CN108023119A - A kind of polymer Li-ion battery - Google Patents
A kind of polymer Li-ion battery Download PDFInfo
- Publication number
- CN108023119A CN108023119A CN201810015865.3A CN201810015865A CN108023119A CN 108023119 A CN108023119 A CN 108023119A CN 201810015865 A CN201810015865 A CN 201810015865A CN 108023119 A CN108023119 A CN 108023119A
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- Prior art keywords
- polymer
- battery
- ion battery
- lug
- battery case
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- 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.)
- Pending
Links
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 34
- 229920000642 polymer Polymers 0.000 title claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 45
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 30
- 238000000605 extraction Methods 0.000 claims abstract description 20
- 239000000565 sealant Substances 0.000 claims description 13
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 239000003063 flame retardant Substances 0.000 abstract description 13
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 10
- 239000000499 gel Substances 0.000 description 29
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 16
- 239000000017 hydrogel Substances 0.000 description 8
- 239000000377 silicon dioxide Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 239000004020 conductor Substances 0.000 description 5
- 238000010304 firing Methods 0.000 description 5
- 238000005474 detonation Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 239000004519 grease Substances 0.000 description 3
- 235000015110 jellies Nutrition 0.000 description 3
- 239000008274 jelly Substances 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000003556 assay Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000007420 reactivation Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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
- H01M50/183—Sealing members
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
Abstract
The present invention provides a kind of polymer Li-ion battery, including battery core, electrode and battery case；The battery core is located in the battery case, and the electrode includes the positive and negative anodes conductive electrode auricle drawn lug and drawn in the same direction from the battery core, and the extraction lug is connected with the conductive electrode auricle, and the extraction lug is connected with plug division；Liquid silicone gel is filled with the battery case；The top of the battery case is equipped with the first opening, and the polymer Li-ion battery further includes the cover board for covering first opening；The cover board is equipped with the second opening for being used for the extraction lug and plug division stretching.The explosion-proof of polymer Li-ion battery of the present invention, flame retardant effect are good, security performance higher.
Description
Technical field
The present invention relates to field of batteries, more particularly to a kind of polymer Li-ion battery.
Background technology
Due to polymeric material battery, battery core is not on fire, does not explode, and battery core has enough securities in itself, therefore poly-
Compound battery is widely used.But polymer Li-ion battery, is easy to that short-circuit conditions, including inside occurs in charging process
Situations such as short circuit, external short circuit.Although present most of lithium ion batteries all carry anti-short-circuit protection circuit or explosion-proof line,
But its is fire-retardant, explosion-proof effect is limited.
The content of the invention
It is an object of the invention to overcome drawbacks described above, there is provided a kind of polymer Li-ion fire-retardant, explosion-proof effect is good
Battery.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of polymer Li-ion battery, including battery core, electrode and battery case；
The battery core is located in the battery case, and the electrode includes what is drawn lug and drawn in the same direction from the battery core
Positive and negative anodes conductive electrode auricle, the extraction lug are connected with the conductive electrode auricle, and the extraction lug is connected with plug division；
Liquid silicone gel is filled with the battery case, the liquid silicone gel is a kind of jelly shape material of solid-liquid；
The top of the battery case is equipped with the first opening, and the polymer Li-ion battery is further included for covering described the
The cover board of one opening；The cover board is equipped with the second opening for being used for the extraction lug and plug division stretching.
The beneficial effects of the present invention are：The battery of the present invention is strong by filling anti-shear ability in battery case, reviews one's lessons by oneself
The strong liquid Silica hydrogel of reactivation power, can significantly improve the impact resistance of whole battery, effectively protect battery core；Simultaneously as liquid
Silica hydrogel also has self-reparing capability and arc extinguishing ability characteristic, and moment on fire plays air-isolation, by being filled in battery case
Liquid silicone gel can significantly reduce conductor electric conductivity to reduce detonation, firing point, and then effectively improve the explosion-proof flame-retardant effect of battery
Fruit.
