[One]The present invention relates to a quantitative analysis method of a carbon-based hybrid anode. [2] This application claims priority based on Korean Application No. 10-2019-0139764 filed on November 4, 2019, and all contents disclosed in the specification of the application are incorporated herein by reference. background [3] In recent years, the market for electric vehicles, robots, and power storage devices has rapidly developed, requiring secondary batteries with high energy density, stability, miniaturization, weight reduction, and long lifespan. Whether it is applied to such a large-scale field depends on securing the performance of the secondary battery with a higher energy density per weight or volume than the current level of energy density. [4] Graphite, which is currently commercialized as an anode active material for lithium-ion batteries, has a theoretical capacity of 372 mAh/g (about 160Wh/kg). Silicon (Si), which has a capacity (4200 mAh/g) more than 10 times that of graphite, is attracting attention as a negative electrode material for a next-generation non-aqueous electrolyte secondary battery. In addition, as a new material to replace carbon-based materials such as graphite, it has been proposed to use various non-carbon-based materials as negative electrode active materials in addition to silicon alloying with lithium and exhibiting high theoretical capacity. [5] However, due to the high volume expansion rate of the silicon-based material in the process of alloying with lithium, cracks in the inside and the surface of the electrode are generated, the active material is dropped, and the cycle capacity of the secondary battery may rapidly deteriorate due to deterioration of electrical contact. In order to solve the problems of the silicon-based material, attempts are actively being made to apply a hybrid negative electrode in which a non-carbon-based material such as a silicon-based material and a carbon-based material are mixed. [6] In order to improve battery performance, such as increasing the energy density of a secondary battery having such a hybrid negative electrode, a carbon-based material constituting the hybrid negative electrode during insertion and delithiation of lithium ions during charging/discharging of the secondary battery There is a need to separate analysis and degeneration diagnosis for non-carbon materials and non-carbon materials. DETAILED DESCRIPTION OF THE INVENTION technical challenge [7] An object of the present invention is to provide a method for quantitative analysis of a carbon-based hybrid anode. [8] Other objects and advantages of the present invention will be understood by the following description. On the other hand, it will be easily understood that the objects and advantages of the present invention can be realized by means or methods described in the claims, and combinations thereof. means of solving the problem [9] In order to solve the problems of the present invention, according to an aspect of the present invention, there is provided a quantitative analysis method of the carbon-based hybrid negative electrode of the following embodiment. [10] According to a first embodiment, [11] Preparing a secondary battery having a carbon-based hybrid negative electrode including a carbon-based negative active material and a non-carbon-based negative active material; [12] By measuring the lattice spacing (d-spacing) of the carbon-based negative active material in the carbon-based hybrid negative electrode during charging and discharging of the secondary battery using an X-ray diffractometer, charge and discharge capacity (X axis) plotting the change of the grid spacing value versus the graph; and [13] quantifying the capacity contributed by the carbon-based negative active material and the non-carbon-based negative active material in the total discharge capacity of the secondary battery by confirming the inflection point of the slope of the graph during the discharge in the plotted graph; A quantitative analysis method of a carbon-based hybrid negative electrode is provided. [14] According to a second embodiment, according to the first embodiment, [15] The discharge capacity after the inflection point may correspond to a portion of the capacity contributed by the non-carbon-based negative active material, and the discharge capacity before the inflection point may correspond to a portion of the capacity contributed by the carbon-based negative active material. [16] According to a third embodiment, according to the first or second embodiment, [17] By calculating the ratio of the maximum capacity of the graph to the discharge capacity value after the inflection point, it is possible to quantify the capacity contributed by the non-carbon-based negative active material in the carbon-based hybrid negative electrode. [18] According to a fourth embodiment, according to any one of the first to third embodiments, [19] When the secondary battery is charged and discharged a plurality of times and the capacity characteristic is deteriorated, [20] Compared to the position of the inflection point of the slope of the graph during the initial charge/discharge, the cause of the deterioration of the secondary battery is the carbon-based negative active material and It can be determined which of the non-carbon-based negative