CN207031327U - One side glue material and secondary cell - Google Patents
One side glue material and secondary cell Download PDFInfo
- Publication number
- CN207031327U CN207031327U CN201720884420.XU CN201720884420U CN207031327U CN 207031327 U CN207031327 U CN 207031327U CN 201720884420 U CN201720884420 U CN 201720884420U CN 207031327 U CN207031327 U CN 207031327U
- Authority
- CN
- China
- Prior art keywords
- glue
- hole
- base material
- secondary cell
- battery core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 239000003292 glue Substances 0.000 title claims abstract description 234
- 239000000463 material Substances 0.000 title claims abstract description 147
- 238000003780 insertion Methods 0.000 claims abstract description 12
- 230000037431 insertion Effects 0.000 claims abstract description 12
- 238000009826 distribution Methods 0.000 claims description 10
- 238000003491 array Methods 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 18
- 238000004806 packaging method and process Methods 0.000 description 10
- 239000004814 polyurethane Substances 0.000 description 5
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- -1 polyethylene terephthalate Polymers 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 241000208340 Araliaceae Species 0.000 description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 208000002925 dental caries Diseases 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 235000008434 ginseng Nutrition 0.000 description 2
- 150000004678 hydrides Chemical class 0.000 description 2
- 238000004643 material aging Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- HKKJCFWKEDEXBE-UHFFFAOYSA-N ethene;2-methylbuta-1,3-diene;styrene Chemical compound C=C.CC(=C)C=C.C=CC1=CC=CC=C1 HKKJCFWKEDEXBE-UHFFFAOYSA-N 0.000 description 1
- HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical group C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000005026 oriented polypropylene Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Battery Mounting, Suspending (AREA)
Abstract
This application provides a kind of one side glue material and secondary cell.In a first aspect, one side glue material includes：Base material；And glue, it is bonded on base material.Wherein base material is provided with the through hole of at least one insertion；Glue is without perforation.Alternately, one side glue material includes：Base material；And glue, it is bonded on base material.In second aspect, one side glue material is provided with the through hole of at least one insertion, and each through hole is made up of the perforation of the through hole and glue of base material, and the sectional area of each through hole is minimum in glue side.In the third aspect, secondary cell includes：Battery core；Pack case；And base material, it is arranged between battery core and pack case, base material is provided with the through hole of at least one insertion.Wherein, secondary cell also includes glue.Glue includes：Part I glue, between base material and battery core；Part II glue, between base material and pack case；Part III glue, at least one through hole of base material and by Part I glue and Part II gemel connection.
Description
Technical field
The application is related to field of batteries, more particularly to a kind of one side glue material and secondary cell.
Background technology
Drop performance increasingly attracts attention as a kind of security performance of secondary cell.Prior art is by using glue
Material, the packaging bag (being generally made up of aluminum plastic film) of outside and the battery core of inside are bonded together, limitation battery core is in falling process
Displacement, reduce battery core impact packaging bag closedtop, to improve the anti-dropping capability of secondary cell.
The content of the invention
Packaging bag is easily wrinkled in the prior art, and present inventor is had found mainly due to glue from base material by studying
Surrounding overflow, the center section (part i.e. in periphery S) of base material does not have excessive glue, so the center section of base material and packaging bag
Between be not bonded, because this part packaging bag does not have bonding force, cause whole packaging bag discontinuity and produce stress, because
This easily wrinkles.
In view of the above problems, the purpose of the application is to provide a kind of one side glue material and secondary cell, and it can improve packaging
The resistance to deformation of shell and anti-corrugated ability.
To achieve these goals, in a first aspect, this application provides a kind of one side glue material, it includes：Base material；And
Glue, it is bonded on base material.Wherein base material is provided with the through hole of at least one insertion；Glue is without perforation.
To achieve these goals, in second aspect, this application provides a kind of one side glue material, it includes：Base material；And
Glue, it is bonded on base material.Wherein, one side glue material be provided with least one insertion through hole, each through hole by base material through hole and
The perforation of glue is formed, and the sectional area of each through hole is minimum in glue side.
To achieve these goals, in the third aspect, this application provides a kind of secondary cell, and it includes：Battery core；Packaging
Shell；And base material, it is arranged between battery core and pack case, base material is provided with the through hole of at least one insertion.Wherein, secondary cell is also
Including glue.Glue includes：Part I glue, between base material and battery core；Part II glue, between base material and pack case；
Part III glue, at least one through hole of base material and by Part I glue and Part II gemel connection.
