CN108511785A - A kind of dynamic lithium battery of anti-bulge - Google Patents
A kind of dynamic lithium battery of anti-bulge Download PDFInfo
- Publication number
- CN108511785A CN108511785A CN201810525650.6A CN201810525650A CN108511785A CN 108511785 A CN108511785 A CN 108511785A CN 201810525650 A CN201810525650 A CN 201810525650A CN 108511785 A CN108511785 A CN 108511785A
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- Prior art keywords
- bulge
- ceramic
- lithium battery
- diaphragm
- dynamic lithium
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- 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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/411—Organic material
-
- 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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/44—Fibrous material
-
- 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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/449—Separators, membranes or diaphragms characterised by the material having a layered structure
-
- 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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/463—Separators, membranes or diaphragms characterised by their shape
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Cell Separators (AREA)
Abstract
The present invention provides a kind of dynamic lithium batteries of anti-bulge, including ceramic-lined body, the all round closure of the ceramic-lined body, it is open up and down, its part opened up and down is sealed by ceramic diaphragm, the ceramic diaphragm includes the ceramic framework of outside, the upper and lower surface of ceramic framework is provided with ceramic diaphragm, the anti-bulge stomata arranged in a uniform of multiple regions is provided on the ceramic diaphragm, AGM partition boards are provided on the outside of the ceramic diaphragm, it is provided with battery case on the outside of the AGM partition boards, the middle section of the battery case is provided with substrate, the upper surface of base plate is provided with protective resin layer.Due to being provided with the anti-bulge stomata arranged in a uniform of multiple regions on ceramic diaphragm, when so that cation and anion moving, it is acted on by shrinkage since the bulging that thermal expansion effects generate is absorbed by anti-bulge stomata, when temperature reduces and being flowed back again, effectively prevent bulge.
Description
Technical field
Dynamic lithium battery technical field of the present invention, especially a kind of dynamic lithium battery of anti-bulge.
Background technology
Power battery is the important component of new energy battery, and power battery keeps the development of new-energy automobile in check, because
And the safety and practical performance of battery are its particularly important performance parameters, existing battery be all made of by battery cover, anode,
Diaphragm, cathode, electrolyte, battery case composition, due to electrolyte in charge and discharge inside have a large amount of cation and anion
Movement so that battery body generates heat, and leads to battery bulge, this has been the maximum problem of existing power battery.
For this problem of effective solution, the diaphragm that existing dynamic lithium battery has been all made of unlike material alleviates bulge
Generation, main diaphragm is AGM diaphragms, and effect is less desirable.
Invention content
In view of this, the main object of the present invention is to provide a kind of dynamic lithium battery of anti-bulge.
Itself the technical solution adopted is that：
A kind of dynamic lithium battery of anti-bulge, including
Ceramic-lined body, all round closure of the ceramic-lined body is open up and down,
Its part opened up and down is sealed by ceramic diaphragm component, and the ceramic diaphragm component includes the ceramic framework of outside, pottery
The upper and lower surface of porcelain framework is provided with ceramic diaphragm, and the anti-bulge arranged in a uniform of multiple regions is provided on the ceramic diaphragm
Stomata is provided with AGM partition boards on the outside of the ceramic diaphragm, battery case, the battery is provided on the outside of the AGM partition boards
The middle section of shell is provided with substrate, and the upper surface of base plate is provided with protective resin layer；
The inner surface of the substrate is provided with interior grooved rail, and positive terminal and negative terminal, the positive terminal are provided in the interior grooved rail
It is fixed on battery case with the external contravention of negative terminal.
Preferably, the ceramic-lined body closes inner lining body with ceramic diaphragm composition, is provided in the closing inner lining body
Electrolyte.
Preferably, the anti-bulge stomata is arranged in arrays, and the aperture of each anti-bulge stomata is 20~50 μm, anti-drum
The density of packet stomata is 1500~2000/cm3.
Preferably, the both sides of the AGM partition boards are provided with package ear, and the package ear wraps up the both sides of ceramic-lined body.
Preferably, the battery case includes upper shell and lower housing symmetrical above and below, if being provided on the upper shell
Dry fixing groove, the fixing groove are fixed with the interior fixed column being arranged on lower housing.
Preferably, the upper shell is identical with the structure of lower housing, includes protective casing, the both sides of the protective casing
It is provided with fastening arm, wherein the protective casing and fastening arm are wholely set, and the middle section of the protective casing is provided with card
Slot, substrate in the card slot.
Preferably, the fastening arm for being fixed on upper shell and lower housing is respectively welded in the positive terminal and the external contravention of negative terminal
On.
