| abstract |
In one aspect, the provision of a positive electrode for a lithium ion secondary battery obtained by an aqueous process using an aqueous binder having a charge/discharge characteristic equivalent to that of a positive electrode for a lithium ion secondary battery manufactured by a conventional non-aqueous process. In one aspect, the present disclosure is a positive electrode for a lithium ion secondary battery comprising a current collector and a mixture layer formed on the current collector, wherein the mixture layer is a structural unit derived from a compound represented by the following formula (I) (A ), and a compound represented by the following formula (II), a compound represented by the following formula (III), and a polymer particle containing a structural unit (B) derived from at least one compound selected from unsaturated dibasic acids as a binder. And, the content of the structural unit (A) in all the structural units of the polymer particles is 50% by mass or more and 99.9% by mass or less, and the content of the structural unit (B) in all the structural units of the polymer particles is 0.1% by mass or more. It relates to a positive electrode for lithium ion secondary batteries which is 20 mass% or less. |