Electrode winding method and electrode winding device

A technology of electrode coils and electrodes, which is applied in the directions of coiling strips, coiling/folding electrodes, transportation and packaging, etc., which can solve the problems that batteries or storage batteries cannot be used in manufacturing, so as to save electrode materials, avoid waste, and reduce manufacturing costs Effect

Inactive Publication Date: 2013-04-17
KOMATSU NTC LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Also, this technique is for individual strips and thus cannot be applied to the manufacture of batteries or accumulators

Method used

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  • Electrode winding method and electrode winding device
  • Electrode winding method and electrode winding device
  • Electrode winding method and electrode winding device

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Embodiment Construction

[0035] Based on the electrode winding method according to the present invention figure 1 and figure 2 In the electrode winding device shown, the strip-shaped positive electrode side electrode 2 and the negative electrode side electrode 3 and the strip-shaped spacers 4 and 5 for insulation to be sandwiched between the pair of electrodes 2 and 3 are drawn from the corresponding reels. 6, 7, 8, 9 are sent out, guided between a pair of pinch rollers 10 by a plurality of guide rollers 11, 12, 13, 14, floating rollers (not shown) etc. provided as necessary, and through this The pair of pinch rollers 10 is finally wound around the outer peripheral surface of the core 38 .

[0036] A pair of pinch rolls 10 is provided near the finished product winding position S in such a manner that at least one of the pinch rolls 10 can be brought into contact with and separated from the other, as necessary. Each electrode 2 or 3 passes in front of the electrode holder 23 or 24, a pair of electro...

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PUM

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Abstract

In a laminated-layer winding process of a battery or a condenser, when a defect mark is detected, one full product is not discarded as a defective product, but only an electrode including a defective portion can be discarded separately. An electrode winding process includes the steps of: interposing separators (4, 5) between a pair of positive and negative electrodes (2, 3); winding the electrodes (2, 3) and the separators (4, 5) each having one product length of L around a core (38); and cutting the electrodes (2, 3) and the separators (4, 5) on a per-one-product-unit basis. In the electrode winding process, defect marks (15, 16) are detected at the respective electrodes (2, 3), which are marked on the respective electrodes (2, 3) at upstream positions in the electrode movement direction, located one product length of L or more from a product winding position (S). When the defect marks (15, 16) are detected on the electrodes (2, 3) within the one product length of L to be wound next, defective portions of only the electrodes (2, 3) corresponding to the defect marks (15, 16) are wound from a winding start end (P) of the electrodes having the one product length of L, thereby separating the defective portions from the electrodes (2, 3) and discarding the separated defective portions.

Description

technical field [0001] The present invention relates to the technique of removing the defects of electrodes when forming laminated electrodes by winding strip-shaped electrodes together with separators by means of winding devices part. Background technique [0002] For example, in a storage battery, a pair of (positive, negative) electrodes are provided in a case in a state of being wound around a core (winding core). A pair of electrodes is wound to the desired length on a core with a separator sandwiched between them, and then cut into a finished unit. [0003] If an electrode is defective during the manufacture of each electrode, a label or some other marking device is used to mark the defective portion of the electrode and attach a defect flag. Therefore, if a defect mark is detected during the electrode winding process, it is necessary to discharge the defect portion corresponding to the defect mark as a defective electrode to prevent the defect portion from being mix...

Claims

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Application Information

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IPC IPC(8): B65H19/22H01G13/02H01M6/02H01M10/04
CPCH01G13/02H01M10/0409H01M10/0431Y02E60/10Y02P70/50B65H18/08B65H26/02B65H43/04B65H2701/19
Inventor 杉原勉
Owner KOMATSU NTC LTD
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