| abstract |
A positive electrode paste for a lithium ion battery, comprising: (A) a positive electrode active material, (B) a conductive auxiliary agent, (C) at least one of an ethylenically unsaturated carboxylic acid ester and an ethylenically unsaturated carboxylic acid, and A resin binder composed of a copolymer of an aromatic vinyl compound, (D) a thickening and dispersing agent, (E) pH adjuster, and (F) water, the content of the aforementioned (E) pH adjuster, relative to the positive electrode activity For 100 parts by mass of the solid content of the substance, it is 0.1 parts by mass or more and 1.0 parts by mass or less, and the pH of the paste is 6.0 to 8.0 at 23°C. |