CN209447949U - A kind of battery module and battery pack - Google Patents
A kind of battery module and battery pack Download PDFInfo
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- CN209447949U CN209447949U CN201920291886.8U CN201920291886U CN209447949U CN 209447949 U CN209447949 U CN 209447949U CN 201920291886 U CN201920291886 U CN 201920291886U CN 209447949 U CN209447949 U CN 209447949U
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- battery cell
- battery
- arrangement architecture
- cell arrangement
- fixed part
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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
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Abstract
The utility model relates to a kind of battery module, including battery cell arrangement architecture, upper cover and lower cover, the battery cell arrangement architecture is arranged between the upper cover and the lower cover；Wherein, the battery cell includes electrode assembly and battery case, the electrode assembly be takeup type structure and be it is flat, the outer surface of the electrode assembly includes two flat horizontal surfaces, and two flat horizontal surfaces face each other along the vertical direction；Or, the electrode assembly is laminated structure, first pole piece, the diaphragm and second pole piece are vertically stacked.It is different from the prior art, the utility model can reduce the maximum swelling power of battery module, therefore the smaller end plate of volume can be selected, to improve the energy density of battery module.
Description
Technical field
The utility model relates to battery technology field, in particular to a kind of battery module and battery pack.
Background technique
Secondary cell has many advantages, such as that energy density is big, and long service life, energy conservation and environmental protection are widely used in new energy vapour
The different fields such as vehicle, energy-accumulating power station.
When in use, it will usually multiple battery cells be arranged and be electrically connected to each other by busbar connector.It is multiple in order to fix
Battery cell, it will usually which end plate and side plate are set, and end plate and side plate are interconnected to form module frame, and multiple battery cells are fixed
In in module frame.
Since battery cell can expand deformation in use, and dilatancy is in the longest ruler of battery module
It is particularly evident on very little direction.In existing battery module, the maximum swelling power of battery cell is alongst and length side
To the longest dimension direction for being again battery module.Therefore, battery module along its length on dilatancy amount it is very big.In order to
The battery module excessive dilatancy amount of upper generation along its length is limited, the end plate of battery module needs to thicken to cause to hold
Plate bulk is larger, relatively low so as to cause the energy density of battery module, and is unfavorable for battery module lightweight.
Utility model content
For this reason, it may be necessary to provide a kind of battery module and battery pack, the technical issues of for solving the prior art.
To achieve the above object, a kind of battery module is inventor provided, comprising:
Battery cell arrangement architecture, the battery cell arrangement architecture include that multiple battery cells and electrical connection are described more
Multiple busbar connectors of a battery cell, the multiple battery cell arrange in the horizontal direction；
Upper cover；And
Lower cover, the battery cell arrangement architecture are arranged between the upper cover and the lower cover；
Wherein, the battery cell includes electrode assembly and battery case, and the electrode assembly is contained in the battery case
In vivo, the electrode assembly include the first pole piece, the second pole piece and be set to first pole piece and second pole piece it
Between diaphragm；
The electrode assembly be takeup type structure and be it is flat, the outer surface of the electrode assembly includes two flat
Face, two flat horizontal surfaces face each other along the vertical direction；Or, the electrode assembly be laminated structure, first pole piece,
The diaphragm and second pole piece are vertically stacked.
As a kind of preferred structure of the utility model, the upper cover includes the first mainboard and the first fixed part, and described the
One fixed part is connected to first mainboard and extends towards the direction far from first mainboard；
The lower cover includes the second mainboard and the second fixed part, and second fixed part is connected to second mainboard and court
Direction far from second mainboard extends；
First fixed part is oppositely arranged and is fixedly connected with second fixed part.
As a kind of preferred structure of the utility model, first fixed part and/or second fixed part are described in
Horizontal direction extends.
As a kind of preferred structure of the utility model, it is fixed that the both ends of first mainboard are provided with described first
Portion, the both ends of second mainboard are provided with second fixed part.
As a kind of preferred structure of the utility model, the battery module further includes collection plate, and the collection plate is located at
The side of the battery cell arrangement architecture, and be vertically arranged, the collection plate is respectively and in the battery cell arrangement architecture
Each battery cell be connected.
As a kind of preferred structure of the utility model, the battery module further includes fireproof component, the fireproof component
It is vertically arranged, multiple battery cells of the battery cell arrangement architecture are provided with explosion-proof valve, the battery cell arrangement knot
The explosion-proof valve of structure both faces towards the fireproof component.
As a kind of preferred structure of the utility model, the battery module includes more than two battery cell arrangement knots
Structure, one of them described battery cell arrangement architecture are the first battery cell arrangement architecture, another is arranged with first battery
The neighbouring battery cell arrangement architecture of array structure is the second battery cell arrangement architecture；
The explosion-proof valve of the first battery cell arrangement architecture and the second battery cell arrangement architecture it is described
Explosion-proof valve faces each other, and the fireproof component is located at the explosion-proof valve and described second of the first battery cell arrangement architecture
Between the explosion-proof valve of battery cell arrangement architecture.
As a kind of preferred structure of the utility model, the battery module includes more than two battery cell arrangement knots
Structure, one of them described battery cell arrangement architecture are the first battery cell arrangement architecture, another is arranged with first battery
The neighbouring battery cell arrangement architecture of array structure is the second battery cell arrangement architecture；
The explosion-proof valve of the first battery cell arrangement architecture and the second battery cell arrangement architecture it is described
Explosion-proof valve mutually back to；
The fireproof component includes the first fireproof component and the second fireproof component, the first battery cell arrangement architecture
The explosion-proof valve both face towards first fireproof component, the explosion-proof valve of the second battery cell arrangement architecture both faces towards
Second fireproof component.
