Battery, electric device, and method and device for manufacturing battery
A battery, an electric device, and a method and device for manufacturing battery are provided. The battery includes: a battery cell; a support for supporting the battery cell; and a box for accommodating the support and the battery cell. The support separates the box into a first chamber and a second chamber. The first chamber is configured to accommodate a first portion of the battery cell, the first portion is provided with a pressure relief mechanism. The second chamber is configured to accommodate a second portion of the battery cell and a binder In the second chamber, the second portion, the support, and the box are fixedly connected through the binder. The pressure relief mechanism actuates when internal pressure of the battery cell reaches a threshold to release the internal pressure.
1 . A battery, comprising:
a battery cell;
a support configured to support the battery cell; and
a box configured to accommodate the support and the battery cell;
wherein
the support separates the box into two first chambers and a second chamber;
the battery cell comprises two first portions at two ends of the battery cell, and a second portion in the middle of the battery cell;
the first chambers are configured to accommodate the first portions of the battery cell, respectively, and one of the first portions is provided with a pressure relief mechanism configured to be actuated when internal pressure of the battery cell reaches a threshold;
the second chamber is configured to accommodate the second portion of the battery cell and a binder, and in the second chamber, the second portion, the support, and the box are fixedly connected through the binder;
the support comprises a first wall and a second wall opposite the first wall, a second opening is provided in the first wall, and a third opening is provided in the second wall; and
the battery cell passes through the second opening and the third opening, with the second portion being located inside the support between the second opening and the third opening, and the first portions being located outside of the second opening and the third opening, respectively.
2 . The battery according to claim 1 , wherein the support is provided with a first opening, the first opening communicates with the second chamber, and the first opening is configured for injecting the binder into the second chamber.
3 . The battery according to claim 1 , wherein the support is provided with a binder damper structure, the binder damper structure is configured to prevent the binder in the second chamber from entering the first chambers.
4 . The battery according to claim 3 , wherein the binder damper structure is a first limiting slot, a first limiting strip corresponding to the first limiting slot is provided on the inner surface of a wall of the box, and the first limiting strip is stuck into the first limiting slot, so as to prevent the binder in the second chamber from entering the first chambers.
5 . The battery according to claim 4 , wherein a second limiting strip corresponding to the first limiting strip is further provided on the inner surface of the wall of the box, the first limiting strip and the second limiting strip form a second limiting slot, and one of side walls of the first limiting slot is stuck into the second limiting slot, so as to prevent the binder in the second chamber from entering the first chambers.
6 . The battery according to claim 1 , wherein the second opening and/or the third opening are/is provided with an enclosing structure, the enclosing structure is perpendicular to the first wall or the second wall and extends towards the outside of the support, and the enclosing structure is configured to support the battery cell.
7 . The battery according to claim 1 , wherein the first wall is perpendicular to a bottom wall of the box.
8 . The battery according to claim 1 , wherein one of the first portions is further provided with an electrode terminal, the electrode terminal is electrically connected to a busbar, and the first chamber is further configured to accommodate the busbar.
9 . The battery according to claim 8 , further comprising:
a circuit board assembly,
wherein the busbar is provided on the circuit board assembly, and the first chamber is further configured to accommodate the circuit board assembly; and
wherein the circuit board assembly is provided with a through hole, the support is provided with a limiting post, and the limiting post cooperates with the through hole to limit the circuit board assembly.
10 . The battery according to claim 9 , wherein a boss is provided at an end of the limiting post farther away from the support, the boss has a radial dimension smaller than the rest of the limiting post, and the through hole has a dimension larger than the boss but smaller than the rest of the limiting post, so as to limit the circuit board assembly.
11 . The battery according to claim 1 , wherein a first buckle is provided on the support, and a second buckle is provided on a side wall of the box, the first buckle and the second buckle cooperate with each other to secure the support in the box.
12 . The battery according to claim 1 , wherein the battery cell is a cylindrical battery cell, each of the first portions comprises an end surface of the cylindrical battery cell, and the pressure relief mechanism is provided on one end surface of the cylindrical battery cell.
13 . The battery according to claim 1 , wherein a profiling structure is provided on the inner surface of a bottom wall of the box, the profiling structure is located in the second chamber, a surface of the profiling structure facing toward the second portion is attached to the second portion, and the profiling structure is configured to fill a space between the second portion and the bottom wall of the box.
14 . An electric device, comprising the battery according to claim 1 , wherein the battery is configured to supply electric energy.
15 . A method for manufacturing a battery, comprising:
providing a battery cell;
providing a support, wherein the support is configured to support the battery cell; and
providing a box, wherein the box is configured to accommodate the support and the battery cell;
wherein
the support separates the box into two first chambers and a second chamber;
the battery cell comprises two first portions at two ends of the battery cell, and a second portion in the middle of the battery cell;
the first chambers are configured to accommodate the first portions of the battery cell, respectively, and one of the first portions is provided with a pressure relief mechanism configured to be actuated when internal pressure of the battery cell reaches a threshold;
the second chamber is configured to accommodate the second portion of the battery cell and a binder, and in the second chamber, the second portion, the support, and the box are fixedly connected through the binder;
the support comprises a first wall and a second wall opposite the first wall, a second opening is provided in the first wall, and a third opening is provided in the second wall; and
the battery cell passes through the second opening and the third opening, with the second portion being located inside the support between the second opening and the third opening, and the first portions being located outside of the second opening and the third opening, respectively.
16 . A device for manufacturing a battery, comprising:
a first provision module configured to provide a battery cell;
a second provision module configured to provide a support, wherein the support is configured to support the battery cell; and
a third provision module configured to provide a box;
wherein the box is configured to accommodate the support and the battery cell;
wherein
the support separates the box into two first chambers and a second chamber;
the battery cell comprises two first portions at two ends of the battery cell, and a second portion in the middle of the battery cell;
the first chambers are configured to accommodate the first portions of the battery cell, respectively, and one of the first portions is provided with a pressure relief mechanism configured to be actuated when internal pressure of the battery cell reaches a threshold;
the second chamber is configured to accommodate the second portion of the battery cell and a binder, and in the second chamber, the second portion, the support, and the box are fixedly connected through the binder;
the support comprises a first wall and a second wall opposite the first wall, a second opening is provided in the first wall, and a third opening is provided in the second wall; and
the battery cell passes through the second opening and the third opening, with the second portion being located inside the support between the second opening and the third opening, and the first portions being located outside of the second opening and the third opening, respectively.