This application claims the benefit of priority based on the March 10 Korea Patent Application No. 10-2017-0030399 and No. 07 dated March 2018 Korea Patent Application No. 10-2018-0026852 2017, and of the Korea Patent Application It includes all contents disclosed in the literature as part of the specification. [2] The present invention relates to a negative electrode and a lithium secondary battery comprising the same is the carbon-based thin film formed on at least one surface of the lithium metal. BACKGROUND [3] Recently, increasing interest in energy storage technology. Mobile phones, camcorders and notebook PC, furthermore there is a commitment to research and development of electrochemical devices embodied as applications are increasingly extended to the electric vehicle energy. [4] The electrochemical device is a field that receives the most attention in this respect, the development of secondary batteries that can be charged, discharged, among has become the focus of attention, in recent years, in order to improve capacity density and energy efficiency in developing such a battery it is proceeding with research and development for the design of new electrodes and batteries. [5] The lithium secondary battery is Ni-MH, Ni-Cd, sulfuric acid using an aqueous electrolyte solution developed in the early 1990's from the secondary batteries that are currently being applied - a high operating voltage as compared to conventional batteries such as lead battery, the energy density significantly greater advantages as it has been highlighted. [6] In general, the lithium secondary battery is an electrode assembly including a separator interposed between the positive electrode, a negative electrode and the positive electrode and the negative electrode incorporated in the battery case in a stacked or wound structure, is configured by being a non-aqueous electrolytic solution is injected therein. Lithium electrode as a cathode is used by attaching a lithium foil on the entire plane on the house. [7] Lithium secondary batteries to irregular formation and removal of Li during charging and discharging proceed are formed lithium dendrites which is leads to continuous capacity decreases. To solve this problem, the introduction of a polymeric protective layer or inorganic solid protective layer on the lithium metal current, or to increase or decrease the salt concentration of the electrolytic solution was carried out to study the application of the appropriate additives. But inhibiting lithium dendrites of these studies minor effects are the actual circumstances. Therefore, it is a lithium metal negative electrode itself to solve the problem by the structural modification in the form of deformation or cell can be an effective alternative. [8] [9] [Prior art document] [10] Republic of Korea Laid-Open Patent Publication No. 10-2013-0067920 No. "lithium secondary battery applying a cathode coating the carbon powder to the lithium surface." Detailed Description of the Invention SUMMARY [11] As it mentioned above, in order to solve the problem of the conventional lithium secondary battery has a problem of stability due to lithium dendrites generated during the charge and discharge the electrode surface and cause loss of performance. Thus, the present inventors have come to the end of performing the multi-dimensional studies, when depositing a carbon-based thin film on at least one surface of the lithium metal layer, suppressing the formation of lithium dendrite and completed the present invention confirmed that it is possible to improve the life characteristics. [12] It is therefore an object of the present invention is to provide a lithium secondary battery comprising a negative electrode for a lithium secondary battery, a preparation method thereof, and it comprises a carbon-based thin film on the electrode surface. Problem solving means [13] To achieve the above object, [14] The invention of lithium metal; And [15] It is deposited on at least one surface of the lithium metal, a carbon-based thin film having a thickness of 55 to 330nm; provides a lithium secondary battery anode comprising a. [16] In another aspect, the present invention sikidoe form a carbon-based thin film on at least one surface of a lithium metal, [17] The carbon-based thin film is sputtered (Sputtering), evaporation deposition (Evaporation), chemical vapor deposition (CVD: Chemical Vapor Deposition), physical vapor deposition (PVD: Physical Vapor Deposition), atomic layer deposition (ALD: Atomic Layer Deposition) and arc with at least one method selected by the discharge it provides a process for the production of a lithium secondary battery anode, characterized in that deposited on at least one surface of a lithium metal. [18] In addition, the present invention provides a lithium secondary battery comprising a positive electrode, a negative electrode and an electrolyte, the negative electrode there is provided a lithium secondary battery to the negative electrode of the present invention. Effects of the Invention [19] According to the invention, as well as neulryeojul a carbon-based thin film has a specific surface area of ​​the negative electrode at least formed on one surface of the lithium metal, to block side reactions caused