CN-121986405-A - Battery and electric equipment

Abstract

The battery (100) comprises a box body (10), first battery cells (30) and second battery cells (40), wherein a plurality of first battery cells (30) are arranged along a first direction (X) to form a first battery cell group (301), the first battery cells (30) comprise first straight parts (31) and first bending parts (32) which are positioned at two opposite ends of the first straight parts (31) along a second direction (Y), a first gap (33) is formed between two adjacent first bending parts (32) in the first direction (X), and parts of the second battery cells (40) are arranged in the first gap (33) in the second direction (Y). In the second direction (Y), the second battery cells (40) and the first battery cell group (301) are closely arranged, and the size of the box body (10) in the second direction (Y) can be reduced.

Inventors

• LIU HUANJI

Assignees

• 宁德时代新能源科技股份有限公司

Dates

Publication Date

20260505

Application Date

20240719

Claims (18)

1. A battery is characterized by comprising The box body is internally provided with a containing cavity; The first battery unit comprises a first straight part and a first bending part connected to at least one end of the first straight part along a second direction, wherein the first direction is perpendicular to the second direction, a first gap is formed between the first bending parts of two adjacent first battery units along the first direction, and And the second battery monomer is arranged on at least one side of the first battery monomer group in the second direction, and part of the second battery monomer is arranged in the first gap.
2. The battery of claim 1, wherein a plurality of the second battery cells are sequentially arranged along the first direction to form a second battery cell group, and in the second direction, the first battery cell group and the second battery cell group are sequentially arranged, and at least part of the second battery cells in the second battery cell group are arranged in the corresponding first gaps.
3. The battery of claim 2, wherein the second cell is a cylindrical cell.
4. The battery of claim 2, wherein the second battery cell comprises a second straight portion and a second bent portion connected to at least one end of the second straight portion in the second direction, at least a portion of the second bent portion being disposed in the first gap; in the first direction, a second gap is formed between two adjacent second bending parts; at least part of the first bending part is arranged in the second gap formed by the adjacent second battery cell groups.
5. The battery of claim 4, wherein at least two adjacent first straight portions are bonded in the first direction and/or at least two adjacent second straight portions are bonded in the first direction.
6. The battery of claim 4 or 5, wherein at least two adjacent first straight portions are spaced apart in the first direction and/or at least two adjacent second straight portions are spaced apart in the first direction.
7. The battery of claim 6, further comprising a buffer structure disposed between two adjacent first straight portions spaced apart in the first direction, and/or the buffer structure is disposed between two adjacent second straight portions spaced apart in the first direction.
8. The battery according to any one of claims 4 to 7, wherein the second bending portion abuts against at least one of the first bending portions at the same first gap.
9. The battery according to any one of claims 4 to 7, wherein the second bending portion is spaced apart from at least one of the first bending portions at the same first gap.
10. The battery according to claim 1 or 2, wherein the second battery cell abuts against at least one of the first bent portions at the same first gap.
11. The battery according to claim 1 or 2, wherein the second battery cell is spaced apart from at least one of the first bent portions at the same first gap.
12. The battery of claim 9, wherein adjacent two of the first straight portions are spaced apart from each other in the first direction, and adjacent two of the second straight portions are spaced apart from each other in the first direction, and the second bent portion is spaced apart from one of the two first bent portions at the same first gap, and the second bent portion abuts against the other of the two first bent portions at the same first gap.
13. The battery of claim 12, further comprising a liquid cooling structure disposed between adjacent two of the spaced apart first straight portions, adjacent two of the spaced apart first and second bent portions, and adjacent two of the spaced apart second straight portions.
14. The battery of claim 2, wherein the first battery cell group forms a third gap between one side in the first direction and an inner wall surface of the case, and/or the second battery cell group forms a fourth gap between the other side in the first direction and the inner wall surface of the case.
15. The battery of claim 14, further comprising at least one of a temperature sensor, an internal pressure sensor, and a pressure sensor disposed in the third gap and/or the fourth gap.
16. The battery of claim 14 or 15, wherein a pressure relief mechanism is further provided on the case, the pressure relief mechanism being located at the third gap and/or the fourth gap.
17. The battery of claim 2, wherein two adjacent first battery cells are connected by a first electrical connection structure, two adjacent second battery cells are connected by a second electrical connection structure, and the first battery cells are connected with two adjacent second battery cells by a third electrical connection structure.
18. A powered device comprising a battery as claimed in any one of claims 1 to 17 for providing electrical energy.

