| 摘要 |
PURPOSE:To prevent shortcircuiting of an electrode inside of battery and accomplish a battery excellent in the safety by using an aggregate of carbon fibers to the electricity collector of a pos. electrode. CONSTITUTION:The electricity collector of a pos. electrode 3 consists of a carbon cloth 2a, which is electrically connected with the pos. electrode exfoliation part 4 by means of pinching a pos. electrode tab 5 of stainless steel by electroconductive film 6 from the two sides, followed by heat welding. An aggregate of carbon fibers 2a is used as an electricity collector of pos. electrode 3, and thereby internal shortcircuiting of the battery is prevented without risk of penetrating the separators 9 even in the event of burr production at the time of cutting. The carbon fibers 2a used are produced through baking in non oxygen atmosphere, which are stable and excellent in anti-chemical property, so that there is no fear of deterioration caused by organic electrolyte etc., in the battery. Thereby penetration of the separators will never happen even in the event of burr generation at the time of cutting, and internal shortcircuiting can be suppressed. |
