CN207896173U - Battery modules - Google Patents
Battery modules Download PDFInfo
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- CN207896173U CN207896173U CN201820401259.0U CN201820401259U CN207896173U CN 207896173 U CN207896173 U CN 207896173U CN 201820401259 U CN201820401259 U CN 201820401259U CN 207896173 U CN207896173 U CN 207896173U
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- output stage
- battery modules
- end plate
- elastic portion
- stage pedestal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
This application involves energy storage device technical fields, more particularly to a kind of battery modules, including end plate, output stage pedestal, the first limit assembly, first limit assembly includes mutually matched card slot and elastic portion, in the card slot and the elastic portion, one is set to the end plate, and another one is set to the output stage pedestal；The elastic portion at least has the elastic force along the direction of the installation direction perpendicular to the output stage pedestal, and the short transverse of the installation direction and the battery modules is in non-zero included angle.The application can limit the relative displacement between output stage pedestal and end plate in the height direction, to avoid causing very much battery output stage to shake seriously greatly relative to the displacement of end plate due to output stage pedestal, improve the connection reliability between connecting plate and pole between battery output stage and connecting plate, and the connection reliability of battery output stage and sampling aluminium wire, improve the reliability of battery modules.
Description
Technical field
This application involves energy storage device technical field more particularly to a kind of battery modules.
Background technology
Battery modules generally include battery cell, end plate, output stage pedestal, battery output stage and module output stage, end plate
For compressing multiple battery cells, the pole of battery cell is connect by connecting plate with battery output stage, output stage pedestal peace
Loaded on end plate, battery output stage and module output stage are connect by screw with output stage pedestal, and battery output stage and mould
Group output stage electrical connection, to which the electric signal in battery modules is sent to battery mould by battery output stage, module output stage
Group is external.In general, end plate is that plane contact or end plate are provided with rectangular channel with output stage pedestal, output stage pedestal is along battery
The short transverse of module is inserted into rectangular channel.
However, during assembling process or use, battery modules can be vibrated, and output stage pedestal is relative to end plate
It is easily subjected to displacement in the short transverse of battery modules, if the displacement of output stage pedestal is too big, battery output stage can be driven to send out
It is raw to shake, cause the connection between battery output stage and connecting plate or between connecting plate and pole to disconnect；And battery output stage
It is also connect with sampling aluminium wire often through bonding pattern, when battery output stage shakes, also easily causes itself and sampling aluminium
Silk disconnects, to influence the reliability of battery modules.
Utility model content
This application provides a kind of battery modules, can solve the above problems.
This application provides a kind of battery modules, including end plate, output stage pedestal, the first limit assembly,
First limit assembly includes mutually matched card slot and elastic portion, in the card slot and the elastic portion, one
Person is set to the end plate, and another one is set to the output stage pedestal；
The elastic portion at least has the elastic force along the direction of the installation direction perpendicular to the output stage pedestal, described
The short transverse of installation direction and the battery modules is in non-zero included angle.
Optionally, the elastic portion is buckle.
Optionally, the buckle is set to the output stage pedestal along the upstream end of the installation direction.
Optionally, the card slot is partly oppositely arranged with the elastic portion in the short transverse, described defeated to limit
Go out degree of freedom of the pole pedestal in the short transverse.
Optionally, further include the second limit assembly, second limit assembly includes limiting slot and limiting section, the limit
In slot and the limiting section, one is set to the end plate, and another one is set to the output stage pedestal；The limiting slot is along institute
The length direction recess of end plate, the limiting slot and limiting section limit cooperation are stated, to limit the output stage pedestal in institute
State the degree of freedom in short transverse；Wherein, the length direction is vertical with the short transverse, and with the installation direction in non-
Zero angle.
Optionally, the end plate is with the output stage pedestal, and one is provided with depressed area, and another one, which is provided with, to be plugged in
The installation protrusion of the depressed area；
The limiting slot and the card slot may be contained within the depressed area；The limiting section may be contained with the elastic portion
The installation protrusion.
