CN209729968U - A kind of battery module and battery pack - Google Patents
A kind of battery module and battery pack Download PDFInfo
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- CN209729968U CN209729968U CN201920290525.1U CN201920290525U CN209729968U CN 209729968 U CN209729968 U CN 209729968U CN 201920290525 U CN201920290525 U CN 201920290525U CN 209729968 U CN209729968 U CN 209729968U
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- battery cell
- battery
- arrangement architecture
- cell arrangement
- supporting 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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Abstract
The utility model relates to a kind of battery module, including battery cell arrangement architecture, the first lid and the second lid, first lid is connected to second lid, and the battery cell arrangement architecture is arranged between first lid and second lid；First lid includes the first supporting part and the second supporting part, and first supporting part and second supporting part are split type structure；The battery module includes more than two battery cell arrangement architectures, and the first battery cell arrangement architecture is oppositely arranged with first supporting part, and the second battery cell arrangement architecture is oppositely arranged with second supporting part.It is different from the prior art, the utility model does not need that other components are additionally added, to improve the energy density of battery module due to transporting using the first lid.
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.
Battery module includes battery cell arrangement architecture, busbar connector, upper cover and lower cover, and battery cell arrangement architecture includes more
Multiple busbar connectors of a battery cell and the multiple battery cells of electrical connection, battery cell arrangement architecture are contained in upper cover and lower cover
In the accommodating chamber surrounded.In assembled battery module, if first multiple battery cells are fixed and connect multiple busbar connectors
To be formed if battery cell arrangement architecture is transported to accommodating chamber again by battery cell arrangement architecture, then need to arrange in battery cell
Additionally setting is used for the component of transhipment on array structure, but can reduce the energy density of battery module in this way.
Therefore, when carrying out assembled battery module, usually first multiple battery cells are sequentially placed into accommodating chamber and to more
A battery cell is fixed, and then reconnects multiple busbar connectors.However, when battery module has multiple battery cell arrangement knots
Structure, and when the distance between multiple battery cell arrangement architectures are smaller, the then connection of busbar connector become abnormal and difficult (connect at this time
The frock clamp of busbar connector is connect without operating space).
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,
First lid；And
Second lid, first lid are connected to second lid, and the battery cell arrangement architecture is arranged in institute
It states between the first lid and second lid；
Wherein, first lid includes the first supporting part and the second supporting part, first supporting part and described the
Two supporting parts are split type structure；
The battery module includes more than two battery cell arrangement architectures, one of them described battery cell row
Array structure is the first battery cell arrangement architecture, another described battery cell arrangement architecture is the second battery cell arrangement knot
Structure；
The first battery cell arrangement architecture is oppositely arranged with first supporting part, the second battery cell arrangement
Structure is oppositely arranged with second supporting part.
As a kind of preferred structure of the utility model, the battery cell includes battery case, cover board and electrode terminal,
The cover board is connected to the battery case, and the electrode terminal is set on the cover board and is electrically connected to the busbar connector；
The electrode terminal of the first battery cell arrangement architecture is arranged toward or away from second battery cell
Structure；And/or
The electrode terminal of the second battery cell arrangement architecture is arranged toward or away from first battery cell
Structure.
As a kind of preferred structure of the utility model, first supporting part includes the first support face being vertically arranged,
First support face is located at one far from the second battery cell arrangement architecture of the first battery cell arrangement architecture
Side, the electrode terminal of the first battery cell arrangement architecture is towards the second battery cell arrangement architecture；And/or
Second supporting part includes the second support face being vertically arranged, second support face) it is located at second electricity
The side far from the first battery cell arrangement architecture of pond monomer arrangement architecture, the second battery cell arrangement architecture
The electrode terminal is towards the first battery cell arrangement architecture.
As a kind of preferred structure of the utility model, the battery cell includes electrode assembly and battery case, described
Electrode assembly is contained in the battery case, and the electrode assembly includes the first pole piece, the second pole piece and is set to described
Diaphragm between first pole piece and second pole piece；
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 is laminated structure, and first pole piece, the diaphragm and second pole piece are along vertical side
To stacking.