The application's has the beneficial effect that：
In the one side glue material and secondary cell according to the application, for one side glue material when applied to secondary cell, glue can
Spill into and (be located at) outside the periphery of through hole, bonded so as to be formed between the center section of base material and packaging bag, by battery core and
Pack case is clamped securely to improve the resistance to deformation of pack case while together and resists corrugated ability.
Brief description of the drawings
Fig. 1 is the stereogram according to the one side glue material of the application.
Fig. 2 is the sectional view of Fig. 1 one side glue material made along line A-A, and there is shown with the first embodiment of one side glue material
And only base material has through hole.
Fig. 3 is the view similar with Fig. 2, has there is shown with the second embodiment of one side glue material and one side glue material and runs through
Hole.
Fig. 4 is the view similar with Fig. 2, and there is shown with the 3rd embodiment of one side glue material.
Fig. 5 A are the views similar with Fig. 3, and there is shown with the fourth embodiment of one side glue material.
Fig. 5 B are the views similar with Fig. 3, and there is shown with the 5th embodiment of one side glue material.
Fig. 6 is the top view of a Fig. 1 variation.
Fig. 7 is the top view of Fig. 1 another variation.
Fig. 8 is the top view of Fig. 1 another variation.
Fig. 9 is that wherein secondary cell is using shown in Fig. 2 according to the schematic diagram of the first embodiment of the secondary cell of the application
One side glue material and show the first state of glue.
Figure 10 is to use Fig. 2 institutes according to the schematic diagram of the first embodiment of the secondary cell of the application, wherein secondary cell
The one side glue material shown simultaneously shows second of state of glue.
Figure 11 is to use Fig. 2 institutes according to the schematic diagram of the first embodiment of the secondary cell of the application, wherein secondary cell
The one side glue material shown simultaneously shows the third state of glue.
Figure 12 is to use Fig. 3 institutes according to the schematic diagram of the first embodiment of the secondary cell of the application, wherein secondary cell
The one side glue material shown simultaneously shows the 4th kind of state of glue.
Figure 13 is to use Fig. 3 institutes according to the schematic diagram of the first embodiment of the secondary cell of the application, wherein secondary cell
The one side glue material shown simultaneously shows the 5th kind of state of glue.
Figure 14 is to use Fig. 3 institutes according to the schematic diagram of the first embodiment of the secondary cell of the application, wherein secondary cell
The one side glue material shown simultaneously shows the 6th kind of state of glue.
Figure 15 is to use Fig. 4 institutes according to the schematic diagram of the first embodiment of the secondary cell of the application, wherein secondary cell
The one side glue material shown simultaneously shows the 7th kind of state of glue.
Figure 16 is to use Fig. 6 institutes according to the schematic diagram of the first embodiment of the secondary cell of the application, wherein secondary cell
The one side glue material shown simultaneously shows the 8th kind of state of glue.
Figure 17 is to use Fig. 2 institutes according to the schematic diagram of the second embodiment of the secondary cell of the application, wherein secondary cell
The one side glue material shown and the 9th kind of state showing glue.
Figure 18 is to use Fig. 2 institutes according to the schematic diagram of the second embodiment of the secondary cell of the application, wherein secondary cell
The one side glue material shown simultaneously shows the tenth kind of state of glue.
Figure 19 is to use Fig. 2 institutes according to the schematic diagram of the second embodiment of the secondary cell of the application, wherein secondary cell
The one side glue material shown simultaneously shows a kind of the tenth state of glue.
Figure 20 is to use Fig. 3 institutes according to the schematic diagram of the second embodiment of the secondary cell of the application, wherein secondary cell
The one side glue material example shown simultaneously shows the 12nd kind of state of glue.
Figure 21 is to use Fig. 3 institutes according to the schematic diagram of the second embodiment of the secondary cell of the application, wherein secondary cell
The one side glue material shown simultaneously shows the 13rd kind of state of glue.
Figure 22 is according to the schematic diagram of the second embodiment of the secondary cell of the application, wherein shown in secondary cell Fig. 3
Using one side glue material and show the 14th kind of state of glue.
Figure 23 is to use Fig. 4 institutes according to the schematic diagram of the second embodiment of the secondary cell of the application, wherein secondary cell
The one side glue material shown simultaneously shows the 15th kind of state of glue.
