Specification Title of invention: negative electrode slurry composition, negative electrode and secondary battery manufactured using the same Technical field [One] [Mutual citation with related application] [2] This application claims the benefit of priority based on Korean Patent Application No. 10-2018-0025364 filed on March 2, 2018, and all contents disclosed in the Korean Patent Application Document are included as part of this specification. [3] [4] [Technical field] [5] The present invention relates to a negative electrode slurry composition and a negative electrode and a secondary battery manufactured using the same, and more specifically, a negative electrode slurry composition capable of realizing excellent electrode adhesion in a high-energy electrode, and a negative electrode and a secondary battery manufactured using the same. About. [6] Background [7] A secondary battery is a battery that can be used repeatedly through a discharge process in which chemical energy is converted into electrical energy and a charging process in the reverse direction. In general, a secondary battery is composed of a positive electrode, a negative electrode, an electrolyte, and a separator. For the negative electrode, a negative electrode slurry is prepared by mixing a negative electrode active material that inserts and desorbs lithium ions from the positive electrode, such as a conductive material, a binder, a dispersant, and a thickener, and then the negative electrode slurry is applied to an electrode current collector such as copper foil, and dried. It is manufactured through a post-rolling process. [8] [9] In the case of a conventional negative electrode slurry composition, carboxymethyl cellulose (CMC) was mainly used as a dispersant and thickener in order to adjust the viscosity and dispersibility of the slurry composition. However, since CMC has brittle properties, when used for a high-energy electrode having a high active material content, there is a problem that the electrode adhesion may decrease and the electrode may be detached during electrode slitting. [10] [11] Meanwhile, a lithium secondary battery is mainly used as a secondary battery at present, but the lithium reserves are limited, and development of new secondary batteries that can replace the lithium secondary battery is being attempted. Specifically, development of sodium secondary batteries and manganese secondary batteries using sodium or manganese as an alternative to lithium secondary batteries have been made. However, when an electrode material used in an existing lithium secondary battery is applied as it is to a sodium secondary battery or a manganese secondary battery, there are problems such as insufficient capacity expression or rapid capacity degradation and characteristic degradation. [12] [13] Therefore, it is possible to reduce the occurrence of defects in post-processability such as electrode slitting while securing excellent stability in a negative electrode slurry having a high active material content, and is applied to a new material battery using sodium and/or manganese to realize excellent electrode characteristics. Development of electrode materials is required. [14] [15] [16] (Patent Document 1) Korean Patent Publication No. 2014-0103376 (Published: 2014.08.27) [17] Detailed description of the invention Technical challenge [18] The present invention is to solve the above problems, and to provide a negative electrode slurry composition capable of implementing excellent electrode adhesion in a high energy electrode. [19] In addition, the present invention is to provide a negative electrode slurry composition that can be applied not only to a lithium secondary battery, but also to a secondary battery using sodium or manganese. [20] In addition, the present invention is to provide a negative electrode prepared by using the negative electrode slurry composition and a secondary battery including the same. [21] Means of solving the task [22] In one aspect, the present invention is a negative active material; A hydrophobically modified alkali-swellable emulsion; And it provides a negative electrode slurry composition comprising a solvent. [23] In this case, the alkali-swellable emulsion may be included in an amount of 0.1 to 5 parts by weight, preferably 0.1 to 3 parts by weight, more preferably 1 to 3 parts by weight, based on 100 parts by weight of the total solid content in the slurry composition. [24] Meanwhile, the alkali-swellable emulsion may be obtained by dispersing an acrylic polymer including a hydrophobic functional group and an acid functional group in water, and the acrylic polymer may have a hydrophobic functional group bonded to a polymer electrolyte main chain as a pendant group. [25] Meanwhile, the hydrophobic functional group may be an alkyl group having 5 to 20 carbon atoms. [26] [27] In another aspect, the present invention includes a current collector and a negative electrode active material layer formed on at least one surface of the current collector, wherein the negative active material layer is formed of the negative electrode slurry composition according to the present invention, and a negative electrode including the same It provides a secondary battery. [28] Effects of the Invention [29] The negative electrode slurry composition according to the present invention containing an alkali-swellable emulsion modified with a hydrophobic functional group has excellent slurry stability, and when an electrode is manufactured using it, the electrode adhesion is high, and the electrode detachment phenomenon in a post process such as electrode slitting The occurrence of this can be effectively suppressed, and the occurrence of defects can be reduced. [30] Best mode for carrying out the invention [31] The terms or words used in the specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventor may appropriately define the concept of terms in order to describe his own invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of ​​the present invention based on the principle that there is. [32] The terms used in the present specification are only used to describe exemplary embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. [33] In the present specification, terms such as "comprise", "include", or "have" are intended to designate the presence of implemented features, numbers, steps, elements, or a combination thereof, and one or more other features or It is to be understood that the possibility of the presence or addition of numbers, steps, components, or combinations thereof is not preliminarily excluded. [34] In this specification, "%" means% by weight unless otherwise indicated. [35] [36] Hereinafter, the present invention will be described in detail. [37] [38] Negative electrode slurry composition [39] First, the negative electrode slurry composition according to the present invention will be described. [40] The negative electrode slurry composition according to the present invention