active materials originates from. [21] According to a fifth embodiment, according to any one of the first to fourth embodiments, [22] As a result of analyzing the position of the inflection point of the slope of the graph during charging and discharging after degradation, compared to the position of the inflection point of the slope of the graph during the initial charge/discharge, the capacity of the portion from the inflection point to the maximum capacity was reduced based on the inflection point . If the negative electrode active material is degraded, and the capacity of the portion is reduced from the inflection point to the capacity 0, it may be determined that the non-carbon-based negative electrode active material is degraded. [23] According to a sixth embodiment, according to any one of the first to fifth embodiments, [24] The carbon-based negative active material may include natural graphite, artificial graphite, soft carbon, hard carbon, pitch carbide, calcined coke, graphene, carbon nanotubes, or two or more of these. [25] According to a seventh embodiment, according to any one of the first to sixth embodiments, [26] The non-carbon-based negative active material may include a metal or a metalloid capable of alloying with lithium. [27] According to an eighth embodiment, according to any one of the first to seventh embodiments, [28] The non-carbon-based negative active material is a metal or metalloid selected from the group consisting of Si, Sn, In, Pb, Ga, Ge, Al, Bi, Sb, Ag, Mg, Zn, Pt, Ti, and combinations thereof, an oxide thereof, The carbon complex, the carbon complex of the metal or metalloid oxide, or a mixture thereof may be included. [29] According to a ninth embodiment, according to any one of the first to eighth embodiments, [30] The non-carbon-based negative active material may include Si, SiOx (0 [85] A mixture of artificial graphite as a carbon-based active material, a binder polymer (SBR (styrene-butadiene rubber) and CMC (carboxymethyl cellulose)), and carbon black as a conductive material in a weight ratio of 95:3.5:1.5, and water as a dispersion medium. A slurry for the active material layer was prepared by mixing the weight ratio of the dispersion medium and the mixture at 1:2. At this time, the weight ratio of SBR (styrene-butadiene rubber) and CMC (carboxymethyl cellulose) was 2.3:1.2. [86] Using a slot die, the slurry for the active material layer was coated on one surface of a copper (Cu) thin film, which is a negative current collector, having a thickness of 10 μm, and dried at 130° C. under vacuum for 1 hour to form an active material layer on the copper thin film. . [87] The active material layer thus formed was rolled by a roll pressing method to prepare a negative electrode having a single-layered active material layer having a thickness of 80 μm. At this time, the loading amount based on the dry weight of the anode active material layer was 17 mg/cm 2 . [88] [89] Li(Ni 0.8 Mn 0.1 Co 0.1 )O 2 (NCM-811) as a cathode active material, carbon black as a conductive material, and polyvinylidene fluoride (PVdF) as a binder in a weight ratio of 96:2:2 as a solvent Phosphorus was added to N-methylpyrrolidone (NMP) to prepare a cathode active material slurry. The slurry was coated on one surface of an aluminum current collector having a thickness of 15 μm, and drying and rolling were performed under the same conditions as the negative electrode to prepare a positive electrode. At this time, the loading amount based on the dry weight of the positive electrode active material layer was 20 mg/cm 2 . [90] [91] In an organic solvent mixed with ethylene carbonate (EC), propylene carbonate (PC) and ethylmethyl carbonate (EMC) in a composition of 3:1:6 (volume ratio), LiPF 6 was dissolved to a concentration of 1.0M to obtain a non-aqueous electrolyte solution. prepared. [92] After interposing the polyolefin separator between the positive electrode and the negative electrode prepared above, the electrolyte was injected to prepare a lithium secondary battery. [93] [94] Preparation 2 [95] [96] A mixture of artificial graphite as a carbon-based active material, a binder polymer (SBR (styrene-butadiene rubber) and CMC (carboxymethyl cellulose)), and carbon black as a conductive material in a weight ratio of 95:3.5:1.5, and water as a dispersion medium. A slurry for the first active material layer was prepared by mixing the weight ratio of the dispersion medium to 1:2. At this time, the weight ratio of SBR (styrene-butadiene rubber) and CMC (carboxymethyl cellulose) was 2.3:1.2. [97] Instead of artificial graphite, SiO (silicon oxide) having a Coulombic efficiency of 80% or more when charged and discharged with 0.1C, a non-carbon-based active material, is used, and the SiO content is 5% by weight based on the total weight of artificial graphite and SiO A slurry for the second active material layer was prepared in the same manner as the slurry for the first active material layer, except that [98] Using a double slot die, the slurry for the first active material layer is coated on one surface of a copper (Cu) thin film that is a negative current collector having a thickness of 10 μm, and then the slurry for the second active material layer is applied on the slurry for the first active material layer. Coating, and drying for 1 hour under