Apparatus and method of simulating high battery temperature in a

Details Apparatus and method of simulating high battery temperature in a Apparatus and method of simulating high battery temperature in a

1994-12-27

1997-04-22

Tso, Edward H.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 35, H01M 1046

Patent

active

056231962

ABSTRACT:
A device (111) for simulating a high battery temperature used in charging a rechargeable cell (101). The device takes advantage of a control signal generated by a voltage control circuit (103) used to disconnect a rechargeable cell (101) from a charging system (105) when a predetermined voltage is reached. The device (111) is generally used with cells having a lithium based chemistry and requiring a different charging regime then nickel chemistry cells. The device (111) is activated by the control signal from control circuit (103) which detects a predetermined voltage from rechargeable cell (101) enabling thermistor (113) to change its state. This change is detected by the charging system (105) which alters its mode of operation from a rapid charging rate to a slower charging rate. The device is retrofitable to existing rechargeable batteries allowing them to be charged using existing charging systems alien to the rechargeable battery.

REFERENCES:
patent: 4992722 (1991-02-01), Maruyama et al.
patent: 5166596 (1992-11-01), Goedken

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