Optionally, the output stage pedestal further includes the body part being connect with the installation protrusion, and the installation protrusion is even
The one end for connecing the body part has the sunk structure being recessed relative to the elastic portion and the body part, the elastic portion
It is set to the sunk structure.
Optionally, the depressed area is set to the end plate, and the installation protrusion is set to the output stage pedestal.
Optionally, the depressed area also has the first confined planes；The output stage pedestal has the second confined planes；Described
One confined planes lean with second confined planes along the installation direction.
Optionally, along the length direction of the end plate, the both sides of the output stage pedestal are both provided with second limit
Component.
Technical solution provided by the present application can reach following advantageous effect：
Battery modules provided herein, on output stage pedestal and end plate, one is provided with card slot, another one setting
Flexible portion, elastic portion are engaged by clamping with card slot, by the extrusion fit of elastic portion and card slot, to increase output stage pedestal and end
Frictional force between plate, so limit output stage pedestal battery modules degree of freedom in the height direction, in this way, in battery
In module assembling process or during use, even if battery modules can limit output stage pedestal and end plate if vibration
Between relative displacement in the height direction, to avoid the displacement due to output stage pedestal relative to end plate from causing very much battery greatly
Output stage shakes serious, the connection reliability between raising battery output stage and connecting plate between connecting plate and pole, and
The connection reliability of battery output stage and sampling aluminium wire, improves the reliability of battery modules.
It should be understood that above general description and following detailed description is merely exemplary, this can not be limited
Application.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of specific embodiment of battery modules provided herein；
Fig. 2 is the structure of a kind of specific embodiment of end plate and output stage pedestal in battery modules provided herein
Schematic diagram；
Fig. 3 is the partial enlarged view at I in Fig. 2；
Fig. 4 is the structural schematic diagram of end plate in embodiment illustrated in fig. 2；
Fig. 5 is the partial enlarged view at II in Fig. 4；
Fig. 6 is the partial view at another visual angle of Fig. 4 middle-end harden structures；
Fig. 7 is the structural schematic diagram at a visual angle of output stage pedestal in embodiment illustrated in fig. 2；
Fig. 8 is the structural schematic diagram at another visual angle of output stage pedestal in embodiment illustrated in fig. 2.
Reference numeral：
10- end plates；
11- card slots；
12- limiting slots；
The depressed areas 13-；
131- the first side walls；
132- second sidewalls；
The first confined planes of 133-；
20- output stage pedestals；
21- elastic portions；
22- limiting sections；
23- installation protrusions；
24- body parts；
The second confined planes of 25-；
30- battery output stages；
40- module output stages；
50- side plates.
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and the principle together with specification for explaining the application.
Specific implementation mode
It is described in further detail below by specific embodiment and in conjunction with attached drawing to the application.With Fig. 1 institutes in text
The placement location for the battery modules shown is that object establishes X-Y-Z rectangular coordinate systems, using the short transverse of battery modules as height side
To Z, the thickness direction of end plate is thickness direction X, and the length direction of end plate is length direction Y.
As shown in figures 1-8, the embodiment of the present application provides a kind of battery modules, including end plate 10,20 and of output stage pedestal
First limit assembly, the first limit assembly include mutually matched card slot 11 and elastic portion 21, in card slot 11 and elastic portion 21, one
Person is set to end plate 10, and another one is set to output stage pedestal 20, that is to say, that card slot 11, output stage can be arranged with end plate 10
Elastic portion 21 is arranged in pedestal 20；Or elastic portion 21 is arranged in end plate 10, card slot 11 is arranged in output stage pedestal 20.Wherein, elastic portion
21 at least have the elastic force along the direction of the installation direction perpendicular to output stage pedestal 20, and the installation direction and battery modules
Short transverse Z be in non-zero included angle, that is to say, that output stage pedestal 20 can be installed on along perpendicular to the direction of short transverse Z
End plate 10 can also be installed on end plate 10 along relative to the inclined directions short transverse Z.
