| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lead acid battery capable of suppressing a short circuit generated due to protruding of a positive electrode active material toward a side surface of a retainer even if the retainer is thin. <P>SOLUTION: The lead acid battery includes a positive electrode, a negative electrode and the retainer arranged between the positive electrode and the negative electrode. The retainer is a laminate formed by laminating a polyethylene nonwoven fabric and a glass fiber nonwoven fabric so that the polyethylene nonwoven fabric is on a side of the positive electrode, and the polyethylene nonwoven fabric is preferably subjected to hydrophilic treatment. <P>COPYRIGHT: (C)2012,JPO&INPIT |