Preferably, the non-woven fabrics that the ceramic diaphragm is composed of polyester fiber non-woven fabric and MIcroporous polyolefin film every
The laminating microporous barrier of film.
Preferably, diaphragm seal is provided between the AGM partition boards and ceramic diaphragm, the diaphragm seal is AGM material diaphragms.
Preferably, the middle section of the inner surface of the substrate is provided with sheet metal, and the upper end of the sheet metal is provided with bullet
Property stress section, the opening of elastic stress piece both sides are U-shaped.
Beneficial effects of the present invention are：Ceramic diaphragm provided by the invention is because combining polyester fiber non-woven fabric and gathering
Lithium ion battery separator made by alkene microporous barrier increases the safety of diaphragm, and the heat for solving MIcroporous polyolefin film is received
Contracting, the forthright equal and large aperture of non-woven fabrics ceramic diaphragm of less porous gap and the performance of intensity difference etc..And due on ceramic diaphragm
It is provided with the anti-bulge stomata arranged in a uniform of multiple regions so that when cation and anion move, due to thermal expansion effects
The bulging of generation is absorbed by anti-bulge stomata, is acted on by shrinkage when temperature reduces and being flowed back again, effectively prevents bulge.
Description of the drawings
Fig. 1 is the explosive structural schematic diagram in part of the present invention；
Fig. 2 is the structural schematic diagram of battery case in the present invention；
Fig. 3 is the structural schematic diagram of substrate in the present invention；
Fig. 4 is the stereoscan photograph of MIcroporous polyolefin film,
Fig. 5 is the stereoscan photograph of polyester fiber non-woven fabric.
Wherein, the serial number in attached drawing and the title of serial number mark are as follows：
1- substrates, 2- protective casings, 3- fastening arm, 4- positive terminals, 5-AGM partition boards, 6- wrap up ear, 7- ceramics frameworks, 8- ceramics
Diaphragm, the ceramic-lined bodies of 9-, the anti-bulge stomatas of 10-, 11- fixing grooves, 12- card slots, 13- fixed columns, grooved rail in 100-, 101- gold
Belong to piece, 102- elastic stress pieces.
Specific implementation mode
Below in conjunction with attached drawing and specific embodiment, the present invention will be described in detail, herein illustrative examples of the invention
And explanation is used for explaining the present invention, but it is not as a limitation of the invention.
Referring to figs. 1 to Fig. 3, the invention discloses a kind of dynamic lithium batteries of anti-bulge, including
Ceramic-lined body 9, all round closure of the ceramic-lined body 9 is open up and down,
Its part opened up and down is sealed by ceramic diaphragm component, and the ceramic-lined body 9 is closed with ceramic diaphragm component composition
Inner lining body is provided with electrolyte in the closing inner lining body.The ceramic diaphragm component includes the ceramic framework 7 of outside, ceramics
The upper and lower surface of framework 7 is provided with ceramic diaphragm 8, and the ceramic diaphragm 8 is by polyester fiber non-woven fabric and MIcroporous polyolefin film
The laminating microporous barrier of nonwoven cloth diaphragm being composed.The anti-drum arranged in a uniform of multiple regions is provided on the ceramic diaphragm 8
Packet stomata 10, the anti-bulge stomata is arranged in arrays, and the aperture of each anti-bulge stomata is 20~50 μm, anti-bulge stomata
Density be 1500~2000/cm3.With reference to Fig. 4 and Fig. 5, ceramic diaphragm is because combining polyester fiber non-woven fabric and gathering
Lithium ion battery separator made by alkene microporous barrier increases the safety of diaphragm, and the heat for solving MIcroporous polyolefin film is received
Contracting, the forthright equal and large aperture of non-woven fabrics ceramic diaphragm of less porous gap and the performance of intensity difference etc..And due on ceramic diaphragm
It is provided with the anti-bulge stomata arranged in a uniform of multiple regions so that when cation and anion move, due to thermal expansion effects
The bulging of generation is absorbed by anti-bulge stomata, is acted on by shrinkage when temperature reduces and being flowed back again, effectively prevents bulge.
The outside of the ceramic diaphragm 8 is provided with AGM partition boards 5, and diaphragm seal is provided between the AGM partition boards and ceramic diaphragm,
The diaphragm seal is AGM material diaphragms.The outside of the AGM partition boards 5 is provided with battery case, and the both sides of the AGM partition boards 5 are set
It is equipped with package ear 6, the package ear 6 wraps up the both sides of ceramic-lined body 9.The middle section of the battery case is provided with substrate
1,1 upper surface of the substrate is provided with protective resin layer；The inner surface of the substrate 1 is provided with interior grooved rail 100, the interior grooved rail
Positive terminal 4 and negative terminal are provided in 100, the positive terminal 4 and the external contravention of negative terminal are fixed on battery case.The base
The middle section of the inner surface of plate 1 is provided with sheet metal 101, and the upper end of the sheet metal 101 is provided with elastic stress piece 102, institute
The opening for stating 102 both sides of elastic stress piece is U-shaped.