It is to be appreciated that battery modules further include side plate 50, multiple battery cell (not shown)s, battery output stage 30
With module output stage 40, side plate 50 is connect with end plate 10, forms shell；Multiple battery cell series, parallel or connection in series-parallel, and
It is set in shell, the pole of battery cell is electrically connected by connecting plate with battery output stage 30, battery output stage 30 and module
Output stage 40 is all connected to output stage pedestal 20, can be passed through with battery output stage 30, module output stage 40 and output stage pedestal 20
It is same to be bolted in end plate 10, as shown in Figure 1-Figure 3.In addition, in order to be monitored to each battery cell in battery modules, electricity
Pond output stage 30 is also connect by sampling the structures such as aluminium wire with sample circuit in battery modules.
Above-mentioned battery modules, when output stage pedestal 20 is installed on end plate 10, card slot 11 is engaged by clamping with elastic portion 21, by
On direction of extrusion Y there is larger extruding force therefore to increase output stage pedestal 20 and end plate in card slot 11 and elastic portion 21
Frictional force between 10, and then output stage pedestal 20 and relative displacement of the end plate 10 on short transverse Z are limited, in this way, in electricity
In the module assembling process of pond or during use, exist even if battery modules can limit output stage pedestal 20 if vibration
Movement on short transverse Z, to avoid the displacement due to output stage pedestal 20 relative to end plate 10 from causing battery to export greatly very much
Pole 30 is seriously shaken, and ensures the connection reliability between battery output stage 30 and connecting plate, between connecting plate and pole, Yi Jibao
The connection reliability for demonstrate,proving battery output stage 30 and sampling aluminium wire, improves the reliability of battery modules.
It should be noted that when installation direction is perpendicular to short transverse Z, installation direction can be the thickness side of end plate 10
Can also be in an acute angle with thickness direction X to X.Wherein, Fig. 1-8 shows that installation direction is the embodiment of thickness direction X, at this time
Elastic portion 21 at least has the elastic force of Y along its length.
When battery modules are vibrated, it is also possible to the displacement of 20 through-thickness X and length direction Y of output stage pedestal are caused,
Battery output stage 30 may be caused to be disconnected with pole, sample circuit, influence the reliability of battery modules.And in the application, elasticity
Portion 21 and card slot 11 can limit the degree of freedom of the Y along its length of output stage pedestal 20 by being squeezed in length direction Y；
And the frictional force of elastic portion 21 and card slot 11, it is not restricted to, along short transverse Z, in the thickness direction X of end plate 10 also have
Frictional force, therefore, above-mentioned battery module structure, additionally it is possible to the degree of freedom to output stage pedestal 20 in thickness direction X limits,
To further decrease displacement of the output stage pedestal 20 relative to end plate 10, the reliability of battery modules is improved.
Above-mentioned elastic portion 21 can be elastomer block, i.e., the material of elastic portion 21 be elastic material, such as rubber block, certainly, bullet
Property portion 21 can also include main body and clad, clad is coated on the outside of main body, to form flexible structure,
In, main body can be plastic part, and clad can be rubber layer, and when battery modules are assembled, elastomer block is inserted into card slot 11,
This mode, card slot 11 and the frictional force of elastomer block are larger, can preferably limit the displacement of output stage pedestal 20, improve battery
The reliability of module；And the elastic portion 21 of this elastic material, additionally it is possible to the vibration of buffer battery module, further limitation vibration
Cause the displacement of output stage pedestal 21.
Elastic portion 21 or buckle, as shown in Figure 6, Figure 7, elastic portion 21 is caught in card slot 11 at this time, and is clamped with it
Cooperation, since the wearability of buckle is preferable, and it can be metal material to buckle, non-aging, therefore, this snap, energy
Enough extend the service life of elastic portion 21；The material of buckle may be isolation material identical with output stage pedestal 20, such as mould
Material or rubber material can be integrally formed with output stage pedestal 20 and be made, reduce manufacturing process cost；Meanwhile this mode is convenient for
The installation and removal of elastic portion 21 and card slot 11.
In order to further facilitate the installation of output stage pedestal 20, along above-mentioned installation direction, the cross-sectional area of elastic portion 21
It can be gradually reduced, wherein the cross section of elastic portion 21 is perpendicular to installation direction.
