| 摘要 |
PROBLEM TO BE SOLVED: To provide an expand positive electrode plate excellent in output characteristic at high rate discharge and in cycle life characteristic. SOLUTION: A lead alloy sheet 1 is machined to give multiple cuts laterally, which is developed longitudinally to form a developed part 18. Lead alloy ribbons 3 are press-fitted to the developed part 18 using a cold press-fitting device 4, to form longitudinal ribs 19. After an active material paste 8 is filled in, cut the sheet is at the longitudinal ribs 19, and longitudinal frame ribs 11 are formed on both sides for the expand type electrode plate for a positive electrode. |