The battery case includes upper shell and lower housing symmetrical above and below, and being provided with several on the upper shell fixes
The interior fixed column 13 being arranged on slot 11, the fixing groove 11 and lower housing is fixed.
The upper shell is identical with the structure of lower housing, includes protective casing 2, and the both sides of the protective casing 2 are arranged
There is fastening arm 3, wherein the protective casing 2 and fastening arm 3 are wholely set, and the middle section of the protective casing is provided with card
Slot 23, substrate 1 in the card slot 12.The positive terminal 4 and the external contravention of negative terminal are respectively welded and are fixed on upper shell and lower housing
Fastening arm on.
Ceramic diaphragm because combine lithium ion battery made by polyester fiber non-woven fabric and MIcroporous polyolefin film every
Film, in terms of battery manufacture process, because of good temperature tolerance, good intensive properties, the advantages such as good voidage are using
110 ~ 120 degree of temperature are toasted, and will not be had an impact to inside battery material, while other than locating moisture only, can also be reduced
Electricity consumption, to improve production efficiency and save cost.In addition, the seepage velocity of electrolyte also improves production efficiency when fluid injection；
Secure context generates short circuit, diaphragm is not because the characteristics of the high temperature resistant of laminating diaphragm, lower shrinkage when battery core is pierced through by hard object
It can shrink immediately, battery is protected not come into contact in a large area oxygen and generate burning.
In the present invention, the synthesis step of the ceramic diaphragm is as follows：
1）Prepare polyester fiber non-woven fabric：Organic dibasic acid and organic diol are chosen with mass ratio as 2：It is closed made of 5 polycondensations
At fiber；The synthetic fibers are oriented through preparation or randomizing, form fibre net structure, then using mechanical, hot sticky or change
Method is reinforced；
2）Prepare MIcroporous polyolefin film：Using vistanex, nucleating agent, solvent as raw material, using mass ratio as vistanex：At
Core agent：Solvent=1000~2000：20~50：2000~3000 are prepared into polyolefin solution；Then it is molten polyolefin will to be prepared into
Liquid squeezes out and gel sheet, stretches, and film forming solvent removes surface impurity, dry, and MIcroporous polyolefin film is made in heat treatment shaping；
3）Synthesize ceramic diaphragm：It will be advised with 4 ~ 15 grams with the one or several kinds in the polyester fiber non-woven fabric of 6 ~ 20 grams of specifications
The one of which of the MIcroporous polyolefin film of lattice or several use wet processings are combined.
The technical solution disclosed in the embodiment of the present invention is described in detail above, specific implementation used herein
Example is expounded the principle and embodiment of the embodiment of the present invention, and the explanation of above example is only applicable to help to understand
The principle of the embodiment of the present invention；Meanwhile for those of ordinary skill in the art, embodiment, is being embodied according to the present invention
There will be changes in mode and application range, in conclusion the content of the present specification should not be construed as the limit to the present invention
System.
Claims (10)
1. a kind of dynamic lithium battery of anti-bulge, which is characterized in that including
Ceramic-lined body, all round closure of the ceramic-lined body is open up and down,
Its part opened up and down is sealed by ceramic diaphragm component, and the ceramic diaphragm component includes the ceramic framework of outside, pottery
The upper and lower surface of porcelain framework is provided with ceramic diaphragm, and the anti-bulge arranged in a uniform of multiple regions is provided on the ceramic diaphragm
Stomata is provided with AGM partition boards on the outside of the ceramic diaphragm, battery case, the battery is provided on the outside of the AGM partition boards
The middle section of shell is provided with substrate, and the upper surface of base plate is provided with protective resin layer；
The inner surface of the substrate is provided with interior grooved rail, and positive terminal and negative terminal, the positive terminal are provided in the interior grooved rail
It is fixed on battery case with the external contravention of negative terminal.
2. the dynamic lithium battery of anti-bulge according to claim 1, which is characterized in that the ceramic-lined body with ceramics every
Film composition closes inner lining body, and electrolyte is provided in the closing inner lining body.
3. the dynamic lithium battery of anti-bulge according to claim 1, which is characterized in that the anti-bulge stomata is arranged in matrix
The aperture of row, each anti-bulge stomata is 20~50 μm, and the density of anti-bulge stomata is 1500~2000/cm3.