In a kind of embodiment, elastic portion 21 is set to the upstream end of output stage pedestal 20 or end plate 10 in assembly direction,
After such setting, in the starting stage that output stage pedestal 20 is contacted with end plate 10, without between elastic portion 21 and card slot 11
Extruding force, when 20 major part of output stage pedestal is installed on end plate 10,21 ability of elastic portion is contacted with card slot 11, generates extruding force,
Therefore, this mode can reduce the resistance of installation process；And it is set to the upstream end of installation direction, convenient for adding for elastic portion 21
Work, especially when elastic portion 21 is buckle.
Preferably, along above-mentioned thickness direction X, the both sides of output stage pedestal 20 or end plate 10 are both provided with elastic portion 21,
To increase the extruding force of elastic portion 21 and card slot 11, make the uniform force of output stage pedestal 20, stability is more preferable, and then improves electricity
The reliability of pond module.
The cell wall of card slot 11 can be parallel with short transverse Z, in order to preferably limit output stage pedestal 20 in short transverse Z
On degree of freedom, card slot 11 is partly oppositely arranged with elastic portion 21 on short transverse Z, i.e. the part of card slot 11 and elastic portion 21
Part it is opposite on short transverse Z, such as when card slot 11 is set to end plate 10, on short transverse Z, along output stage pedestal 20
It is directed toward the direction of end plate 10, the area of card slot 11 and elastic portion 21 perpendicular to the section of short transverse Z gradually increases；Work as card slot
11 when being set to output stage pedestal 20, and on short transverse Z, the direction of end plate 10,11 He of card slot are directed toward along output stage pedestal 20
Area of the elastic portion 21 perpendicular to the section of short transverse Z is gradually reduced.Wherein, the cell wall of card slot 11 can be to tilt to put down
Face, or curved surface.
Preferably, card slot 11 is set to end plate 10, and card slot 11 can be by the top surface of end plate 10 along short transverse Z concave shapes
At elastic portion 21 is set to output stage pedestal 20, so, it is possible to make full use of the size of end plate 10 in the height direction, make defeated
Go out pole pedestal 20 to be as far as possible located in end plate 10, to reduce the size of entire battery modules in the height direction, improves battery mould
The energy density of group.
Further, battery modules further include the second limit assembly, and the second limit assembly includes limiting slot 12 and limiting section
22, in limiting slot 12 and limiting section 22, one is set to end plate 10, and another one is set to output stage pedestal 20；12 He of limiting slot
The limit cooperation of limiting section 22, to limit degree of freedom of the output stage pedestal 20 along above-mentioned short transverse Z.By increasing by the second limit group
Part can further limit output stage pedestal 20 in the degree of freedom of short transverse Z, and then preferably improve the reliable of battery modules
Property.
Wherein, above-mentioned limiting slot 12 can be arc groove, and correspondingly, limiting section 22 is the arc coordinated with arc groove
Protrusion is convenient for the assembly of the first limit assembly and the second limit assembly in this way.Certainly, limiting slot 12 may be
Rectangular channel, opening and the short transverse Z of rectangular channel are in non-zero included angle.
Along the length direction Y of end plate 10, the both sides of output stage pedestal 20 are both provided with the second limit assembly, to increase to defeated
The position-limiting action for going out pole pedestal 20 improves the reliability of battery modules.
In a kind of embodiment, end plate 10 is with output stage pedestal 20, and one is provided with depressed area 13, and another one is provided with slotting
Installation protrusion 23 loaded on depressed area 13；It, can be to defeated by installing the cooperation of protrusion 23 and depressed area 13 after such setting
Go out pole pedestal 20 and carry out coarse positioning with end plate 10, consequently facilitating the installation in the first limit assembly and the second limit assembly.
In the embodiment, limiting slot 12 and card slot 11 can be may be contained within depressed area 13；Limiting section 22 and elastic portion 21
Installation protrusion 23 is may be contained within, i.e. limiting slot 12 is set to card slot 11 on same structure, and limiting section 22 and elastic portion 21 are arranged
In on same structure, as shown in Fig. 4-Fig. 8, this mode that slot structure is set to the same part can facilitate adding for component
Work.
