| 摘要 |
PROBLEM TO BE SOLVED: To provide a separator for a battery, which can make an electrode group impregnated with an electrolyte in an electrolyte filling process for a short time with high productivity. SOLUTION: An electrode group 1, into which a positive electrode plate and a negative electrode plate are wound/made by sandwiching a separator 4, is housed in an encapsulating case together with the electrolyte, to constitute the battery. Linear shape concave grooves 15, at least one ends of which face the one side periphery of the separator 4, and which are arranged consecutively, are formed substantially at a specified interval between each other over the entire surface of the separator 4. COPYRIGHT: (C)2004,JPO |