As a kind of preferred structure of the utility model, the battery module includes three or more battery cell rows
Array structure, wherein another described battery cell arrangement architecture is third battery cell arrangement architecture, the third battery cell
Arrangement architecture is arranged between the first battery cell arrangement architecture and the second battery cell arrangement architecture；
First lid further includes third supporting part, the third battery cell arrangement architecture and the third supporting part
It is oppositely arranged.
As a kind of preferred structure of the utility model, one end of the third supporting part is mutually solid with first supporting part
Fixed, the other end of the third supporting part is mutually fixed with second supporting part.
As a kind of preferred structure of the utility model, first supporting part and/or second supporting part pass through glue
It is pasted on the battery cell arrangement architecture.
As a kind of preferred structure of the utility model, pass through weldering between first supporting part and second supporting part
It connects, rivet or is bonded and be connected.
As a kind of preferred structure of the utility model, the battery module further includes fixing component, first support
Portion is connected by the fixing component with second supporting part.
As a kind of preferred structure of the utility model, the fixing component is water-cooled plate, first supporting part and institute
It states the second supporting part and passes through heat-conducting glue respectively and mutually fixed with the fixing component.
As a kind of preferred structure of the utility model, first lid further includes that the first fixed part and second are fixed
Portion, first fixed part are connected to first supporting part and extend towards the direction far from first supporting part, described the
Two fixed parts are connected to second supporting part and extend towards the direction far from second supporting part；
Second lid includes mainboard, third fixed part and the 4th fixed part, the third fixed part and described the
Four fixed parts are connected to the both ends of the mainboard and extend towards the direction far from the mainboard；
First fixed part is oppositely arranged and is fixedly connected with the third fixed part, second fixed part with it is described
4th fixed part is oppositely arranged and is fixedly connected.
As a kind of preferred structure of the utility model, the battery module further includes collection plate, and the collection plate is vertical
Setting, the collection plate are connected with the electrode terminal of the battery cell.
Be different from the prior art, the first lid include the first supporting part and the second supporting part, first supporting part and
Second supporting part is split type structure.Therefore, multiple battery cells first can be sequentially placed into the first supporting part, it will be more
A battery cell is fixed on the first supporting part, then connects multiple busbar connectors, and the first supporting part is recycled to be transported through.Equally
, multiple battery cells, which are sequentially placed into the second supporting part, also can achieve same effect.At this point, due to being turned using the first lid
Fortune, does not need that other components are additionally added, 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, first lid includes that the first fixed part and second are fixed
Portion, first fixed part are connected to first supporting part, and second fixed part is connected to second supporting part；
Second lid includes mainboard, third fixed part and the 4th fixed part, the third fixed part and described the
Four fixed parts are connected to the both ends of the mainboard；
The storage case includes case lid and cabinet, and the cabinet is provided with the first fixed beam and the second fixed beam, institute
It states the first fixed beam and second fixed beam protrudes from the surface of the cabinet, first fixed part, the third are fixed
Portion and the first fixed beam three are oppositely arranged, and it is solid that first fixed part, the third fixed part are fixed on described first
Determining on beam, second fixed part, the 4th fixed part and the second fixed beam three are oppositely arranged, second fixed part,
4th fixed part is fixed in second fixed beam.
As a kind of preferred structure of the utility model, the battery pack further includes press strip, first fixed part and institute
It states third fixed part to be pressed between the press strip and first fixed beam, second fixed part and the 4th fixed part
It is pressed between the press strip and second fixed beam.
