CN109216594A - Battery unit and battery modules - Google Patents
Battery unit and battery modules Download PDFInfo
- Publication number
- CN109216594A CN109216594A CN201710524961.6A CN201710524961A CN109216594A CN 109216594 A CN109216594 A CN 109216594A CN 201710524961 A CN201710524961 A CN 201710524961A CN 109216594 A CN109216594 A CN 109216594A
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- battery
- insulating film
- battery unit
- facet
- end plate
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- 239000012528 membrane Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 7
- 239000000178 monomer Substances 0.000 claims description 5
- 208000029152 Small face Diseases 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052493 LiFePO4 Inorganic materials 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
- H01M50/15—Lids or covers characterised by their shape for prismatic or rectangular cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/155—Lids or covers characterised by the material
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention belongs to power battery technology fields, it is related to a kind of battery unit and battery modules, the battery unit includes single battery, insulating film and upper insulating cover, the single battery includes battery case, the intracorporal battery core of the battery case is arranged in and the battery cover board of the battery case end is arranged in, the upside of the battery unit is arranged in the upper insulating cover, and the insulating film is at least coated on the side of the battery case.The battery unit and battery modules of the embodiment of the present invention realize the lightweight of battery modules under the intensity for not reducing battery modules, while reducing structural member, keep the good mechanical strength of battery modules and electric safety.
Description
Technical field
The invention belongs to power battery technology fields, more particularly to a kind of battery unit and battery modules.
Background technique
Improve the importance that battery energy density is current power battery design, the method for conventional raising energy density
Mainly there are two aspects.One is by replacement and modification to material, using the higher material of energy density；The second is passing through
Design to battery structure, strategy makes same battery modules obtain higher energy density.
The energy density that battery is improved by material, is always the emphasis that each company currently researches and develops, such as from LiFePO4
It is changed to ternary material.And changed by the design to battery structure to obtain higher energy density, the method generallyd use
Be exactly lightweight and densification, light weight method especially best with light weight effect but current, majority be all by reduction (or
Remove) section structural or reduce structural member material thickness, though the method can reduce battery pack weight to a certain extent,
The decline that will cause battery pack intensity reduces the security performance of battery pack.How while reducing structural member, battery is kept
The good mechanical strength of mould group and electric safety are also the emphasis that current each company is persistently studied.
Summary of the invention
The technical problems to be solved by the present invention are: for existing battery modules by reducing (or removing) part-structure
Part or the material thickness for reducing structural member realize battery modules lightweight, cause what battery pack intensity and security performance declined to ask
Topic provides a kind of battery unit and battery modules.
In order to solve the above technical problems, on the one hand, the embodiment of the present invention provides a kind of battery unit, including single battery,
Insulating film and upper insulating cover, the single battery include battery case, setting the intracorporal battery core of the battery case and setting exist
The battery cover board of the battery case end, the upper insulating cover are arranged on the outside of the battery cover board, and the insulating film is at least
It is coated on the side of the battery case.
Optionally, the insulating film includes extension, and the extension protrudes the battery by the top of the insulating film
Cover board and inwardly fold are formed, and the extension is pressed on the edge of the battery cover board by the upper insulating cover.
Optionally, the upper insulating cover is in nut cap shape, and the top of the single battery is embedded in the upper insulating cover；
The top edge of insulating film overlap joint Chong Die with the lower edge of the upper insulating cover.
Optionally, the upper insulating cover is placed on the battery cover board, and the insulating film is coated on the battery case
Side and upper insulating cover at least partly surface.
Optionally, the insulating film is coated on the side of the battery case, is provided on the bottom surface of the battery case
Lower insulating cover.
Optionally, the lower insulating cover is in nut cap shape, and the bottom end of the single battery is embedded in the lower insulating cover；
The lower edge of insulating film overlap joint Chong Die with the upper edge of the lower insulating cover.
Optionally, the side of the battery case includes big face and facet, and the loaf includes the first big face and second largest
Face, the facet include the first facet and the second facet, and the first big face, the first facet, the second largest face and the second facet are suitable
Secondary to connect the side for forming the battery case, the area in the big face is greater than the area of the facet；
The first big face and the second largest face are oppositely arranged, and first facet and the second facet are oppositely arranged.
