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US 2019/0054814 A1Published application
Multi-functional cooling channel and busbar for battery cell pack
AssigneeGM Global Technology Operations LLC
InventorEvan J. Dawley
Life of this patent
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Abstract
A prismatic battery stack includes a first lithium-ion battery cell and a second lithium-ion battery cell. The battery stack also includes a first channel disposed around the first lithium-ion battery cell and the second lithium-ion battery cell. The battery stack includes a second channel disposed around the first lithium-ion battery cell and the second lithium-ion battery cell. The first channel and the second channel serve as heat sinks.
Claims20
A prismatic battery stack, comprising:
- a first lithium-ion battery cell, wherein the first lithium-ion battery cell includes:
- a first containment defining a first inner-containment surface and a first outer-containment surface opposite the first inner-containment surface;
- a first cathode tab protruding out from the first containment;
- a first anode tab protruding out from the first containment;
- a second lithium-ion battery cell electrically connected to the first lithium-ion battery cell, wherein the second lithium-ion battery cell includes:
- a second containment defining a second inner-containment surface and a second outer-containment surface opposite the second inner-containment surface;
- a second cathode tab protruding out from the second containment;
- a second anode tab protruding out from the second containment;
- a first channel disposed around the first lithium-ion battery cell and the second lithium-ion battery cell;
- a second channel disposed around the first lithium-ion battery cell and the second lithium-ion battery cell;
- wherein the first channel serves as a first heat sink to allow heat transfer from both the first lithium-ion battery cell and the second lithium-ion battery cell to the first channel;
- and
- wherein the second channel serves as a second heat sink to allow heat transfer from both the first lithium-ion battery cell and the second lithium-ion battery cell to the second channel.
10 more elements
A vehicle, comprising:
- a plurality of wheels;
- an electric motor coupled to at least one of the plurality of wheels;
- a prismatic battery pack electrically connected to the electric motor, wherein the prismatic battery pack includes:
- a first lithium-ion battery cell, wherein the first lithium-ion battery cell includes:
- a first containment defining a first inner-containment surface and a first outer-containment surface opposite the first inner-containment surface;
- a first cathode tab protruding out from the first containment;
- a first anode tab protruding out from the first containment;
- a second lithium-ion battery cell electrically connected to the first lithium-ion battery cell, wherein the second lithium-ion battery cell includes:
- a second containment defining a second inner-containment surface and a second outer-containment surface opposite the second inner-containment surface;
- a second cathode tab protruding out from the second containment;
- a second anode tab protruding out from the second containment;
- a first channel disposed around the first lithium-ion battery cell and the second lithium-ion battery cell;
- a second channel disposed around the first lithium-ion battery cell and the second lithium-ion battery cell;
- wherein the first channel serves as a first heat sink to allow heat transfer from both the first lithium-ion battery cell and the second lithium-ion battery cell to the first channel;
- wherein the second channel serves as a second heat sink to allow heat transfer from both the first lithium-ion battery cell and the second lithium-ion battery cell to the second channel;
- wherein the first channel serves as a first busbar to electrically connect the first cathode tab of the first lithium-ion battery cell to the second cathode tab of the second lithium-ion battery cell;
- and
- wherein the second channel serves as a second busbar to electrically connect the first anode tab of the first lithium-ion battery cell to the second anode tab of the second lithium-ion battery cell.
15 more elements
A method, comprising:
- placing a first channel around a first lithium-ion battery cell and a second lithium-ion battery cell;
- placing a second channel around the first lithium-ion battery cell and the second lithium-ion battery cell;
- wherein the first channel serves as a first heat sink to allow heat transfer from both the first lithium-ion battery cell and the second lithium-ion battery cell to the first channel;
- and
- wherein the second channel serves as a second heat sink to allow heat transfer from both the first lithium-ion battery cell and the second lithium-ion battery cell to the second channel.
2 more elements
Dependencies are inferred from the claim text.