| 摘要 |
PURPOSE:To improve the yield rate of metal lithium, by arranging resin in a fixed pattern on the metal surface of a resin film on which metal is coated or metal foil, and press-fitting metal lithium to the part where the resin is not arranged. CONSTITUTION:A resin film 3 of at least 2-layer constitution composed of adhesive, and on which plural holes are provided at a fixed pattern, is in thermally bonded onto a metal collector 1. Then, when a metal lithium block 4 (rodlike lithium or thick lithium foil, etc., having the same width as or a little smaller than that after rolling) is arranged at a tip part in a rolling roller proceeding direction in respective holes of the film 3, and is rolled by a rolling roller 6 via a resin film 5 for preventing lithium adhering after one end is pressed to be temporarily fixed and the metal lithium block 4 is press-fitted, as metal lithium foil 7, to the surface of the collector 1. This can improve the yield rate of metal lithium.
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