As a kind of preferred structure of the utility model, the battery module includes more than two battery cell arrangement knots
Structure, one of them described battery cell arrangement architecture are the first battery cell arrangement architecture, another is arranged with first battery
The neighbouring battery cell arrangement architecture of array structure is the second battery cell arrangement architecture；
The battery module further includes cooling component, and the cooling component is arranged in the first battery cell arrangement architecture
Between the second battery cell arrangement architecture, the cooling component is for cooling down the first battery cell arrangement architecture
The battery cell of the battery cell and the second battery cell arrangement architecture.
As a kind of preferred structure of the utility model, the battery module includes two arranged along the vertical direction
Above battery cell arrangement architecture.
Be different from the prior art, due to electrode assembly in charge and discharge process inevitably along the thickness direction of pole piece
It expands (maximum along the direction expansive force perpendicular to flat horizontal surface in the electrode assembly of takeup type structure；In laminated structure
Electrode assembly in, it is maximum along the stacking direction expansive force of the first pole piece and the second pole piece).And in the prior art, battery mould
In the battery cell of block, the direction that electrode assembly applies maximum swelling power to battery case is all directed towards horizontal direction.Due to
Battery module is in more (for example, chassis height by vehicle big compared to the size of vertical direction of size in the horizontal direction
Size limitation, needs more battery cells and stacks in the horizontal direction, and expansive force accumulation is big), therefore, existing battery module exists
The expansive force being subject in horizontal direction is very big, it is therefore desirable to very thick end plate be arranged in the horizontal direction two sides of battery module
To resist expansive force, and end plate thickeies the energy density that can reduce battery module.And in above scheme, electrode assembly can be selected
Takeup type structure or laminated structure.When electrode assembly is takeup type structure, flat horizontal surface is towards vertical direction.Work as electrode group
When part is laminated structure, the first pole piece and the second pole piece are vertically stacked.As it can be seen that electrode assembly is either using winding
Formula structure still uses laminated structure, and electrode assembly applies the direction of maximum swelling power both facing to vertical side to battery case
To.Since the direction that electrode assembly applies maximum swelling power to battery case is directed towards vertical direction, and stacked on vertical direction
Battery cell number it is less.Therefore, compared with the prior art, above scheme can reduce the maximum swelling power of battery module,
Therefore the smaller end plate of volume can be selected, to improve the energy density of battery module.
To achieve the above object, inventor additionally provides a kind of battery pack, comprising:
Storage case, and
Battery module as described in multiple any one provided such as above-mentioned inventor in the storage case is set.
As a kind of preferred structure of the utility model, the upper cover includes the first mainboard and the first fixed part, and described the
One fixed part is connected to first mainboard and extends towards the direction far from first mainboard, and the lower cover includes the second mainboard
With the second fixed part, second fixed part is connected to second mainboard and extends towards the direction far from second mainboard；
The storage case includes case lid and cabinet, and the cabinet is provided with fixed beam, and the fixed beam protrudes from described
The surface of cabinet, first fixed part, second fixed part and the fixed beam three are oppositely arranged, and described first is fixed
Portion and second fixed part are fixed in the fixed beam.
As a kind of preferred structure of the utility model, first fixed part is provided with the first fixation hole, and described second
Fixed part is provided with the second fixation hole, and the battery pack further includes bolt, the bolt pass through first fixation hole with it is described
Second fixation hole is simultaneously connect with the fixed beam, and the battery module is fixed on the cabinet.
As a kind of preferred structure of the utility model, the battery pack further includes press strip, first fixed part and institute
It states the second fixed part to be pressed between the press strip and the fixed beam, the battery module is fixed on the cabinet.
It is different from the prior art, the electrode assembly of the battery cell in above-mentioned technical proposal in battery module can select volume
Wound structure or laminated structure.When electrode assembly is takeup type structure, flat horizontal surface is towards vertical direction.Work as electrode assembly
When for laminated structure, the first pole piece and the second pole piece are vertically stacked.As it can be seen that electrode assembly either uses takeup type
Structure still uses laminated structure, and electrode assembly applies the direction of maximum swelling power both facing to vertical direction to battery case.
Since the direction that electrode assembly applies maximum swelling power to battery case is directed towards vertical direction, and the electricity stacked on vertical direction
Pond monomer number is less.Therefore, compared with the prior art, above scheme can reduce the maximum swelling power of battery module, therefore
The smaller end plate of volume can be selected, to improve the energy density of battery module.