by direct contact of the lithium metal and the electrolyte, suppressing lithium dendrite formation, and the current density distribution It is implemented by a uniform, to improve the cycle performance, by reducing the voltage, thereby improving the electrochemical performance of a lithium secondary battery. Brief Description of the Drawings [20] 1 is a schematic diagram representation of the charge or discharge of the lithium secondary battery comprising a negative electrode a carbon-based thin film is applied working principle according to the invention. [21] Figure 2 is a graph showing the charge-discharge capacity of the cycle in progress of the lithium secondary battery according to Examples 1 to 6 and Comparative Examples 1 to 3 of the present invention. [22] Figure 3 is a graph showing the coulombic efficiency of the cycle in progress of the lithium secondary battery according to Examples 1 to 6 and Comparative Examples 1 to 3 of the present invention. [23] Figure 4 is a graph showing the charge-discharge behavior of a over-voltage lithium symmetric cell according to the embodiment of the present invention, Examples 1 to 6 and Comparative Examples 1 to 3. [24] Figure 5 is the cathode scanning electron microscope after 200 cycles progress in the lithium symmetric cell according to a third embodiment of the present invention: a (SEM Scanning Electron Microscope) image. [25] 6 is a comparative example 1 the cathode scanning electron microscope after 200 cycles progress in the lithium symmetric cell according to the present invention: a (SEM Scanning Electron Microscope) image. [26] 7 is a comparative example 2 to the cathode scanning electron microscope after 200 cycles in accordance with progress of lithium symmetric cell of the present invention: a (SEM Scanning Electron Microscope) image. [27] 8 is a comparative example 3 the cathode scanning electron microscope after 200 cycles progress in the lithium symmetric cell according to the present invention: a (SEM Scanning Electron Microscope) image. Best Mode for Carrying Out the Invention [28] Or less, to the accompanying drawings so that the present invention can be easily self having ordinary skill in the art that belong to the reference embodiment will be described in detail. However, the present invention may be embodied in many different forms, and is not limited herein. [29] [30] The invention of lithium metal; And [31] It is deposited on at least one surface of the lithium metal, a carbon-based thin film having a thickness of 55 to 330nm; relates to a lithium secondary battery anode comprising a. [32] [33] Lithium metal layers [34] Or a lithium metal layer according to the present invention is a lithium metal sheet, the metal sheet may be an active layer comprising lithium metal or a lithium thin film on the negative electrode current collector is formed. To mean an active material layer of the full range capable of forming a lithium dendrites on the surface, such as lithium metal, lithium alloys, lithium metal composite oxide, lithium-containing titanium composite oxide (LTO), and selected from the group consisting of 1 it is possible species. To the lithium alloy comprises the element is lithium and the alloy as possible, where the elements Si, Sn, C, Pt, Ir, Ni, Cu, Ti, Na, K, Rb, Cs, Fr, Be, Mg, Ca , Sr, Sb, Pb, in, Zn, Ba, Ra, Ge, Al, or an alloy thereof may be. [35] Preferably may be a lithium dendrite is generated lithium metal or lithium alloy is by charge and discharge of the battery, it can be made to more preferably lithium metal. [36] The lithium metal is either a lithium metal or lithium alloy on the collector as the case may be, and daily number of sheet or foil is deposited or coated by the dry process the form, the form is made from metal and metal alloys on the particles of the deposited or coated by a wet process, one can. [37] The formation of a lithium-metal layer is not particularly limited, and a method of forming a metal thin film of a known lamination method, a sputtering method can be used. In addition, when the after assembling the battery, they do not have the lithium thin film on the current collector while the lithium metal thin film on the metal sheet by the initial charging form is also included in the lithium metal of the present invention. [38] For the negative electrode active material containing the lithium in the form of other non-active layer thin film form, it is prepared by typically made by performing a given coating process for coating the negative electrode current collector with the slurry mixture. [39] The lithium metal layer may be adjusted depending on the electrode width to the electrode shape to facilitate manufacture. The thickness of the lithium metal may be from 1 to 500 ㎛, preferably from 10 to 350 ㎛, more preferably from 50 to 200 ㎛. The thickness of the lithium metal is 1 to 500㎛ it is possible to provide a sufficient lithium source may serve to assist in the cycle life of a lithium secondary battery. [40] The lithium metal layer, if necessary, may further comprise a current collector to one side, specifically, the lithium metal may further comprise a current collector on one side are not in contact with the carbon-based thin film, which will be described later. Preferably, the