CURRENT COLLECTOR FOR LITHIUM-ION SECONDARY CELL, MANUFACTURING METHOD THEREOF AND NONAQUEOUS ELECTROLYTE SECONDARY CELL

摘要

A lithium ion secondary cell current collector having a novel protective layer, and a nonaqueous electrolyte secondary cell that is highly stable during internal short-circuiting are provided. This current collector for a lithium ion secondary cell is characterized by comprising a current collector main body and a protective layer arranged on the surface of the current collector main body, and is characterized in that the protective layer contains antimony-doped tin oxides and an acrylic resin. The nonaqueous electrolyte secondary cell is characterized by comprising a positive electrode having an aluminum positive electrode current collector, a reaction suppression layer which is arranged on the surface of the positive electrode current collector and which suppresses reactions between the positive electrode current collector and a positive electrode active substance, and a positive electrode active substance layer which is arranged on the surface of the reaction suppression layer and which comprises a positive electrode active substance, and a negative electrode comprising a negative electrode active substance, and is characterized in that the reaction suppression layer comprises prescribed conductive particles and a reaction suppression layer binder.