| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery manufacturing process with reduced cost and improved workability. SOLUTION: A plurality of first holding ribs 8, 8, 8, 8, protruded from separation walls 5, 5, 6, 6 forming a battery housing concave part 4, holding a first battery 100, and a plurality of second holding ribs 9, 9, 9, 9, 10, 10 protruded from the separation walls, holding a second battery 200 which has different shape or size from that of the first battery 100, are formed to the cell housing tray.
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