Be different from the prior art, the first lid include the first supporting part and the second supporting part, first supporting part and
Second supporting part is split type structure.Therefore, multiple battery cells first can be sequentially placed into the first supporting part, it will be more
A battery cell is fixed on the first supporting part, then connects multiple busbar connectors, and the first supporting part is recycled to be transported through.Equally
, multiple battery cells, which are sequentially placed into the second supporting part, also can achieve same effect.At this point, due to being turned using the first lid
Fortune, does not need that other components are additionally added, 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 explosive view of the described two battery cell arrangement architectures of the first embodiment；
Fig. 3 is the assembling schematic diagram of the described two battery cell arrangement architectures of the first embodiment；
Fig. 4 is the structural schematic diagram of battery module described in the first embodiment；
Fig. 5 is the explosive view of battery module and fixing component described in the first embodiment；
Fig. 6 is the assembling schematic diagram of battery module and fixing component described in the first embodiment
Fig. 7 is the assembling schematic diagram of three battery cell arrangement architectures described in second of embodiment；
Fig. 8 is the structural schematic diagram of battery module described in second of embodiment；
Fig. 9 is the installation diagram of battery cell arrangement architecture and the first supporting part described in specific embodiment；
Figure 10 is the explosive view of battery cell arrangement architecture described in specific embodiment；
Figure 11 is the structural schematic diagram of battery cell arrangement architecture described in specific embodiment；
Figure 12 is the explosive view of battery cell described in specific embodiment；
Figure 13 is the sectional view that electrode assembly described in specific embodiment is takeup type structure；
Figure 14 is the sectional view that electrode assembly described in specific embodiment 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,
103, third 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, the first lid,
131, the first supporting part,
1311, the first support face,
132, the second supporting part,
1321, the second support face,
133, third supporting part,
134, the first fixed part,
135, the second fixed part,
14, the second lid,
140, mainboard,
141, third fixed part,
142, the 4th fixed part,
15, collection plate,
16, end plate,
17, fixing component,
2, case lid,
3, cabinet,
31, the first fixed beam,
32, the second fixed beam,
4, press strip.
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 this specification, it is to be understood that "upper", "lower" described in the embodiment of the present application, "left", "right"
The equal nouns of locality are described with angle shown in the drawings, should not be construed as the restriction to the embodiment of the present application.In addition, In
In context, it is also necessary to which understanding can not only when mentioning an element and being connected to another element "upper" or "lower"
It is enough connected directly between another element "upper" or "lower", another element "upper" can also be indirectly coupled to by intermediary element
Or "lower".
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.
Optionally, storage case includes case lid 2 and cabinet 3, and multiple first fixed beams 31 and multiple are provided on cabinet 3
Second fixed beam 32.First fixed beam 31 and the second fixed beam 32 are substantially parallel.
In the present embodiment, protrusion that the first fixed beam 31 and the second fixed beam 32 can raise upward for the bottom of cabinet 3
Beam or the bottom that cabinet 3 is welded on separately as components.In addition, in other embodiments, the first fixed beam 31 and second
Fixed beam 32 can be set on case lid 2.
Battery pack further includes press strip 4, and the both ends of battery module 1 are pressed on the first fixed beam 31, the second fixed beam by press strip 4
On 32, battery module 1 is fixed on cabinet 3.At this point, battery module 1 is fixed by press strip 4.
In the present embodiment, the first fixed part 134, third fixed part 141 and 31 three of the first fixed beam are oppositely arranged, the
Two fixed parts 135, the 4th fixed part 142 and 32 three of the second fixed beam are oppositely arranged.Third fixed part 141 is fixed first
The lower section in portion 134, the 4th fixed part 142 is in the lower section of the second fixed part 135.
As shown in Figure 1, the first fixed part 134 and third fixed part 141 are pressed between press strip 4 and the first fixed beam 31,
One end of battery module 1 to be fixed on cabinet 3.Second fixed part 135 and the 4th fixed part 142 are pressed on press strip 4 and
Between two fixed beams 32, the other end of battery module 1 is fixed on cabinet 3.It should be noted that battery module 1 is fixed
Fixed form on cabinet 3 is not limited to the mode that press strip 4 compresses in through this embodiment, can also pass through bolt, weldering
The fixed forms such as connect, rivet.
As shown in Fig. 2, in the present embodiment, battery module 1 includes battery cell arrangement architecture 10, the first lid 13 and the
Two lids 14, battery cell arrangement architecture 10 are arranged between the first lid 13 and the second lid 14.First lid 13 includes the
One supporting part 131 and the second supporting part 132, the first supporting part 131 and the second supporting part 132 are split type structure.First support
Portion 131 and one end of the second lid 14 are mutually fixed, and the second supporting part 132 and the other end of the second lid 14 are mutually fixed.Fig. 2 extremely
In the embodiment of Fig. 4 and Fig. 7 to Fig. 8, the top of the second lid 14 is arranged in the first lid 13, in the embodiment of Fig. 5 to Fig. 6
In, the lower section of the second lid 14 is arranged in the first lid 13.
