CN209730046U - Battery cell and battery module - Google Patents
Battery cell and battery module Download PDFInfo
- Publication number
- CN209730046U CN209730046U CN201920084611.7U CN201920084611U CN209730046U CN 209730046 U CN209730046 U CN 209730046U CN 201920084611 U CN201920084611 U CN 201920084611U CN 209730046 U CN209730046 U CN 209730046U
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- Prior art keywords
- battery cell
- electrode terminal
- battery
- cover board
- pole piece
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The utility model provides battery cell and battery module, including electrode assembly, battery case, explosion-proof valve, first electrode terminal and second electrode terminal, and electrode assembly includes the first pole piece, the second pole piece and diaphragm.Electrode assembly is formed by the first pole piece, the second pole piece and diaphragm, and electric machine assembly is placed in battery case, and first electrode terminal, second electrode terminal and explosion-proof valve are installed on the cover board of battery case.Specifically, first electrode terminal is located on the side of the width centreline of cover board, and second electrode terminal is then located on the other side of the width centreline of cover board, so that on the two sides for the width centreline that first electrode terminal and second electrode terminal are separately located at cover board, and explosion-proof valve is located at cover board width centreline side.Therefore achieve the effect that vacate the position at the width centreline of the cover board of battery case, arrange structure convenient for arrangement battery core sampling structure or connection copper aluminium, improve the flexibility of battery cell or battery module.
Description
Technical field
The utility model relates to battery technology field more particularly to battery cells and battery module.
Background technique
Existing battery cell is located at the electrode terminal common design on cover board and is placed in the middle and is arranged symmetrically, therefore
Many restrictions are formd in battery cell grouping procedure, it is especially very big to the influence of sampling structure.Specifically, existing battery
The explosion-proof valve of monomer is located at the middle part of cover board, and explosion-proof valve can not be blocked in battery pack use process in addition, therefore samples knot
Structure is needed using more complicated structure, does evacuation processing to explosion-proof valve, design is complicated, and improves being produced into for sampling structure
This.
Utility model content
For this reason, it may be necessary to provide battery cell and battery module, existing battery cell is solved, is tied when connecting sampling structure
The problem of structure complexity.
To achieve the above object, battery cell is inventor provided, comprising: battery case, the battery case, which has, to be opened
Mouthful；Electrode assembly, the electrode assembly are contained in the battery case, and the electrode assembly includes the first pole piece, the second pole
Piece and the diaphragm being set between first pole piece and second pole piece；Cover board, the cover board cover the opening；The
One electrode terminal, the first electrode terminal are electrically connected with first pole piece；Second electrode terminal, the second electrode terminal
It is electrically connected with second pole piece and explosion-proof valve, the explosion-proof valve setting is electric with described second in the first electrode terminal
Between extreme son；Wherein, the first electrode terminal, the second electrode terminal and the explosion-proof valve are set to the cover board
On, the first electrode terminal is located at the two sides of the width centreline of the cover board with the second electrode terminal, described
Explosion-proof valve is located at the side of the width centreline of the cover board.
Inventor additionally provides battery module, comprising: battery cell arrangement architecture, the battery cell arrangement architecture setting
There are multiple first battery cells and multiple second battery cells, first battery cell and second battery cell are above-mentioned
Battery cell, multiple first battery cells and multiple second battery cells are arranged in the horizontal direction, the lid
The width centreline two sides of plate are respectively the first side and second side, and the first electrode terminal of first battery cell is located at
The second electrode terminal of first side and first battery cell, which is located at, is located at first side and described the
Two sides, the first electrode terminal of second battery cell are located at the institute of described second side and second battery cell
It states second electrode terminal and is located at and be located at described second side and first side, first battery cell and second electricity
Pond monomer is sequentially arranged at intervals；And busbar connector, the busbar connector connect first battery cell and the second battery list
Body.
As a kind of preferred structure of the utility model, the busbar connector extends along the horizontal direction.
As a kind of preferred structure of the utility model, the electrode assembly be takeup type structure and be it is flat, it is described
The outer surface of electrode assembly includes two flat horizontal surfaces, and two flat horizontal surfaces are faced each other along the vertical direction；Or, the electricity
Pole component is laminated structure, and first pole piece, the diaphragm and second pole piece are laminated along the vertical direction.
As a kind of preferred structure of the utility model, the first electrode terminal of first battery cell and described
The second electrode terminal of first battery cell is respectively arranged at the two sides of the cover board length direction center line；And/or
The first electrode terminal of second battery cell and the second electrode end of second battery cell
Son is respectively arranged at the two sides of the cover board length direction center line.
