Method for manufacturing an electrode of the lithium battery

Details Method for manufacturing an electrode of the lithium battery Method for manufacturing an electrode of the lithium battery

1996-07-26

1998-02-24

Skapars, Anthony

Metal working

Method of mechanical manufacture

Electrical device making

H01M 600

Patent

active

057207810

ABSTRACT:
A battery which can reduce the manufacturing steps, reduce the waste of material, and prevent a short during the winding process, and a manufacturing method of the winding assembly of the above battery, are disclosed. A metal sheet having an expanded metal and an electrode lead, which is integrally formed with the expanded metal is provided. A reactive material which reacts with an electrolyte to generate current, is applied to recesses of two mold blocks. Then, a first electrode section is formed by positioning the metal sheet between the mold blocks, pressure-molding the metal sheet, and applying the reactive material to the expanded metal. A stacked structure obtained by interposing a separator, which is a thin metal plate having a same size as the expanded metal, between the first electrode section and a second electrode section. The structure is then wound outwards to obtain a winding assembly. The quantity of raw material, the number of components of the battery, and the number of manufacturing steps are all reduced. Further, a short in the winding assembly during the winding step is prevented.

REFERENCES:
patent: 4975095 (1990-12-01), Strickland et al.
patent: 5021306 (1991-06-01), Sauer et al.
patent: 5158722 (1992-10-01), Ilic et al.
patent: 5380606 (1995-01-01), Itou et al.
patent: 5443925 (1995-08-01), Machida et al.
Patent Abstracts of Japan, pub. No. JP-2087462, vol. 14, No. 273, ab. date Jun. 1990.

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