Figure 24 is to use Fig. 6 institutes according to the schematic diagram of the second embodiment of the secondary cell of the application, wherein secondary cell
The one side glue material shown simultaneously shows the 16th kind of state of glue.
Figure 25 is that there is shown with the ending of battery core according to the schematic diagram of the 3rd embodiment of the secondary cell of the application
One side glue material shown in one Fig. 6 is set, is wherein represented by dotted lines at the ending of battery core.
Figure 26 is that there is shown with the bottom in battery core to set according to the schematic diagram of the fourth embodiment of the secondary cell of the application
Put the one side glue material shown in a Fig. 6.
Wherein, description of reference numerals is as follows：
1 one side glue material
L central axis
10 through holes
11 base materials
111 through holes
S peripheries
12 glue
120 perforation
121 Part I glue
1211 cavitys
122 Part II glue
1221 cavitys
123 Part III glue
124 Part IV glue
C battery cores
SLBig face
At the top of h
B bottoms
P pack cases
Embodiment
Describe the one side glue material of the application and secondary cell in detail with reference to the accompanying drawings.
Illustrate the one side glue material 1 according to the application first aspect first.
Reference picture 1, Fig. 2, Fig. 4, Fig. 6 to Fig. 8, included according to the one side glue material 1 of the application first aspect：Base material 11；With
And glue 12, it is bonded on base material 11.Wherein base material 11 is provided with the through hole 111 of at least one insertion；Glue 12 is without perforation (i.e. without Fig. 3
With Fig. 5 A, Fig. 5 B perforation 120).
In the one side glue material 1 according to the application first aspect, because glue 12 is without perforation, using the teaching of the invention it is possible to provide more glue is to logical
Hole 111, so that one side glue material 1, when applied to secondary cell described below, glue can spill into and (be located at)
Outside the periphery of through hole 111, so as to which battery core C and pack case P described below are more clamped securely to together, to improve packaging
The resistance to deformation of shell and anti-corrugated ability.Specifically, Fig. 9 to Figure 24 shows some bonding feelings when applied to secondary cell
Condition.
During fabrication, the through hole 111 of base material 11 can be first gone out, glue 12 is bonded in base material 11 again afterwards, you can is obtained
According to the one side glue material 1 of the application first aspect.
On material, base material 11 is selected from polyethylene terephthalate (PET), oriented polypropylene (PP), polyimides
(PI) at least one.When glue 12 can only flow under pressure, glue 12 is pressure sensitive adhesive.Pressure sensitive adhesive be selected from polyurethane,
At least one of polyacrylate, organosilicon, synthetic rubber.When glue 12 can only flow under temperature action, glue 12 is
PUR.PUR is selected from ethene-vinyl acetate polymer (EVA), polyurethane, polyvinyl chloride, polyethylene, synthetic rubber, poly-
At least one of acid amides.When glue 12 can flow under temperature action and pressure effect, glue 12 is hot-fusible pressure-sensitive adhesive.Hot melt
Pressure sensitive adhesive is selected from natural rubber, SBS (SBS) and its hydride (SEBS), benzene
At least one in ethene-isoprene styrene (SIS) block copolymer and its hydride (SEPS), polyurethane, polyolefin
Kind.
For the ease of the excessive glue when in use of one side glue material 1, as shown in Fig. 2 the sectional area of each through hole 111 in the side of glue 12 most
It is small.Preferably, as shown in figure 4, each through hole 111 is in truncated cone-shaped.
In another embodiment, as shown in Fig. 2 each through hole 111 is highly convenient for being formed in cylinder using cylinder design
Through hole 111.
The quantity of through hole 111 is unrestricted.It is preferred that through hole 111 is multiple.The layout of multiple through holes 111 can regard actual raw
Production needs flexible design.For example, as shown in fig. 6, multiple through holes 111 are distributed in the H-shaped of two row a line, three linear arrays；Such as figure
Shown in 7, the multiple rectangular array of through hole 111 distributions；As shown in figure 8, multiple through holes 111 are distributed around the surrounding of base material 11.Fig. 6
The privileged sites that are distributed with beneficial to described battery core C later of H-shaped of multiple through holes 111 be bonded.For example, such as Figure 25
Shown, the row in three linear arrays is placed at the winding ending of battery core (shown in broken lines in fig. 25), and three linear battle arrays
Two row in row are placed in capable both ends (i.e. positioned at the big face S of the battery core C shown in Figure 25LThe top of (being in fig. 25 upper surface)
(in fig. 25 for close to battery core C top h position) and bottom (in fig. 25 for close to battery core C bottom b position).