4. the dynamic lithium battery of anti-bulge according to claim 1, which is characterized in that the both sides of the AGM partition boards are arranged
There are package ear, the package ear to wrap up the both sides of ceramic-lined body.
5. the dynamic lithium battery of anti-bulge according to claim 1, which is characterized in that the battery case includes right up and down
Be much of shell and lower housing, several fixing grooves be provided on the upper shell, the fixing groove be arranged on lower housing it is interior
Fixed column is fixed.
6. the dynamic lithium battery of anti-bulge according to claim 5, which is characterized in that the knot of the upper shell and lower housing
Structure is identical, includes protective casing, and the both sides of the protective casing are provided with fastening arm, wherein the protective casing and fastening
Arm is wholely set, and the middle section of the protective casing is provided with card slot, substrate in the card slot.
7. the dynamic lithium battery of anti-bulge according to claim 1, which is characterized in that the positive terminal and negative terminal are external
Contravention is respectively welded in the fastening arm for being fixed on upper shell and lower housing.
8. the dynamic lithium battery of anti-bulge according to claim 1, which is characterized in that the ceramic diaphragm is by polyester fiber
The laminating microporous barrier of nonwoven cloth diaphragm that non-woven fabrics and MIcroporous polyolefin film are composed.
9. the dynamic lithium battery of anti-bulge according to claim 1, which is characterized in that the AGM partition boards and ceramic diaphragm
Between be provided with diaphragm seal, the diaphragm seal is AGM material diaphragms.
10. the dynamic lithium battery of anti-bulge according to claim 1, which is characterized in that in the inner surface of the substrate
Between be partly provided with sheet metal, the upper end of the sheet metal is provided with elastic stress piece, and the opening of elastic stress piece both sides is in U
Type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810525650.6A CN108511785B (en) | 2018-05-28 | 2018-05-28 | Anti-bulge power lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810525650.6A CN108511785B (en) | 2018-05-28 | 2018-05-28 | Anti-bulge power lithium battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108511785A true CN108511785A (en) | 2018-09-07 |
| CN108511785B CN108511785B (en) | 2020-12-01 |
Family
ID=63401707
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810525650.6A Active CN108511785B (en) | 2018-05-28 | 2018-05-28 | Anti-bulge power lithium battery |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1988241A (en) * | 2005-12-23 | 2007-06-27 | 比亚迪股份有限公司 | Lithium ion battery and its preparing method |
| US20130130091A1 (en) * | 2007-05-30 | 2013-05-23 | Prologium Holding Inc. | Electricity supply element and ceramic separator thereof |
| CN103887464A (en) * | 2012-12-19 | 2014-06-25 | 华为技术有限公司 | Diaphragm used for lithium ion battery, preparation method thereof, and lithium ion battery |
| CN204303938U (en) * | 2014-12-27 | 2015-04-29 | 宜春金晖新能源材料有限公司 | High safe dynamic lithium battery |
| CN206931670U (en) * | 2017-06-21 | 2018-01-26 | 颍上北方动力新能源有限公司 | A kind of rechargeable lithium batteries component |
| CN107910478A (en) * | 2017-11-14 | 2018-04-13 | 广东骏东科技有限公司 | A kind of high temperature resistant is not easy the ceramic diaphragm shunk and its manufacture method and application |
-
2018
- 2018-05-28 CN CN201810525650.6A patent/CN108511785B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1988241A (en) * | 2005-12-23 | 2007-06-27 | 比亚迪股份有限公司 | Lithium ion battery and its preparing method |
| US20130130091A1 (en) * | 2007-05-30 | 2013-05-23 | Prologium Holding Inc. | Electricity supply element and ceramic separator thereof |
| CN103887464A (en) * | 2012-12-19 | 2014-06-25 | 华为技术有限公司 | Diaphragm used for lithium ion battery, preparation method thereof, and lithium ion battery |
| CN204303938U (en) * | 2014-12-27 | 2015-04-29 | 宜春金晖新能源材料有限公司 | High safe dynamic lithium battery |
| CN206931670U (en) * | 2017-06-21 | 2018-01-26 | 颍上北方动力新能源有限公司 | A kind of rechargeable lithium batteries component |
| CN107910478A (en) * | 2017-11-14 | 2018-04-13 | 广东骏东科技有限公司 | A kind of high temperature resistant is not easy the ceramic diaphragm shunk and its manufacture method and application |
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| Publication number | Publication date |
|---|---|
| CN108511785B (en) | 2020-12-01 |
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