Optionally, the first gum layer, the insulating film and electricity are provided between the insulating film and the side of battery case
The side of pond shell is bonded together by first gum layer.
Optionally, the sealing of the insulating film is located in first facet and/or the second facet.
Optionally, the sealing part of the insulating film is formed with double membrane structure, the width k of the double membrane structure meet with
Lower condition:
2x≥3k≥x；
Wherein, x is the width of the first facet or the second facet.
On the other hand, the embodiment of the present invention provides a kind of battery modules comprising along a preset direction stack it is multiple on
The insulating film of the battery unit stated, two adjacent battery units is mutually bonded on the preset direction, will be multiple
The battery unit is integrally connected.
It is provided with the second gum layer on the outside of the insulating film between the two neighboring battery unit, adjacent two
A battery unit is bonded together by second gum layer.
Optionally, the battery modules further include first end plate, the second end plate, the first elasticity part and the second elastic part
The front end of first battery unit on the preset direction is arranged in part, the first end plate, and second end plate is set
The rear end of the last one battery unit on the preset direction is set, the first elasticity part pre-pressing is in described first
Between end plate and first battery unit, the second elasticity part pre-pressing is in second end plate and the last one institute
It states between battery unit.
Optionally, first battery unit is provided with the first driving plate towards the first end plate on one side, described
First elasticity part is arranged between first driving plate and first end plate；
The last one described battery unit is provided with the second driving plate, first bullet towards second end plate on one side
Power component is arranged between second driving plate and the second end plate.
Optionally, the battery modules further include the band around setting in multiple battery units one week, the band
The first end plate, the second end plate and multiple battery units are tied up into one.
Battery unit according to an embodiment of the present invention and battery modules eliminate various connection functions in the prior art
Structural member, the insulating film of two adjacent battery units is mutually bonded on preset direction, multiple battery units connected
One, under the intensity for not reducing battery modules, realizes the lightweight of battery modules, while reducing structural member, keeps
Battery modules good mechanical strengths and electric safety.In addition, upper insulating cover is arranged in the top of single battery, in single battery
In manufacturing process, so that it may form, in this way, not having in addition be added in battery modules when assembling mould group for the monomer electricity that insulate
The top plate or top cover of pond upper end, save installation space, are also convenient for the installation operation of single battery.In addition, the top of single battery
4, portion angle is covered by upper insulating cover, the top corner location for the single battery that avoids damaging during routine use.
Detailed description of the invention
Fig. 1 is the exploded view of the battery unit for the battery modules that one embodiment of the invention provides；
Fig. 2 is the stacking schematic diagram of the multiple battery units for the battery modules that one embodiment of the invention provides；
Fig. 3 is the unfolding state figure of the insulating film for the battery modules that one embodiment of the invention provides；
Fig. 4 is another visual angle figure of Fig. 3；
Fig. 5 is the schematic diagram of the sealing part of the insulating film for the battery modules that one embodiment of the invention provides；
Fig. 6 be another embodiment of the present invention provides battery modules multiple battery units stacking schematic diagram；
Fig. 7 be another embodiment of the present invention provides battery modules battery unit exploded view；
Fig. 8 be another embodiment of the present invention provides battery modules insulating film unfolding state figure；
Fig. 9 is another visual angle figure of Fig. 8；
Figure 10 be another embodiment of the present invention provides battery modules insulating film sealing part schematic diagram；
Figure 11 is the exploded view for the battery modules that further embodiment of this invention provides；
Figure 12 is another visual angle figure of Figure 11.
