Patent ID: 11958382
Assignee: HONEYCOMB BATTERY COMPANY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H  Y | IPC B  H

Claim 0:
1. A battery charging system comprising
(a) at least one charging circuit to charge at least one rechargeable battery cell; and
(b) a heating device to provide heat that is transported through a heat spreader element, implemented outside said at least one battery cell and in thermal communication with an external surface of said battery cell, to heat up said battery cell to a desired temperature Tc before or during charging of said battery cell, wherein the heat-spreader element does not receive an electrical current from the charging circuit to generate heat inside the battery cell for internal resistance heating of the battery cell, wherein said battery charging system further comprises (c) a cooling device in thermal communication with the heat spreader element configured to enable transporting internal heat of the battery cell through the heat spreader element to the cooling device when the battery cell is discharged, wherein the cooling device is not in thermal contact with the heat spreader element when the battery cell is heated by the heating device, wherein the cooling device includes both a thermal interface portion and a cooling portion, wherein the heating device or the cooling device has a connector that selectively engages with a tab of said heat spreader element.