form a structure in which the planes of the graphite layer are relatively parallel to each other. [68] In the second type of negative electrode active material, the first carbon coating layer located inside in contact with the graphite core contains soft carbon, and the second carbon coating layer, which is the outermost layer of the negative electrode active material, is designed to include hard carbon, have. As described in the first type described above, even in the second type of anode active material, the second carbon coating layer, which the electrolyte first comes into contact with, contains hard carbon having very small crystallites and strong structural disorder in the precursor. In hard carbon, the interplanar distance of the carbon layer is relatively large, so that penetration of lithium ions contained in the electrolyte is quite easy. On the other hand, in the first carbon coating layer, since the graphene layer planes are relatively parallel to each other and the interplanar distance of the carbon layer is small, it may be difficult for the liquid electrolyte to penetrate between the graphene layers at once compared to the second carbon coating layer. As a result, the second carbon coating layer that the electrolyte first comes into contact with includes hard carbon having a higher structural disorder, and thereafter, it includes soft carbon in which the graphene layer planes are relatively parallel than the second carbon coating layer. When the graphite core in which the first carbon coating layer and the graphene layer are regularly stacked very close to each other are arranged, lithium ions contained in the initial electrolyte easily penetrate into the negative electrode active material, so that the lithium ions are rapidly inserted into the carbon layer. Therefore, it is possible to exhibit excellent characteristics in terms of fast charging. [69] According to one embodiment of the present invention, the content of the first carbon coating layer and the content of the second carbon coating layer may each independently be 3 to 6 parts by weight, or 4 to 5 parts by weight based on 100 parts by weight of the graphite core. [70] When the content of the first carbon coating layer and the content of the second carbon coating layer satisfy these ranges, the graphite core can be sufficiently coated to effectively prevent direct contact with the electrolyte, and the surface of the active material has an appropriate amount of crystallinity. Since it is coated with low amorphous carbon, output characteristics and rapid charging characteristics can be improved, and depending on the formation of an excessive amount of carbon coating layer, charging and discharging of a lithium secondary battery containing it as an anode active material is difficult or lithium is inserted into the anode. Since the absolute amount of available space is reduced, a problem in which the capacity of the lithium secondary battery is reduced can be prevented. [71] The average particle diameter (D50) of the negative active material may be 7 to 25 μm, or 8 to 22 μm. When the average particle diameter (D50) of the negative electrode active material satisfies this range, it is easy to handle such as mixing during slurry preparation, thereby improving processability, exhibiting excellent fast charging performance, and preventing a decrease in the capacity of the electrode. [72] [73] According to another aspect of the present invention, there is provided a method of manufacturing the negative active material. [74] A method of manufacturing a negative active material according to an embodiment of the present invention, [75] Mixing graphite and a first carbon precursor and performing a first heat treatment at a temperature of 1,400 to 1,600° C. to form a first carbon coating layer surrounding the outer side of the graphite core with the graphite as a graphite core; and [76] Mixing the resultant of the step of forming the first carbon coating layer and the second carbon precursor and performing a second heat treatment at a temperature of 1,100 to 1,300 ° C. to form a second carbon coating layer surrounding the outside of the first carbon coating layer; include [77] [78] First, the graphite and the first carbon precursor are mixed, and a first heat treatment is performed at a temperature of 1,400 to 1,600° C. to form a first carbon coating layer surrounding the outer side of the graphite core with the graphite as the graphite core. [79] The graphite may be artificial graphite, natural graphite, or a combination thereof. [80] An amorphous carbon-based material may be applied to the first carbon precursor, and examples thereof include sucrose, phenol resin, naphthalene resin, polyvinyl alcohol resin, furfuryl alcohol resin, polyacrylonitrile resin, poly hard carbon raw materials of amide resin, furan resin, cellulose resin, styrene resin, polyimide resin, epoxy resin or vinyl chloride resin; And it may be obtained from one or more amorphous carbon precursors selected from the group consisting of coal-based pitch, petroleum-based pitch, polyvinyl chloride, mesophase pitch, tar or soft carbon raw material of heavy oil, but is not limited thereto. . [81] A method of mixing the graphite and the first carbon precursor is not particularly limited and may be performed by a method commonly known in the art. For example, using a mechanochemical method such as a kneader such as two rolls, a blade, a mechano micro system, an extruder, a ball mill, a planetary mill, a mechano fusion system, a novelta, hydridization, a rotary ball mill, or It may be