As a kind of preferred structure of the utility model, the explosion-proof valve of the battery cell is set to the cover board
The center of length direction.
As a kind of preferred structure of the utility model, the battery module further include:
Sampling structure, the sampling structure extend along the width centreline of the cover board.
As a kind of preferred structure of the utility model, the sampling structure is described explosion-proof with first battery cell
The explosion-proof valve of valve and second battery cell avoids mutually setting.
As a kind of preferred structure of the utility model, the cover board is vertically arranged.
As a kind of preferred structure of the utility model, the cover board is rectangle, in the battery cell arrangement architecture,
The short side of the cover board of the short side of the cover board of first battery cell and second battery cell is adjacent；The electricity
Pond module includes the battery cell arrangement architecture of two layers or more stacked along the vertical direction.
It is different from the prior art, above-mentioned technical proposal is located at the side of the width centreline of cover board by first electrode terminal
On, and second electrode terminal is then located on the other side of the width centreline of cover board, so that first electrode terminal and second electrode
Terminal is separately located on the two sides of the width centreline of cover board, and explosion-proof valve is located at cover board width centreline side, realizes battery
The effect that position at the width centreline of the cover board of shell is vacated improves battery cell or battery convenient for arrangement sampling structure
The flexibility of module.
Detailed description of the invention
Fig. 1 is the structure chart of the battery module described in specific embodiment with sampling structure；
Fig. 2 is the structure chart of battery module described in specific embodiment connected by busbar connector；
Fig. 3 is the explosive view of battery cell described in specific embodiment；
Fig. 4 is the cross-sectional view of the battery cell of takeup type structure electrode component described in specific embodiment；
Fig. 5 is the cross-sectional view of the battery cell of laminated structure electrode assembly described in specific embodiment；
Fig. 6 is the schematic diagram of battery module described in specific embodiment；
Fig. 7 is the front view of the battery cell of battery module described in specific embodiment；
Fig. 8 is the schematic diagram of the battery cell arrangement architecture with multilayer of battery module described in specific embodiment.
Description of symbols:
1, battery cell arrangement architecture；
11, battery cell；
11c, the first battery cell；11d, the second battery cell；
111, electrode assembly；112, battery case；113, cover board；
114, first electrode terminal；115, second electrode terminal；116, explosion-proof valve；
117, electrode terminal connector；
1110, flat horizontal surface；1111, the first pole piece；1112, the second pole piece；
1113, diaphragm；1121, first surface；1122, second surface；
111a, takeup type structure electrode component；111b, laminated structure electrode assembly；
1131, the width centreline of cover board；1132, the length centerline of cover board；
2, busbar connector；
3, sampling structure；
Specific embodiment
Technology contents, construction feature, the objects and the effects for detailed description technical solution, below in conjunction with specific reality
It applies example and attached drawing is cooperated to be explained in detail.
In the description of the present application unless specifically defined or limited otherwise, term " first ", is only used for retouching " second "
The purpose stated, is not understood to indicate or imply relative importance；Unless otherwise prescribed or explanation, term " multiple " refer to two
More than a；Term " connection ", " fixation " etc. shall be understood in a broad sense, for example, " connection " may be a fixed connection, being also possible to can
Dismantling connection, or be integrally connected, or electrical connection；It can be directly connected, it can also be indirectly connected through an intermediary.For
For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the description of the present application, arrow X direction is length direction in all attached drawings, and arrow Y direction is width
Direction is spent, arrow Z direction is vertical direction.Horizontal direction is to be parallel to the direction of horizontal plane, either above-mentioned length
Direction is also possible to above-mentioned width direction.In addition, horizontal direction not only includes the absolute parallel direction in horizontal plane, also include
The direction for being roughly parallel to horizontal plane of conventional cognitive in engineering.Vertical direction is the direction perpendicular to horizontal plane, vertical direction
Not only include absolute upright in the direction of horizontal plane, also includes the side for being approximately perpendicular to horizontal plane of conventional cognitive in engineering
To.In addition, the nouns of locality such as "upper" described herein, "lower", "top", "bottom" are understood relative to vertical direction
's.In order to facilitate understanding and explanation, hereinafter can with reference to the accompanying drawings in X, Y, Z coordinate system carry out direction description.
As depicted in figs. 1 and 2, the present embodiment provides battery cell and battery module, battery module includes: battery cell row
Array structure 1, busbar connector 2 and sampling structure 3, battery cell arrangement architecture 1 are provided with multiple battery cells 11, multiple battery cells
11 arrange placement along horizontal direction (X-direction arrangement)；Busbar connector 2 is series-parallel by multiple battery cells 11, to reach battery
Voltage and current parameter designed by module；Sampling structure 3 is used to acquire the performance parameter of battery cell 11, to realize to battery list
The real time monitoring of body 11.