First lid 13 includes the first fixed part 134 and the second fixed part 135, and the first fixed part 134 is connected to first
Supporting part 131 and extend towards the direction far from the second battery cell arrangement architecture 102, the second fixed part 135 is connected to second and holds
Support portion 132 and towards far from the first battery cell arrangement architecture 101 direction extend；Second lid 14 is solid including mainboard 140, third
Determine portion 141 and the 4th fixed part 142, third fixed part 141 and the 4th fixed part 142 are connected to the both ends of mainboard 140
And extend towards the direction far from mainboard 140.
First supporting part 131 and the second supporting part 132 are split type structure.Split type structure mentioned here, refers to
First supporting part 131 of the first lid 13 is not that the same sheet fabrication forms with the second supporting part 132, i.e. the first supporting part
131 and second supporting part 132 be two individual components, after battery module 1 assembles, the first supporting part 131 and the second supporting part
132 can be connection, be also possible to unconnected.In the present embodiment, the first supporting part 131 is divided with the second supporting part 132
Do not play the role of support battery cell arrangement architecture 10.
In the assembling process of battery module 1, first multiple battery cells 11 of battery cell arrangement architecture 10 are sequentially placed into
First supporting part 131, multiple battery cells 11 are fixed on the first supporting part 131, then connect multiple busbar connectors 12, then
It is transported through using the first supporting part 131.
Alternatively, multiple battery cells 11 of battery cell arrangement architecture 10 are first sequentially placed into the second supporting part 132, it will
Multiple battery cells 11 are fixed on the second supporting part 132, then connect multiple busbar connectors 12, recycle the second supporting part 132
It is transported through.
At this point, not needing that other components are additionally added, to improve battery module due to transporting using the first lid 13
1 energy density.
Optionally, as shown in Figures 2 to 6, in the first embodiment, battery module 1 includes two battery cell arrangements
Structure 10, one of battery cell arrangement architecture 10 are the first battery cell arrangement architecture 101, the arrangement of another battery cell
Structure 10 is the second battery cell arrangement architecture 102；First battery cell arrangement architecture 101 is set relatively with the first supporting part 131
It sets, the second battery cell arrangement architecture 102 is oppositely arranged with the second supporting part 132.
Optionally, the first supporting part 131 (length direction of arrow x meaning or width of arrow y meaning in the horizontal direction
Direction) length and width that the extends length and width horizontally extending with the first battery cell arrangement architecture 101 respectively
It is roughly equal.Likewise, the second supporting part 132 (length direction of arrow x meaning or the width of arrow y meaning in the horizontal direction
Spend direction) length and width that the extends length and width horizontally extending with the second battery cell arrangement architecture 102 respectively
It spends roughly equal.
It should be noted that the length and width of the first supporting part 131 and the length and width of the second supporting part 132,
The specific embodiment being not limited in above structure can also be more than or less than the using the length of the first supporting part 131
The width of the length of one battery cell arrangement architecture 101, the first supporting part 131 is more than or less than the first battery cell arrangement architecture
101 width.Similarly, the length of the second supporting part 132 is more than or less than the length of the second battery cell arrangement architecture 102, the
The width of two supporting parts 132 is more than or less than the width of the second battery cell arrangement architecture 102.
Optionally, as shown in Figures 2 to 4, the first supporting part 131 includes be vertically arranged (such as arrow z direction) the
One support face 1311, the first support face 1311 are located at arranging far from the second battery cell for the first battery cell arrangement architecture 101
The side of structure 102, the electrode terminal 115 of the first battery cell arrangement architecture 101 is towards the second battery cell arrangement architecture
102.Second supporting part 132 includes the second support face 1321 for being vertically arranged (such as arrow z direction), the second support face 1321
Positioned at the side far from the first battery cell arrangement architecture 101 of the second battery cell arrangement architecture 102, the second battery cell row
The electrode terminal 115 of array structure 102 is towards the first battery cell arrangement architecture 101.