Brief description of the drawings
Fig. 1 is the front view of polymer Li-ion battery of the embodiment of the present invention.
Fig. 2 is the structure diagram after the assembling of polymer Li-ion battery of the embodiment of the present invention.
Fig. 3 is the sectional view after the assembling of polymer Li-ion battery of the embodiment of the present invention.
Label declaration：
1- battery cores；2- battery cases；3- draws lug；4- plug divisions；5- liquid silicone gels；
6- cover boards；7- sealants.
Embodiment
In order to describe the technical content, the structural feature, the achieved object and the effect of this invention in detail, below in conjunction with embodiment
And attached drawing is coordinated to be explained in detail.
The design of most critical of the present invention is：By in battery case liquid filling body Silica hydrogel to coat battery core, with every
Exhausted air and reduction conductor electric conductivity improve the explosion-proof flame-retardant effect of battery to reduce fire point and firing point.
It refer to Fig. 1 to Fig. 3, a kind of polymer Li-ion battery, including battery core 1, electrode and battery case 2；
The battery core 1 is located in the battery case 2, and the electrode includes drawing lug 3 and draws in the same direction from the battery core 1
The positive and negative anodes conductive electrode auricle gone out, the extraction lug 3 are connected with the conductive electrode auricle, and the extraction lug 3 is connected with slotting
Socket part 4；
Liquid silicone gel 5 is filled with the battery case 2, the liquid silicone gel 5 is a kind of jelly shape material of solid-liquid
Material；
The top of the battery case 2 is equipped with the first opening, and the polymer Li-ion battery further includes described for covering
The cover board 6 of first opening；The cover board is equipped with the second opening for being used for the extraction lug 3 and the stretching of the plug division 4.
The present invention operation principle be：Liquid silicone gel is very soft, and due to soft characteristic, the stress that inside produces is non-
Often small, viscosity is chronically at half liquid solid-state；Anti-shear ability is strong, and self-reparing capability is strong, and moisture-proof moisture resistance is very good；Component liquid
Body Silica hydrogel embedding, its impact absorbency is very good, and impact force, which is reduced, shows absorbability of the liquid silicone gel to additional impact force
It is very good.Battery core is wrapped in battery case completely with liquid silicone gel, since liquid silicone gel is chronically at half liquid solid-state institute
It is very strong with self-reparing capability with anti-shear ability, and moisture-proof moisture resistance is very good, when battery be subject to external impacts and extruding or
Internal short-circuit, external short circuit etc. can play a protective role battery core.In addition, liquid silicone gel also has self-reparing capability and goes out
Arc ability characteristic, moment on fire play air-isolation, reduce conductor electric conductivity to reduce detonation, firing point, and then play fire-retardant
Explosion-proof effect.
As can be seen from the above description, the beneficial effects of the present invention are：The battery of the present invention is anti-by being filled in battery case
Shear ability is strong, the strong liquid Silica hydrogel of self-reparing capability, can significantly improve the impact resistance of whole battery, effectively protection electricity
Core；Simultaneously as liquid silicone gel also has self-reparing capability and arc extinguishing ability characteristic, moment on fire plays air-isolation, leads to
Conductor electric conductivity can be significantly reduced to reduce detonation, firing point by crossing the liquid filling body Silica hydrogel in battery case, and then be effectively improved
The explosion-proof flame-retardant effect of battery.
Further, the viscosity of the liquid silicone gel is 100000~300000cp；The denseness of the liquid silicone gel
For 130~205.
In the present invention, the denseness preferably 130~205, more preferably 145~175 of liquid silicone gel.Denseness according to
JISK2220：Flow test is mixed as defined in 2003 to try to achieve.In this specification, such as it is not particularly illustrated, then denseness refers to using
Cone penetration value (also referred to as penetration index) represents, refers at 25 DEG C, is in 5s, certainly in the time with the metal taper of obtuse angle shape
The depth of lubricating grease is sunk to again, in units of 1/10mm.Cone penetration value is bigger, and consistency of grease is smaller.Denseness 130~
205 scope is equivalent to as defined in National Lubricating Grease Institute (lubricating oil association of the U.S.)