Appended drawing reference in specification is as follows:
1, battery unit；10, upper insulating cover；101, terminal fairlead；102, liquid injection hole；103, explosion-proof valve opening；11, monomer
Battery；1111, the first big face；1112, the first facet；1113, the second largest face；1114, the second facet；112, battery cover board；12,
Insulating film；121, folding line；122, the first gum layer；123, the second gum layer；1231, the first big face gum layer；1232, second largest
Face gum layer；1233, the first facet gum layer；1234, the second facet gum layer；124, it seals；125, double membrane structure；13,
Lower insulating cover；14, electrode terminal；15, fluid-filling structure；16, explosion-proof valve；
3, first end plate；
4, the second end plate；
5, the first elasticity part；
6, the second elasticity part.
Specific embodiment
In order to which the technical problems, technical solutions and beneficial effects solved by the present invention is more clearly understood, below in conjunction with
Accompanying drawings and embodiments, the present invention is further described in detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
As shown in Figures 1 and 2, the battery modules that one embodiment of the invention provides are more including stacking along a preset direction
A battery unit 1, the battery unit 1 include single battery 11, insulating film 12 and upper insulating cover 10, and the single battery 11 wraps
It includes battery case (battery case is wrapped up by insulating film 12, thus is not shown in the figure), be arranged in the intracorporal battery core of the battery case
And the battery cover board 112 of the battery case end is set, the upper of the battery unit 1 is arranged in the upper insulating cover 10
Side, the insulating film 12 are coated on the side and bottom surface of the battery case.The insulation of the battery unit 1 of adjacent two
Film 12 is mutually bonded on the preset direction, and multiple battery units 1 are integrally connected.
Preferably, the upper insulating cover 10 is in nut cap shape, and the top of the single battery 11 is embedded in the upper insulating cover
10, it is protected with the top quadrangle to single battery 11.
In the present embodiment, the insulating film 12 includes extension, and the extension is prominent by the top of the insulating film 12
The battery cover board 112 and inwardly fold are formed, and the extension is pressed on the battery cover board by the upper insulating cover 10
10 edge.
As shown in Figures 1 and 2, the position on the upper insulating cover 10 corresponding to the electrode terminal 14 of the single battery 11
It is provided with terminal fairlead 101, the electrode terminal 14 of the single battery 11 is pierced by the terminal fairlead 101；It is described exhausted
The position of fluid-filling structure 15 on edge lid 10 corresponding to the single battery 11 is provided with liquid injection hole 102, the single battery 11
Fluid-filling structure 15 exposed by the liquid injection hole.Corresponding to the explosion-proof valve 16 of the single battery 1 on the upper insulating cover 10
Position is provided with explosion-proof valve opening 103, and the explosion-proof valve 16 of the single battery 1 is located in the explosion-proof valve opening 103.
As shown in Figure 1, the single battery 11 is rectangular cell, the side of the battery case includes big face and facet,
The loaf includes the first big face 1111 and the second largest face 1113, and the facet includes the first facet 1112 and the second facet
1114, the first big face 1111 and the second largest face 1113 are oppositely arranged, 1114 phase of first facet 1112 and the second facet
To setting, the first big face 1111, the first facet 1112, the second largest face 1113 and the second facet 1114 are sequentially connected with to form institute
The side of battery case is stated, the area in the big face is greater than the area of the facet.
As shown in Figures 3 and 4, it is square under 12 unfolded state of insulating film, is provided with folding line on the insulating film 12
121, the folding of the insulating film 12 under unfolded state is coated on the side of the battery case along the folding line 121.Exhibition
The insulating film 12 under open state has opposite first surface and second surface, and the first surface is provided with the first gum
Layer 122, the second surface are provided with the second gum layer 123, the partial or complete covering described first of the first gum layer 122
Surface.Second gum layer 123 include matched with the described first big 1111 shape of face the first big face gum layer 1231, with it is described
Second largest 1113 shape of face matches the second largest face gum layer 1232, the first facet gum layer 1233 and the second facet gum layer
1234。
After forming battery unit 1, first back is provided between the insulating film 12 and the side of battery case
The side of glue-line 122, the insulating film 12 and battery case is bonded together by first gum layer 122.Also, it is located at
The outside of the insulating film 12 between the two neighboring battery unit 1 is provided with second gum layer 123, two neighboring
The battery unit 1 is bonded together by second gum layer 123.
