Battery pack, vehicle and energy storage device
AssigneeBYD Company Limited
InventorsXi Jiang, Yi Pan
Life of this patent
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Abstract
A battery pack, a vehicle and an energy storage device. The battery pack includes at least one battery sequence. The battery sequence includes a plurality of batteries. At least one of the batteries includes a casing and a core packaged in the casing. A gap exists between two neighboring batteries. A ratio of the gap to the thickness of the battery is c, and c satisfies the following relational expression: (a−b)<c<(a×t), where a represents an expansion rate of the battery; b represents a compression rate of the core; and t represents a ratio in percentage of a thickness of the battery after effective compression to a thickness of the battery before compression.
Claims20
A battery pack, comprising a plurality of batteries, wherein:
- a thickness of each battery extends along a first direction,
- the plurality of batteries are successively arranged along the first direction to form a battery sequence,
- each of the plurality of batteries comprises a casing and a core in the casing,
- a gap exists between two neighboring batteries, and
- a ratio of the gap to the thickness of each battery is c, and c satisfies the following relational expression:
- (a−b)<c<(a×t), wherein:
- a represents an expansion rate of each battery;
- b represents a compression rate of the core in the casing of each of the plurality of batteries;
- and
- t represents a ratio in percentage of a thickness of each battery after effective compression to a thickness of each battery before compression.
A battery pack, comprising a plurality of batteries arranged in a sequence in a thickness direction of each battery, each battery including a casing and a core within the casing, wherein:
- two neighboring batteries have a gap, a ratio of the gap to a thickness of each battery is c, and c satisfies the following relational expression:
- (a−b)<c<(a×t), wherein:
- a represents an expansion rate of each battery;
- b represents a compression rate of the core within the casing of each battery;
- and
- t represents a ratio in percentage of a thickness of each battery after effective compression to a thickness of each battery before compression.
Dependencies are inferred from the claim text.