carried out using a spray dry method, an emulsion method, or the like. [82] The first heat treatment temperature may be 1,400 to 1,600 °C, and according to one embodiment of the present invention, 1,450 to 1,550 °C. When the first heat treatment temperature satisfies this range, micropores of the graphite core may be maintained, and the amorphous carbon material precursor may be sufficiently carbonized. [83] Next, the resultant of the step of forming the first carbon coating layer and the second carbon precursor are mixed, and a second heat treatment is performed at a temperature of 1,100 to 1,300 ° C. to form a second carbon coating layer surrounding the outside of the first carbon coating layer. . [84] An amorphous carbon-based material may be applied to the second carbon precursor in the same manner as that of the first carbon precursor, and in this case, the same type of amorphous carbon-based material may be used as the first carbon precursor and the second carbon precursor, and different types of carbon-based material may be used. Amorphous carbon-based materials may also be used. [85] In addition, the method of mixing the result of the step of forming the first carbon coating layer and the second carbon precursor may be selected from the method of mixing the graphite core and the first carbon precursor. [86] The second heat treatment temperature is 1,100 to 1,300 ℃, according to an embodiment of the present invention, may be 1,150 to 1,250 ℃. [87] When a single carbon coating layer having the total content (coating amount) of the first carbon coating layer and the second carbon coating layer is formed at once, a problem in that the material for forming the carbon coating layer is agglomerated occurs. In the embodiment, the first carbon coating layer and the second carbon coating layer are separately formed to prevent this problem. [88] In addition, even when the first carbon coating layer and the second carbon coating layer are separately formed, if the heat treatment temperature of each forming step is performed at 1,100 to 1,300° C. corresponding to the second heat treatment temperature, the initial efficiency of the negative electrode active material decreases. problems may arise. If the heat treatment temperature of each forming step is performed at 1,400 to 1,600° C. corresponding to the first heat treatment temperature, a problem in which the rapid charging performance of the negative electrode active material is lowered may occur. [89] [90] A method for producing a negative active material according to another embodiment of the present invention, [91] mixing graphite and a first carbon precursor and performing a first heat treatment to form a first carbon coating layer surrounding the graphite core with the graphite as a graphite core; and [92] Including; mixing the resultant of the previous step and the second carbon precursor and performing a second heat treatment to form a second carbon coating layer surrounding the outer side of the first carbon coating layer; [93] In this case, the first carbon precursor is a material that becomes soft carbon after heat treatment, and the second carbon precursor is a material that becomes hard carbon after heat treatment. [94] First, graphite and a first carbon precursor are mixed and subjected to a first heat treatment to form a first carbon coating layer surrounding the outer side of the graphite core with the graphite as a graphite core. [95] The first carbon precursor can be applied without limitation as long as it is a material that becomes soft carbon after heat treatment, and examples thereof include coke, needle coke or coal tar pitch, petroleum pitch, or two of them. The above mixtures may be applied. [96] A method of mixing the graphite and the first carbon precursor may be selected from the above-described methods of mixing the graphite and the first carbon precursor. [97] The first heat treatment temperature may be 1,400 to 1,600 °C, and according to one embodiment of the present invention, 1,450 to 1,550 °C. When the first heat treatment temperature satisfies this range, micropores of the graphite core may be maintained, and the amorphous carbon material precursor may be sufficiently carbonized. [98] Next, the resultant of the previous step and the second carbon precursor are mixed, and a second heat treatment is performed to form a second carbon coating layer surrounding the outside of the first carbon coating layer. [99] As the second carbon precursor, any material that becomes hard carbon after heat treatment may be applied, and examples thereof include sucrose, phenol resin, furan resin, furfuryl alcohol, Polyacrylonitrile, polyimide, epoxy resin, cellulose, styrene, or a mixture of two or more thereof may be applied. [100] [101] A method of mixing the resultant of the previous step and the second carbon precursor may be selected from the above-described method of mixing the graphite and the first carbon precursor. [102] At this time, the second heat treatment temperature may be 1,100 to 1,300 ℃, according to an embodiment of the present invention, 1,150 to 1,250 ℃. [103] According to one embodiment of the present invention, the content of the first carbon coating layer and the content of the second carbon coating layer of the negative active material are each independently 3 to 6 parts by weight, or 4 to 5 parts by weight based on 100 parts by weight of the graphite core. The first carbon coating layer and the second carbon coating layer may be formed so as to be possible. [104] When the content of the first carbon coating layer and the content