SECONDARY CELL

摘要

A secondary cell (1) provided with a cell case (11), an electrode body (13) accommodated inside the cell case, and an electrolytic solution (14) containing an initial additive and filling the interior of the cell case, the electrode body being provided with adding means (a capsule (3)) for adding to the electrolytic solution a restoring additive for restoring a deteriorated state of a coating film formed by the initial additive, and the additive being added in response to the deteriorated state.