The H-shaped distribution of certain Fig. 6 multiple through holes 111 can also be placed in the same way battery core C top h and bottom b (referring to
Figure 26), will not be repeated here, as big face SL, top h and bottom b be when being respectively provided with one side glue material 1, can more improve the anti-of pack case P
Deformation and anti-corrugated ability.Fig. 7 and Fig. 8 layout is advantageous to link together with Part IV glue 124 described below, shape
Into space network, so as to strengthen resistance to deformation and the anti-corrugation of the fastness of battery core C and pack case P bondings and pack case P
Ability.
Secondly the one side glue material 1 according to the application second aspect is illustrated.
It is similar, reference picture 5A and Fig. 5 B, base material 11 is included according to the one side glue material 1 of the application second aspect；And glue 12,
It is bonded on base material 11.Wherein, one side glue material 1 is provided with the through hole 10 of at least one insertion, and each through hole 10 is by base material 11
The perforation 120 of through hole 111 and glue 12 is formed, and the sectional area of each through hole 111 is minimum in the side of glue 12.
Can be with the one side glue material 1 of first aspect according to the shape of the through hole 111 of the one side glue material 1 of the application second aspect
It is identical, it will not be repeated here.
Can be with second party according to the layout of the through hole 111 (together with perforation 120) of the one side glue material 1 of the application second aspect
The one side glue material 1 in face is identical, will not be repeated here.
Both through hole 111 and perforation 120 in shape can be different, as shown in Figure 5A.Through hole 111 and perforation 120 can be with
The perforation 10 of truncated cone-shaped is formed together, as shown in Figure 5 B.
Illustrate the secondary cell according to the application third aspect below.
Reference picture 9 includes to Figure 24 according to the secondary cell of the application third aspect：Battery core C；Pack case P；And base material
11, it is arranged between battery core C and pack case P, base material 11 is provided with the through hole 111 of at least one insertion.Wherein, secondary cell also wraps
Include glue 12.Glue 12 includes：Part I glue 121, between base material 11 and battery core C；Part II glue 122, positioned at base material 11
Between pack case P；Part III glue 123, at least one through hole 111 of base material 11 and by the He of Part I glue 121
Part II glue 122 connects.
During fabrication, the situation shown in Fig. 9 to Figure 16 is first bonded on battery core C suitable for one side glue material 1；It will be bonded with
The battery core C of one side glue material 1 loads in pack case P and is packaged；The battery core C for completing encapsulation is corresponded to from the outside of pack case P
The position of one side glue material 1 is heated and/or pressurizeed, so that the overflow of glue 12 of one side glue material 1, so as to form Fig. 9 to Figure 16's
The various states of glue 12.Thus, battery core C and pack case P is fixed together.In addition, it is bonded with the battery core C of one side glue material 1
It is placed in pack case P and be packaged again after position adjustment.
During fabrication, the situation shown in Figure 17 to Figure 24 is first bonded on pack case P inwall suitable for one side glue material 1；
Battery core C is loaded in pack case P and is packaged afterwards；To completing the battery core C of encapsulation from pack case P outside corresponding one side
The position of glue material 1 is heated and/or pressurizeed, so that the overflow of glue 12 of one side glue material 1, so as to form Figure 17 to Figure 24 glue 12
Various states.Thus, battery core C and pack case P are fixed together.Wherein, can before battery core C loads pack case P
Depend on actual need, battery core C is carried out to avoid scattering using other fixing device (such as adhesive tape) fixation.
Thus, in the secondary cell according to the application third aspect, the glue 12 of one side glue material 1 is by through hole 111, from logical
The side in hole 111 overflows to opposite side, so as to form the glue outside the periphery of through hole 111, ensure that between battery core C and base material 11 with
And all there is glue between pack case P and base material 11, so as to improve pack case resistance to deformation and resist corrugated ability, at the same time,
Glue outside the periphery of through hole 111 also increases the contact area between one side glue material 1 and pack case P, improves the anti-drop of battery core C
Performance.Specifically, in Fig. 9 into Figure 16, Part II glue 122 is the glue outside the periphery of through hole 111；And in Figure 17 to Figure 24
In, Part I glue 121 is the glue outside the periphery of through hole 111.