In the present embodiment, the electrode terminal 115 of the first battery cell arrangement architecture 101 is arranged towards the second battery cell to be tied
Structure 102, and the electrode terminal 115 of the second battery cell arrangement architecture 102 is towards the first battery cell arrangement architecture 101.At this point,
Can in order to multiple battery cells 11 of the first battery cell arrangement architecture 101 and the second battery cell arrangement architecture 102 it
Between busbar connector 12 welding, the electrode terminal 115 and the second battery list of the first battery cell arrangement architecture 101 can be effectively reduced
The distance between electrode terminal 115 of body arrangement architecture 102 improves the energy density of battery module 1.
Optionally, as shown in Figure 5 to Figure 6, battery module 1 further includes fixing component 17, and the first supporting part 131 passes through fixation
Component 17 is connected with the second supporting part 132.
Optionally, fixing component 17 is water-cooled plate, and the first supporting part 131 and the second supporting part 132 pass through heat-conducting glue respectively
It is fixed with 17 phase of fixing component.At this point, fixing component 17 is water-cooled plate, the first supporting part 131 leads to respectively with the second supporting part 132
It crosses heat-conducting glue to be fixedly connected with fixing component 17, by heat that battery cell 11 generates, by the first supporting part 131, (or second held
Support portion 132), heat-conducting glue be transferred in water-cooled plate, battery cell 11 is cooled down by water-cooled plate.It should be noted that solid
Determine the embodiment that component 17 is not limited to water-cooled plate, there can also be other embodiments.
Optionally, as shown in Fig. 7 to Fig. 8, in second of embodiment, battery module 1 includes three battery cell arrangements
Structure 10, wherein another battery cell arrangement architecture 10 is third battery cell arrangement architecture 103, the arrangement of third battery cell
Structure 103 is arranged between the first battery cell arrangement architecture 101 and the second battery cell arrangement architecture 102.First lid 13
It further include third supporting part 133, third supporting part 133 is set between the first supporting part 131 and the second supporting part 132, third
Battery cell arrangement architecture 103 is oppositely arranged with third supporting part 133.
Battery module 1 be not limited to only include a third battery cell arrangement architecture 103, also may include two with
On third battery cell arrangement architecture 103, that is to say, that battery module 1 have more than four battery cell arrangement architectures
10.Accordingly, the first lid 13 also can be set there are two above third supporting part 133, and each third supporting part 133 is distinguished
It is oppositely arranged with corresponding third battery cell arrangement architecture 103.
Optionally, one end of third supporting part 133 is fixed with 131 phase of the first supporting part, the other end of third supporting part 133
It is fixed with 132 phase of the second supporting part.In other embodiments, the both ends of third supporting part 133 pass through bridging arrangement and respectively
One supporting part 131,132 phase of the second supporting part are fixed.The both ends of third supporting part 133 can pass through welding, riveting or bonding
It is fixed with the first supporting part 131,132 phase of the second supporting part.
In all embodiments, the first supporting part 131 and/or the second supporting part 132 are affixed on battery cell by gluing and arrange
Array structure 10.Optionally, by welding, riveting or Nian Jie it is connected between the first supporting part 131 and the second supporting part 132.
As shown in figure 9, in the present embodiment, first multiple battery cells 11 of battery cell arrangement architecture 10 are sequentially placed into
On first supporting part 131 of the first lid 13, multiple battery cells 11 are fixed on the first supporting part 131, then connection is more
A busbar connector 12 recycles the first supporting part 131 to be transported through.At this point, not needed additional due to being transported using the first lid 13
Other components are added, to improve the energy density of battery module 1.
As shown in figs.10 and 11, 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 electrode terminal 115 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 of battery cell 11 (length direction of arrow x meaning or the width direction of arrow y meaning) in the horizontal direction.
In a particular embodiment, the side gluing of battery cell 11 is with Nian Jie with adjacent battery cell 11, multiple batteries
End plate 16 is arranged in the both ends of monomer 11, and battery cell 11 and end plate 16 are bonded by glue.Lead between multiple battery cells 11
It crosses busbar connector 12 and realizes electrical connection.
