NONAQUEOUS ELECTROLYTE BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte battery using a thin expanded metal in which fine laths are formed to make small and lightweight as a current collector. SOLUTION: Each current collector 1a of a positive electrode and a negative electrode is formed with a 0.1 mm or less thick expanded metal 20 in which a plain part 22 with no laths formed is formed in the central part and both side parts in the width direction and laths 21 having fine mesh structure are formed in a part other than the plain part 22. Strength is ensured with the plain part 22, current collecting properties are enhanced with the fine laths. By cutting out a current collector 1a from the expanded metal 20 coated with active material so that a lead connecting part 1c is positioned in the plain part 22, and weldability for welding a lead to the lead connecting part 1c is enhanced since the plain part 22 has no openings.