| 摘要 |
PROBLEM TO BE SOLVED: To minimize the occurrence of a leakage failure caused by a structure of a core material when spirally winding the core material while improving a volume ratio occupied by an active material by utilizing the core material that withstands rolling by a high pressure. SOLUTION: An electrode for an alkaline storage battery uses a conductive core material as a collector. A plurality of nearly rectangular through holes are provided in the core material linearly in parallel along the longitudinal direction of the core material. When a through hole length in the longitudinal direction of the core material is set as b and an interval between the through-holes each other in the longitudinal direction of the core material as y, it is set so as to satisfy a relationship of 0.2b≤y≤0.5b. COPYRIGHT: (C)2009,JPO&INPIT
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