| 摘要 |
PROBLEM TO BE SOLVED: To provide an anode additive for a lead-acid battery using kraft lignin without apprehension on its supply, manufactured by a kraft method, having an effect equivalent to that using sulfite lignin. SOLUTION: Carboxymethyl lignin with substitution degree of carboxymethyl group of 0.35 to 0.75, using kraft lignin as a raw material, is used as the anode additive for a lead-acid battery. COPYRIGHT: (C)2006,JPO&NCIPI
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