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US 2026/0269376 A1Published application
Battery pack and spacer
AssigneeMitsubishi Chemical Corporation
InventorsNaoya NINOMIYA, Kei HASHIMOTO, Tomohiro KAWAI, Kiyonori KURODA, Keita KAWANAMI
Life of this patent
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Abstract
A battery pack may have a spacer is disposed between unit cells, wherein the spacer includes an exterior material and an inclusion material, the exterior material includes a metal layer, and the metal layer is not in contact with the unit cells at a temperature of from 25 to 500° C. It is possible to provide a highly safe spacer and a battery pack incorporating the spacer.
Claims19
A battery pack, comprising:
- a spacer disposed between unit cells,
- wherein the spacer comprises an exterior material and an inclusion material,
- wherein the exterior material comprises a metal layer,
- wherein the metal layer is not in contact with the unit cells at a temperature of from 25° C. to 500° C.
1 more element
A battery pack, comprising:
- a spacer disposed between unit cells,
- wherein the spacer comprises an exterior material and an inclusion material,
- wherein the exterior material comprises a metal layer and a first layer outside the metal layer with respect to the inclusion material,
- wherein an area ratio, of an area of the first layer, after a heat treatment comprising heating from 25° C. to 500° C. at 10° C./min and holding at 500° C. for 10 minutes, to an area of the first layer before the heat treatment, is 15% or more.
1 more element
A spacer, comprising:
- an exterior material;
- and
- an inclusion material,
- wherein the exterior material comprises a metal layer,
- wherein the exterior material comprises a first layer outside the metal layer with respect to the inclusion material, and
- wherein an area ratio, of an area of the first layer after a heat treatment comprising heating from 25° C. to 500° C. at 10° C./min and holding at 500° C. for 10 minutes, to an area of the first layer before the heat treatment, is 15% or more.
3 more elements
Dependencies are inferred from the claim text.