05583416 is referenced by 136 patents and cites 46 patents.

Apparatus and method for charging a battery, wherein a target voltage is applied to a battery. During charging, the applied voltage is periodically increased and decreased a predetermined amount to modify the applied voltage by a small step in either direction. The charging input is measured as the current flow to the battery at each of the applied levels, and the target charging voltage is adjusted in the direction of the improved charge acceptance as indicated by the differentials of the input current flow at the increased and decreased levels. By repeating the process, the charging voltage is continually moved in the direction of an optimized charge acceptance level. Alternatively, a target current is applied and increased and decreased by a small step and adjusted in the direction of the improved charge acceptance, which corresponds to the differentials of the resulting voltages at the increased and decreased levels.

Title
Apparatus and method for step-charging batteries to optimize charge acceptance
Application Number
8/188957
Publication Number
5583416
Application Date
January 26, 1994
Publication Date
December 10, 1996
Inventor
James K Klang
Rosemount
MN, US
Agent
Leydig Voit & Mayer
Assignee
GNB Battery Technologies
MN, US
IPC
H01M 10/46
H01M 10/44
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