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US 12,583,360 B2Granted
Electrode based charging control for vehicle battery
AssigneeGM Global Technology Operations LLC
InventorsBrian J. Koch, Jing Gao, Xi Chen
Life of this patent
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Abstract
A method for controlling charging of a battery to minimize or avoid lithium plating. The method may include charging the battery during with a first charge current having a first charge profile, monitoring charging of the battery with the first charge current, and thereafter charging the battery with a second charge current having a cathode charge profile to prevent a cathode potential of the battery from exceeding a cathode threshold.
Claims10
A method for minimizing or avoiding lithium plating when direct current (DC) fast charging a battery included in a vehicle, comprising:
- charging the battery during a first charging phase with a first charge current having a first charge profile, wherein the first charge profile is associated with the first charge current being provided to the battery prior to a cathode voltage potential approaching a cathode threshold;
- and
- commencing a second charging phase for charging the battery with a second charge current having a cathode charge profile, the cathode charge profile configured to prevent the cathode voltage potential from exceeding the cathode threshold by incrementally decaying the second charge current to prevent the cathode voltage potential of a cathode of the battery from exceeding the cathode threshold.
Dependencies are inferred from the claim text.