Detailed description of the invention
Fig. 1 is the explosive view of battery pack described in specific embodiment；
Fig. 2 is the structural schematic diagram of battery pack described in specific embodiment；
Fig. 3 is the explosive view of the battery module of single battery monomer arrangement architecture described in the first embodiment；
Fig. 4 is the explosive view of the battery module of single battery monomer arrangement architecture described in second of embodiment；
Fig. 5 is the explosive view of the battery module of single battery monomer arrangement architecture described in the third embodiment；
Fig. 6 is the explosive view of the battery module of single battery monomer arrangement architecture described in the 4th kind of embodiment；
Fig. 7 is the explosive view of the battery module of single layer multiple row battery cell arrangement architecture described in the 5th kind of embodiment；
Fig. 8 is the explosive view of the battery module of single layer multiple row battery cell arrangement architecture described in the 6th kind of embodiment；
Fig. 9 is the explosive view of the battery module of the single-row battery cell arrangement architecture of multilayer described in the 7th kind of embodiment；
Figure 10 is the explosive view of the battery module of multilayer multiple row battery cell arrangement architecture described in the 8th kind of embodiment；
Figure 11 is the explosive view of the battery module of multilayer multiple row battery cell arrangement architecture described in the 9th kind of embodiment；
Figure 12 is the explosive view of the battery module of multilayer multiple row battery cell arrangement architecture described in the tenth kind of embodiment；
Figure 13 is the explosive view of battery cell arrangement architecture described in specific embodiment；
Figure 14 is the structural schematic diagram of battery cell arrangement architecture described in specific embodiment；
Figure 15 is the sectional view of the first fixed part and second fixed part described in specific embodiment；
Figure 16 is the explosive view of specific embodiment battery cell；
Figure 17 is the sectional view that specific embodiment electrode assembly is takeup type structure；
Figure 18 is the sectional view that specific embodiment electrode assembly is laminated structure.
Description of symbols:
1, battery module,
10, battery cell arrangement architecture,
101, the first battery cell arrangement architecture,
102, the second battery cell arrangement architecture,
11, battery cell,
111, electrode assembly,
1111, the first pole piece,
1112, the second pole piece,
1113, diaphragm,
1114, flat horizontal surface,
112, battery case,
1121, first surface,
1122, second surface,
113, electrode terminal connector,
114, cover board,
115, electrode terminal,
116, explosion-proof valve,
12, busbar connector,
13, upper cover,
130, the first mainboard,
131, the first fixed part,
1311, the first fixation hole,
14, lower cover,
140, the second mainboard,
141, the second fixed part,
1411, the second fixation hole,
15, collection plate,
16, end plate,
17, fireproof component,
171, the first fireproof component,
172, the second fireproof component,
18, cooling component,
2, case lid,
3, cabinet,
31, fixed beam,
4, press strip,
5, bolt.
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
It is a above including two；Term " connection ", " fixation " etc. shall be understood in a broad sense, for example, " connection " may be a fixed connection,
It can be and be detachably connected, or be integrally connected, or electrical connection；It can be directly connected, it can also be indirect by intermediary
It is connected.For the ordinary skill in the art, it can understand as the case may be above-mentioned term in the present invention
Concrete meaning.
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.
Fig. 1 and Fig. 2 is please referred to, the present embodiment is related to a kind of battery pack, which includes that storage case and setting exist
Multiple battery modules 1 in storage case, multiple battery modules 1 can the (length directions or arrow of arrow x meaning in the horizontal direction
The width direction of head y meaning) arrangement, it (arrow z direction) can also arrange along the vertical direction.
Wherein, as shown in figure 3, battery module 1 include upper cover 13 and lower cover 14, upper cover 13 include the first mainboard 130 with
And first fixed part 131, the first fixed part 131 are connected to the first mainboard 130 and extend towards the direction far from the first mainboard 130,
Lower cover 14 includes the second mainboard 140 and the second fixed part 141, and the second fixed part 141 is connected to the second mainboard 140 and towards separate
The direction of second mainboard 140 extends, and the first fixed part 131 is oppositely arranged and is fixedly connected with the second fixed part 141.
Optionally, the first mainboard 130 and the first fixed part 131 are integrally formed, the second mainboard 140 and the second fixed part 141
It is integrally formed, the first fixed part 131 passes through Nian Jie, welding, mechanical connection, any of them mode with the second fixed part 141
It is fixed to each other.
Optionally, storage case includes case lid 2 and cabinet 3, and multiple fixed beams 31 are provided on cabinet 3.In addition, at other
In embodiment, fixed beam 31 be can be set on case lid 2.In the present embodiment, fixed beam 31 can be upward convex for the bottom of cabinet 3
It rises or individually components is welded on the bottom of cabinet 3.Wherein, the first fixed part 131, the second fixed part 141 and fixed beam 31
Three is oppositely arranged.First fixed part 131 is arranged above the second fixed part 141, and the second fixed part 141 is arranged in fixed beam 31
Top, the first fixed part 131 and the second fixed part 141 are each attached in fixed beam 31.In this way, battery module 1 is solid by first
Determine portion 131 and the second fixed part 141 is fixed in fixed beam 31, guarantees the stability of battery pack in use.
Optionally, the fixed form that the first fixed part 131 and the second fixed part 141 are fixed in fixed beam 31 has following two
Kind, but it is not restricted to following two fixed form, there can also be other alternatives.
The first fixed form: the first fixed part 131 is provided with the first fixation hole 1311, and the second fixed part 141 is provided with
Second fixation hole 1411, battery pack further include bolt 5, and bolt 5 sequentially passes through the first fixation hole 1311 and the second fixation hole 1411
It is connected with fixed beam 31, battery module 1 is fixed on cabinet 3.Opposite first fixation hole 1311 of second fixation hole 1411 is set
It sets, the nut matched with bolt 5 is provided in fixed beam 31.
Second of fixed form: battery pack further includes press strip 4, and press strip 4 is by the first fixed part 131 and the second fixed part 141
It is pressed in fixed beam 31, battery module 1 is fixed on cabinet 3.At this point, being consolidated by press strip 4 to battery module 1
It is fixed.
