Process for preparing cathode of lithium battery and lithium battery having the cathode
AssigneeZhongyin (Ningbo) Battery Co., Ltd.
InventorsCaoping Lin, Zuhua Ma, Ruirui Liu
Life of this patent
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Abstract
A process for preparing a cathode of a lithium battery, having the following steps: (a) Longitudinally punching a metal band to form irregular filamentous holes, horizontally stretching the metal band, and performing compaction to give the metal net irregular filamentous holes; (b) After the metal net is cleaned and dried, processing the metal net surface by a laser less than 5W, of 500-1000W, and of 10-100W sequentially; and (c) Coating the metal net, having the surface processed with lasers, with a prepared cathode paste, and drying, pressing, and cutting the metal net to obtain a battery cathode.
Claims10
A process for preparing a cathode of a lithium battery, comprising the following steps:
- (a) longitudinally punching a metal band to form irregular filamentous holes, horizontally stretching the metal band, and performing compaction to make a metal net having the irregular filamentous holes;
- (b) after the metal net is cleaned and dried, processing a surface of the metal net with a laser powered at less than 5 W, a laser powered at 500 to 1000 W, and a laser powered at 10 to 100 W sequentially;
- and
- (c) coating the metal net, having the surface processed with the lasers, with a prepared cathode paste, and drying, pressing, and cutting the metal net to obtain a battery cathode.
Dependencies are inferred from the claim text.