| 摘要 |
PURPOSE:To sharply improve a discharge shelf characteristic or an over discharge shelf characteristic by providing an electrode in which an electrode current collecting body, composed of a lead alloy including tin, is used, and a substance, having low surface energy and chemical resistance, exists in an electrode active material or in the vicinity of an electrode surface. CONSTITUTION:An electrode is provided in which an electrode current collecting body, composed of either alloy of Pb-Sn alloy, Pb-Ca-Sn alloy, Pb-Ca-Sn-Sb alloy, and Pb-Ca-Sn-Sb-Al alloy having a small liquid-reduction property and self discharge and a good over discharge shelf characteristic, is used, and a substance, having low surface energy and chemical resistance, exists in an electrode active material or in the vicinity of an electrode surface. For example, graphite fluoride is used as a substance having low surface energy and chemical resistance. |