By the way that the first gum layer 122, the second gum layer 123 is arranged, so that being not necessarily to additional viscose, work between single battery 11
Skill is simple.
In the present embodiment, as shown in figure 5, the sealing 124 of the insulating film 12 is located at first facet 1112 and/or
In two facets 1114.Double membrane structure 125, the width of the double membrane structure 125 are formed at the sealing 124 of the insulating film 12
Degree k meets the following conditions:
2x≥3k≥x；
Wherein, x is the width of the first facet 1112 and the second facet 1114.That is, the width k of double membrane structure 125 is located at
The one third of the width of first facet 1112 is to 2/3rds this sections.
In addition, the battery modules further include clamp device, the first end plate 21, the second end plate 22 and multiple institutes are surrounded
State the band 23 of setting in battery unit 1 one weeks.The band 23 is by the first end plate 21, the second end plate 22 and multiple electricity
Pool unit 1 ties up one, to form whole battery modules.The first end plate 21 and first institute on the preset direction
State battery unit 1 relatively, second end plate 22 is opposite with the last one described battery unit 1 on the preset direction.
Battery unit according to an embodiment of the present invention and battery modules eliminate various connection functions in the prior art
Structural member, the insulating film of two adjacent battery units is mutually bonded on preset direction, multiple battery units connected
One, under the intensity for not reducing battery modules, realizes the lightweight of battery modules, while reducing structural member, keeps
Battery modules good mechanical strengths and electric safety.In addition, upper insulating cover is arranged in the top of single battery, in single battery
In manufacturing process, so that it may form, in this way, not having in addition be added in battery modules when assembling mould group for the monomer electricity that insulate
The top plate or top cover of pond upper end, save installation space, are also convenient for the installation operation of single battery.In addition, the top of single battery
4, portion angle is covered by upper insulating cover, the top corner location for the single battery that avoids damaging during routine use.
Fig. 6 and Fig. 7 shows the battery modules of another embodiment of the present invention, different to battery modules shown in fig. 6 from Fig. 1
Place is that the insulating film 12 is coated on the side of the battery case, is additionally provided on the bottom surface of the battery case
Lower insulating cover 13.
Preferably, the lower insulating cover 13 is in nut cap shape, and the top of the single battery 11 is embedded in the lower insulating cover
13, it is protected with the bottom end quadrangle to single battery 11.The lower edge of the insulating film 12 is upper with the lower insulating cover 13
Edge overlapping overlap joint.With this, continuous insulation system is formed, to realize the insulation of entire single battery 11.
In another embodiment not shown in the figure, the upper insulating cover 10 is placed on the battery cover board 112, described
Insulating film 12 is coated on the side of the battery case and at least partly surface of upper insulating cover 10.
In the present embodiment, the bottom surface due to not needing battery case is coated, thus, the size of insulating film 12, folding line 121 and
Gum is different.Specifically, as can be seen from figures 8 and 9, the insulating film 12 under unfolded state has phase in the present embodiment
The first surface and second surface of back, the first surface are provided with the first gum layer 122, and the second surface is provided with second
Gum layer 123, the partial or complete covering first surface of the first gum layer 122, first gum layer 121 are adhered to
On the side of the battery case；Second gum layer 123 includes big face gum layer 1231 and facet gum layer 1232.
After forming battery unit 1, first back is provided between the insulating film 12 and the side of battery case
The side of glue-line 122, the insulating film 12 and battery case is bonded together by first gum layer 122.Also, it is located at
The outside of the insulating film 12 between the two neighboring battery unit 1 is provided with second gum layer 123, two neighboring
The battery unit 1 is bonded together by second gum layer 123.
In the present embodiment, as shown in figure 5, the sealing 124 of the insulating film 12 is located at first facet 1112 and/or
In two facets 1114.Double membrane structure 125, the width of the double membrane structure 125 are formed at the sealing 124 of the insulating film 12
Degree k meets the following conditions:
2x≥3k≥x；
Wherein, x is the width of the first facet or the second facet.That is, the width k of double membrane structure 125 is located at the first facet
Width one third to 2/3rds this sections.
