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

Claim 1:
2. The power supply device according to claim 1, wherein
the battery block is divided into a plurality of core modules,
the plurality of core modules include groups of battery cells out of the plurality of the battery cells, each of the plurality of core modules includes a corresponding group of the battery cells,
the groups of the battery cells of the plurality of core modules are arranged in parallel to one another,
the plurality of core modules have negative electrode surfaces which negative electrodes of the groups of the battery cells are flush with,
the plurality of core modules have positive electrode surfaces which positive electrodes of the groups of the battery cells are flush with, the positive electrode surfaces of the plurality of core modules being opposite to the negative electrode surfaces of the plurality of core modules,
the lead plates are disposed on the negative electrode surfaces and the positive electrode surfaces of the plurality of core modules,
negative electrode lead plates out of the lead plates which are on the negative electrode surfaces are connected to the negative electrodes of the groups of battery cells,
positive electrode lead plates out of the lead plates which are on the positive electrode surfaces are connected to the positive electrodes of the group of the battery cells,
the sheet heater is thermally coupled to and placed on surfaces of the negative electrode lead plates on sides of the negative electrode surfaces of the plurality of core modules, and
the sheet heater is configured to heat the groups of the battery cells from the negative electrodes that are one end portions of the groups of the battery cells via the negative electrode lead plates.