Battery charge indicator

Details Battery charge indicator Battery charge indicator

H - Electricity

01

M

H01M 6/02 (2006.01) G01R 31/36 (2006.01) H01M 2/10 (2006.01) H01M 6/50 (2006.01) H01M 10/48 (2006.01)

Patent

CA 2088668

2088668 9222100 PCTABS00018 A battery charge indicator is permanently incorporated into a battery to indicate the state of charge. The indicator includes a compressible chamber which is filled with a viscous gel and which is exposed to the expansible cathode of the battery. As the battery discharges, the cathode expands thus causing the gel within the chamber to be extruded out through an outlet (13a) into a viewing channel (12a, 12b, 12c) in an overlying disk (12). The amount of gel flowing into the viewing channel is proportional to the amount of expansion of the cathode and, thus indicates the amount of discharge and, conversely, the remaining life of the battery.

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