| 摘要 |
PROBLEM TO BE SOLVED: To prevent an armoring can from being short-circuited to a sealing cover by contact to another battery or the like without changing the outside dimension of the battery. SOLUTION: A battery case 1 is formed by fitting a negative electrode can 5 into a positive electrode can 3 opened upward through a gasket 6, and the positive electrode can 3 is sealed to and insulated from the negative electrode can 5 by the gasket 6 with the upper surface 5a of the negative electrode can 5 exposed. An insulating coating part 11 having an insulating property is circularly formed along a periphery of the upper surface 5a of the negative electrode can 5. COPYRIGHT: (C)2008,JPO&INPIT
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