| 摘要 |
PURPOSE: To provide an electrode with high electrochemical efficiency, while maintaining effectiveness of active material by using a three-dimensional plastic network body made of plastic yarn which is covered by copper high conductivity thin film layers as a grid plate. CONSTITUTION: A grid plate is a woven or knitted plastic network material. A plastic yarn 13 consists of plural monofilaments 13'. The monofilament 13' is covered with someμm thick copper thin film, and the plastic yarn 13 is covered by coating 24 of lead or lead-tin alloy. Round earlobe-shaped recessed parts 32 and projecting parts 33 are alternately formed, partly away from a surface of a grid plate 11 by pulling in deeply the plastic network material or plastic yarn 13 towards the surface. These recessed parts 32 and projecting parts 33 form as storage area 12 for receiving an active material.
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