As shown in figure 12, battery cell 11 includes electrode assembly 111, battery case 112, electrode terminal connector 113, lid
Plate 114 and electrode terminal 115.Battery case 112 can have hexahedral shape or other shapes.Battery case 112, which has, to be held
The inner space of nano electrode component 111 and electrolyte, and battery case 112 has opening.Electrode assembly 111 is contained in battery
In shell 112, the covering opening of cover board 114, and for electrode assembly 111 to be enclosed in battery case 112, electrode assembly 111
It is electrically connected between electrode terminal 115 by electrode terminal connector 113.In the present embodiment, electrode terminal connector 113 has two
It is a, i.e. respectively positive terminal connector 113 and negative terminal connector 113.Battery case 112 can be closed by such as aluminium, aluminium
Gold or plastic or other 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 13), be also possible to laminated structure (such as Figure 14).
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.Between anode ear and positive electrode terminal 115
It is electrically connected by positive terminal connector 113, passes through 113 electricity of negative terminal connector between negative electrode lug and negative electrode terminal 115
Connection.
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 13 and Figure 14, 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 13, 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 (15)
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
Connect multiple busbar connectors (12) of the multiple battery cell (11)；
First lid (13)；And
Second lid (14), first lid (13) are connected to second lid (14), the battery cell arrangement architecture
(10) it is arranged between first lid (13) and second lid (14)；
Wherein, first lid (13) includes the first supporting part (131) and the second supporting part (132), first support
Portion (131) and second supporting part (132) are split type structure；
The battery module (1) includes more than two battery cell arrangement architectures (10), one of them described battery list
Body arrangement architecture (10) is the first battery cell arrangement architecture (101), another described battery cell arrangement architecture (10) is the
Two battery cell arrangement architectures (102)；
The first battery cell arrangement architecture (101) is oppositely arranged with first supporting part (131), the second battery list
Body arrangement architecture (102) is oppositely arranged with second supporting part (132).
2. battery module according to claim 1, it is characterised in that: the battery cell (11) includes battery case
(112), cover board (114) and electrode terminal (115), the cover board (114) are connected to the battery case (112), the electrode
Terminal (115) is set on the cover board (114) and is electrically connected to the busbar connector (12)；
The electrode terminal (115) of the first battery cell arrangement architecture (101) is toward or away from the second battery list
Body arrangement architecture (102)；And/or
The electrode terminal (115) of the second battery cell arrangement architecture (102) is toward or away from the first battery list
Body arrangement architecture (101).
3. battery module according to claim 2, feature exist: first supporting part (131) includes being vertically arranged
First support face (1311), first support face (1311) are located at the separate of the first battery cell arrangement architecture (101)
The side of the second battery cell arrangement architecture (102), the electrode tip of the first battery cell arrangement architecture (101)
Sub (115) are towards the second battery cell arrangement architecture (102)；And/or
Second supporting part (132) includes the second support face (1321) being vertically arranged, second support face (1321) position
It is described in the side far from the first battery cell arrangement architecture (101) of the second battery cell arrangement architecture (102)
The electrode terminal (115) of second battery cell arrangement architecture (102) is towards the first battery cell arrangement architecture
(101)。
4. battery module according to claim 2 or 3, it is characterised in that: the battery cell (11) includes electrode assembly
(111), the electrode assembly (111) is contained in the battery case (112), and the electrode assembly (111) includes the first pole
It piece (1111), the second pole piece (1112) and is set between first pole piece (1111) and second pole piece (1112)
Diaphragm (1113)；
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 laminated structure, first pole piece (1111), the diaphragm (1113) and described second
Pole piece (1112) is vertically stacked.
5. battery module according to claim 1-3, it is characterised in that: the battery module (1) includes three
Above battery cell arrangement architecture (10), wherein another described battery cell arrangement architecture (10) is third battery list
Body arrangement architecture (103), the third battery cell arrangement architecture (103) are arranged in the first battery cell arrangement architecture
(101) between the second battery cell arrangement architecture (102)；
First lid (13) further includes third supporting part (133), the third battery cell arrangement architecture (103) with it is described
Third supporting part (133) is oppositely arranged.
6. battery module according to claim 5, it is characterised in that: one end of the third supporting part (133) with it is described
First supporting part (131) is mutually fixed, and the other end of the third supporting part (133) is mutually fixed with second supporting part (132).