includes (1) a negative electrode active material, (2) a hydrophobically modified alkali-swellable emulsion modified with a hydrophobic functional group, and (3) a solvent. [41] [42] The inventors of the present invention use an alkali-swellable emulsion modified with a hydrophobic functional group instead of the dispersant and/or thickener mainly used in the conventional negative electrode slurry composition, so that even when the active material content in the slurry composition is high, the stability of the slurry composition can only be secured. Rather, compared to the case of forming an electrode using a slurry composition using a conventional dispersant and/or a thickener such as CMC, it was found that an electrode having high electrode adhesion and less defects such as electrode detachment can be manufactured. Was completed. [43] [44] Hereinafter, each component of the negative electrode slurry composition according to the present invention will be described in detail. [45] [46] (1) negative active material [47] As the negative active material, a material capable of occluding and releasing lithium, sodium, and/or manganese ions may be used, and the type is not particularly limited. For example, as the negative active material, carbonaceous materials such as natural graphite, artificial graphite, hard carbon, and soft carbon; Si, Ge, Sn, Pb, In, Zn, Ca, Sr, Ba, Ru, Rh, Ir, Pd, Pt, Ag, Au, Cd, Hg, Ga, Tl, C, N, Sb, Bi, O, A single element of an element alloying with M (the M is lithium, sodium or manganese) such as S, Se, Te, and Cl, their alloys, and oxides containing these elements (SiO x (0 [142] 97% by weight of Li[Ni 0.8 Co 0.1 Mn 0.1 ]O 2 as a positive electrode active material, 1% by weight of carbon black as a conductive material, and 2% by weight of PVdF as a binder were added to N-methyl-2 pyrrolidone (NMP) as a solvent. A positive electrode mixture slurry was prepared. The positive electrode mixture slurry was coated on an aluminum (Al) thin film of a positive electrode current collector having a thickness of about 20 μm, dried, and then roll pressed to prepare a positive electrode. [143] [144] [145] After interposing a polypropylene separator between the positive electrode prepared above and the negative electrode prepared in Experimental Example 2, ethylene carbonate (EC), propylene carbonate (PC), and ethylmethyl carbonate (EMC) were added in a volume ratio of 20:10:70. 1M LiPF 6 was dissolved in the mixed solvent to prepare an electrolyte, and this was injected to prepare a lithium secondary battery. [146] [147] The prepared secondary battery was subjected to two charge/discharge tests with a charge/discharge current density of 0.2 C, a charge end voltage of 4.5 V, and a discharge end voltage of 2.5 V. Subsequently, a charge/discharge test was conducted 48 times in which the charge/discharge current density was 1 C, the charge end voltage was 4.5 V, and the discharge end voltage was 2.5 V. All charging was performed by constant current/constant voltage, and the end current of constant voltage charging was 0.05 C. After completing the test for a total of 50 cycles, the capacity retention rate (50 times/1 time) was calculated by dividing the charging capacity after 50 cycles by the charging capacity of the first cycle. [148] [149] [Table 1] Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Cathode slurry viscosity (cps) 2500 5500 7500 4400 7000 10900 500 1600 Electrode adhesion (gf/inch) 52.3 49.0 32.3 28.2 25.7 27.1 31.5 26.5 Electrode detachment amount (g) 0.5 0.7 0.6 4.7 3.9 8.8 4.5 5.7 50 cycle capacity retention rate (%) 95.4 93.7 90.6 84.7 73.9 68.8 53.9 55.2 [150] As shown in Table 1, the negative electrode slurry compositions of Examples 1 to 3 using an alkaline swellable emulsion modified with a hydrophobic functional group showed a low viscosity of 2500 to 7500 cps, indicating excellent stability of the slurry composition. . In contrast, it can be seen that the negative electrode slurry compositions of Comparative Examples 1 to 3 using the same amount of CMC as in Example 1 have a higher viscosity than that of the negative electrode slurry composition of Example 1. In addition, in the case of a negative electrode prepared using the negative electrode slurry composition of Examples 1 to 3, the electrode adhesion was higher and the amount of electrode detachment was lower than that of the negative electrode prepared using the negative electrode slurry composition of Comparative Example. It can be seen that it exhibits superior lifespan characteristics compared to those. [151] [152] On the other hand, in the case of Comparative Examples 4 and 5 using polyacrylic acid that does not contain a hydrophobic functional group, the viscosity of the slurry composition was low, but the electrode adhesion was low and the amount of electrode detachment was large, so that the lifespan characteristics were markedly deteriorated. Claims [Claim 1] Negative active material; A hydrophobically modified alkali-swellable emulsion; And a negative electrode slurry composition comprising a solvent. [Claim 2] The negative electrode slurry composition of claim 1, wherein the alkali-swellable emulsion is contained in an amount of 0.1 to 5 parts by weight based on 100 parts by weight of the total solid content in the negative electrode slurry composition. [Claim 3] The negative electrode slurry composition of claim 1, wherein the alkali-swellable emulsion is an acrylic polymer containing a hydrophobic functional group and an acid functional group dispersed in water. [Claim 4] The negative electrode slurry composition of claim 3, wherein the acrylic polymer has a hydrophobic functional group bonded to the main chain of the polymer electrolyte through a pendant group. [Claim 5] The negative electrode slurry composition of claim 1, wherein the hydrophobic functional group is an alkyl group having 5 to 20 carbon atoms. [Claim 6] The negative electrode slurry composition of claim 1, wherein the solvent comprises water. [Claim 7] The negative electrode slurry composition of claim 1, wherein the negative electrode slurry composition further comprises at least one of a binder, a conductive material, and a filler. [Claim 8] According to claim 1, 80 to 99.7 parts by weight of a negative active material based on 100 parts by weight of the total solid content in the negative electrode slurry composition; An alkali-swellable emulsion modified with 0.1 to 5 parts by weight of a hydrophobic functional group; 0.1 to 10 parts by weight of a binder; And 0.1 to 5 parts by weight of a negative electrode slurry composition comprising a conductive material. [Claim 9] A negative electrode comprising a current collector and a negative active material layer formed on at least one surface of the current collector, wherein the negative active material layer is formed of the negative electrode slurry composition of any one of claims 1 to 8. [Claim 10] A secondary battery comprising the negative electrode of claim 9.