Search

CN-224217648-U - Battery monomer and battery package

CN224217648UCN 224217648 UCN224217648 UCN 224217648UCN-224217648-U

Abstract

The application provides a battery monomer and a battery pack, and relates to the technical field of batteries. The battery unit has a first direction and comprises a shell with a containing cavity, a cover plate connected with the shell to cover the containing cavity, an electrode assembly arranged in the containing cavity, a first pole penetrating through the cover plate and electrically connected with the electrode assembly, a second pole penetrating through the cover plate and electrically connected with the electrode assembly, an explosion-proof valve arranged on the shell, and a circuit board positioned on one side of the cover plate away from the electrode assembly along the first direction. The circuit board is electrically connected with the first pole and the second pole. The battery monomer provided by the application enables the circuit board and the explosion-proof valve to be far away from each other, thereby reducing the interference of the explosion-proof valve on the circuit board and improving the reliability and stability of the circuit board.

Inventors

  • WANG SHUNSHUN
  • HU CHUNBO
  • YANG WEI
  • XU ZHONGLING

Assignees

  • 欣旺达动力科技股份有限公司

Dates

Publication Date
20260508
Application Date
20250425

Claims (10)

  1. 1. A battery cell having a first direction (Z), the battery cell comprising: a housing (100) having a receiving chamber (110); a cover plate (200) connected with the housing (100) to cover the accommodating chamber (110); An electrode assembly (300) disposed within the receiving chamber (110); A first pole (400) penetrating through the cover plate (200) and electrically connected with the electrode assembly (300); a second pole (800) penetrating through the cover plate (200) and electrically connected with the electrode assembly (300); An explosion-proof valve (500) provided on the housing (100); And a circuit board (600) which is positioned at one side of the cover plate (200) facing away from the electrode assembly (300) along the first direction (Z) and is electrically connected with the first pole (400) and the second pole (800).
  2. 2. The battery cell of claim 1, wherein the cover plate (200) and the explosion-proof valve (500) are disposed opposite in the first direction (Z).
  3. 3. The battery cell of claim 1, wherein the circuit board (600) includes a first connector (620), a plate (610), and a second connector (630) connected in sequence, the plate (610) being located between the first pole (400) and the second pole (800), the first connector (620) being connected to the first pole (400), the second connector (630) being connected to the second pole (800).
  4. 4. The battery cell of claim 3, wherein the first electrode post (400) includes a first electrode post (410) and a second electrode post (420), the first electrode post (410) is disposed through the cover plate (200) and is electrically connected to the electrode assembly (300), the second electrode post (420) is disposed on a side of the cover plate (200) facing away from the electrode assembly (300) along the first direction (Z), the second electrode post (420) includes a first electrode post portion (421) and a first protruding portion (422) that are connected, the first electrode post portion (421) is connected to the first electrode post (410), and the first protruding portion (422) is disposed on a side of the first electrode post portion (421) that is adjacent to the plate body (610) and is connected to the first connecting member (620).
  5. 5. The battery cell of claim 4, wherein a side of the first post portion (421) facing away from the cover plate (200) along the first direction (Z) is a first plane (4211), a side of the first protrusion (422) facing away from the cover plate (200) along the first direction (Z) is a second plane (4221), a distance from the first plane (4211) to the cover plate (200) is greater than a distance from the second plane (4221) to the cover plate (200), and the first connection member (620) is connected to the second plane (4221).
  6. 6. The battery cell of claim 5, wherein a distance from the first plane (4211) to the second plane (4221) is greater than a dimension of the first connector (620) along the first direction (Z).
  7. 7. The battery cell of claim 5, further comprising an insulator (700), the insulator (700) comprising a first insulator (720) and a second insulator (730) connected, the first insulator (720) being disposed between the cap plate (200) and the second pole body (420), the second insulator (730) being disposed on a side of the cap plate (200) facing away from the electrode assembly (300) and on a side of the first insulator (720) adjacent to the plate (610), the plate (610) being connected to the first insulator (720).
  8. 8. The battery cell according to claim 7, wherein a side of the first insulating portion (720) facing away from the cap plate (200) is provided with a recess (721), and a portion of the first post portion (421) and a portion of the first protruding portion (422) are located within the recess (721).
  9. 9. The battery cell according to claim 7, wherein a side of the second insulating portion (730) facing away from the cover plate (200) along the first direction (Z) is a third plane (731), a distance from the third plane (731) to the cover plate (200) is smaller than a distance from the second plane (4221) to the cover plate (200), and the third plane (731) abuts against a side of the plate body (610) facing toward the cover plate (200).
  10. 10. A battery pack comprising the battery cell according to any one of claims 1 to 9.

