| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery pack capable of exerting superb battery performance by reliably making an outer package case and a lid ultrasonically welded. SOLUTION: A plurality of substrate-fixing ribs 51 (51a to 51h) in a stripe shape are formed in an area of an inside main surface 50 of the lid 5 opposed to a side of a protective circuit board 3. Inside the battery pack 1, tips of the substrate-fixing ribs 51 (51a to 51h) formed and sides of the protective circuit board 3 are set to be close to or in abutment with each other. COPYRIGHT: (C)2011,JPO&INPIT |
