| 摘要 |
A stack type battery has a positive electrode plate (1) (a first electrode) having a positive electrode active material layer (1a) (active material mixture layer) formed on at least one side of a current collector made of a metal plate and a positive electrode current collector lead (11) (a portion in which the metal is exposed) provided in a portion thereof, the positive electrode plate (1) and the positive electrode current collector lead (11) facing a negative electrode plate (a second electrode) across a separator (3a). A protective layer (13) made of a material having a lower electron conductivity than the metal of the current collector and being non-insulative is formed at a portion of the positive electrode plate (1) between the positive electrode current collector (11) and the separator (3a). The positive electrode current collector lead (11) and the separator (3a) are jointed to each other by the protective layer (13). |