As it was noted above, in order to reduce size of the battery modules on short transverse Z, the energy for improving battery modules is close
Degree, above-mentioned depressed area 13 are set to end plate 10, and installation protrusion 23 is set to output stage pedestal 20, to make full use of end plate 10 in height
The size on the Z of direction is spent, so that output stage pedestal 20 is set to as far as possible in end plate 10, improves the energy density of battery modules.
Wherein, card slot 11 can be the part-structure of depressed area 13, and as shown in Figure 4, Figure 5, depressed area 13 has along length
The first side wall 131 and second sidewall 132 that direction Y is oppositely arranged, card slot 11 can be by the first side walls 131 and second sidewall 132
Part formed；Limiting slot 12 can be formed directly by the first side wall 131 or the recess of second sidewall 132.Optionally, the first side wall
131 and second sidewall 132 be both provided with limiting slot 12, correspondingly, there are two elastic portion 21 is also provided with.
Limiting section 22 and elastic portion 21,22 phase of limiting section can be respectively set in the both sides of 23 Y along its length of installation protrusion
Installation protrusion 23 is outwardly protruded.Optionally, limiting slot 12 and card slot 11 can be integrally formed, limiting section 22 and elastic portion 21
It can also be integrally formed, to save assembly process.
It is to be appreciated that output stage pedestal 20 further includes the body part 24 being connect with installation protrusion 23, installation protrusion 23 connects
There is the sunk structure being recessed relative to elastic portion 21 and body part 24, elastic portion 21 to be set to this for the one end for connecing body part 24
Sunk structure, as shown in Figure 7, Figure 8, elastic portion 21 are set to the sunk structure between body part 24 and limiting section 22, due to bullet
Property portion 21 it is fragile compared with other components of output stage pedestal 20, after such setting, since elastic portion 21 is set to sunk structure,
During output stage pedestal 20 is installed and transported, it is not easy to be touched by other component, to protect elastic portion 21.Correspondingly,
Compared with limiting slot 12 close to the fossaperturate of depressed area 13, limiting slot 12 is recessed compared with the cell wall of card slot 11 and is arranged card slot 11.It can be with card slot
11 connect setting with limiting slot 12.
Above-mentioned depressed area 13 can be along the thickness direction X perforation of end plate 10, in a kind of embodiment, and depressed area 13 also has the
One confined planes 133；Output stage pedestal 20 has the second confined planes 25；First confined planes 133 and the second confined planes 25 are along installation side
To leaning, i.e. the first confined planes 133 are oppositely arranged in assembly direction with the second confined planes 25, and the first confined planes 133 can be set
It is placed in the downstream of depressed area 13 in assembly direction, the second confined planes 25 are set to output stage pedestal 20 (as installed protrusion 23) edge
The downstream of installation direction prevents output stage pedestal 20 to end plate to limit the degree of freedom of output stage pedestal 20 in assembly direction
Other structures inside 10 cause to squeeze.
Above-mentioned first confined planes 133 can be set to the circumferential any position in depressed area 13, optionally, the first confined planes
133 connect with limiting slot 12, as shown in fig. 6, after being arranged such, the first confined planes 133 link together with limiting slot 12, can
The intensity for increasing by the first confined planes 133, increases its restraining ability.Second confined planes 25 can be set to limiting section 22, limiting section
22 form cascaded surface with installation protrusion 23, which is the second confined planes 25.
Wherein, the first confined planes 133, the second confined planes 25 can be provided only with one group, can also be provided with it is multigroup, such as can be with
The second confined planes 25 are both provided at the both ends of the Y along its length of output stage pedestal 20, correspondingly, depressed area 13 is along its length
The both ends of Y are also both provided with the first confined planes 133, and the first confined planes 133 and the second confined planes 25 of homonymy lean.
The foregoing is merely the preferred embodiments of the application, are not intended to limit this application, for the skill of this field
For art personnel, the application can have various modifications and variations.Within the spirit and principles of this application, any made by repair
Change, equivalent replacement, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. a kind of battery modules, which is characterized in that including end plate, output stage pedestal, the first limit assembly,
First limit assembly includes mutually matched card slot and elastic portion, and in the card slot and the elastic portion, one is set
It is placed in the end plate, another one is set to the output stage pedestal；
The elastic portion at least has the elastic force along the direction of the installation direction perpendicular to the output stage pedestal, the installation
The short transverse of direction and the battery modules is in non-zero included angle.
