| 摘要 |
PURPOSE:To improve the transfer accuracy to the negative electrode collector surface and the manufacturing speed of the negative electrode collector of metal lithium or lithium allay, and the battery performance quality by using continuous metal lithium foil or lithium alloy foil slit into a fixed width previously, or doing others. CONSTITUTION:Metal lithium foil 1 bonded to a resin film 2 is cut into a fixed dimension by the blades 4 of a die roll 3. The cut metal lithium foil 1' is attached to the protruded portion 6 of a transfer device 5 by synchronizing the feed of the film 2 with the rotation of the device 5. After the transfer of the foil 1', the movement of the foil 1 stops momentarily until the next protrusion portion 6' of the device 5 coincides with the tip of the next cut lithium foil 1''. At the point of coincidence, the foil 1'' is attached to the protrusion portion 6' of the device 5, and this operation is continued. The transferred foil 1' is again transferred into the hole 8 of adhesive 9 on which holes are provided with a fixed pattern on the upper surface of a negative electrode collector 7. Thereby transfer dislocation failure is reduced by about 18%, automation can be realized, the inside short-circuit of a battery is reduced about by 15%, and productivity is improved. |