lithium metal may be a cathode, and wherein the collector has a negative electrode current collector may be used. [41] The anode current collector is if it has suitable conductivity without causing chemical changes in the battery does not especially limited, copper, aluminum, stainless steel, zinc, titanium, silver, palladium, nickel, iron, chromium, alloys thereof, and as a combination may be selected from the group consisting. The stainless steel may be treated with carbon, nickel, titanium or silver surface, the alloy is aluminum - can be used for cadmium alloy, In addition, sintered carbon, a surface-treated with a conductive material, a non-conductive polymer, or a conductive polymer such as the can also be used. In total typically the negative electrode collector is applied to the copper foil. In addition, the form may be used in various forms, such as having a minute unevenness on a surface / non-formed films, sheets, foils, nets, porous structures, foams and non-woven fabrics. [42] In addition, the anode current collector is applied to a thickness range of from 3 to 500 ㎛. If the total thickness of the negative electrode current collector is less than 3 ㎛ falls the current collecting effect, whereas when the thickness is more than 500 ㎛ there is a problem in that workability is reduced when assembling a cell by folding (folding). [43] 1 is a schematic diagram representation of the charge or discharge of the lithium secondary battery comprising a negative electrode a carbon-based thin film is applied working principle according to the invention. When using the lithium metal as the negative electrode it may occur due to a number of factors during battery driving nonuniform electron density on the surface of lithium metal upset. The branches in the form of lithium dendrite (dendrite) on the electrode surface is created and the projection is formed or grown on the electrode surface and the electrode surface is very rough. Such lithium dendrites may results in a short circuit (short circuit) of the damage and cell membrane of a serious case 300 with the performance of the battery. As a result, the battery temperature rise there is a risk of explosion or fire of the battery. In the present invention, the lithium dendrite generated in the lithium metal surface, by preventing direct contact with the lithium metal layer 210 by introducing a carbon-based thin film 220 of a specific thickness range on the lithium metal layer 210 surface and the electrolyte inhibit the growth and enhance the stability of the cells and characters. [44] [45] The carbon-based thin film [46] Thin film 220 is a carbon-based according to the invention the at least formed on one side, does not participate in the charge and discharge on the negative electrode reacts with an inert lithium or lithium dendrite lithium intercalation material of the above-described lithium metal 210 It absorbs, for example, by forming. As a result, the internal short circuit of the battery is prevented thereby improving the cycle life characteristics when charging and discharging. [47] When the lithium dendrite water absorbent material is a carbon material in contact with each other is formed by the aggregation of the conductive network, whereby the first charged in the conductive network before charging is done on the negative electrode in accordance with will be written. After all the lithium dendrite absorption amount is reduced can result in a lowering of the cycle characteristic of the battery. Therefore, it is preferable to uniformly distribute the carbon material is a lithium dendrite absorbent material. [48] The thickness of the carbon-based thin film 220 according to the invention is formed to be 55 to 330 nm, preferably from 110 to 275 nm, more preferably 110 to 220 nm, and most preferably from 110 to 165 nm. The thickness of the carbon-based thin film 220 does not properly act as a less than 55 nm, and the protective film cracks, whereas if it exceeds 330 nm becomes the thickness of the negative electrode thick, there is a problem lowering the energy density. [49] The carbon-based thin film 220 according to the present invention can be prepared by employing the method of dry deposition. The dry deposition method is even a higher porosity in additional is not an additive material in a binder, such as carbon-based thin film of carbon-based thin film 220, which can increase the purity of the carbon material, the deposition is contained in the 220 than a wet deposition method so given, expanding the surface area it is possible to uniformly implement the current density distribution. [50] Non-limiting examples of such a dry deposition method is sputtering (Sputtering), evaporation deposition (Evaporation), chemical vapor deposition (CVD: Chemical Vapor Deposition), physical vapor deposition (PVD: Physical Vapor Deposition), atomic layer deposition (ALD: Atomic Layer Deposition) and access to one or more methods selected from the group consisting of arc discharge, and is preferably applied to the sputtering method. [51] Specifically, sputtering is applicable to a DC sputtering (DC sputtering), RF sputtering (RF sputtering), ion beam sputtering (Ion beam sputtering), the bias sputtering method at least one of (Bias