As shown in figure 3, battery cell 11 includes electrode assembly 111, battery case 112, cover board 113, first electrode terminal
114, second electrode terminal 115 and explosion-proof valve 116；Battery case 112 is cuboid (hexahedron) in the present embodiment.Battery case
112 have opening, and electrode assembly 111 is contained in battery case 112, then cover board 113 is covered in opening, by electrode assembly
111 are enclosed in battery case 112.First electrode terminal 114, second electrode terminal 115 and explosion-proof valve 116 are set to cover board
It on 113, is electrically connected between electrode assembly 111 and electrode terminal by electrode terminal connector 117, to realize electrode assembly electrical property
The output of energy.Battery case 112 can be manufactured by such as aluminium, aluminium alloy or plastic or other material.
Specifically, electrode assembly 111 including the first pole piece 1111, the second pole piece 1112 and is set to the first pole piece 1111
And the second diaphragm 1113 between pole piece 1112.First pole piece 1111 can be positive plate or negative electrode tab, the second pole piece 1112 with
The polarity of first pole piece 1111 is on the contrary, correspondingly, the second pole piece 1112 is negative electrode tab or positive plate.Wherein, diaphragm 1113 is to be situated between
Insulator between the first pole piece 1111 and the second pole piece 1112.First electrode terminal 114 is electrically connected with the first pole piece 111,
Second electrode terminal 115 is electrically connected with the second pole piece 1112.
It is illustratively positive plate with the first pole piece 1111, the second pole piece 1112 is illustrated for negative electrode tab.Similarly, In
In other embodiments, the first pole piece 1111 can also be negative electrode tab, and the second pole piece 1112 is positive plate.In addition, anode is living
Property substance is applied on the coating area of positive plate, and negative electrode active material is applied on the coating area of negative electrode tab.From coating
The uncoated area that area extends then is used as tab, and electrode assembly 111 includes two tabs, i.e. anode ear and negative electrode lug, anode ear
Extend from the coating area of positive plate；Negative electrode lug extends from the coating area of negative electrode tab.Lead between anode ear and positive electrode terminal
The electrical connection of positive terminal connector is crossed, is electrically connected between negative electrode lug and negative electrode terminal by negative terminal connector.
Battery case 112 is hexahedron structure, and is opening with wherein one side, and battery case 112 includes two the first tables
Face 1121 and two second surfaces 1122, the area of first surface 1121 are greater than the area of second surface 1122.In battery cell
In 11, two second surfaces 1122 of each battery cell 11 face each other in the horizontal direction (for example, X-direction), Mei Ge electricity
Two first surfaces 1121 of pond monomer 11 face each other along the vertical direction (Z-direction).As shown in Figure 4 and 5, this implementation
In example, electrode assembly 111 can use takeup type structure electrode component 111a or laminated structure electrode assembly 111b.Work as electrode
When component 111 is takeup type structure, the flat horizontal surface 1110 of electrode assembly 111 is towards vertical direction (Z-direction).Work as electrode assembly
111 be laminated structure when, the first pole piece 1111 and the second pole piece 1112 of electrode assembly 111 are along the vertical direction (Z-direction)
Stacking.
As shown in figure 4, electrode assembly 111 is flat, and electrode group when electrode assembly 111 is takeup type structure
The outer surface of part 111 includes two flat horizontal surfaces 1110, and two flat horizontal surfaces 1110 face each other along the vertical direction (Z-direction), i.e.,
Flat horizontal surface 1110 is faced each other with first surface 1121.The substantially hexahedron structure of electrode assembly 111, flat horizontal surface 1110 are substantially flat
Row is in winding axis and is the maximum outer surface of area.
As shown in figure 5, when electrode assembly 111 is laminated structure, the first pole piece 1111, diaphragm 1113 and the second pole piece
1112 are vertically stacked, i.e., the surface of the first pole piece 1111 is faced each other with first surface 1121.
