Battery, battery module, battery pack, and electric vehicle
AssigneeBYD Company Limited
InventorsYan Zhu, Shichao Hu
Life of this patent
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Abstract
A battery, a battery module, a battery pack, and an electric vehicle are provided. The battery includes a metal housing, a packaging member, and multiple electrode core assemblies. The packaging member includes two packaging portions that are arranged opposite to each other. The two packaging portions are joined at a predetermined position to divide the internal space of the packaging member into multiple sealed accommodating cavities. At least one sealed accommodating cavity is provided with one of the electrode core assemblies. The metal housing is sleeved outside the packaging member.
Claims25
A battery, comprising a metal housing, a packaging member, and a plurality of electrode core assemblies;
- wherein:
- the packaging member comprises two packaging portions that are arranged opposite to each other;
- the two packaging portions are joined at a plurality of positions to divide an internal space of the packaging member into a plurality of sealed accommodating cavities;
- each of the two packaging portions is formed integrally as a single piece;
- and at least one of the sealed accommodating cavities is provided with one of the electrode core assemblies;
- and
- the metal housing is sleeved outside the packaging member, the metal housing has two opposite first surfaces, and a concave corresponding to each of the sealed accommodating cavities is formed on at least one of the two first surfaces of the metal housing.
A battery pack, comprising a battery array, wherein:
- the battery array comprises a plurality of batteries, and each of the batteries comprises a metal housing, a packaging member, and a plurality of electrode core assemblies;
- a thickness of each of the batteries extends in a second direction, and the plurality of batteries are arranged in the second direction to form the battery array;
- and a gap is provided between two adjacent batteries, and a ratio of the gap to the thickness of each of the batteries ranges from 0.001 to 0.15;
- the packaging member comprises two packaging portions that are arranged opposite to each other, the two packaging portions are joined at a plurality of positions to divide an internal space of the packaging member into a plurality of sealed accommodating cavities, each of the two packaging portions is formed integrally as a single piece, and at least one of the sealed accommodating cavities is provided with one of the electrode core assemblies;
- and
- the metal housing is sleeved outside the packaging member.
Dependencies are inferred from the claim text.