CN207781791U - A kind of liquid storage gummed paper and lithium ion soft pack cell for lithium ion soft pack cell - Google Patents
A kind of liquid storage gummed paper and lithium ion soft pack cell for lithium ion soft pack cell Download PDFInfo
- Publication number
- CN207781791U CN207781791U CN201721792925.XU CN201721792925U CN207781791U CN 207781791 U CN207781791 U CN 207781791U CN 201721792925 U CN201721792925 U CN 201721792925U CN 207781791 U CN207781791 U CN 207781791U
- Authority
- CN
- China
- Prior art keywords
- gummed paper
- liquid storage
- lithium ion
- soft pack
- pack cell
- 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.)
- Active
Links
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Cell Separators (AREA)
Abstract
The utility model embodiment discloses a kind of liquid storage gummed paper for lithium ion soft pack cell, it includes PET gummed papers basement membrane and the cellulose aerogels layer that is covered on PET gummed paper basement membranes, the first adhesive layer and the second adhesive layer has been respectively coated in the two sides of PET gummed paper basement membranes, the one side that PET gummed paper basement membranes are coated with the first adhesive layer connects cellulose aerogels layer for connecting battery core body, the one side that PET gummed paper basement membranes are coated with the second adhesive layer.The utility model embodiment also discloses a kind of lithium ion soft pack cell.The extremely strong cellulose aerogels layer of imbibition ability is coated on PET gummed paper basement membranes by the liquid storage gummed paper of the utility model so that the liquid storage gummed paper has very strong guarantor's liquid effect.
Description
Technical field
The utility model belongs to technical field of lithium-ion battery, and in particular to a kind of for lithium ion soft pack cell
Liquid storage gummed paper and a kind of lithium ion soft pack cell.
Background technology
Currently, in the prior art, mostly using at the top of battery core body and the method for liquid storage module being placed to store in tail portion
There are following three points in electrolyte, this mode：First, a large amount of inner space of battery core is occupied, keeps battery core energy close
Degree declines to a great extent；Second, the material of imbibition module uses polyethylene or polypropylene, imbibition ability limited；Third, to will be electric
Core bodies top and the imbibition module of bottom are enclosed inside battery core together, and operation difficulty is very big, there is no mating automation at present
Equipment may be implemented, and manual operations, cost of labor can only be used big, it is difficult to which realization is commercially produced.
Utility model content
The purpose of this utility model is to provide a kind of liquid storage gummed paper for lithium ion soft pack cell and a kind of lithium ion is soft
Packet battery core solves the above-mentioned problems in the prior art.
Technical solution used by the utility model is：
Liquid storage gummed paper for lithium ion soft pack cell comprising PET gummed papers basement membrane and be covered in the PET gummed papers basement membrane
On cellulose aerogels layer, the first adhesive layer and the second adhesive has been respectively coated in the two sides of the PET gummed papers basement membrane
Layer, the PET gummed papers basement membrane are coated with the one side of first adhesive layer for connecting battery core body, the PET gummed papers base
The one side that film is coated with second adhesive layer connects the cellulose aerogels layer.
The utility model is also characterized by：
The thickness of the PET gummed papers basement membrane is 15~25um；The thickness of the cellulose aerogels layer is 5~15um.
First adhesive layer is natural rubber；Second adhesive layer is epoxy resin or polyvinyl alcohol.
Compared with prior art, the utility model embodiment provides a kind of liquid storage gummed paper for lithium ion soft pack cell,
The extremely strong cellulose aerogels layer of imbibition ability is coated on PET gummed paper basement membranes by the liquid storage gummed paper so that the liquid storage gummed paper has
There is very strong guarantor's liquid to act on；When the liquid storage gummed paper is pasted onto battery core body internal layer, sufficient electrolyte can be provided for cycle, from
And play the role of improving battery life；When the liquid storage gummed paper is pasted onto battery core body tail portion, it can absorb the floating of battery core surface
Liquid makes flat appearance, the beauty of the lithium ion soft pack cell.
