SQUARE BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a square battery equipped with a battery protecting means housing an electrode plate group in the main body case formed in a square half-shell body. SOLUTION: The battery protecting means 100 is structured on the outer face of a stepped part 116 formed at the end part of the main body case 11 formed in the a square half-shell body. The battery protecting means 100 may include a PTC element 133 and a temperature fuse independently or in combination. When a protecting circuit board 150 constituting a battery protecting circuit for protecting the battery from overcharge or over-discharge is further combined, a more effective battery protecting function can be constituted. COPYRIGHT: (C)2004,JPO&NCIPI