As shown in Fig. 9, Figure 12 to Figure 15 and Figure 17, Figure 20 to Figure 23, each through hole 111 is filled by Part III glue 123
It is full.Specifically, the design by glue 12 and base material 11 on material, make the mobility of glue 12 very good, and with glue 12 and base material 11
Through hole 111 hole wall compatibility (i.e. the compatibility of glue 12 and base material 11) it is good, make glue 12 in excessive glue (i.e. Part III glue
123 fillings) when, it is very easy to fill up through hole 111.Figure 10 to Figure 11 and Figure 18 is present into Figure 19 in each through hole 111
At least a portion of wall is spaced apart with Part III glue 123.By the design of glue 12 and base material 11 on material, flow glue 12
Property very good, but compatibility (i.e. the compatibility of glue 12 and base material 11) variation of the hole wall of the through hole 111 of glue 12 and base material 11, make
Glue 12 can be preferentially not with through hole 111 at excessive glue (i.e. Part III glue 121 is filled) hole wall contact (be bonded).
Wherein, the mobility of glue 12 can be realized by modulation process parameter, such as by controlling temperature, pressure and time
The mobility of all controllable glue 12.The mobility of glue can be effectively improved by properly increasing temperature, increase pressure and extension time.
As shown in Fig. 8 to Figure 24, glue 12 also includes：Part IV glue 124, outside at least part periphery S of base material 11
Side.Battery core C and pack case P are more clamped securely to together, to improve the anti-dropping capability of secondary cell simultaneously by Part IV glue 124
Improve pack case P resistance to deformation and resist corrugated ability.
In one embodiment, as shown in figure 16, Part IV glue 124 is connected with Part II glue 122.It is highly preferred that ginseng
According to Figure 16 and Fig. 8 to Figure 15 is combined, Part IV glue 124 is connected with Part I glue 121 and Part IV glue 124 and second
Part glue 122 is connected, similarly, in this case, with reference to Part III glue 123 by Part I glue 121 and Part II
Glue 122 connects, and is achieved in four part glue 121-124 and is all connected with, and space network is formed, so as to drastically increase battery core
C and pack case P bonding fastness and pack case P resistance to deformation and the anti-dropping capability for resisting corrugated ability and battery core C.
In one embodiment, as shown in figure 24, Part IV glue 124 is connected with Part I glue 121.It is highly preferred that ginseng
According to Figure 24 and Figure 17 to Figure 23 is combined, Part IV glue 124 is connected with Part I glue 121 and Part IV glue 124 and second
Part glue 122 is connected, and in this case, connects Part I glue 121 and Part II glue 122 with reference to Part III glue 123
Connect, be achieved in four part glue 121-124 and be all connected with, space network is formed, so as to drastically increase battery core C and bag
Fill shell P bonding fastness, pack case P resistance to deformation and the anti-dropping capability for resisting corrugated ability and battery core C.
In one embodiment, as shown in figure 15, the sectional area of each through hole 111 is minimum in the side of Part I glue 121.Another
In one embodiment, as shown in figure 23, the sectional area of each through hole 111 is minimum in the side of Part II glue 122.Made in secondary cell
Cheng Zhong, the two embodiments are advantageous to the excessive glue in through hole 111 of glue 12, i.e., spill over the opposite side of through hole simultaneously from the side of through hole
Overflowed to hole periphery.
As shown in Figure 15 and Figure 23, each through hole 111 can be in truncated cone-shaped.It is each logical as shown in Fig. 8 to Figure 14, Figure 17 to Figure 22
Hole 111 is in cylinder.
As it was previously stated, through hole 111 can be multiple.As shown in Figure 16, Figure 24, Figure 25 and Figure 26, the multiple through hole 111 is in
The H-shaped distribution of two linear arrays of row a line three.Through hole 111 is very beneficial for the privileged sites progress in battery core C with H-shaped distribution
Bonding.As shown in figure 25, the row in three linear arrays is placed at the winding ending of battery core (shown in broken lines in fig. 25), and
Two row in three linear arrays are placed in capable both ends (i.e. positioned at the big face S of the battery core C shown in Figure 25L(in Figure 25 being
Surface) top (in fig. 25 for close to battery core C top h position) and bottom (be close battery core C bottom in fig. 25
B position).The glue material of the H-shaped distribution of certain Fig. 6 multiple through holes 111 can also be placed in battery core C top in the same way
H and bottom b (referring to Figure 26), will not be repeated here, as big face SL, top h and bottom b be when being respectively provided with one side glue material 1, can more carry
High pack case P resistance to deformation and anti-corrugated ability.For another example belong to the through hole 111 of two arrays of two row respectively positioned at electricity
On two edges on core C top h (not shown)/or bottom b (referring to Figure 26) thickness direction along battery core C.With reference to figure
7, the multiple rectangular array of through hole 111 distributions；With reference to Fig. 8, multiple through holes 111 are distributed around the surrounding of base material 11.Fig. 7 and Fig. 8
Layout be advantageous to the foregoing glue outside the periphery of through hole 111 and linked together with Part IV glue 124.