of the second carbon coating layer satisfy these ranges, the graphite core can be sufficiently coated to effectively prevent direct contact with the electrolyte, and the surface of the active material has an appropriate amount of crystallinity. It is coated with amorphous carbon that has a low level of carbon, so output characteristics and rapid charging characteristics can be improved. Depending on the formation of a carbon coating layer with an excessive content, charging and discharging of a lithium secondary battery containing it as an anode active material is difficult or lithium is inserted into the anode Since the absolute amount of available space is reduced, a problem in which the capacity of the lithium secondary battery is reduced can be prevented. [105] [106] According to another aspect of the present invention, there is provided an anode including the anode active material. [107] Specifically, the negative electrode according to an embodiment of the present invention includes a current collector, and a negative electrode active material layer including the negative electrode active material according to the present invention on at least one surface of the current collector. [108] The electrode layer can be prepared by coating the slurry for the negative electrode active material layer obtained by dispersing the negative electrode active material, the binder and the conductive material according to the present invention in a solvent on at least one surface of the current collector, followed by drying and rolling. [109] The current collector is not particularly limited as long as it has conductivity without causing chemical change in the battery, and for example, copper, stainless steel, aluminum, nickel, titanium, calcined carbon, carbon, nickel on the surface of copper or stainless steel. , titanium, silver, etc. surface-treated, aluminum-cadmium alloy, etc. may be used. The thickness of the current collector is not particularly limited, but may have a commonly applied thickness of 3 to 500 μm. [110] The negative active material may be included in an amount of 80% to 99% by weight based on the total weight of the negative electrode slurry composition. [111] The binder is a component that assists in bonding between the conductive material, the active material, or the current collector, and is typically included in an amount of 0.1 to 20% by weight based on the total weight of the negative electrode slurry composition. Examples of such binders include polyvinylidene fluoride-hexafluoropropylene copolymer (PVDF-co-HEP), polyvinylidenefluoride, polyacrylonitrile, polymethylmethacrylate , polyvinyl alcohol, carboxymethyl cellulose (CMC), starch, hydroxypropyl cellulose, regenerated cellulose, polyvinylpyrrolidone, tetrafluoroethylene, polyethylene, polypropylene, polyacrylic acid, styrene butyrene rubber (SBR), lithium -substituted polyacrylate (lithium polyacrylate, Li-PAA), and the like. [112] The conductive material is not particularly limited as long as it has conductivity without causing chemical change in the battery. For example, carbon such as carbon black, acetylene black, Ketjen black, channel black, Farness black, lamp black, thermal black, etc. black; conductive fibers such as carbon fibers and metal fibers; metal powders such as fluorocarbon, aluminum, and nickel powder; conductive whiskers such as zinc oxide and potassium titanate; conductive metal oxides such as titanium oxide; A conductive material such as a polyphenylene derivative may be used. The conductive material may be added in an amount of 0.1 to 20% by weight based on the total weight of the negative electrode slurry composition. [113] The dispersion medium may include water or an organic solvent such as N-methyl-2-pyrrolidone (NMP), in an amount that has a desirable viscosity when the negative electrode slurry contains a negative electrode active material, and optionally a binder and a conductive material. can be used [114] In addition, the coating method of the negative electrode slurry is not particularly limited as long as it is a method commonly used in the art. For example, a coating method using a slot die may be used, and in addition, a Mayer bar coating method, a gravure coating method, a dip coating method, a spray coating method, etc. may be used. [115] [116] Another embodiment of the present invention relates to a lithium secondary battery including the negative electrode. Specifically, the lithium secondary battery may be manufactured by injecting a lithium salt-containing electrolyte into an electrode assembly including a positive electrode, the negative electrode as described above, and a separator interposed therebetween. [117] For the positive electrode, a slurry is prepared by mixing a positive electrode active material, a conductive material, a binder, and a solvent, and then the slurry is directly coated on a metal current collector, or a positive electrode active material film, which is cast on a separate support and peeled from the support, is laminated on the metal current collector. Thus, a positive electrode can be manufactured. [118] As an active material used for the positive electrode, LiCoO 2 , LiNiO 2 , LiMn 2 O 4 , LiCoPO 4 , LiFePO 4 and LiNi 1-xyz Co x M1 y M2 z O 2 (M1 and M2 are each independently Al, Ni, Co, Fe, Mn, V, Cr, Ti, W, Ta, any one selected from the group consisting of Mg and Mo, x, y and z are each independently 0≤x<0.5, 0≤ as the atomic fraction of the oxide composition elements It may include any one active material particle selected from the group consisting of y<0.5, 0≤z<0.5, 0