Figure 11 and Figure 12 shows the battery modules of further embodiment of this invention, not with Fig. 1 to battery modules shown in fig. 6
It is with place, the battery modules further include first end plate 3, the second end plate 4, the first elasticity part 5 and the second elasticity part
6, the front end for first battery unit 1 that the first end plate 3 is arranged on the preset direction, second end plate 4
The rear end of the last one being arranged on preset direction battery unit 1,5 pre-pressing of the first elasticity part is in institute
State between first end plate 3 and first battery unit 1,6 pre-pressing of the second elasticity part in second end plate 6 with
Between the last one described battery unit 1.
First end plate 3 is that first battery unit 1 provides a power backward, and the second end plate 4 is the last one institute
It states battery unit and 1 one forward power is provided, herein forward and backward for the preset direction.In this way, passing through first end
Plate 3 and the second end plate 3 are to form multiple battery units 1 of battery modules to provide a pressing force, and then by multiple battery units 1
It is pressed together.
When installation, the position of first end plate 3 and the second end plate 4 in battery modules is fixed, in this way, can pass through first
Elasticity part 5 and the second elasticity part 6 constantly apply the pressure of inward at both ends to multiple battery units 1.
In the present embodiment, first elasticity part 5 and the second elasticity part 6 can be metal clips or spring.
When the battery unit 1 in battery modules expands deformation, due to 1 liang of battery unit big face dilatancy compared with
Greatly, apply biggish expansive force to the first end plate 3 at battery modules both ends and the second end plate end 4, at this time the first elasticity part 5 and
Second elasticity part 6 deforms, and absorbs and alleviates the expansive force that battery unit 1 generates, prevents the first of the both ends of battery modules
The deformation at end plate 3 and the second end plate end 4 and the mistake of the bonding piece (insulating film 12) along battery modules length direction (preset direction)
Effect, promotes the structural strength of battery modules.
In addition, in Figure 11 and a modified embodiment of embodiment illustrated in fig. 12, first battery unit is towards institute
That states first end plate is provided with the first driving plate on one side, and first elasticity part is arranged in first driving plate and first end
Between plate；The last one described battery unit is provided with the second driving plate, first bullet towards second end plate on one side
Power component is arranged between second driving plate and the second end plate.
Relative to embodiment shown in Figure 11 and Figure 12, in the embodiment, increase the first elastic force by the first driving plate
The elastic force of component acts on the area on the battery unit, and the elastic force for increasing the second elasticity part by the second driving plate is made
The first elasticity part and the second elasticity part is avoided directly to connect with battery unit with this with the area on the battery unit
Battery cell breakage, scratch etc. caused by touching.
In addition, the top of the insulating film can be located at the battery in a modified embodiment of embodiment shown in Fig. 1
Under the upper surface of cover board.At this point, the top edge of insulating film overlap joint Chong Die with the lower edge of the upper insulating cover.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (15)
1. a kind of battery unit, which is characterized in that including single battery, insulating film and upper insulating cover, the single battery includes
Battery case is arranged in the intracorporal battery core of the battery case and the battery cover board of the battery case end is arranged in, it is described on
Insulating cover is arranged on the outside of the battery cover board, and the insulating film is at least coated on the side of the battery case.
2. battery unit according to claim 1, which is characterized in that the insulating film includes extension, the extension
It is formed by the prominent battery cover board in the top of the insulating film and turning down inwardly, the upper insulating cover is by the extension pressure
Tightly at the edge of the battery cover board.
3. battery unit according to claim 1, which is characterized in that the upper insulating cover is in nut cap shape, the monomer
The top of battery is embedded in the upper insulating cover；
The top edge of insulating film overlap joint Chong Die with the lower edge of the upper insulating cover.
4. battery unit according to claim 1, which is characterized in that the upper insulating cover is placed on the battery cover board
On, the insulating film is coated on the side of the battery case and at least partly surface of upper insulating cover.
5. battery unit according to claim 1, which is characterized in that the insulating film is coated on the side of the battery case
Face is provided with lower insulating cover on the bottom surface of the battery case.
