| 摘要 |
PURPOSE:To provide a lead acid battery excellent in weight efficiency. CONSTITUTION:In a lead-acid battery formed by adding electron conductive carbon whiskers or graphite whiskers to a negative electrode active material, apparent density of the negative electrode active material is 2.2-3.0. In the lead-acid battery formed by adding the electron conductive carbon whiskers or graphite whiskers to the negative electrode active material, a measure area of a grid body is 120-280mm<2>. |
