Process for cutting polymer electrolyte multi-layer batteries and batteries obtained thereby
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United States of America Patent
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Sep 9, 2003
Issued Date -
N/A
app pub date -
Sep 10, 1999
filing date -
Sep 14, 1998
priority date (Note) -
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Abstract
A stacking of battery laminate is prepared, each battery consisting of anode, polymer electrolyte, cathode films and possibly an insulating film, under conditions suitable to constitute a rigid monoblock assembly, in which the films are unitary with one another. The assembly obtained is thereafter cut in predetermined shape by using a mechanical device without macroscopic deformation of the films constituting the assembly and without inducing permanent short circuits. The battery which is obtained after cutting includes at least one end which appears as a uniform cut, the various films constituting the assembly having undergone no macroscopic deformation, the edges of the films of the anode including an electronically insulating passivation film.
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