| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of quickly filling an electrolyte in a wound cylindrical battery when manufacturing it. SOLUTION: A collector 20 comprises a positive electrode plate 21 and a negative electrode plate 24 both having a plurality of holes, and a separator 26 for separating both electrodes. The separator 26 is made of a material to allow penetration of the electrolyte. The hollowed wound core 12 is provided with a plurality of through holes 14, so that the electrolyte 35 filled in the central part 16 of the hollowed core 12 can pass the through holes 14 towards the collector 20, distributed through the small hoes 22, 25 of the positive and negative electrodes 21, 24, thus expediting the penetration of the electrolyte 35.
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