7. battery module according to claim 1, it is characterised in that: first supporting part (131) and/or described second
Supporting part (132) is affixed on the battery cell arrangement architecture (10) by gluing.
8. battery module according to claim 1, it is characterised in that: first supporting part (131) is held with described second
It is connected between support portion (132) by welding, riveting or bonding.
9. battery module according to claim 1, it is characterised in that: the battery module (1) further includes fixing component
(17), first supporting part (131) is connected by the fixing component (17) with second supporting part (132).
10. battery module according to claim 9, it is characterised in that: the fixing component (17) is water-cooled plate, described the
One supporting part (131) is mutually fixed by heat-conducting glue with the fixing component (17) respectively with second supporting part (132).
11. battery module according to claim 1, it is characterised in that: first lid (13) further includes first fixed
Portion (134) and the second fixed part (135), first fixed part (134) are connected to first supporting part (131) and towards remote
Direction from the second battery cell arrangement architecture (102) extends, and second fixed part (135) is connected to described second and holds
Support portion (132) and towards far from the first battery cell arrangement architecture (101) direction extend；
Second lid (14) includes mainboard (140), third fixed part (141) and the 4th fixed part (142), the third
Fixed part (141) and the 4th fixed part (142) are connected to the both ends of the mainboard (140)；
First fixed part (134) is oppositely arranged and is fixedly connected with the third fixed part (141), second fixed part
(135) it is oppositely arranged and is fixedly connected with the 4th fixed part (142).
12. battery module according to claim 2, it is characterised in that: the battery module (1) further includes collection plate
(15), the collection plate (15) is vertically arranged, the electrode terminal of the collection plate (15) and the battery cell (11)
(115) it is connected.
13. a kind of battery pack characterized by comprising
Storage case, and
Multiple battery modules (1) as described in claim 1-12 any one in the storage case are set.
14. battery pack according to claim 13, it is characterised in that: first lid (13) includes the first fixed part
(134) and the second fixed part (135), first fixed part (134) is connected to first supporting part (131), and described
Two fixed parts (135) are connected to second supporting part (132)；
Second lid (14) includes mainboard (140), third fixed part (141) and the 4th fixed part (142), the third
Fixed part (141) and the 4th fixed part (142) are connected to the both ends of the mainboard (140)；
The storage case includes case lid (2) and cabinet (3), and the cabinet (3) is provided with the first fixed beam (31) and second
Fixed beam (32), first fixed beam (31) and second fixed beam (32) protrude from the surface of the cabinet (3), described
First fixed part (134), the third fixed part (141) and first fixed beam (31) three are oppositely arranged, and described first
Fixed part (134), the third fixed part (141) are fixed on first fixed beam (31), second fixed part
(135), the 4th fixed part (142) and second fixed beam (32) three are oppositely arranged, second fixed part (135), institute
The 4th fixed part (142) is stated to be fixed on second fixed beam (32).
15. battery pack according to claim 14, it is characterised in that: the battery pack further includes press strip (4), and described first
Fixed part (134) and the third fixed part (141) are pressed between the press strip (4) and first fixed beam (31), institute
State the second fixed part (135) and the 4th fixed part (142) be pressed on the press strip (4) and second fixed beam (32) it
Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920290525.1U CN209729968U (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 |
|---|---|---|---|
| CN201920290525.1U CN209729968U (en) | 2019-03-07 | 2019-03-07 | A kind of battery module and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209729968U true CN209729968U (en) | 2019-12-03 |
Family
ID=68685508
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920290525.1U Active CN209729968U (en) | 2019-03-07 | 2019-03-07 | A kind of battery module and battery pack |
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| Country | Link |
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| CN (1) | CN209729968U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020177738A1 (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 |
| WO2023155097A1 (en) * | 2022-02-17 | 2023-08-24 | Shanghai Xuan Yi New Energy Development Co., Ltd. | Battery pack, method for forming battery pack and electric vehicle |
-
2019
- 2019-03-07 CN CN201920290525.1U patent/CN209729968U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020177738A1 (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 |
| WO2023155097A1 (en) * | 2022-02-17 | 2023-08-24 | Shanghai Xuan Yi New Energy Development Co., Ltd. | Battery pack, method for forming battery pack and electric vehicle |
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