As shown in fig. 6, battery cell 11 is the first side and second side, battery in the two sides of the width centreline 1131 of cover board
Monomer arrangement architecture is provided with multiple first battery cell 11c and multiple second battery cell 11d, the first battery cell 11c's
First electrode terminal 114 and second electrode terminal 115 are located at the first side and second side, and the first of the second battery cell 11d
Electrode terminal 114 and second electrode terminal 115 are located at second side and the first side.That is in the first battery cell 11c, the first electricity
Extreme sub 114 in the top of 113 vertical direction of cover board (Z-direction), and second electrode terminal 115 is in 113 vertical direction of cover board
The lower section of (Z-direction)；And in the second battery cell 11d, first electrode terminal 114 is in 113 vertical direction (Z axis side of cover board
To) lower section, and second electrode terminal 115 is in the top of 113 vertical direction of cover board (Z-direction).In this way, having reached battery
Two electrode terminals of monomer 11 are respectively in battery cell 11 in the effect of the two sides of cover board width centreline 1131, and then reach
By the vacant purpose in position of the battery cell 11 at the width centreline.In the battery cell array structure 1 of the present embodiment,
First battery cell 11c and the second battery cell 11d are sequentially arranged at intervals, i.e., per two adjacent the first battery cell 11c it
Between be provided with a second battery cell 11d, busbar connector 2 extends along horizontal direction, by adjacent the first battery cell 11c and
Second battery cell 11d adjacent first electrode terminal 114 and second electrode terminal 115 connect, and realize multiple battery cells 11
Series connection.First battery cell 11c's and the second battery cell 11d is arranged successively so that busbar connector 2 extends in only the horizontal direction
The electrical connection that battery cell 11 can be realized is not required to the width centreline 1131 across cover board, reserves cover board for sampling structure 3
113 width direction centers are further simplified structure design, improve space utilization rate.
As shown in fig. 7, the width centreline for being located at cover board of first electrode terminal 114 and second electrode terminal 115
1131 two sides, explosion-proof valve 116 are located at the side of the width centreline 1131 of cover board, and explosion-proof valve 116 can be located at first electrode
Side where terminal 114 can also be located at the side where second electrode terminal 115.First electrode terminal 114, second electrode
Terminal 115 and explosion-proof valve 116 are placed in the two sides of the width centreline 1131 of cover board, reserve the width centreline 1131 of cover board
Position, battery cell 11 form battery module when, sampling structure 3 can be arranged in width centreline 1131 of cover board
It sets, does not need to design additional avoiding structure, design is simple, saves space.
As shown in fig. 7, first electrode terminal 114 and second electrode terminal 115 are arranged in battery cell in the present embodiment
The two sides of 11 cover board length direction center line 1132, i.e. first electrode terminal 114 and second electrode terminal 115 are arranged in cover board
On 113 diagonal line.When battery cell 11 is applied to battery module, the length of busbar connector 2 can be shortened, improve battery module
Energy density.
In the present embodiment, explosion-proof valve 116 and second electrode terminal 115 are arranged along same level height (X-direction),
Explosion-proof valve 116 can also be arranged with first electrode terminal 114 along same level height (X-direction) in other embodiments,
And explosion-proof valve 116 is located on the center of 113 length of cover board (X-direction).Explosion-proof valve 116 is located at lengthwise centers position, has
Conducive to the explosion of explosion-proof valve 116, the security performance of battery cell 11 is improved.
As shown in Figure 6 to 8, the plate face (being parallel to face where X-axis and Z axis) of the cover board 113 of all battery cells 11 is all
Identical direction need to only be installed when arranging sampling structure 3 in one side, improve the convenience to battery module installation.
Do not have first electrode terminal 114, second electrode terminal 115 and explosion-proof at the cover board width centreline 1131 of battery cell 11
Valve 116, up-sampling structure 3 in battery cell arrangement architecture 1 can arrange along horizontal direction (X-direction) straight line, that is, reduce
The complexity in structure of sampling structure 3, and improve the convenience of arrangement sampling structure 3.And sampling structure 3 with it is explosion-proof
Valve 116 mutually evacuation setting, avoid sampling structure 3 be covered in explosion-proof valve 116 surface cause explosion-proof valve cannot timely explosion, shadow
Ring 11 security performance of battery cell.
As shown in figure 8, having multiple battery cells 11 in battery cell arrangement architecture 1, multiple battery cells 11 are along dampening
Square arranged to (X-direction), the cover board 113 of the battery cell 11 in this implementations is rectangle, and the plate face of cover board 113 with vertically
Face (Z axis and face where X-axis) is parallel to each other, and (is parallel to Z with the short side of cover board 113 between battery cell 11 and battery cell 11
Axis direction) it is abutted, i.e. the second surface 1122 of adjacent cell monomer 11 is oppositely arranged.As shown in figure 8, battery module includes
Multiple battery cell arrangement architectures 1, and multiple battery cell arrangement architectures 1 stacks along vertical direction (Z-direction), i.e., it is electric
The first surface 1121 of pond monomer 11 and the adjacent stacking of the first surface 1121 of another battery cell 11, so that battery module is
Multilayered structure, the number of plies of stacking are less than the quantity of the battery cell 11 in battery cell arrangement architecture 1, such as battery cell arrangement
The quantity of battery cell 11 in structure 1 is six, then the number of plies that battery module stacks is small to be equal to five layers.In preferred embodiment
In, battery cell arrangement architecture 1 stacks two layers.