vacuum at 130 ℃, to form a first active material layer and a second active material layer on the copper thin film. [99] The first active material layer and the second active material layer thus formed were simultaneously rolled by a roll pressing method to prepare an anode having a double-layered active material layer having a thickness of 80 μm. Based on the dry weight of the anode active material layer, the loading amount was 17 mg/cm 2 . [100] [101] A positive electrode was prepared in the same manner as in Preparation Example 1. [102] [103] A non-aqueous electrolyte was prepared in the same manner as in Preparation Example 1. [104] After interposing the polyolefin separator between the positive electrode and the negative electrode prepared above, the electrolyte was injected to prepare a lithium secondary battery. [105] [106] Preparation 3 [107] [108] A mixture of artificial graphite as a carbon-based active material, a binder polymer (SBR (styrene-butadiene rubber) and CMC (carboxymethyl cellulose)), and carbon black as a conductive material in a weight ratio of 95:3.5:1.5, and water as a dispersion medium. A slurry for the first active material layer was prepared by mixing the weight ratio of the dispersion medium to 1:2. At this time, the weight ratio of SBR (styrene-butadiene rubber) and CMC (carboxymethyl cellulose) was 2.3:1.2. [109] Instead of artificial graphite, SiO (silicon oxide) with a Coulombic efficiency of 80% or more when charged and discharged with 0.1C, a non-carbon-based active material, is used, and the SiO content is 15% by weight relative to the total weight of artificial graphite and SiO A slurry for the second active material layer was prepared in the same manner as the slurry for the first active material layer, except that [110] Using a double slot die, the slurry for the first active material layer is coated on one surface of a copper (Cu) thin film that is a negative current collector having a thickness of 10 μm, and then the slurry for the second active material layer is applied on the slurry for the first active material layer. Coating, and drying for 1 hour under vacuum at 130 ℃, to form a first active material layer and a second active material layer on the copper thin film. [111] The first active material layer and the second active material layer thus formed were simultaneously rolled by a roll pressing method to prepare an anode having a double-layered active material layer having a thickness of 80 μm. Based on the dry weight of the anode active material layer, the loading amount was 17 mg/cm 2 . [112] [113] A positive electrode was prepared in the same manner as in Preparation Example 1. [114] [115] A non-aqueous electrolyte was prepared in the same manner as in Preparation Example 1. [116] After interposing the polyolefin separator between the positive electrode and the negative electrode prepared above, the electrolyte was injected to prepare a lithium secondary battery. [117] [118] Preparation 4 [119] [120] SiO (silicon oxide), binder polymer (SBR (styrene-butadiene rubber) and CMC (carboxymethyl cellulose)) with a Coulombic efficiency of 80% or more when charged and discharged at 0.1C, and carbon black as a conductive material in a weight ratio of 95 A slurry for an active material layer was prepared by mixing the mixture at a ratio of :3.5:1.5 and water as a dispersion medium, and mixing the mixture and dispersion medium in a weight ratio of 1:2. At this time, the weight ratio of SBR (styrene-butadiene rubber) and CMC (carboxymethyl cellulose) was 2.3:1.2. [121] Using a slot die, the slurry for the active material layer was coated on one surface of a copper (Cu) thin film, which is a negative current collector, having a thickness of 10 μm, and dried at 130° C. under vacuum for 1 hour to form an active material layer on the copper thin film. . [122] The active material layer thus formed was simultaneously rolled by a roll pressing method to prepare an anode having a SiO single-layer structure having an active material layer having a thickness of 80 μm. Based on the dry weight of the anode active material layer, the loading amount was 17 mg/cm 2 . [123] [124] A coin-type half secondary battery was manufactured in the same manner as in Preparation Example 4, except that the prepared negative electrode was used. [125] [126] Preparation 5 [127] [128] An anode having a single layer structure of artificial graphite was prepared in the same manner as in Preparation Example 1. [129] [130] A 0.3 mm lithium foil is used as the opposite electrode, a polypropylene porous film (30㎛, Celgard) is used as the separator, and the electrolyte is ethylene carbonate (EC) and ethylmethyl carbonate (EMC) 3:7 (volume ratio). ) was prepared by dissolving LiPF 6 in an organic solvent mixed with a composition of 1.0M to a concentration of 1.0M, and dissolving fluoroethylene carbonate (FEC) to 2% by weight. A so-called 2032-type coin-type half secondary battery having a thickness of 2 mm and a diameter of 32 mm was manufactured by injecting the electrolyte solution after interposing a separator between the negative electrode and the opposite electrode prepared above. [131] [132] Preparation 6 [133] [134] In the same manner as in Preparation Example 2, an artificial graphite layer/SiO layer anode having a dual-layer structure (SiO containing 