| 摘要 |
PURPOSE:To obtain a lead-acid battery having good initial performance and life performance by using a positive plate containing a vapor phase growth carbon fiber having a specified quantity of acidic functional group. CONSTITUTION:A positive plate containing a vapor phase growth carbon fiber having an acidic functional group of 3-500mueq/g is used. This carbon fiber is prepared in such a way that a carbon source such as hydrocarbon is heated under the existence of catalyst to grow fibrous carbon from vapor phase. The fibrous carbon, crushed or cut fibrous carbon, or heated crushed or cut fibrous carbon is used. At least 0.01 pts. wt. carbon fiber obtained is mixed with 100 pts. wt. lead oxide to produce the positive plate. Thereby, a lead-acid battery having good initial performance and life performance can be obtained. |
