| 摘要 |
PROBLEM TO BE SOLVED: To provide an additive for a lead-acid storage battery which can re-activate the battery quicker than conventional additive, effective for long period. SOLUTION: Organic polymer and particulate lignin with diameter of 0.01-0.8μm are added as the additive to the lead-acid storage battery. Differing from the soluble lignin, the particulate lignin is insoluble to electrolytic solution of the lead-acid storage battery and maintains suspended state in the solution. Because of this, the particulate lignin is stable against the electrolytic solution, hardly decomposed, and effective for a long period. Furthermore, generation of hydrogen at charging can be effectively prevented, and charging efficiency of a negative electrode can be improved by adding particulate coprecipitating mixture of lead sulfate or barium sulfate. COPYRIGHT: (C)2004,JPO |