It should be noted that being not intended to limit although the various embodiments described above have been described herein
The scope of patent protection of the utility model.Therefore, based on the innovative idea of the utility model, embodiment described herein is carried out
Change and modification or equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, directly
Or above technical scheme is used in other related technical areas indirectly, it is included in the protection model of the utility model patent
Within enclosing.
Claims (10)
1. battery cell characterized by comprising
Battery case, the battery case have opening；
Electrode assembly, the electrode assembly are contained in the battery case, and the electrode assembly includes the first pole piece, the second pole
Piece and the diaphragm being set between first pole piece and second pole piece；
Cover board, the cover board cover the opening；
First electrode terminal, the first electrode terminal are electrically connected with first pole piece；
Second electrode terminal, the second electrode terminal are electrically connected with second pole piece, and
Explosion-proof valve, the explosion-proof valve are arranged between the first electrode terminal and the second electrode terminal；
Wherein, the first electrode terminal, the second electrode terminal and the explosion-proof valve are set on the cover board, and described
One electrode terminal and the second electrode terminal are located at the two sides of the width centreline of the cover board, and the explosion-proof valve is located at
The side of the width centreline of the cover board.
2. battery module characterized by comprising
Battery cell arrangement architecture, the battery cell arrangement architecture are provided with multiple first battery cells and multiple second batteries
Monomer, first battery cell and second battery cell are battery cell described in claim 1, multiple first electricity
Pond monomer and multiple second battery cells are arranged in the horizontal direction, and the width centreline two sides of the cover board are respectively
The first electrode terminal of the first side and second side, first battery cell is located at first side, first battery
The second electrode terminal of monomer is located at described second side, and the first electrode terminal of second battery cell is located at institute
State second side, the second electrode terminal of second battery cell is located at first side, first battery cell and
Second battery cell is sequentially arranged at intervals；And
Busbar connector, the busbar connector connect first battery cell and second battery cell.
3. battery module according to claim 2, which is characterized in that the busbar connector extends along the horizontal direction.
4. battery module according to claim 2, which is characterized in that the cover board is vertically arranged.
5. battery module according to claim 4, which is characterized in that the cover board is rectangle, is arranged in the battery cell
In array structure, the short side of the cover board of the short side of the cover board of first battery cell and second battery cell is adjacent
It connects；
The battery module includes the battery cell arrangement architecture of two layers or more stacked along the vertical direction.
6. battery module according to claim 5, which is characterized in that the electrode assembly is takeup type structure and is flat
The outer surface of shape, the electrode assembly includes two flat horizontal surfaces, and two flat horizontal surfaces are faced each other along the vertical direction；
Or, the electrode assembly is laminated structure, first pole piece, the diaphragm and second pole piece are along the vertical direction
Stacking.
7. battery module according to claim 2, which is characterized in that the first electrode end of first battery cell
The second electrode terminal of sub and described first battery cell is respectively arranged at the two sides of the cover board length direction center line；
And/or
The first electrode terminal of second battery cell and the second electrode terminal point of second battery cell
It is not set to the two sides of the cover board length direction center line.
8. battery module according to claim 2, which is characterized in that the explosion-proof valve of the battery cell is set to institute
State the center of the length direction of cover board.
9. battery module according to claim 2, which is characterized in that the battery module further include:
Sampling structure, the sampling structure extend along the width centreline of the cover board.
10. battery module according to claim 9, which is characterized in that the sampling structure and first battery cell
The explosion-proof valve and the explosion-proof valve of second battery cell avoid setting mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920084611.7U CN209730046U (en) | 2019-01-18 | 2019-01-18 | Battery cell and battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920084611.7U CN209730046U (en) | 2019-01-18 | 2019-01-18 | Battery cell and battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209730046U true CN209730046U (en) | 2019-12-03 |
Family
ID=68680329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920084611.7U Active CN209730046U (en) | 2019-01-18 | 2019-01-18 | Battery cell and battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209730046U (en) |
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2019
- 2019-01-18 CN CN201920084611.7U patent/CN209730046U/en active Active
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