Patent ID: 11916214
Assignee: PANASONIC ENERGY CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A power supply device comprising:
a battery block including a plurality of battery cells, the plurality of battery cells including positive electrodes and negative electrodes, each of the plurality of battery cells including a corresponding one of the positive electrodes and a corresponding one of the negative electrodes at both ends of the each of the plurality of battery cells;
lead plates connected to the positive electrode and the negative electrode of the plurality of battery cells to electrically connect the battery cells to one another; and
a sheet heater configured to heat the battery cells, the sheet heater including a plurality of heating sheet portions, and a heater wire configured to interconnect the plurality of heating sheet portions, wherein
one of the lead plates connected to the positive electrode and the negative electrode disposed on one side of the battery block, the sheet heater is thermally coupled only to negative electrode lead plates, but not to positive electrode lead plates, wherein the heater wire is separated by a gap from the positive electrode lead plates.