5% by weight relative to the total active material) was prepared. [135] [136] A coin-type half secondary battery was manufactured in the same manner as in Preparation Example 4, except that the prepared negative electrode was used. [137] [138] Preparation 7 [139] [140] In the same manner as in Preparation Example 2, an artificial graphite layer/SiO layer anode having a dual-layer structure (SiO containing 5% by weight relative to the total active material) was prepared. [141] [142] Li(Ni 0.8 Mn 0.1 Co 0.1 )O 2 (NCM-811) as a cathode active material, carbon black as a conductive material, and polyvinylidene fluoride (PVdF) as a binder in a weight ratio of 96:2:2 as a solvent Phosphorus was added to N-methylpyrrolidone (NMP) to prepare a cathode active material slurry. The slurry was coated on one surface of an aluminum current collector having a thickness of 15 μm, and drying and rolling were performed under the same conditions as the negative electrode to prepare a positive electrode. At this time, the loading amount based on the dry weight of the positive electrode active material layer was 20 mg/cm 2 . [143] [144] In an organic solvent mixed with ethylene carbonate (EC), propylene carbonate (PC) and ethylmethyl carbonate (EMC) in a composition of 3:1:6 (volume ratio), LiPF 6 was dissolved to a concentration of 1.0M to obtain a non-aqueous electrolyte solution. prepared. [145] Thereafter, a three-electrode secondary battery was manufactured so that the potential of a desired electrode could be measured while maintaining the configuration of the battery by inserting and installing the reference electrode probe between the positive electrode and the separator inside the pouch. At this time, the reference electrode probe was manufactured by using LTO (lithium titanium compound) as a reference electrode material and applying LTO to the lower end of the reference electrode probe. [146] (For reference, the material of the needle-shaped member of the reference electrode probe is not particularly limited as long as it has no reactivity with the electrolyte or has very low conductivity. The needle-shaped member itself may be made of a material that can be used as the reference electrode, Therefore, it may be manufactured by coating a material that can be used as a reference electrode on the lower end of the reference electrode probe.) [147] [148] Experimental example [149] Experimental Example 1 [150] The three-electrode secondary battery (full cell) prepared in Preparation Example 7 was charged and discharged at 0.1 C to confirm the change in capacity versus voltage, which is shown in FIG. 2A. In FIG. 2a, the profiles of the anode and the cathode were separated in a manner that reads the relative potential using 1.53V, which is the reference potential of LTO, which is the needle-like member of the reference electrode, for the full cell potential, respectively, and is shown in FIGS. 2b and 2c. . [151] [152] Experimental Example 2 [153] The three-electrode secondary battery (full cell) prepared in Preparation Example 7 was charged and discharged at 0.33C to confirm the change in capacity versus voltage, and this is shown in FIG. 3A . In FIG. 3a, the profiles of the anode and the cathode were separated in a manner that reads the relative potential using the reference potential of 1.53V, which is the reference potential of the LTO, which is the needle member of the reference electrode, for the full cell potential, respectively, and is shown in FIGS. 3b and 3c. . [154] Referring to FIGS. 2B and 3B , it was difficult to distinguish and grasp the respective behaviors of artificial graphite and SiO in the negative electrode of the artificial graphite layer/SiO layer two-layer structure (SiO contains 5% by weight relative to the total active material). In particular, in the case of applying a high C-rate as shown in FIG. 3B, it was more difficult to distinguish. [155] That is, in the conventional charge-discharge-voltage profile graph as shown in FIGS. 2A to 2C and 3A to 3C, even when the negative electrode and the positive electrode are separated and examined, it was not possible to confirm how much SiO and graphite contribute to the total capacity of the battery in the hybrid negative electrode. [156] [157] Experimental Example 3 [158] The coin-type half secondary battery of the SiO single-layer negative electrode prepared in Preparation Example 4, the coin-type half secondary battery of the artificial graphite single-layer negative electrode prepared in Preparation Example 5, and the artificial graphite layer/SiO layer dual-layer structure prepared in Preparation Example 6 In the coin-type half secondary battery of the negative electrode (SiO contains 5% by weight relative to the total active material), the normal capacity (%) for each negative electrode and the profile according to the voltage change are shown in FIG. 4 . [159] Referring to FIG. 4 , it can be seen that it is difficult to clearly separate and analyze the profiles of SiO and graphite in the profile of the hybrid negative electrode of Preparation Example 6. [160] [161] Experimental Example 4 [162] Using a transmission x-ray diffractometer (manufacturer: Bruker, product name: D8 Advance) shown in FIG. 5, the secondary batteries of Preparation Examples 1 to 3 were subjected to the same conditions as