Top cover assembly, battery cell, battery module and manufacturing methods therefor
AssigneeJiangsu Contemporary Amperex Technology Limited
InventorsYuyong Lei, Chengyou Xing, Peng Wang
Life of this patent
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Abstract
A top cover assembly of a battery cell, a battery cell, and a battery module. The top cover assembly of the battery cell includes: a separator plate and a top cover assembly. The separator plate is provided with sampling channel(s) for accommodating a sampling member. The top cover plate is configured for sealing an electrode assembly of the battery cell into the battery housing, where the top cover plate is provided below the separator plate, and the separator plate is fixed to the top cover plate.
Claims18
A top cover assembly, for a battery cell, comprising:
- a separator plate, wherein the separator plate is provided with sampling channel(s) for accommodating a sampling member;
- and
- a top cover plate, wherein the top cover plate is configured to seal an electrode assembly of the battery cell into a battery housing,
- wherein the top cover plate is provided below the separator plate, and the separator plate is fixed to the top cover plate;
- wherein the separator plate comprises a first plate and a second plate, the first plate and the second plate both extend along a widthwise direction and are disposed opposite each other along a lengthwise direction, and the sampling channel(s) is formed between the first plate and the second plate;
- the sampling channel(s) is disposed on an upper surface of the separator plate, a recess is disposed on a lower surface of the separator plate, the recess is disposed opposite an explosion-proof valve of the battery cell, and the recess extends along a widthwise direction.
A battery cell, comprising:
- a battery housing, with an opening;
- an electrode assembly, accommodated in the battery housing;
- and
- a top cover assembly, comprising:
- a separator plate, wherein the separator plate is provided with sampling channel(s) for accommodating a sampling member;
- and
- a top cover plate, wherein the top cover plate is configured to seal an electrode assembly of the battery cell into a battery housing,
- wherein the top cover plate is provided below the separator plate, and the separator plate is fixed to the top cover plate, and the top cover assembly covers the opening;
- wherein the separator plate comprises a first plate and a second plate, the first plate and the second plate both extend along a widthwise direction and are disposed opposite each other along a lengthwise direction, and the sampling channel(s) is formed between the first plate and the second plate;
- the sampling channel(s) is disposed on an upper surface of the separator plate, a recess is disposed on a lower surface of the separator plate, the recess is disposed opposite an explosion-proof valve of the battery cell, and the recess extends along a widthwise direction.
A manufacturing method for a top cover assembly, comprising following steps:
- providing a separator plate and a top cover plate configured to seal an electrode assembly of a battery cell into a battery housing;
- wherein a pole is disposed on the top cover plate, a pole through hole and sampling channel(s) for accommodating a sampling member are disposed on the separator plate;
- covering the separator plate on the top cover plate, so that the pole through hole of the separator plate penetrates the pole of the top cover plate;
- and
- fixing the separator plate to the top cover plate to obtain a top cover assembly;
- wherein the separator plate comprises a first plate and a second plate, the first plate and the second plate both extend along a widthwise direction and are disposed opposite each other along a lengthwise direction, and the sampling channel(s) is formed between the first plate and the second plate.
Dependencies are inferred from the claim text.