Second technical solution used by the utility model be：
A kind of lithium ion soft pack cell comprising battery core body, be provided in the battery core body it is above-mentioned for lithium from
Liquid storage gummed paper, anode ear and the negative electrode lug of sub- soft pack cell, the liquid storage gummed paper are provided with three altogether in the battery core body
Piece, wherein liquid storage gummed paper described in two panels overlap between the anode ear and negative electrode lug；In addition a piece of liquid storage gummed paper
It is arranged in the tail portion of the battery core body.
Compared with prior art, the lithium ion soft pack cell that the utility model embodiment provides, since which employs above-mentioned
Liquid storage gummed paper, therefore there is the lithium ion soft pack cell the sufficient electrolyte needed for cycle, service life to be improved；And
Since liquid storage gummed paper can absorb the supernatant liquid on the lithium ion soft pack cell surface, make the lithium ion soft pack cell flat appearance,
It is beautiful.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of liquid storage gummed paper for lithium ion soft pack cell of the utility model embodiment；
Fig. 2 is a kind of structural schematic diagram of lithium ion soft pack cell of the utility model embodiment；
Fig. 3 is that a kind of liquid storage gummed paper for lithium ion soft pack cell of the utility model embodiment is pasted on cathode pole piece
Position vertical view；
Fig. 4 is that a kind of liquid storage gummed paper for lithium ion soft pack cell of the utility model embodiment is pasted on anode pole piece
Position vertical view；
Fig. 5 is that a kind of liquid storage gummed paper for lithium ion soft pack cell of the utility model embodiment is viscous in battery core body tail portion
The position vertical view of patch.
In figure, 1. liquid storage gummed papers, 11.PET gummed paper basement membranes, 12. cellulose aerogels layers, 2. anode ears, 3. negative electrode lugs.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail；It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in Figure 1, the utility model embodiment provides a kind of liquid storage gummed paper for lithium ion soft pack cell comprising
PET (Chineses：Polyethylene terephthalate) gummed paper basement membrane 11 and the cellulose that is covered on PET gummed papers basement membrane 11
Aerogel layer 12, wherein PET gummed paper basement membranes play carrier function；The first adhesive has been respectively coated in the two sides of PET gummed papers basement membrane 11
Layer and the second adhesive layer, PET gummed papers basement membrane 11 are coated with the one side of the first adhesive layer for connecting battery core body, PET glue
Paper-based membrane 11 is coated with the one side connection cellulose aerogels layer 12 of the second adhesive layer.
The thickness of PET gummed papers basement membrane 11 is 15~25um；The thickness of cellulose aerogels layer 12 is 5~15um.First glue
Adhensive layer is natural rubber；Second adhesive layer is epoxy resin or polyvinyl alcohol.
A kind of liquid storage gummed paper for lithium ion soft pack cell of the utility model embodiment, wherein cellulose aerogels layer
The capillary for having a large amount of hydroxyl and nano-pore structure on 12 strand makes 12 pairs of electrolyte of cellulose aerogels layer have pole
Strong compatibility, can quickly absorb a large amount of organic electrolytes, imbibition rate up to 300%, far above polyethylene, polypropylene every
Film；Also, cellulose aerogels have stronger chemical resistance, long-term retention property can stablize in the electrolytic solution；Its
High-liquid absorbing rate and chemical resistance enable liquid storage gummed paper 1 to stablize, effectively use in lithium ion battery.
Steps are as follows for a kind of preparation method of the above-mentioned liquid storage gummed paper for lithium ion soft pack cell of the utility model：
Step 1 takes PET gummed papers basement membrane 11, and the first adhesive layer and second is respectively coated on the two sides of PET gummed papers basement membrane 11
Adhesive layer obtains the PET gummed paper basement membranes of coating adhesive layer；
Step 2, the one side that the second adhesive layer is coated in the PET gummed paper basement membranes for the coating adhesive layer that step 1 obtains
One layer of cellulose aerogels layer 12 is pasted, the liquid storage gummed paper for lithium ion soft pack cell is obtained.
The utility model embodiment also provides a kind of lithium ion soft pack cell, as shown in Figure 2 comprising battery core body, electricity
The above-mentioned liquid storage gummed paper 1, anode ear 2 and negative electrode lug 3 for lithium ion soft pack cell, liquid storage gummed paper are provided on core ontology
1 is provided with three pieces altogether in battery core body, and wherein two panels liquid storage gummed paper 1 overlaps between anode ear 2 and negative electrode lug 3；Separately
Outer a piece of liquid storage gummed paper 1 is arranged in the tail portion of battery core body.
