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US 8,945,749 B2Granted
Carbon fiber thermal interface for cooling module assembly
AssigneeGM Global Technology Operations LLC
InventorsAxel Heise, Alastair Gordon Anderson, Stefan Toepfer
Life of this patent
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Abstract
A cooling system includes a cooling plate configured to abut a battery cell. A heat sink is in thermal communication with the cooling plate by at least one carbon fiber brush, the carbon fiber brush coupled to one of the cooling plate and the heat sink and flexible at a free end.
Claims17
A cooling system for a battery cell, comprising:
- a cooling plate configured to abut the battery cell;
- and
- a heat sink in thermal communication with the cooling plate by at least one carbon fiber brush, the at least one carbon fiber brush coupled to one of the cooling plate and the heat sink and flexible at a free end to allow the free end of the at least one carbon fiber brush to maintain thermal communication between the cooling plate and the heat sink while allowing for differences in construction tolerance related to a spacing difference between the cooling plate and the heat sink to be accommodated by flexure of the at least one carbon fiber brush at the free end;
- wherein the at least one carbon fiber brush includes a bundle of carbon fibers, and wherein each carbon fiber in the carbon fiber brush includes graphene.
1 more element
A cooling system for a battery cell, comprising:
- a cooling plate configured to abut the battery cell;
- and
- a heat sink in thermal communication with the cooling plate by a carbon fiber brush, wherein multiple brush fibers of the carbon fiber brush are fixed to the cooling plate and flexible at a free end positioned proximate to the heat sink to allow the free end of the carbon fiber brush to maintain thermal communication between the cooling plate and the heat sink while allowing for differences in construction tolerance related to a spacing difference between the cooling plate and the heat sink to be accommodated by flexure of the carbon fiber brush at the free end;
- wherein the at least one carbon fiber brush includes a bundle of carbon fibers, and wherein each carbon fiber in the carbon fiber brush includes graphene.
1 more element
Dependencies are inferred from the claim text.