| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a negative electrode plate for lead storage battery which is equipped inside a secondary battery used for a hybrid electric vehicle (HEV) and other industrial uses to demand high-rate discharge, and attains superior high-rate discharge characteristics and improvement of cycle lifetime, without fail. <P>SOLUTION: In the negative electrode plate for the lead storage battery, a material formed by adding and mixing conductive carbon and active carbon to a negative electrode active material is supported by a substrate for current collection, and as the active carbon, the active carbon of 44.5° or less of a gravity point angle of 10 faces by X-ray diffraction is used. The lead storage battery equipped with such a negative electrode plate makes improvement of cycle lifetime, without fail. <P>COPYRIGHT: (C)2011,JPO&INPIT |