A kind of lithium ion soft pack cell of the utility model embodiment is pasted with above-mentioned liquid storage gummed paper 1, wherein one in Liang Chu
Place is that two panels liquid storage gummed paper 1 overlaps between anode ear 2 and negative electrode lug 3, referred to as internal layer liquid storage gummed paper, as in Fig. 2 at A；
It is arranged in the battery core body tail portion of battery core body, referred to as outer layer liquid storage gummed paper, such as B in Fig. 2 for a piece of liquid storage gummed paper 1 at other one
Place.
Wherein, the thickness of PET gummed papers basement membrane 11 is between 15~25um；The thickness of cellulose aerogels layer 12 5~
Between 15um, to ensure that the integral thickness of single layer liquid storage gummed paper 1 is no more than 40um, set for the overlapping of two panels liquid storage gummed paper 1 at A
It sets, gummed paper overall thickness is less than or equal to 80um, and being no more than lug thickness, (thickness >=80um of lug, lug position are battery core main body
Most thick position), so the most thick position of battery core body is still the location of lug, therefore it is pasted onto battery core body internal layer
Liquid storage gummed paper 1 and the space that is not take up on battery core body thickness direction, to ensure the integral energy density of battery core body not
It suffers a loss.
Internal layer liquid storage gummed paper is respectively adhered on the head of positive and negative plate；Wherein, as shown in figure 3, liquid storage glue on negative plate
Paper 1 is located at lug inner side；As shown in figure 4, the liquid storage gummed paper 1 on positive plate is located at lug outer fix, in this way may be used
With ensure battery core body complete wind after liquid storage gummed paper 1 between positive and negative two lug.
Further, internal layer liquid storage gummed paper can fully absorb electrolyte；Battery core body during the work time, with cycle
Number increases, and internal electrolyte can be consumed constantly, and the electrolyte stored in internal layer liquid storage gummed paper prolongs for cycle consumption
The cycle performance of battery core body is grown.
In addition, as Fig. 2, it is shown in fig. 5 the B of battery core body tail portion at stickup liquid storage gummed paper, can battery core body into
After row vacuumizes second of encapsulation, the electrolyte that battery core body surface is floated is absorbed, to ensure the lithium ion soft pack cell
Flat appearance, beauty.
Compared with existing liquid storage technology, the utility model has the advantage of：
1) thickness of liquid storage gummed paper 1 is thin, and the space for occupying battery core body is small, can effectively ensure that the energy of battery core body is close
Degree；
2) imbibition rate of the cellulose aerogels layer 12 of gummed paper outer layer is up to 300%, far above traditional polyethylene, poly- third
Alkene, therefore more electrolyte can be stored；
3) rubberizing mode is simple, it is easy to accomplish industrialization.
To sum up, since the extremely strong cellulose aerogels layer 12 of imbibition ability to be coated on PET gummed papers basement membrane 11 so that should
Liquid storage gummed paper 1 has very strong guarantor's liquid effect.When the liquid storage gummed paper 1 is pasted onto battery core body internal layer, it can provide and fill for cycle
The electrolyte of foot, to play the role of improving battery life；When the liquid storage gummed paper is pasted onto battery core body tail portion, it can absorb
The supernatant liquid on battery core surface makes flat appearance, the beauty of the lithium ion soft pack cell.
Claims (6)
1. a kind of liquid storage gummed paper for lithium ion soft pack cell, which is characterized in that it includes PET gummed papers basement membrane and is covered in institute
The cellulose aerogels layer on PET gummed paper basement membranes is stated, the first adhesive layer has been respectively coated in the two sides of the PET gummed papers basement membrane
And second adhesive layer, the PET gummed papers basement membrane are coated with the one side of first adhesive layer for connecting battery core body, institute
It states one side of the PET gummed paper basement membranes coated with second adhesive layer and connects the cellulose aerogels layer.
2. the liquid storage gummed paper according to claim 1 for lithium ion soft pack cell, which is characterized in that the PET gummed papers
The thickness of basement membrane is 15~25um.
