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US 11,081,743 B2Granted
Battery module with heat dissipating encapsulant material and methods therefor
AssigneeA123 Systems, Inc.
InventorsYang Chen, Jonathan Hostler, Dylan Propst
Life of this patent
Estimating the term…
Abstract
Disclosed herein, is a battery module that comprises an encapsulant material exhibiting improved thermal transfer and heat dissipation characteristics. In one example embodiment, the battery module comprises a “stack” of cells, wherein at least some of the cells, and optionally each cell, is not separated by a metal plate or tab-shaped heat sink layer, and instead, the cells are substantially surrounded by an encapsulant material and stacked directly upon one another.
Claims10
A battery module, comprising:
- a solid metal aluminum external enclosure;
- one or more prismatic electrochemical cells disposed within the solid metal aluminum external enclosure;
- an electronics board communicatively coupled to the one or more prismatic electrochemical cells;
- a silicone encapsulant material disposed within an interior of the solid metal aluminum external enclosure and fully surrounding and encapsulating the one or more prismatic electrochemical cells, the silicone encapsulant material configured to receive and dissipate heat from within the battery module, wherein the silicone encapsulant material comprises a cured mixture of a liquid and a silicone material, and wherein the silicone encapsulant material fully surrounds gaps or recesses within the interior of the solid metal aluminum external enclosure;
- and
- a front cover panel releasably coupled to the solid metal aluminum external enclosure.
3 more elements
A battery pack, comprising:
- one or more battery modules comprising a plurality of electrochemical cells, wherein the plurality of electrochemical cells are arranged in a prismatic stack, an extrusion housing the plurality of electrochemical cells configured to direct excess heat away from the one or more battery modules, a silicone encapsulant material comprising a cured liquid encapsulant disposed within the extrusion and configured to receive excess heat from the one or more battery modules, wherein the silicone encapsulant material fully surrounds the prismatic stack of electrochemical cells, and a front cover panel removably coupled to the extrusion;
- the extrusion, wherein the extrusion is configured to fully surround the one or more battery modules;
- and
- one or more externally disposed electrical connection ports configured to supply a charge from within the battery pack to a load.
1 more element
Dependencies are inferred from the claim text.