2. battery modules according to claim 1, which is characterized in that the elastic portion is buckle.
3. battery modules according to claim 2, which is characterized in that the buckle is set to the output stage pedestal along institute
State the upstream end of installation direction.
4. battery modules according to claim 1, which is characterized in that the card slot is with the elastic portion in the height side
It is partly oppositely arranged upwards, to limit degree of freedom of the output stage pedestal in the short transverse.
5. according to claim 1-4 any one of them battery modules, which is characterized in that further include the second limit assembly, it is described
Second limit assembly includes limiting slot and limiting section, and in the limiting slot and the limiting section, one is set to the end plate, separately
One is set to the output stage pedestal；The limiting slot is recessed along the length direction of the end plate, the limiting slot and described
Limiting section limit cooperation, to limit degree of freedom of the output stage pedestal in the short transverse；Wherein, the length direction
It is vertical with the short transverse, and be in non-zero included angle with the installation direction.
6. battery modules according to claim 5, which is characterized in that in the end plate and the output stage pedestal, one
It is provided with depressed area, another one is provided with the installation protrusion for being plugged in the depressed area；
The limiting slot and the card slot may be contained within the depressed area；The limiting section may be contained within described with the elastic portion
Installation protrusion.
7. battery modules according to claim 6, which is characterized in that the output stage pedestal further includes convex with the installation
The body part of connection is played, one end that the installation protrusion connects the body part has relative to the elastic portion and the ontology
The sunk structure that portion is recessed, the elastic portion are set to the sunk structure.
8. battery modules according to claim 6, which is characterized in that the depressed area is set to the end plate, the peace
Dress protrusion is set to the output stage pedestal.
9. battery modules according to claim 6, which is characterized in that the depressed area also has the first confined planes；It is described
Output stage pedestal has the second confined planes；First confined planes lean with second confined planes along the installation direction.
10. battery modules according to claim 5, which is characterized in that along the length direction of the end plate, the output stage
The both sides of pedestal are both provided with second limit assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820401259.0U CN207896173U (en) | 2018-03-23 | 2018-03-23 | Battery modules |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820401259.0U CN207896173U (en) | 2018-03-23 | 2018-03-23 | Battery modules |
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| CN207896173U true CN207896173U (en) | 2018-09-21 |
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| WO2020135029A1 (en) * | 2018-12-23 | 2020-07-02 | 宁德时代新能源科技股份有限公司 | Output electrode assembly and battery module |
| WO2020211694A1 (en) * | 2019-04-15 | 2020-10-22 | 宁德时代新能源科技股份有限公司 | Battery module and vehicle |
| WO2020244308A1 (en) * | 2019-06-03 | 2020-12-10 | 宁德时代新能源科技股份有限公司 | Terminal protection device and battery module |
| WO2021027601A1 (en) * | 2019-08-15 | 2021-02-18 | 宁德时代新能源科技股份有限公司 | Battery module |
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| CN113013528A (en) * | 2021-02-23 | 2021-06-22 | 远景动力技术(江苏)有限公司 | End plate for battery module and battery module |
| CN116014367A (en) * | 2023-01-10 | 2023-04-25 | 厦门海辰储能科技股份有限公司 | Output pole assembly, battery module, energy storage device and electric equipment |
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| CN113013528B (en) * | 2021-02-23 | 2022-09-13 | 远景动力技术(江苏)有限公司 | End plate for battery module and battery module |
| WO2023097977A1 (en) * | 2021-12-02 | 2023-06-08 | 宁德时代新能源科技股份有限公司 | Connecting assembly, battery module, battery and power consuming device |
| CN116014367A (en) * | 2023-01-10 | 2023-04-25 | 厦门海辰储能科技股份有限公司 | Output pole assembly, battery module, energy storage device and electric equipment |
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