sputtering) and magnetron sputtering (Magnetron Sputtering). [52] When forming the carbon-based thin film 220 by the sputtering method, without causing any change in the lithium metal layer 210 can form a coating layer having a uniform thickness. In addition, the carbon-based thin film 220 is produced by using this is so deposited as excellent adhesion without defects, such as the lithium metal layer 210 and the pores and cracks, and does not require further processing, such as adding a thin film or a heat treatment, such as bonding material. Therefore, it is preferable to reduce the time and cost of manufacturing a carbon-based thin film 220 by sputtering. [53] By adjusting the process parameters of the sputtering method, it is possible to control the microstructure, thickness, etc. of the carbon-based thin film 220. More specifically, it may adjust the other process parameters such as process gas, the process pressure, the target energy input, the cooling conditions in the deposition process, the sputtering type element (geometry), the time of deposition. [54] Process gas used in sputtering according to the invention is, for example, argon (Ar), helium (He), nitrogen (N 2 ), ammonia (NH 3 ), oxygen (O 2 ), nitrogen trifluoride (NF 3 ) and three tetrafluoromethane (CHF 3 is a) at least one selected from the gas to be used is preferred. [55] According to the conditions of the sputtering can be made to commonly employed, in one embodiment, the flow rate of the inert gas 5 ~ 1000 sccm (Standard Cubiccentimeter per minutes), the pressure is 0.1 ~ 10 mTorr, a substrate temperature of 400 ~ 1200 ℃ of in the condition, it may be prepared by the carbon as a sputtering target, wherein the inert gas is preferably argon (Ar) gas. [56] In addition, if the above conditions sputtering is less than 20 ~ 120 minutes, and preferably is carried out for 40 ~ 100 minutes, more preferably from 40 to 80 minutes, most preferably 40 to 60 minutes, the deposition time of 20 minutes the carbon-based thin film this does not properly cracks acts as a protective film having a thickness of 220 is too thin, while when the deposition time is more than 120 minutes there is the thickness of the carbon-based thin film 220 is thickened to break down the energy density becomes a problem. [57] After the deposition step, it is possible to selectively perform a heat treatment process, as needed. The heat treatment temperature may be 800 ~ 1500 ℃. It specifically to a rapid heat treatment temperature with the rate of temperature increase of up to 5 ~ 300 ℃ / sec formed by the heat treatment (rapid thermal anneal) is preferred. Such heat treatment processes may lead to the uniform alignment of the pores through the self-assembly of the deposited carbon particles. [58] The carbon-based thin film can be rolled lithium electrodes 220 are formed. The rolling step may be conducted in a usual manner, for example, a roll press in a way that compression with a pressure roller or the like comprising (roll press), or crimping over the front electrode plate in the press, in particular such a rolling process is 10㎏ / applying pressure to the ㎠ 100ton / ㎠, and can be heated to a temperature of 100 to 200 ℃. Heat treatment the temperature is included in all by following the rolling step in a heated while performing the rolling process, or heating performed before the rolling process conditions. [59] The thus formed carbon-based thin film 220 may be amorphous carbon. More specifically, the hard carbon, cokes, mesocarbon microbeads and then fired below 1500 ℃ (mesocarbon microbead: MCMB), mesophase pitch-based carbon fibers may be a (mesophase pitch-based carbon fiber MPCF), the carbon-based to preferred thin film 220 is composed of a hard carbon. The carbon-based thin film 220 is made of such an amorphous carbon has electrical conductivity and wide specific surface area of ​​the carbon-based thin film 220, while maintaining a high, and a flow (flux) and the current density distribution of the lithium ions to be well lithium dendrite growth suppression and allow for increasing the reversibility is advantageous. [60] [61] Organic sulfur-protective layer [62] According to the invention, the carbon-based thin film 220 is a lithium metal layer 210 to inhibit the growth of dendrite is generated on the surface, addition of organic sulfur containing organic sulfur compounds in the protective layer (not shown), lithium metal ( 210) and can be further included between one surface of the carbon-based thin film 220 are not in contact, or the carbon-based thin film 220 and the lithium metal (210). This protective layer prevents makes a direct contact with water or oxygen in the air as well as to improve the life characteristics of the battery and prevent the formation of dendrites formed on the surface of the lithium metal during charging on the lithium metal surface, oxidation of the lithium metal can do. [63] Although the use of both a monomer or a polymer containing thiol groups with an organic sulfur compound, is preferable because the monomer containing more thiol groups. [64] Examples of the organic sulfur compound is 2, 5-mercapto-1,3,4-thiadiazole dimmer, bis (2-mercapto-ethyl) ether, N, N'- dimethyl -N, N'- dimmer mercaptomethyl ethylene-diamine, N, N, N ', N'- tetra-mercapto-ethylene diamine, 2,4,6-trimmer Cobb tote Ria sol, N, N'- dimmer mercapto-piperazine, 2,4-mercapto toffee limiter Dean, 1,2-ethanedithiol and bis (2-mercapto-ethyl) can be used at least one compound selected from the group consisting of sulfide. Among the 2,5-mercapto-1,3,4-thiadiazole it is preferred dimmer. [65] The organic sulfur compound is preferably one containing a thiol group in the terminal groups, organic sulfur compound having a thiol group is such it is possible to form a lithium-metal complex is advantageous and easy to coat. In addition, it is possible to suppress dendrite formation to ensure electronegativity of the large I and the large amount S or N times the lithium ions are easy to uniformly deposited (deposition) onto the surface of the lithium metal during charging to the lithium ion. [66] Wherein the organic sulfur-protecting layer preferably includes an organic sulfur compounds of organic sulfur-protective layer 50 to 100% by weight relative to the total weight, more preferably 50 to 70% by weight. Can not get enough to effect coating is the amount of the organic sulfur compound is less than 50% by weight. [67] Moreover, the organic sulfur-protective layer may further include an electron conductive polymer, giving to the electronic conductivity to facilitate the cation transport. [68] The electronic conductive polymer include polyaniline, poly (p- phenylene), polythiophene, poly (3-alkylthiophene), poly (3-alkoxy-thiophene), Poly (crown ether thiophene), polypyrrole, poly ( dialkyl-2,2'-bipyridine), poly pyridine, polyalkyl pyridine, poly (2,2'-bipyridine), poly (di-alkyl-2,2'-bipyridine), poly pyrimidine, polydioxanone dihydro-phenanthrene, polyquinoline, poly isoquinoline, poly (2,3-benzo-thiadiazole), poly (benzimidazole), poly (quinoxaline) (poly (quinoxaline)), poly (2,3- diaryl quinoxaline), poly (1, 5-naphthyridine) (poly (1,5-naphthyridine)), poly (1,3-cyclohexadiene), poly (anthraquinone), poly (methyl Z- anthraquinone ), it may comprise a poly (ferrocene) and at least one compound selected from the group consisting of poly (non-6,6'-quinoline). In the alkyl group refers to an aliphatic hydrocarbon group having 1 to 8 carbons. When substituted with the hydrocarbon group of the electron-conducting polymer may be sulfonated to facilitate cation transport more effectively. [69] In the method of forming the organic sulfur protective layer on one surface of the carbon-based thin film 220 is not restricted, is preferably a method such as a wet coating, the coating methods include spin coating, dipping method (dipping), spraying, casting, It can be utilized and the present invention is not limited thereto. After vacuum drying the coating and rolling to prepare a lithium metal anode is coated with an organic sulfur compound. [70] [71] Method for manufacturing a lithium secondary battery negative electrode [72] The invention also sikidoe form a carbon-based thin film on at least one surface of a lithium metal, [73] The carbon-based thin film is sputtered (Sputtering), evaporation deposition (Evaporation), chemical vapor deposition (CVD: Chemical Vapor Deposition), physical vapor deposition (PVD: Physical Vapor Deposition), atomic layer deposition (ALD: Atomic Layer Deposition) and arc by one or more selected to discharge a method for producing a lithium secondary battery negative electrode that is deposited on at least one surface of the lithium metal. [74] Deposition methods and conditions of the carbon-based thin film and the like are the same as those that apply to the above-described carbon-based thin film. [75] [76] The lithium secondary battery [77] The lithium secondary battery according to the present invention can be produced through a known technique that is normally carried out for a supplier party other than the structure and properties of the above-described negative electrode remaining configuration, and will be described in detail below. [78] A positive electrode 100 in accordance with the present invention may be film-forming compositions comprising a positive electrode active material, conductive material and a binder on a positive electrode collector to be prepared in the form of a positive electrode. [79] The positive active material may vary according to the application of the lithium secondary battery, a specific composition is used a known material. In any of the lithium transition metal oxide selected from the group consisting of cobalt oxide - for example, lithium cobalt oxide, lithium manganese oxide, lithium copper oxide, lithium nickel oxide and lithium manganese composite oxide, lithium-nickel-manganese number and, more specifically, Li 1 + x Mn 2-x O 4 (where, x is from 0 to 0.33), LiMnO 3 , LiMn 2 O 3 , LiMnO 2 Li-Mn oxide and the like; Lithium copper oxide (Li 2 CuO 2 ); LiV 3 O 8 , LiFe 3 O 4 , V 2 O 5 , Cu 2 V 2 O 7 of vanadium oxide and the like; LiNi 1-x M x O 2 (where, the M = Co, Mn, Al, Cu, Fe, Mg, B or Ga, x = 0.01 to 0.3), lithium nickel oxide, which is represented by; LiMn 2-x MxO 2 (where, M = Co, Ni, Fe , Cr, and Zn, or Ta, x = 0.01 to 0.1 Im) or Li 2 Mn 3 MO 8 (where, M = Fe, Co, Ni , Cu or Zn) of lithium manganese complex oxide, Li (Ni, which is represented by a Co b Mn c ) O 2 (where, 0