Secondary cell replacing method

Details Secondary cell replacing method Secondary cell replacing method

2011-08-16

2011-08-16

Lee, Cynthia (Department: 1726)

Chemistry: electrical current producing apparatus, product, and

With measuring, testing, or indicating means

For charge or liquid level

C429S090000, C320S127000, C320S128000, C320S129000, C320S130000, C320S131000, C320S132000, C320S134000

Reexamination Certificate

active

07998609

ABSTRACT:
In a pre-replacement process, a replacement battery module is provided with a memory effect before being dispatched, by performing at least one of the process of performing a cyclic charge/discharge operation on the replacement battery module while limiting the width of SOC change to an intermediate range, and the process of setting an initial SOC and then letting the replacement battery module stand for a predetermined time in an environment of temperature above normal temperature. This pre-replacement process substantially eliminates the difference between the voltage characteristic of the replacement battery module yet to be used and the voltage characteristic of a battery module having a history of use, thereby achieving a uniform voltage characteristic of a battery pack as a whole.

REFERENCES:
patent: 5920180 (1999-07-01), Kim
patent: RE37678 (2002-04-01), Ikawa et al.
patent: 2001/0035737 (2001-11-01), Nakanishi et al.
patent: 2003/0117109 (2003-06-01), Trepka
patent: 2-101937 (1990-04-01), None
patent: 11-317243 (1999-11-01), None
patent: 2002-15781 (2002-01-01), None

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