Charger for lithium secondary battery and electronic...

Details Charger for lithium secondary battery and electronic... Charger for lithium secondary battery and electronic...

2007-07-24

2007-07-24

Easthom, Karl (Department: 2838)

Electricity: battery or capacitor charging or discharging

Battery or cell charging

Time control

C320S161000, C320S162000, C429S209000, C429S061000, C429S218100, C429S231100

Reexamination Certificate

active

11108746

ABSTRACT:
A charger for a secondary battery including a positive electrode, a negative electrode including lithium-containing silicon represented by the composition formula LixSi, and an electrolyte. This charger includes: (1) a voltage detector that detects voltage of the secondary battery that is being charged; and (2) a charge controller that calculates the value x in LixSi included in the secondary battery from an output of the voltage detector and stops the charging of the secondary battery when the calculated value x reaches a predetermined threshold value. The charge controller has at least one settable threshold value including a first threshold value, and the first threshold value is 2.33 or less. The use of this charger makes it possible to charge the secondary battery such that it has a high capacity, or a higher capacity if necessary, without accelerating the deterioration of cycle life.

REFERENCES:
patent: 5556721 (1996-09-01), Sasaki et al.
patent: 6051954 (2000-04-01), Nagao et al.
patent: 6657415 (2003-12-01), Saeki et al.
patent: 6674265 (2004-01-01), Yoshida et al.
patent: 2005/0214646 (2005-09-01), Kubota
patent: 07029602 (1995-01-01), None
patent: 2002218668 (2002-08-01), None
patent: 2002352797 (2002-12-01), None
patent: 2002359008 (2002-12-01), None

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