As shown in Figure 11 to Figure 13 and Figure 20 to Figure 22, glue 12 is formed with cavity 1211 and cavity 1221, if one side
Glue material 1 and battery core C or one side glue material are not posted with pack case P, and air, in such cases, hot pressing can be left between binding face
During, if the air between binding face does not exclude in time, 12 layers of meeting of glue form cavity.
Claims (19)
1. a kind of one side glue material, including：
Base material；And
Glue, it is bonded on base material；
Characterized in that,
Base material is provided with the through hole of at least one insertion；
Glue is without perforation.
2. one side glue material according to claim 1, it is characterised in that the sectional area of each through hole is minimum in glue side.
3. one side glue material according to claim 1, it is characterised in that each through hole is in truncated cone-shaped.
4. one side glue material according to claim 1, it is characterised in that through hole is multiple, and multiple through holes are in two row a line three
The H-shaped distribution of individual linear array.
5. one side glue material according to claim 1, it is characterised in that through hole is multiple, and multiple through holes surround the four of base material
Week distribution.
6. a kind of one side glue material, including：
Base material；And glue, it is bonded on base material；
Characterized in that,
One side glue material is provided with the through hole of at least one insertion,
Each through hole is made up of the perforation of the through hole and glue of base material, and the sectional area of each through hole is minimum in glue side.
7. a kind of secondary cell, including：
Battery core；
Pack case；And
Base material, it is arranged between battery core and pack case, base material is provided with the through hole of at least one insertion；
Characterized in that,
Secondary cell also includes：
Glue, including：
Part I glue, between base material and battery core；
Part II glue, between base material and pack case；
Part III glue, at least one through hole of base material and by Part I glue and Part II gemel connection.
8. secondary cell according to claim 7, it is characterised in that
At least a portion of the inwall of each through hole is spaced apart with Part III glue.
9. secondary cell according to claim 8, it is characterised in that
Each through hole is filled full by Part III glue.
10. secondary cell according to claim 7, it is characterised in that glue also includes：Part IV glue, positioned at base material
At least part circumferential outside.
11. secondary cell according to claim 10, it is characterised in that
Part IV glue is connected with Part I glue.
12. secondary cell according to claim 10, it is characterised in that
Part IV glue is connected with Part II glue.
13. the secondary cell according to claim 11 or 12, it is characterised in that
Part IV glue is connected with Part I glue and Part IV glue is connected with Part II glue.
14. secondary cell according to claim 11, it is characterised in that the sectional area of each through hole in Part I glue side most
It is small.
15. secondary cell according to claim 12, it is characterised in that the sectional area of each through hole in Part II glue side most
It is small.
16. the secondary cell according to claims 14 or 15, it is characterised in that each through hole is in truncated cone-shaped.
17. secondary cell according to claim 7, it is characterised in that through hole is multiple, and multiple through holes are in two row a line three
The H-shaped distribution of individual linear array.
18. secondary cell according to claim 17, it is characterised in that the row in three linear arrays is placed in the volume of battery core
At ending, and two row in three linear arrays are positioned at the upper and lower part in the big face of battery core.
19. secondary cell according to claim 7, it is characterised in that through hole is multiple, and multiple through holes surround the four of base material
Week distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720884420.XU CN207031327U (en) | 2017-07-19 | 2017-07-19 | One side glue material and secondary cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720884420.XU CN207031327U (en) | 2017-07-19 | 2017-07-19 | One side glue material and secondary cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207031327U true CN207031327U (en) | 2018-02-23 |
Family
ID=61465084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720884420.XU Withdrawn - After Issue CN207031327U (en) | 2017-07-19 | 2017-07-19 | One side glue material and secondary cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207031327U (en) |
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2017
- 2017-07-19 CN CN201720884420.XU patent/CN207031327U/en not_active Withdrawn - After Issue
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