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US 12,009,489 B2Granted
Desulfation of lead acid batteries using electrolyte agitator
AssigneeGM Global Technology Operations LLC
InventorsYiChun Yan, Dave G. Rich, Saad Hasan, Lyall K. Winger, Varsha K. Sadekar
Life of this patent
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Abstract
A battery maintenance system includes an enclosure including a plurality of walls. A plurality of battery cells are located in the enclosure and surrounded by electrolyte. An electrolyte agitator such as a piezoelectric device is attached to at least one of the walls of the enclosure and is configured to selectively agitate the electrolyte.
Claims20
A battery maintenance system comprising:
- an enclosure including a plurality of walls;
- a plurality of battery cells located in the enclosure and surrounded by electrolyte;
- and
- an electrolyte agitator attached to an outer surface of at least one of the walls of the enclosure, the electrolyte agitator configured to selectively agitate the electrolyte.
1 more element
A vehicle battery system for a vehicle, the vehicle battery system comprising:
- an enclosure including a plurality of walls;
- a plurality of battery cells located in the enclosure and surrounded by electrolyte;
- an electrolyte agitator,- attached to an outer surface of at least one of the walls of the enclosure, the electrolyte agitator configured to selectively agitate the electrolyte;
- a drive circuit configured to selectively drive the electrolyte agitator;
- and
- a controller configured to determine when the vehicle has not been operating for a predetermined period and to selectively cause the drive circuit to drive the electrolyte agitator after the predetermined period.
3 more elements
A battery maintenance system comprising:
- an enclosure including a plurality of walls;
- a plurality of battery cells located in the enclosure and surrounded by electrolyte;
- a piezoelectric device arranged in at least one of the plurality of walls separating adjacent ones of the plurality of battery cells, the piezoelectric device configured to selectively agitate the electrolyte;
- a flyback circuit configured to selectively drive the piezoelectric device;
- and
- a controller configured to selectively cause the flyback circuit to output power to the piezoelectric device.
3 more elements
Dependencies are inferred from the claim text.