Patent ID: 11916201
Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. A method for desulfation in a lead-acid battery, the method comprising:
activating one or more first electromagnets and one or more second electromagnets to direct a magnetic field towards a plurality of ferromagnetic particles disposed within an electrolyte in a battery casing defining the lead-acid battery so as to cause the plurality of ferromagnetic particles to move within the electrolyte, at least a portion of the plurality of ferromagnetic particles having a horseshoe shape and each ferromagnetic particle of the plurality of ferromagnetic particles comprising a shell of ferromagnetic material at least partially disposed around a central region comprising a polymeric foam, the one or more first electromagnets being fully encased in the battery casing, the battery casing comprising and enclosing two or more cell compartments, the two or more cell compartments defined by one or more integrated walled partitions disposed within the battery casing, and the one or more second electromagnets fully encased in the one or more integrated walled partitions.