Optionally, the first fixed part 131 and/or the second fixed part 141 (length direction of arrow x meaning in the horizontal direction
Or the width direction of arrow y meaning) extend, wherein in certain embodiments, the first fixed part 131 and the second fixed part 141
(arrow z direction) extends along the vertical direction.Preferably, 141 edge of the first fixed part 131 and the second fixed part in the present embodiment
Horizontal direction (length direction of arrow x meaning or the width direction of arrow y meaning) extends, in this way, it is difficult to reduce assembly
Degree.
Optionally, the both ends of the first mainboard 130 are provided with the first fixed part 131, and the both ends of the second mainboard 140 are respectively provided with
There is the second fixed part 141.At this point, battery module 1 installation point distribution in the horizontal direction (length direction of arrow x meaning or
The width direction of arrow y meaning) on both ends, so that battery module 1 is mounted in battery pack stress more evenly.
Wherein, the first mainboard 130 can mark the both ends of width direction (such as arrow y direction) to be provided with along figure
First fixed part 131 can also mark the both ends of length direction (such as arrow x direction) to be provided with first fixed along figure
Portion 131.Similarly, the second mainboard 140 can mark the both ends of width direction (such as arrow y direction) to be provided with along figure
Two fixed parts 141 can also mark the both ends of length direction (such as arrow x direction) to be provided with the second fixed part along figure
141。
As shown in figure 3, battery module 1 includes battery cell arrangement architecture 10, upper cover 13, lower cover in the first embodiment
14, collection plate 15 and fireproof component 17, battery cell arrangement architecture 10 include that multiple battery cells 11 and electrical connection are multiple
Multiple busbar connectors 12 of battery cell 11, multiple battery cells 11 (length direction or arrow of arrow x meaning in the horizontal direction
The width direction of y meaning) arrangement.
Battery cell arrangement architecture 10 is arranged between upper cover 13 and lower cover 14.Collection plate 15 is located at battery cell arrangement knot
It the side of structure 10 and is vertically arranged, collection plate 15 is connected with the battery cell 11 in battery cell arrangement architecture 10.Fire prevention structure
Part 17 is vertically arranged, and multiple battery cells 11 of battery cell arrangement architecture 10 are provided with explosion-proof valve 116, battery cell arrangement
The explosion-proof valve 116 of structure 10 both faces towards fireproof component 17.
In the first embodiment, only one battery cell arrangement architecture 10 is arranged between upper cover 13 and lower cover 14.
Fig. 4 shows second of embodiment, and in Fig. 4, element identical with element illustrated in fig. 3 uses identical attached drawing
Label indicates, and description explanation is not repeated in structure something in common, mainly illustrates difference.In second of embodiment, electricity
Pond module 1 further includes cooling component 18, and cooling component 18 extends along the orientation of battery cell 11, and for cooling down battery list
All battery cells 11 of body arrangement architecture 10.In second of embodiment, as shown in figure 4, cooling component 18 be vertically arranged and
Positioned at the side of battery cell arrangement architecture 10.
Fig. 5 shows the third embodiment, and Fig. 6 shows the 4th kind of embodiment.In fig. 5 and fig., with member illustrated in fig. 3
The identical element of part makes to be presented with like reference characters, and description explanation, main explanation is not repeated in structure something in common
Difference.As shown in figs.5 and 6, cooling component 18 is horizontally disposed, and cooling component 18 can be set to be arranged in battery cell
The upper surface (such as Fig. 5) of structure 10 or the lower surface (such as Fig. 6) that battery cell arrangement architecture 10 is set.
Fig. 7 shows the 5th kind of embodiment.In Fig. 7, element identical with element illustrated in fig. 3 uses identical attached drawing
Label indicates, and description explanation is not repeated in structure something in common, mainly illustrates difference.As shown in fig. 7, battery module
1 includes two battery cell arrangement architectures 10 (being also possible to the battery cell arrangement architecture 10 greater than two), one of electricity
Pond monomer arrangement architecture 10 is the first battery cell arrangement architecture 101, another is neighbouring with the first battery cell arrangement architecture 101
Battery cell arrangement architecture 10 be the second battery cell arrangement architecture 102.
The explosion-proof valve of the explosion-proof valve 116 of first battery cell arrangement architecture 101 and the second battery cell arrangement architecture 102
116 both face towards fireproof component 17, and fireproof component 17 is located at the explosion-proof valve 116 and the second electricity of the first battery cell arrangement architecture 101
Between the explosion-proof valve 116 of pond monomer arrangement architecture 102.At this point, fireproof component 17 is arranged in the first battery cell arrangement architecture 101
Explosion-proof valve 116 and the second battery cell arrangement architecture 102 explosion-proof valve 116 between, fireproof component 17 is by the first battery cell
The battery cell 11 of arrangement architecture 101 and the battery cell 11 of the second battery cell arrangement architecture 102 separate, and avoid that heat has occurred
Battery cell 11 out of control causes battery cell 11 adjacent thereto and thermal runaway also occurs.Fireproof component 17 selects high temperature resistant material
Matter, fusing point are greater than 900 DEG C.Preferably, fireproof component 17 is micarex.
