Patent ID: 7695864

Claim:
An electrode plate for a nonaqueous battery, in which an active material layer formed on a surface of a current collector core material is coated by a porous protective film, the electrode plate comprising: a both-surface coated part in which the active material layer and the porous protective film are formed on both surfaces of the current collector core material; a core material exposed part which is an end part of the current collector core material and in which the active material layer and the porous protective film are not formed; and a one-surface coated part which is provided between the both-surface coated part and the core material exposed part and in which the active material layer and the porous protective film are formed on only one of surfaces of the current collector core material, wherein a plurality of grooves are formed in both surfaces of the both-surface coated part and are not formed in the one-surface coated part, and the grooves are formed in a surface of the active material layer as well as a surface of the porous protective film so that each of the grooves extends from the porous protective film to the active material layer and the porous protective film has a smaller thickness than a depth of the grooves.