the cycle test of 0.33 CC/CV While charging and discharging under the charging and discharging conditions of 0.33 CC, the (002) lattice interface peak (2θ = 7.5 ~ 11 (Ag λ = 0.56)) of the artificial graphite contained in the negative electrode of each secondary battery was tracked and scanned. The (002) lattice peak of the artificial graphite contained in the negative electrodes of Preparation Examples 1 to 3 obtained by scanning in this way was fitted based on Bragg's Law to determine the lattice d-spacing of the artificial graphite. Calculated. [163] 6 is representative of the (002) lattice interface peak (2θ = 7.5-11 (Ag λ) of artificial graphite by an X-ray diffraction analyzer for the negative electrode (SiO contains 5 wt% of the total active material) of the secondary battery of Preparation Example 2 = 0.56)) and the calculated lattice d-spacing. [164] 7A to 7C are graphs each showing a change in lattice spacing of artificial graphite included in each negative electrode according to the above-described capacity change during charging and discharging for the secondary batteries of Preparation Examples 1 to 3; [165] Referring to FIG. 7A , as in the case of the negative electrode of Preparation Example 1, when the negative active material is all made of graphite, it can be seen that the lattice spacing of graphite is constantly increased during charging, and then decreased along the same path during discharging. Since there is no obstruction when lithium ions are inserted and desorbed between graphite lattices, the lattice spacing increases and then decreases as the capacity increases. [166] According to FIG. 7b, in the case of Preparation Example 2 using a negative electrode containing 5 wt% of SiO with respect to the total amount of the total negative electrode active material of artificial graphite and SiO, the increase curve of the lattice interval during charging and the decrease curve of the lattice interval during discharge coincide You can see that the path is different without it. [167] In the discharge graph of FIG. 7B , an inflection point occurs at the point where the discharge capacity is about 25 mAh as a boundary. In the portion where the capacity is greater than the capacity at the inflection point, the change in the graphite lattice is very large according to the change in capacity, and the discharge capacity at this time is due to lithium ions desorbed from the graphite. [168] On the other hand, it can be seen that the graphite lattice spacing according to the change in capacity is relatively less decreased in the portion having a smaller capacity than the capacity at the inflection point, that is, in the range of about 25 to 0 mAh of the discharge capacity. This discharge capacity section corresponds to a section in which lithium ions are not desorbed from graphite, but a process in which lithium ions inserted into SiO are desorbed is reflected. Therefore, the capacity contributed by SiO in the secondary battery applied to this charge/discharge can be 15.6% (= 25/160 X 100) when calculated as 25mAh compared to the total discharge capacity of 160mAh. It can be seen that this is almost consistent with the theoretical value contributing about 15% of the total capacity when SiO is included in 5 wt% in the total negative active material of graphite and SiO. [169] This is because lithium ions are inserted into both graphite and SiO during charging, and then, during discharging, lithium ions inserted from graphite are desorbed from the portion where the lithium ions are larger than the inflection point capacity, and then inserted into the SiO from the portion smaller than the inflection point capacity. As the lithium ions are desorbed, the tendency to decrease the lattice spacing of graphite is remarkably reduced despite the change in capacity. [170] 7c is a graph showing the change in the lattice spacing of graphite according to the charging capacity of the secondary battery of Preparation Example 3 using a negative electrode containing 15% by weight of SiO with respect to the total amount of the total negative electrode active material of artificial graphite and SiO. [171] An inflection point occurs in the graph curve at the time of discharging of FIG. 7C with a discharge capacity of about 24 mAh as a boundary. In the portion where the capacity is larger than the capacity at the inflection point, there is a change in the graphite lattice spacing and at the same time the capacity changes. The discharge capacity at this time is due to lithium ions desorbed from the graphite. [172] On the other hand, in the portion where the capacity is smaller than the inflection point, that is, in the range of the discharge capacity of about 24 to 0 mAh, the capacity is changed even though the graphite lattice spacing is not changed or is very small. During this discharge, lithium ions are not desorbed from graphite, but lithium ions inserted into SiO are desorbed. Therefore, it can be seen that this discharge capacity is expressed in the process of desorption of lithium ions inserted into SiO. Based on this, the capacity contributed by SiO in the secondary battery applied to this charge/discharge is 43.6% (= 24/55 X 100) when calculated as 24mAh compared to the total discharge capacity of 55mAh. It can be seen that this is almost consistent with the