| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact nonaqueous electrolyte secondary battery with improved high-rate charge discharge characteristics. SOLUTION: In addition to connection of a cathode tab 3 with a cathode collector 1 in ultrasonic welding or the like, a conductive sheet 2 is arranged so as to cover a joint part from above the cathode tab 3. COPYRIGHT: (C)2009,JPO&INPIT
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