Description

Battery and electric equipment Technical Field The application relates to the technical field of battery structures, in particular to a battery and electric equipment. Background Batteries are widely applied in the field of new energy, such as electric automobiles, new energy automobiles and the like, and the new energy automobiles and the electric automobiles have become new development trends of automobile industry. The battery comprises a box body, and battery monomers and other components accommodated in the box body, wherein the arrangement of the battery monomers has a large influence on the volume of the box body, so that how to more closely arrange the battery monomers to reduce the size of the box body is a technical problem to be solved in the battery technology. Content of the application The embodiment of the application aims to provide a battery and electric equipment, and the size of a box body is reduced by closely arranging battery monomers. In order to achieve the above purpose, the technical scheme adopted by the embodiment of the application is as follows: In a first aspect, an embodiment of the application provides a battery, which comprises a box body, first battery monomers and second battery monomers, wherein a containing cavity is formed in the box body, a plurality of first battery monomers are sequentially arranged along a first direction to form a first battery monomer group, each first battery monomer comprises a first straight part and a first bending part connected to at least one end of the first straight part along a second direction, the first direction is perpendicular to the second direction, a first gap is formed between the first bending parts of two adjacent first battery monomers in the first direction, the second battery monomers are arranged on at least one side of the first battery monomer group in the second direction, and a part of each second battery monomer is arranged in the first gap. The battery provided by the embodiment of the application has the beneficial effects that the first battery monomers can be sequentially arranged along the first direction to form the first battery monomer group, and the first bent parts of two adjacent first battery monomers in the first direction form the first gap, so that the part of the second battery monomer positioned on at least one side of the first battery monomer group in the second direction can be arranged in the first gap, therefore, the arrangement between the second battery monomer and the first battery monomer group in the second direction is more compact, the arrangement space occupied by the second battery monomer and the first battery monomer group is effectively reduced, and the size of the box body in the second direction can be correspondingly reduced. In some embodiments, the plurality of second battery cells are sequentially arranged along the first direction and form a second battery cell group, and in the second direction, the first battery cell group and the second battery cell group are sequentially arranged, and at least part of the second battery cells in the second battery cell group are arranged in the corresponding first gaps. Through adopting foretell technical scheme, a plurality of second battery monomer can arrange along first direction and form second battery monomer group, and second battery monomer group and first battery monomer group arrange along the second direction to under the circumstances that at least part second battery monomer in second battery monomer group set up in corresponding first clearance, first battery monomer group and second battery monomer group arrange compacter in the second direction, and first battery monomer group and second battery monomer group are arranged the space that occupies in the second direction can effectively reduce, consequently the box size in the second direction also can correspondingly reduce. In some embodiments, the second cell is a cylindrical cell. By adopting the technical scheme, the parts of the cylindrical battery monomers in the second direction can be arranged in the first gap, and meanwhile, after the plurality of cylindrical battery monomers are distributed along the first direction to form a second battery monomer group, gaps can be formed between the adjacent cylindrical battery monomers, so that the parts of the first bending parts in the second direction can be arranged in the gaps of the cylindrical battery monomers, and the size of the box body in the second direction can be further reduced. In some embodiments, the second battery unit comprises a second straight part and a second bending part connected to at least one end of the second straight part along a second direction, at least part of the second bending part is arranged in the first gap, a second gap is formed between two adjacent second bending parts along the first direction, and at least part of the first bending part is arranged in the second gap formed by the adj