No.4~No.5 of NLGI denseness numbering.
The denseness of liquid silicone gel is controlled in above range so that liquid silicone gel has the mobility of appropriateness, works as battery
When being moved in gel, air, explosion-proof flame-retardant best results can be promptly isolated by the recuperability of liquid gel.
Further, the battery core 1 is coated on the liquid silicone gel 5.
Seen from the above description, battery core is completely submerged in liquid silicone gel, thoroughly completely cuts off battery core and air contact so that
Explosion-proof flame-retardant is better.
Further, the polymer Li-ion battery further includes the sealant 7 for covering second opening.
Seen from the above description, after lug and plug division stretching is drawn, the second opening is sealed using sealant, it is ensured that
The leakproofness of battery after assembling more preferably, further improves explosion-proof flame-retardant effect.
Further, the material of the sealant 7 is epoxy resin sealant.
Seen from the above description, using epoxy resin sealant, sealing effect is good for sealant.
Further, described to draw cylinder of the lug 3 for inner hollow and open at both ends, the extraction lug 3 passes through
Rivet is connected with the positive and negative anodes conductive electrode auricle.
Seen from the above description, extraction lug using the above structure both facilitated and was connected with positive and negative anodes conductive electrode auricle, together
When applicability it is more preferable.
Further, the plug division 4 is in bar shaped sheet, and the plug division 4 is connected with the side wall of the cylinder, and institute
State the axially in parallel of the length direction of plug division 4 and the cylinder.
Further, the longitudinal section of the battery case 2 is rectangle.
Further, after cover board 6 covers the first opening of battery case 2, ultra-sonic welded is recycled to seal up cover board 6 and battery
The junction of box 2.
Embodiment 1
It refer to Fig. 1 to Fig. 3, a kind of polymer Li-ion battery, including battery core 1, electrode and battery case 2；
The battery core 1 is located in the battery case 2, and the electrode includes drawing lug 3 and draws in the same direction from the battery core 1
The positive and negative anodes conductive electrode auricle gone out, the extraction lug 3 are connected with the conductive electrode auricle, and the extraction lug 3 is connected with slotting
Socket part 4；Liquid silicone gel 5 is filled with the battery case 2, the liquid silicone gel 5 is a kind of jelly shape material of solid-liquid；
The top of the battery case 2 is equipped with the first opening, and the polymer Li-ion battery is further included for covering first opening
Cover board 6；The cover board is equipped with the second opening for being used for the extraction lug 3 and the stretching of the plug division 4.
Further, the viscosity of the liquid silicone gel is 100000~300000cp；The denseness of the liquid silicone gel
For 130~205.
The battery core 1 is coated on the liquid silicone gel 5；The polymer Li-ion battery further includes described for covering
The sealant 7 of second opening；The material of the sealant 7 is epoxy resin sealant.
It is described to draw cylinder of the lug 3 for inner hollow and open at both ends, the extraction lug 3 by rivet with it is described
Positive and negative anodes conductive electrode auricle connects；The plug division 4 is in bar shaped sheet, and the plug division 4 is connected with the side wall of the cylinder,
And the length direction of the plug division 4 and the cylinder is axially in parallel；The longitudinal section of the battery case 2 is rectangle；Cover board 6
After the first opening for covering battery case 2, ultra-sonic welded is recycled to seal up the junction of cover board 6 and battery case 2.
The assemble method of the polymer Li-ion battery of above-described embodiment, first by battery core 1 with drawing lug 3 and plug division
4 assembly and connections are good, the liquid silicone gel 5 of certain volume then loaded in battery case 2, then battery core 1 is put into equipped with liquid silicon
In the battery case of gel 5, cover board 6 is then covered, the junction of cover board 6 and battery case is being sealed using ultra-sonic welded, is being utilized
Epoxy resin sealant seals to be used to stretch out the second opening for drawing lug 3 and plug division 4 to form sealant on cover board.