Description

Battery monomer and battery package Technical Field The application relates to the technical field of batteries, in particular to a battery monomer and a battery pack. Background The information disclosed in this background section is only for enhancement of understanding of the general background of the disclosure and is not to be taken as an admission or any form of suggestion that this information forms the prior art that is well known to a person skilled in the art. A circuit board is generally configured in the battery cell adopting the intelligent technology, so that the battery cell is subjected to full life cycle data acquisition through the circuit board, and therefore, the possible safety risk and reliability risk are predicted and avoided in advance. However, the existing explosion-proof valve in the battery cell easily interferes with the normal implementation of the function of the circuit board when implementing the exhaust function thereof, thereby affecting the reliability and stability of the circuit board. Disclosure of utility model Therefore, the application aims to provide a battery cell and a battery pack, and aims to solve the technical problem that an explosion-proof valve easily interferes with normal implementation of functions of a circuit board, so that reliability and stability of the circuit board are affected. In order to achieve the above purpose, the technical scheme adopted by the application is as follows: In a first aspect, embodiments of the present application provide a battery cell having a first direction, the battery cell comprising: a housing having a receiving cavity; A cover plate connected with the shell to cover the accommodating cavity; An electrode assembly disposed in the receiving chamber; The first pole is arranged through the cover plate and is electrically connected with the electrode assembly; the second pole penetrates through the cover plate and is electrically connected with the electrode assembly; The explosion-proof valve is arranged on the shell; And the circuit board is positioned on one side of the cover plate, which is away from the electrode assembly along the first direction, and is electrically connected with the first pole and the second pole. In one embodiment of the first aspect, the cover plate and the explosion proof valve are disposed opposite in the first direction. In one embodiment of the first aspect, the circuit board includes a first connecting member, a board body and a second connecting member connected in sequence, the board body is located between the first pole and the second pole, the first connecting member is connected with the first pole, and the second connecting member is connected with the second pole. In one embodiment of the first aspect, the first pole includes a first pole body and a second pole body, the first pole body is disposed through the cover plate and is electrically connected with the electrode assembly, the second pole body is located on a side, away from the electrode assembly, of the cover plate along the first direction, the second pole body includes a first pole body portion and a first protruding portion, the first pole body portion is connected with the first pole body, and the first protruding portion is located on a side, close to the plate body, of the first pole body portion and is connected with the first connecting piece. In one embodiment of the first aspect, a side of the first pole portion facing away from the cover plate along the first direction is a first plane, a side of the first protruding portion facing away from the cover plate along the first direction is a second plane, a distance from the first plane to the cover plate is greater than a distance from the second plane to the cover plate, and the first connecting piece is connected with the second plane. In one embodiment of the first aspect, the distance from the first plane to the second plane is greater than the dimension of the first connector in the first direction. In one embodiment of the first aspect, the battery cell further includes an insulating member, the insulating member includes a first insulating portion and a second insulating portion that are connected, the first insulating portion is disposed between the cover plate and the second pole body, the second insulating portion is disposed on a side of the cover plate facing away from the electrode assembly, and is located on a side of the first insulating portion, which is close to the plate body, and the plate body is connected with the first insulating portion. In one embodiment of the first aspect, a groove is provided on a side of the first insulating portion facing away from the cover plate, and a portion of the first pole portion and a portion of the first protruding portion are located in the groove. In one embodiment of the first aspect, a side of the second insulating portion facing away from the cover plate along the first direction is a third plane, a dist