Title of Invention: An electrode current collector including a heat-pressure conversion layer between two or more metal foils, an electrode including the same, and a lithium secondary battery technical field [One] Cross-Citation with Related Application(s) [2] This application claims the benefit of priority based on Korean Patent Application No. 10-2019-0115356 dated September 19, 2019, and all contents disclosed in the literature of the Korean patent application are incorporated as a part of this specification. [3] The present invention relates to an electrode current collector including a heat-pressure conversion layer between two or more metal foils, an electrode including the same, and a lithium secondary battery. background [4] Recently, as technology development and demand for mobile devices increase, the demand for rechargeable batteries capable of being charged and discharged as an energy source is rapidly increasing. In addition, the secondary battery is an electric vehicle (EV), a hybrid electric vehicle (HEV), a plug-in hybrid electric vehicle that has been proposed as a solution to air pollution such as conventional gasoline and diesel vehicles using fossil fuels. It is also attracting attention as a power source such as (Plug-in HEV). [5] Accordingly, electric vehicles (EVs) that can operate only with secondary batteries, hybrid electric vehicles (HEVs) that use a secondary battery and an existing engine together have been developed, and some have been commercialized. As a secondary battery as a power source for EVs and HEVs, nickel-metal hydride (Ni-MH) secondary batteries are mainly used, but recently, research using lithium secondary batteries with high energy density, high discharge voltage and output stability has been actively conducted. and some have been commercialized. [6] In such a lithium secondary battery, an electrode including an electrode active material is coated on an electrode current collector, dried, and rolled to manufacture an electrode, and an electrode assembly with a separator interposed between these electrodes is embedded in a battery case together with an electrolyte is manufactured by [7] Here, the electrode is a positive electrode or a negative electrode, and as the electrode active material, a carbon material is mainly used as the negative electrode active material, and the use of lithium metal, a sulfur compound, etc. is also considered. In addition, lithium-containing cobalt oxide (LiCoO 2) is mainly used as a positive electrode active material, and in addition, lithium-containing manganese oxide such as LiMnO 2 having a layered crystal structure and LiMn 2O 4 having a spinel crystal structure, and lithium-containing nickel oxide (LiNiO 2 ) ) is also being considered. [8] Recently, high energy density, long life durability, etc. are important issues. As a lithium nickel-based oxide exhibiting excellent performance in terms of such performance, lithium nickel-cobalt-manganese oxide is used in a large amount. [9] However, a lithium secondary battery including such an active material has a problem in that fast charging performance is insufficient. [10] On the other hand, when the charging current density is increased in order to improve the fast charging performance, there is a problem that lithium plating occurs on the negative electrode, and there is a limit in increasing the charging current density. [11] Therefore, there is a high need for a technology capable of improving the fast charging performance of a lithium secondary battery by solving the above problem. DETAILED DESCRIPTION OF THE INVENTION technical challenge [12] An object of the present invention is to solve the problems of the prior art as described above and the technical problems that have been requested from the past. [13] Specifically, it is an object of the present invention to provide an electrode current collector capable of improving the rapid charging performance of a secondary battery by generating heat by operation of the secondary battery to increase the temperature of the battery. means of solving the problem [14] According to the present invention for achieving this object, [15] As an electrode current collector for a lithium secondary battery, [16] The electrode current collector includes two or more metal foil layers, and a heat-pressure conversion layer positioned between the two or more metal foil layers, [17] The heat-pressure conversion layer is provided with an electrode current collector including a heat-pressure exchange ceramic material, a conductive material, and an adhesive. [18] In one specific example, the heat-pressure conversion layer may be interposed between two or more flat metal foil layers. [19] For example, the electrode current collector may include a lower current collector, a first heat-pressure conversion layer disposed on the lower current collector, and an intermediate current collector disposed on the first heat-pressure conversion layer, and on the intermediate current collector. A second heat-to-pressure conversion layer positioned in the second heat-can be configured to include an upper current collector positioned on the pressure conversion layer. [20] In another specific example, at least one of the two or more metal foil layers has an uneven portion including a convex portion and a concave portion on the surface thereof, and the heat-pressure converting layer is formed in the concave portion. can [21] In this case, the convex portion and the concave portion may be formed at regular intervals. [22] Meanwhile, the heat-pressure exchange ceramic material may be trititanium pentoxide, and phase transition between lambda trititanium pentoxide and beta trititanium pentoxide may be reversible by heat and pressure. [23] Specifically, the heat-pressure exchange ceramic material may undergo a phase change from lambda trititanium pentoxide to beta trititanium pentoxide by pressurization, and a phase change from beta trititanium pentoxide to lambda trititanium pentoxide by heat absorption. [24] The heat-pressure conversion layer may have a thickness of 5 to 50 μm. [25] The two or more metal foil layers may be made of the same metal. For example, the two or more metal foil layers are made of Al metal, the electrode current collector may be a positive electrode current collector, the two or more metal foil layers are made of Cu metal, and the electrode current collector is a negative electrode It may be a current collector. [26] The two or more metal foils may each have a thickness of 10 to 100 μm. [27] Meanwhile, according to the present invention, there is also provided an electrode in which an electrode mixture including an electrode active material, a binder, and a conductive material is formed on at least one surface of the electrode current collector. [28] Here, the electrode active material, the electrode active material, may include a lithium transition metal oxide represented by the following formula (1). [29] Li aNi 1-x-yMn xCo yO 2-bA b (1) [30] In the above formula, [31] A is an oxygen-substituted halogen, [32] 1.00≤a≤1.05, 0.1≤x≤0.6, 0.1≤y≤0.6, 0≤b≤0.1. [33] In addition, the electrode active material is a Si/C composite, SiO x (0