Explosion-proof flame-retardant experiment, contrast are carried out to the polymer Li-ion battery of above-described embodiment and existing commercially available (comparative example)
The fire resistance of the polymer Li-ion battery of example is assessed as V-1 by UL-94 flame retardant rating assay methods and (sample is carried out twice
After the combustion testing of 10s, flame extinguishes in 60s, it is impossible to has comburant to fall down), and the polymer Li-ion battery of the present invention
Fire resistance be assessed as V-0 by UL-94 flame retardant rating assay methods and (sample carried out twice after the combustion testing of 10s, flame
Extinguish in 30s, it is impossible to there is comburant to fall down).
In conclusion polymer Li-ion battery provided by the invention, strong by filling anti-shear ability in battery case,
The strong liquid Silica hydrogel of self-reparing capability, can significantly improve the impact resistance of whole battery, effectively protect battery core；Simultaneously as
Liquid silicone gel also has self-reparing capability and arc extinguishing ability characteristic, and moment on fire plays air-isolation, by battery case
Liquid filling body Silica hydrogel can significantly reduce conductor electric conductivity to reduce detonation, firing point, and then effectively improve the explosion-proof resistance of battery
Fuel efficiency fruit.
The foregoing is merely the embodiment of the present invention, is not intended to limit the scope of the invention, every to utilize this hair
The equivalent structure or equivalent flow shift that bright specification and accompanying drawing content are made, is directly or indirectly used in other relevant skills
Art field, is included within the scope of the present invention.
Claims (7)
1. a kind of polymer Li-ion battery, it is characterised in that including battery core, electrode and battery case；
The battery core is located in the battery case, and the electrode includes drawing lug and drawn in the same direction from the battery core positive and negative
Pole conductive electrode auricle, the extraction lug are connected with the conductive electrode auricle, and the extraction lug is connected with plug division；
Liquid silicone gel is filled with the battery case；
The top of the battery case is equipped with the first opening, and the polymer Li-ion battery is further included to be opened for covering described first
The cover board of mouth；The cover board is equipped with the second opening for being used for the extraction lug and plug division stretching.
2. polymer Li-ion battery according to claim 1, it is characterised in that the viscosity of the liquid silicone gel is
100000~300000cp；The denseness of the liquid silicone gel is 130~205.
3. polymer Li-ion battery according to claim 1, it is characterised in that the battery core is coated on the liquid silicon
Gel.
4. polymer Li-ion battery according to claim 1, it is characterised in that the polymer Li-ion battery also wraps
Include the epoxy resin sealant layer for covering second opening.
5. polymer Li-ion battery according to claim 1, it is characterised in that the extraction lug for inner hollow and
The cylinder of open at both ends, the extraction lug are connected by rivet with the positive and negative anodes conductive electrode auricle.
6. polymer Li-ion battery according to claim 5, it is characterised in that the plug division is in bar shaped sheet, institute
The side wall that plug division is stated with the cylinder is connected, and the length direction of the plug division and the cylinder is axially in parallel.
7. polymer Li-ion battery according to claim 1, it is characterised in that the longitudinal section of the battery case is square
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810015865.3A CN108023119A (en) | 2018-01-08 | 2018-01-08 | A kind of polymer Li-ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810015865.3A CN108023119A (en) | 2018-01-08 | 2018-01-08 | A kind of polymer Li-ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108023119A true CN108023119A (en) | 2018-05-11 |
Family
ID=62072449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810015865.3A Pending CN108023119A (en) | 2018-01-08 | 2018-01-08 | A kind of polymer Li-ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108023119A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888226A (en) * | 2019-02-28 | 2019-06-14 | 河南大学 | A kind of anode clad structure material and preparation method thereof with pinning effect |
| CN114039173A (en) * | 2021-10-25 | 2022-02-11 | 东莞新能安科技有限公司 | Electrochemical device, battery module and electric equipment |
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| CN114039173A (en) * | 2021-10-25 | 2022-02-11 | 东莞新能安科技有限公司 | Electrochemical device, battery module and electric equipment |
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Application publication date: 20180511 |
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