Fig. 8 shows the 6th kind of embodiment, and in fig. 8, element identical with element illustrated in fig. 3 uses identical attached drawing
Label indicates, and description explanation is not repeated in structure something in common, mainly illustrates difference.As shown in figure 8, battery module
1 includes two battery cell arrangement architectures 10 (being also possible to the battery cell arrangement architecture 10 greater than two), one of electricity
Pond monomer arrangement architecture 10 is the first battery cell arrangement architecture 101, another is neighbouring with the first battery cell arrangement architecture 101
Battery cell arrangement architecture 10 be the second battery cell arrangement architecture 102.The explosion-proof valve of first battery cell arrangement architecture 101
116 and second battery cell arrangement architecture 102 explosion-proof valve 116 mutually back to.
Fireproof component 17 includes the first fireproof component 171 and the second fireproof component 172, the first battery cell arrangement architecture
101 explosion-proof valve 116 both faces towards the first fireproof component 171, and the explosion-proof valve 116 of the second battery cell arrangement architecture 102 both faces towards
Second fireproof component 172.At this point, the explosion-proof valve 116 of the first battery cell arrangement architecture 101 is facing one direction, first is faced
Fireproof component 171, and the explosion-proof valve 116 of the second battery cell arrangement architecture 102 faces the second fireproof component to another direction
172, the battery cell 11 of 11 structure of battery cell 11 and the second battery cell of the first battery cell arrangement architecture 101 is mutually not
Interference.Fireproof component 17 selects high temperature resistant material, and fusing point is greater than 900 DEG C.Preferably, fireproof component 17 is micarex.
Battery module 1 further includes cooling component 18, and the setting of cooling component 18 is in the first battery cell arrangement architecture 101 and the
Between two battery cell arrangement architectures 102, cooling component 18 is used to cool down the battery cell of the first battery cell arrangement architecture 101
11 and second battery cell arrangement architecture 102 battery cell 11, at this point it is possible to save a cooling component 18.
Fig. 9 shows the 7th kind of embodiment, and in Fig. 9, element identical with element illustrated in fig. 4 uses identical attached drawing
Label indicates, and description explanation is not repeated in structure something in common, mainly illustrates difference.As shown in figure 9, battery module
1 includes more than two battery cell arrangement architectures 10 of (arrow z direction) arrangement along the vertical direction.Two vertical directions
Battery cell arrangement architecture 10 in (arrow z direction) can share a fireproof component 17 and a cooling structure simultaneously
Part 18.
Figure 10 shows the 8th kind of embodiment, and in Figure 10, element identical with element illustrated in fig. 9 uses identical attached
Icon note indicates, and description explanation is not repeated in structure something in common, mainly illustrates difference.As shown in Figure 10, battery
Module 1 includes two battery cell arrangement architectures 10 (being also possible to the battery cell arrangement architecture 10 greater than two), wherein one
A battery cell arrangement architecture 10 is the first battery cell arrangement architecture 101, another and the first battery cell arrangement architecture 101
Neighbouring battery cell arrangement architecture 10 is the second battery cell arrangement architecture 102.
Fireproof component 17 includes the first fireproof component 171 and the second fireproof component 172, two vertical direction (arrow z institutes
Finger direction) on the explosion-proof valves 116 of two the first battery cell arrangement architectures 101 both face towards the first fireproof component 171, two are perpendicular
The explosion-proof valve 116 of two second battery cell arrangement architectures 102 of the histogram in (arrow z direction) both faces towards the second fire prevention
Component 172.Fireproof component 17 selects high temperature resistant material, and fusing point is greater than 900 DEG C.Preferably, fireproof component 17 is micarex.
Figure 11 shows the 9th kind of embodiment, and in Figure 11, element identical with element illustrated in fig. 8 uses identical attached
Icon note indicates, and description explanation is not repeated in structure something in common, mainly illustrates difference.As shown in figure 11, battery
Module 1 includes more than two first battery cell arrangement architectures 101 of (arrow z direction) arrangement along the vertical direction, with
And more than two second battery cell arrangement architectures 102 that (arrow z direction) arranges along the vertical direction.
More than two first battery cell arrangement architectures 101 of (arrow z direction) arrangement is anti-along the vertical direction
Quick-fried valve 116 both faces towards the first fireproof component 171, along the vertical direction more than two second electricity of (arrow z direction) arrangement
The explosion-proof valve 116 of pond monomer arrangement architecture 102 both faces towards the second fireproof component 172.
Figure 12 shows the tenth kind of embodiment, and in Figure 12, element identical with element illustrated in fig. 7 uses identical attached
Icon note indicates, and description explanation is not repeated in structure something in common, mainly illustrates difference.As shown in figure 12, battery
Module 1 includes more than two first battery cell arrangement architectures 101 of (arrow z direction) arrangement along the vertical direction, with
And more than two second battery cell arrangement architectures 102 that (arrow z direction) arranges along the vertical direction.
In other embodiments, battery module (1) includes the two or more of (arrow z direction) arrangement along the vertical direction
Battery cell arrangement architecture 10.Two are not intended to limit in the battery cell arrangement architecture 10 of vertical direction (arrow z direction)
Layer, can also have two layers or more, such as three layers, four layers etc..Battery cell arrangement architecture 10 includes multiple battery cells 11, multiple
Battery cell 11 arranges in the horizontal direction (length direction of arrow x meaning or the width direction of arrow y meaning).Horizontal direction
Multiple battery cells 11 in (length direction of arrow x meaning or the width direction of arrow y meaning), can be alternatively arranged,
Might not be close to each other, it spaced apart can also arrange, also in the protection scope of the present embodiment.
As shown in Figure 13 and Figure 14, in the present embodiment, battery cell arrangement architecture 10 include multiple battery cells 11 with
And multiple busbar connectors 12 of the multiple battery cells 11 of electrical connection, multiple battery cells 11 (length of arrow x meaning in the horizontal direction
The width direction of direction or arrow y meaning) arrangement.Collection plate 15 is located at the side of battery cell arrangement architecture 10 and sets vertically
It sets, collection plate 15 is connected with the battery cell 11 in battery cell arrangement architecture 10.
In the present embodiment, battery cell arrangement architecture 10 further includes two end plates 16, and two end plates 16 are located at multiple
The both ends that (length direction of arrow x meaning or the width direction of arrow y meaning) arranges in the horizontal direction of battery cell 11.
In a particular embodiment, the side gluing of battery cell 11 is Nian Jie with adjacent battery cell 11, multiple battery lists
End plate 16 is arranged in the both ends of body 11, forms battery cell arrangement architecture 10.Pass through remittance between battery cell 11 and battery cell 11
Stream row 12 realizes electrical connection, and collection plate 15 is arranged in 12 position of busbar connector of battery cell arrangement architecture 10.Battery cell is arranged
Array structure 10 lies low on lower cover 14, and battery cell arrangement architecture 10 is fixed by structure glue and 14 phase of lower cover, battery cell row
The upper surface of array structure 10 is fixed by structure glue and 13 phase of upper cover.The first fixed part is stretched out in the two sides of upper cover 13 and lower cover 14
131 and second fixed part 141.
As shown in figure 15, the first fixed part 131 is fixed to each other with the second fixed part 141 by Nian Jie, it should be noted that
The cross sectional shape of first fixed part 131 and the second fixed part 141 is U-shaped, V-arrangement, L shape, Z-shaped, any of them or a variety of
Combination.
As shown in figure 16, battery cell 11 include electrode assembly 111, battery case 112, electrode terminal connector 113 with
And cover board 114.Battery case 112 can have hexahedral shape or other shapes.Battery case 112 has accommodate electrod component
111 and electrolyte inner space, and battery case 112 have opening.Electrode assembly 111 is contained in battery case 112,
The covering opening of cover board 114, and for electrode assembly 111 to be enclosed in battery case 112, electrode assembly 111 and electrode terminal
It is electrically connected between 115 by electrode terminal connector 113.In the present embodiment, there are two electrode terminal connectors 113, that is, distinguishes
For positive terminal sub- connecting member 113 and negative terminal connector 113.Battery case 112 can be by such as aluminium, aluminium alloy or plastics etc.
Material manufacture.
Electrode assembly 111 is contained in battery case 112, and electrode assembly 111 includes the first pole piece 1111, the second pole piece
1112 and the diaphragm 1113 that is set between the first pole piece 1111 and the second pole piece 1112.First pole piece 1111 can be anode
The polarity of piece or negative electrode tab, the second pole piece 1112 and the first pole piece 1111 on the contrary, correspondingly, the second pole piece 1112 be negative electrode tab or
Positive plate.Wherein, diaphragm 1113 is the insulator between the first pole piece 1111 and the second pole piece 1112.Electrode assembly 111
It can be takeup type structure (such as Figure 17), be also possible to laminated structure (such as Figure 18).
It is illustratively positive plate with the first pole piece 1111, the second pole piece 1112 is illustrated for negative electrode tab.Similarly, exist
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 113 is crossed, is electrically connected between negative electrode lug and negative electrode terminal by negative terminal connector 113.
The substantially hexahedron structure of battery case 112, battery case 112 include two first surfaces 1121 and two second
Surface 1122, the area of first surface 1121 are greater than the area of second surface 1122.In battery module 1, each battery cell
11 two second surfaces 1122 face each other, each battery in the horizontal direction (such as length direction of arrow x direction)
Two first surfaces 1121 of monomer 11 face each other along the vertical direction (arrow z direction).
As shown in Figure 16 and Figure 17, when electrode assembly 111 is takeup type structure, electrode assembly 111 is flat, and
And the outer surface of electrode assembly 111 includes two flat horizontal surfaces 1114, (arrow z is signified along the vertical direction for two flat horizontal surfaces 1114
Direction) it faces each other, i.e., flat horizontal surface 1114 is faced each other with first surface 1121.The substantially hexahedron structure of electrode assembly 111,
Flat horizontal surface 1114 is roughly parallel to winding axis and is the maximum outer surface of area.Flat horizontal surface 1114 can be opposed flattened table
Face, it is not required that be pure-surface.
As shown in figure 18, when electrode assembly 111 is laminated structure, the first pole piece 1111, diaphragm 1113 and the second pole
Piece 1112 is laminated along the vertical direction (arrow z direction), i.e. the surface of the first pole piece 1111 and the mutual face of first surface 1121
It is right.
Thickness direction of the electrode assembly 111 in charge and discharge process inevitably along the first pole piece 1111 expands
It is (maximum along the direction expansive force perpendicular to flat horizontal surface 1114 in the electrode assembly 111 of takeup type structure；In laminated structure
Electrode assembly 111 in, it is maximum along the stacking direction expansive force of the first pole piece 1111 and the second pole piece 1112).
In the present embodiment, electrode assembly 111 can select takeup type structure or laminated structure.When electrode assembly 111
When for takeup type structure, flat horizontal surface 1114 is towards vertical direction (arrow z direction).When electrode assembly 111 is stacked knot
When structure, the first pole piece 1111 and the second pole piece 1112 are laminated along the vertical direction (arrow z direction).As it can be seen that electrode assembly 111
Laminated structure is still either used using takeup type structure, electrode assembly 111 applies maximum swelling power to battery case 112
Direction both facing to vertical direction.
And in the prior art, in the battery cell 11 of battery module 1, electrode assembly 111 applies maximum to battery case 112
The direction of expansive force is all directed towards horizontal direction, the ruler due to the size of battery module 1 in the horizontal direction compared to vertical direction
It is very little big more (for example, the chassis height size by vehicle is limited, to need more battery cells 11 heap in the horizontal direction
Folded, expansive force accumulation is big), therefore, the expansive force that existing battery module 1 is subject in the horizontal direction is very big, it is therefore desirable to
Very thick end plate is arranged to resist expansive force in the horizontal direction two sides of battery module 1, and end plate thickening can reduce battery module 1
Energy density.And in the present embodiment, electrode assembly 111 is directed towards the direction that battery case 112 applies maximum swelling power perpendicular
Histogram is to and 11 numbers of the battery cell stacked on vertical direction are less, therefore compared with the prior art, can greatly reduce electricity
The maximum swelling power of pond module 1.
In addition, since battery cell 11 can also generate gas inside battery case 112 in charge and discharge process, generation
Gas can apply active force to battery case 112, expand outward to aggravate battery case 112.Due to the first table of the application
The area in face 1121 is greater than the area of second surface 1122, and two first surfaces 1121 in battery cell 11 are along vertical side
The maximum force direction applied to the gas for facing each other, therefore generating to battery case 112 is also directed towards vertical direction.Phase
Than further reducing the maximum swelling power of battery module 1 in the prior art.
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 (14)
1. a kind of battery module characterized by comprising
Battery cell arrangement architecture (10), the battery cell arrangement architecture (10) include multiple battery cells (11) and are electrically connected
Multiple busbar connectors (12) of the multiple battery cell (11) are connect, the multiple battery cell (11) arranges in the horizontal direction；
Upper cover (13)；And
Lower cover (14), the battery cell arrangement architecture (10) are arranged between the upper cover (13) and the lower cover (14)；
Wherein, the battery cell (11) includes electrode assembly (111) and battery case (112), and the electrode assembly (111) is held
Be contained in the battery case (112), the electrode assembly (111) include the first pole piece (1111), the second pole piece (1112) with
And it is set to the diaphragm (1113) between first pole piece (1111) and second pole piece (1112)；
The electrode assembly (111) be takeup type structure and be it is flat, the outer surface of the electrode assembly (111) includes two
Flat horizontal surface (1114), two flat horizontal surfaces (1114) face each other along the vertical direction；Or, the electrode assembly (111) is folded
Slice structure, first pole piece (1111), the diaphragm (1113) and second pole piece (1112) are vertically stacked.
2. battery module according to claim 1, it is characterised in that: the upper cover (13) include the first mainboard (130) and
First fixed part (131), first fixed part (131) are connected to first mainboard (130) and towards far from first masters
The direction of plate (130) extends；
The lower cover (14) includes the second mainboard (140) and the second fixed part (141), and second fixed part (141) is connected to
Second mainboard (140) and towards far from second mainboard (140) direction extend；
First fixed part (131) is oppositely arranged and is fixedly connected with second fixed part (141).
3. battery module according to claim 2, it is characterised in that: first fixed part (131) and/or described second
Fixed part (141) extends along the horizontal direction.
4. battery module according to claim 2, it is characterised in that: the both ends of first mainboard (130) are provided with
First fixed part (131), the both ends of second mainboard (140) are provided with second fixed part (141).
5. battery module according to claim 1, it is characterised in that: the battery module (1) further includes collection plate (15),
The collection plate (15) is located at the side of the battery cell arrangement architecture (10) and is vertically arranged, the collection plate (15) and institute
The battery cell (11) stated in battery cell arrangement architecture (10) is connected.
6. battery module according to claim 1, it is characterised in that: the battery module (1) further includes fireproof component
(17), the fireproof component (17) is vertically arranged, the multiple battery cell (11) of the battery cell arrangement architecture (10)
It is provided with explosion-proof valve (116), all explosion-proof valves (116) of the battery cell arrangement architecture (10) both face towards described anti-
Fiery component (17).
7. battery module according to claim 6, it is characterised in that: the battery module (1) includes more than two electricity
Pond monomer arrangement architecture (10), one of them described battery cell arrangement architecture (10) are the first battery cell arrangement architecture
(101), another is the with the neighbouring battery cell arrangement architecture (10) of the first battery cell arrangement architecture (101)
Two battery cell arrangement architectures (102)；
The explosion-proof valve (116) and the second battery cell arrangement architecture of the first battery cell arrangement architecture (101)
(102) the explosion-proof valve (116) faces each other, and the fireproof component (17) is located at the first battery cell arrangement architecture
(101) between the explosion-proof valve (116) of the explosion-proof valve (116) and the second battery cell arrangement architecture (102).
8. battery module according to claim 6, it is characterised in that: the battery module (1) includes more than two electricity
Pond monomer arrangement architecture (10), one of them described battery cell arrangement architecture (10) are the first battery cell arrangement architecture
(101), another is the with the neighbouring battery cell arrangement architecture (10) of the first battery cell arrangement architecture (101)
Two battery cell arrangement architectures (102)；
The explosion-proof valve (116) and the second battery cell arrangement architecture of the first battery cell arrangement architecture (101)
(102) the explosion-proof valve (116) mutually back to；
The fireproof component (17) includes the first fireproof component (171) and the second fireproof component (172), the first battery list
The explosion-proof valve (116) of body arrangement architecture (101) both faces towards first fireproof component (171), second battery cell
The explosion-proof valve (116) of arrangement architecture (102) both faces towards second fireproof component (172).
9. battery module according to claim 1, it is characterised in that: the battery module (1) includes more than two electricity
Pond monomer arrangement architecture (10), one of them described battery cell arrangement architecture (10) are the first battery cell arrangement architecture
(101), another is the with the neighbouring battery cell arrangement architecture (10) of the first battery cell arrangement architecture (101)
Two battery cell arrangement architectures (102)；
The battery module (1) further includes cooling component (18), and the cooling component (18) is arranged in first battery cell
Between arrangement architecture (101) and the second battery cell arrangement architecture (102), the cooling component (18) is for described in cooling
The battery cell (11) of first battery cell arrangement architecture (101) and the second battery cell arrangement architecture (102)
The battery cell (11).
10. -9 described in any item battery modules according to claim 1, it is characterised in that: the battery module (1) includes along institute
State more than two battery cell arrangement architectures (10) of vertical direction arrangement.
11. a kind of battery pack characterized by comprising
Storage case, and
Multiple battery modules (1) as described in claim 1-10 any one in the storage case are set.
12. battery pack according to claim 11, it is characterised in that: the upper cover (13) include the first mainboard (130) and
First fixed part (131), first fixed part (131) are connected to first mainboard (130) and towards far from first masters
The direction of plate (130) extends, and the lower cover (14) includes the second mainboard (140) and the second fixed part (141), and described second is fixed
Portion (141) is connected to second mainboard (140) and extends towards the direction far from second mainboard (140)；
The storage case includes case lid (2) and cabinet (3), and the cabinet (3) is provided with fixed beam (31), the fixed beam
(31) surface of the cabinet (3), first fixed part (131), second fixed part (141) and the fixation are protruded from
Beam (31) three is oppositely arranged, and first fixed part (131) and second fixed part (141) are fixed on the fixed beam
(31) on.
13. battery pack according to claim 12, it is characterised in that: it is solid that first fixed part (131) is provided with first
To determine hole (1311), second fixed part (141) is provided with the second fixation hole (1411), and the battery pack further includes bolt (5),
The bolt (5) passes through first fixation hole (1311) and second fixation hole (1411) and connects with the fixed beam (31)
It connects, the battery module (1) is fixed on the cabinet (3).
14. battery pack according to claim 12, it is characterised in that: the battery pack further includes press strip (4), and described first
Fixed part (131) and second fixed part (141) are pressed between the press strip (4) and the fixed beam (31), by institute
Battery module (1) is stated to be fixed on the cabinet (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920291886.8U CN209447949U (en) | 2019-03-07 | 2019-03-07 | A kind of battery module and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920291886.8U CN209447949U (en) | 2019-03-07 | 2019-03-07 | A kind of battery module and battery pack |
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| Publication Number | Publication Date |
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| CN209447949U true CN209447949U (en) | 2019-09-27 |
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| CN201920291886.8U Active CN209447949U (en) | 2019-03-07 | 2019-03-07 | A kind of battery module and battery pack |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020140643A1 (en) * | 2018-12-30 | 2020-07-09 | 宁德时代新能源科技股份有限公司 | Battery pack and vehicle |
| WO2020177721A1 (en) * | 2019-03-07 | 2020-09-10 | 宁德时代新能源科技股份有限公司 | Battery module and battery pack |
| CN111668398A (en) * | 2019-03-07 | 2020-09-15 | 宁德时代新能源科技股份有限公司 | Battery module and battery pack |
| CN112331983A (en) * | 2019-11-29 | 2021-02-05 | 宁德时代新能源科技股份有限公司 | Battery module, device and failure processing method of failure battery monomer |
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2019
- 2019-03-07 CN CN201920291886.8U patent/CN209447949U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020140643A1 (en) * | 2018-12-30 | 2020-07-09 | 宁德时代新能源科技股份有限公司 | Battery pack and vehicle |
| WO2020177721A1 (en) * | 2019-03-07 | 2020-09-10 | 宁德时代新能源科技股份有限公司 | Battery module and battery pack |
| CN111668398A (en) * | 2019-03-07 | 2020-09-15 | 宁德时代新能源科技股份有限公司 | Battery module and battery pack |
| CN111668527A (en) * | 2019-03-07 | 2020-09-15 | 宁德时代新能源科技股份有限公司 | Battery module and battery pack |
| US11251487B2 (en) | 2019-03-07 | 2022-02-15 | Contemporary Amperex Technology Co., Limited | Battery module and battery pack |
| CN112331983A (en) * | 2019-11-29 | 2021-02-05 | 宁德时代新能源科技股份有限公司 | Battery module, device and failure processing method of failure battery monomer |
| CN112331983B (en) * | 2019-11-29 | 2021-10-08 | 宁德时代新能源科技股份有限公司 | Battery module, device and failure processing method of failure battery monomer |
| EP3930083A4 (en) * | 2019-11-29 | 2022-06-08 | Contemporary Amperex Technology Co., Limited | Battery module, device, and failure treatment method for failed battery cell |
| US11588186B2 (en) | 2019-11-29 | 2023-02-21 | Contemporary Amperex Technology Co., Limited | Battery module, device, and failure handling method for failed battery cell |
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