theoretical value contributing about 45% of the total capacity when SiO is included in 15 wt% in the total negative active material of graphite and SiO. [173] 8 is a graph showing the change in the lattice spacing of artificial graphite included in each negative electrode according to the normal capacity change during the charging and discharging described above for the secondary batteries of Preparation Examples 1 to 3; [174] In the charging capacity of the secondary battery of Preparation Example 3 having a carbon-based hybrid negative electrode comprising 85 wt% of graphite and 15 wt% of SiO, 57-100%, that is, 43%, which is the flat section of the second half, is the capacity value expressed in SiO will indicate It can be seen that this is consistent with the value calculated in FIG. 7C . [175] In the charging capacity of the secondary battery of Preparation Example 2 having a carbon-based hybrid negative electrode comprising 85 wt% of graphite and 5 wt% of SiO, 85-100% of the flat section of the second half, that is, 15% of the capacity expressed in SiO represents a value. It can be seen that this is consistent with the value calculated in FIG. 7B . WE CLAIMS Preparing a secondary battery having a carbon-based hybrid negative electrode including a carbon-based negative active material and a non-carbon-based negative active material; By measuring the lattice spacing (d-spacing) of the carbon-based negative active material in the carbon-based hybrid negative electrode during charging and discharging of the secondary battery using an X-ray diffractometer, charge and discharge capacity (X axis) plotting the change of the grid spacing value versus the graph; and quantifying the capacity contributed by the carbon-based negative active material and the non-carbon-based negative active material in the total discharge capacity of the secondary battery by confirming the inflection point of the slope of the graph during the discharge in the plotted graph; Quantitative analysis method of a carbon-based hybrid negative electrode, characterized. [Claim 2] The carbon-based hybrid negative electrode according to claim 1, wherein the discharge capacity after the inflection point corresponds to a portion of the capacity contributed by the non-carbon-based negative active material, and the discharge capacity before the inflection point corresponds to the portion of the capacity contributed by the carbon-based negative active material. of quantitative analysis methods. [Claim 3] The carbon-based hybrid negative electrode according to claim 1, wherein the capacity contributed by the non-carbon-based negative active material in the carbon-based hybrid negative electrode is quantified by calculating the ratio of the discharge capacity value after the inflection point to the maximum capacity of the graph. of quantitative analysis methods. [Claim 4] The method of claim 1, wherein when the secondary battery is charged and discharged a plurality of times and the capacity characteristic is deteriorated, the charge/discharge is progressed a plurality of times compared to the position of the inflection point of the slope of the graph at the time of initial charging and discharging, and after the deterioration is Carbon-based hybrid negative electrode, characterized in that it can be determined which of the carbon-based negative active material and the non-carbon-based negative active material is the cause of the deterioration of the secondary battery through the change in the position of the inflection point of the slope of the graph during charging and discharging of quantitative analysis methods. [Claim 5] The capacity of the portion from the inflection point to the maximum capacity based on the inflection point as a result of analyzing the position of the inflection point of the slope of the graph during charging and discharging after degradation compared to the position of the inflection point of the slope of the graph during the initial charge/discharge. Quantitative analysis of the carbon-based hybrid negative electrode, characterized in that it can be determined that the carbon-based negative electrode active material is degraded, and if the capacity of the portion is decreased from the inflection point to the capacity 0, the non-carbon-based negative electrode active material is degraded Way. [Claim 6] The method according to claim 1, wherein the carbon-based negative active material comprises natural graphite, artificial graphite, soft carbon, hard carbon, pitch carbide, calcined coke, graphene, carbon nanotube, or two or more thereof. A quantitative analysis method for a carbon-based hybrid anode. [Claim 7] The method of claim 1, wherein the non-carbon-based negative active material includes a metal or a metalloid capable of alloying with lithium. [Claim 8] According to claim 1, wherein the non-carbon-based negative active material is a metal selected from the group consisting of Si, Sn, In, Pb, Ga, Ge, Al, Bi, Sb, Ag, Mg, Zn, Pt, Ti, and combinations thereof; A quantitative analysis method of a carbon-based hybrid anode, comprising a metalloid, an oxide thereof, a carbon composite thereof, a carbon composite of the metal or metalloid oxide, or a mixture thereof. [Claim 9] The method of claim 1, wherein the non-carbon-based negative active material includes Si, SiO x (0