3. the liquid storage gummed paper according to claim 1 for lithium ion soft pack cell, which is characterized in that the cellulose gas
The thickness of gel layer is 5~15um.
4. the liquid storage gummed paper according to claim 1 for lithium ion soft pack cell, which is characterized in that first gluing
Oxidant layer is natural rubber.
5. the liquid storage gummed paper according to claim 1 for lithium ion soft pack cell, which is characterized in that second gluing
Oxidant layer is epoxy resin or polyvinyl alcohol.
6. a kind of lithium ion soft pack cell, which is characterized in that it includes battery core body, is arranged just like right in the battery core body
It is required that liquid storage gummed paper, anode ear and the negative electrode lug for lithium ion soft pack cell described in any one of 1-5, the liquid storage glue
Paper is provided with three pieces altogether in the battery core body, and wherein liquid storage gummed paper described in two panels is overlapped in the anode ear and cathode
Between ear；In addition a piece of liquid storage gummed paper is arranged in the tail portion of the battery core body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721792925.XU CN207781791U (en) | 2017-12-20 | 2017-12-20 | A kind of liquid storage gummed paper and lithium ion soft pack cell for lithium ion soft pack cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721792925.XU CN207781791U (en) | 2017-12-20 | 2017-12-20 | A kind of liquid storage gummed paper and lithium ion soft pack cell for lithium ion soft pack cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207781791U true CN207781791U (en) | 2018-08-28 |
Family
ID=63226804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721792925.XU Active CN207781791U (en) | 2017-12-20 | 2017-12-20 | A kind of liquid storage gummed paper and lithium ion soft pack cell for lithium ion soft pack cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207781791U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109950609A (en) * | 2017-12-20 | 2019-06-28 | 成都市银隆新能源有限公司 | Liquid storage gummed paper, preparation method and battery core for lithium ion soft pack cell |
-
2017
- 2017-12-20 CN CN201721792925.XU patent/CN207781791U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109950609A (en) * | 2017-12-20 | 2019-06-28 | 成都市银隆新能源有限公司 | Liquid storage gummed paper, preparation method and battery core for lithium ion soft pack cell |
| CN109950609B (en) * | 2017-12-20 | 2024-03-15 | 成都市银隆新能源有限公司 | Liquid storage gummed paper for lithium ion soft package battery core, preparation method and battery core |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208433424U (en) | A kind of Soft Roll laminated batteries encapsulating structure | |
| CN201838680U (en) | Flexible packaging battery | |
| CN203562482U (en) | Lithium ion battery of net current collector | |
| CN209434285U (en) | A kind of lithium ion battery | |
| CN102969539A (en) | Ultra-thin lithium ion secondary battery | |
| CN102447133B (en) | A kind of vehicle lithium-ion power battery | |
| CN207781791U (en) | A kind of liquid storage gummed paper and lithium ion soft pack cell for lithium ion soft pack cell | |
| CN203644887U (en) | Flexible package lithium ion battery | |
| CN109950609A (en) | Liquid storage gummed paper, preparation method and battery core for lithium ion soft pack cell | |
| CN202585658U (en) | Electrolyte-permeable gummed paper for winding core of lithium ion battery | |
| CN203521521U (en) | Winding type electric core and electrochemical device | |
| CN111786032A (en) | Preparation method of anti-drop lithium ion battery | |
| CN208753460U (en) | A kind of composite construction battery core | |
| CN110085901A (en) | Battery with a battery cell | |
| CN203277559U (en) | Lead-acid battery | |
| CN205004378U (en) | Flexible package lithium battery | |
| CN209487544U (en) | A kind of low temperature lithium battery | |
| CN208400917U (en) | Ultra thin device reserve battery | |
| CN209357812U (en) | A kind of electric core structure of lithium battery that can improve heavy impact and the lithium battery including the core strueture | |
| CN209298273U (en) | A kind of fire-type polymer Li-ion battery | |
| CN207426043U (en) | A kind of solid state battery package assembly | |
| CN207250577U (en) | A kind of circular batteries structure | |
| CN204243088U (en) | Zinc-manganese battery pack | |
| CN203039036U (en) | Package structure of lithium ion battery | |
| CN105845880B (en) | It is provided with the aluminum plastic film laminated lithium ion battery of positioning protective device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |