| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a storage battery with improved negative electrode reaction characteristic, suppressed dendrite, and superior in preservation characteristic by forming the electrode base of a negative electrode with a three-dimensional mesh metal porous body made of one from among silver, copper, tin, brass and bronze, forming the inner face of a battery case with the same material as the electrode base, and arranging the negative electrode in direct contact with the battery case. SOLUTION: An electrode base constituting a zinc electrode is manufactured as follows. A paste mixed with conductive carbon powder and water is filled into a foam urethane resin so as to impart conductivity to the surface of the resin. A metal plated layer is formed on the surface with a plating liquid of silver, copper, tin or the like. It is heated in air to burn foam urethane and carbon, and a metal porous body is formed. Since a part of the metal is oxidized in this process, a strong metal porous body is obtained after being sintered in the reducing atmosphere.</p> |
