| abstract |
(57) [Summary] [Purpose] By subjecting nickel hydroxide particles, which are the main component of the positive electrode active material, to surface treatment, the non-sintered positive electrode can be used for charge / discharge cycle life and battery characteristics such as high rate discharge characteristics Aim to improve. [Structure] A part or all of the surface of nickel hydroxide mother particles, which is the main constituent material of the positive electrode active material, is coated with a child particle material composed of at least one of metal, metal oxide or carbon by a mechanochemical reaction. how to. |