6. battery unit according to claim 5, which is characterized in that the lower insulating cover is in nut cap shape, the monomer
The bottom end of battery is embedded in the lower insulating cover；
The lower edge of insulating film overlap joint Chong Die with the upper edge of the lower insulating cover.
7. battery unit according to claim 1, which is characterized in that the side of the battery case includes big face and small
Face, the loaf include the first big face and the second largest face, and the facet includes the first facet and the second facet, and described first is big
Face, the first facet, the second largest face and the second facet are sequentially connected with the side to form the battery case, and the area in the big face is big
In the area of the facet；
The first big face and the second largest face are oppositely arranged, and first facet and the second facet are oppositely arranged.
8. battery unit according to claim 1, which is characterized in that set between the insulating film and the side of battery case
It is equipped with the first gum layer, the side of the insulating film and battery case is bonded together by first gum layer.
9. battery unit according to claim 7, which is characterized in that the sealing of the insulating film is located at first facet
And/or second in facet.
10. battery unit according to claim 9, which is characterized in that the sealing part of the insulating film is formed with duplicature
The width k of structure, the double membrane structure meets the following conditions:
2x≥3k≥x；
Wherein, x is the width of the first facet or the second facet.
11. a kind of battery modules, which is characterized in that multiple claims 1 to 10 including stacking along a preset direction are any one
Battery unit described in, the insulating film of two adjacent battery units are mutually bonded on the preset direction, will
Multiple battery units are integrally connected.
12. battery modules according to claim 11, which is characterized in that between the two neighboring battery unit
The second gum layer is provided on the outside of the insulating film, the two neighboring battery unit is bonded in by second gum layer
Together.
13. battery modules according to claim 11, which is characterized in that the battery modules further include first end plate,
First institute on the preset direction is arranged in two end plates, the first elasticity part and the second elasticity part, the first end plate
State the front end of battery unit, the rear end for the last one battery unit that second end plate is arranged on the preset direction,
The first elasticity part pre-pressing is between the first end plate and first battery unit, second elasticity part
Pre-pressing is between second end plate and the last one described battery unit.
14. battery modules according to claim 13, which is characterized in that first battery unit is towards described first
End plate is provided with the first driving plate on one side, the first elasticity part setting first driving plate and first end plate it
Between；
The last one described battery unit is provided with the second driving plate, first elastic part towards second end plate on one side
Part is arranged between second driving plate and the second end plate.
15. battery modules according to claim 13, which is characterized in that the battery modules further include around multiple described
The band of setting in battery unit one week, the band tie up the first end plate, the second end plate and multiple battery units
One.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710524961.6A CN109216594B (en) | 2017-06-30 | 2017-06-30 | Battery unit and battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710524961.6A CN109216594B (en) | 2017-06-30 | 2017-06-30 | Battery unit and battery module |
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| Publication Number | Publication Date |
|---|---|
| CN109216594A true CN109216594A (en) | 2019-01-15 |
| CN109216594B CN109216594B (en) | 2022-03-15 |
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| CN201710524961.6A Active CN109216594B (en) | 2017-06-30 | 2017-06-30 | Battery unit and battery module |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112072044A (en) * | 2020-10-14 | 2020-12-11 | 东莞新能安科技有限公司 | Battery and electric device |
| WO2021098622A1 (en) * | 2019-11-20 | 2021-05-27 | 宁德时代新能源科技股份有限公司 | Battery module, battery pack and apparatus |
| CN114026737A (en) * | 2019-06-21 | 2022-02-08 | 三星Sdi株式会社 | Battery pack |
| CN114142139A (en) * | 2021-10-18 | 2022-03-04 | 上汽大众汽车有限公司 | Compound bipolar battery module and battery pack |
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| CN114142139A (en) * | 2021-10-18 | 2022-03-04 | 上汽大众汽车有限公司 | Compound bipolar battery module and battery pack |
| CN114142139B (en) * | 2021-10-18 | 2023-06-23 | 上汽大众汽车有限公司 | Composite bipolar battery module and battery pack |
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