Method and apparatus for charging nonaqueous electrolyte...

Details Method and apparatus for charging nonaqueous electrolyte... Method and apparatus for charging nonaqueous electrolyte...

2011-06-21

2011-06-21

Tso, Edward (Department: 2858)

Electricity: battery or capacitor charging or discharging

Battery or cell charging

Multi-rate charging

C320S124000, C320S130000, C320S134000

Reexamination Certificate

active

07965062

ABSTRACT:
It is made possible to keep a nonaqueous electrolyte secondary battery in a charged state for a long period of time and minimize the degradation of the battery. A method for charging a nonaqueous electrolyte secondary battery including a cathode, an anode, and a nonaqueous electrolyte, includes: a first charging step of charging the nonaqueous electrolyte secondary battery at a first current value which increases the voltage of the nonaqueous electrolyte secondary battery; and a second charging step of charging the nonaqueous electrolyte secondary battery at a second current value which decreases the voltage of the nonaqueous electrolyte secondary battery. These two charging steps are repeated alternately.

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