CN202474071U - Lithium ion battery - Google Patents
Lithium ion battery Download PDFInfo
- Publication number
- CN202474071U CN202474071U CN201120424620XU CN201120424620U CN202474071U CN 202474071 U CN202474071 U CN 202474071U CN 201120424620X U CN201120424620X U CN 201120424620XU CN 201120424620 U CN201120424620 U CN 201120424620U CN 202474071 U CN202474071 U CN 202474071U
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- CN
- China
- Prior art keywords
- lithium ion
- ion battery
- negative
- positive
- electrode
- 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.)
- Expired - Lifetime
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 28
- 239000000919 ceramic Substances 0.000 claims abstract description 18
- 229910010293 ceramic material Inorganic materials 0.000 claims description 10
- 239000008151 electrolyte solution Substances 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 239000006183 anode active material Substances 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 4
- 239000007773 negative electrode material Substances 0.000 claims description 4
- 239000007774 positive electrode material Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 abstract description 9
- -1 poly ethylene Polymers 0.000 abstract description 4
- 229920000573 polyethylene Polymers 0.000 abstract description 2
- 229920001155 polypropylene Polymers 0.000 abstract description 2
- 239000011255 nonaqueous electrolyte Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 description 14
- 230000004888 barrier function Effects 0.000 description 8
- 239000004743 Polypropylene Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 239000011259 mixed solution Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- KFDQGLPGKXUTMZ-UHFFFAOYSA-N [Mn].[Co].[Ni] Chemical compound [Mn].[Co].[Ni] KFDQGLPGKXUTMZ-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052788 barium Inorganic materials 0.000 description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000002923 metal particle Substances 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229910021332 silicide Inorganic materials 0.000 description 2
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 description 1
- QXZUUHYBWMWJHK-UHFFFAOYSA-N [Co].[Ni] Chemical compound [Co].[Ni] QXZUUHYBWMWJHK-UHFFFAOYSA-N 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- MZZUATUOLXMCEY-UHFFFAOYSA-N cobalt manganese Chemical compound [Mn].[Co] MZZUATUOLXMCEY-UHFFFAOYSA-N 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- ZAUUZASCMSWKGX-UHFFFAOYSA-N manganese nickel Chemical compound [Mn].[Ni] ZAUUZASCMSWKGX-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920002627 poly(phosphazenes) Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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- 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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- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The utility model relates to a lithium ion battery comprising an electrode component, nonaqueous electrolyte and a casing. The electrode component comprises a positive electrode piece and a negative electrode piece, and the electrode component and the nonaqueous electrolyte are sealed in the casing. The lithium ion battery is characterized in that the electrode component also comprises a ceramic diaphragm coated on the negative electrode piece or/and the positive electrode piece and used for separating the negative electrode piece from the positive electrode piece. Compared with the lithium ion battery using a PE/PP (poly ethylene/propene polymer) diaphragm, the lithium ion battery has the advantages of high energy density and high safety performance.
Description
[technical field]
The utility model relates to a kind of lithium ion battery.
[background technology]
Along with the fast development of electronics industry, information technology, people to all kinds of appliances power sources require increasingly high.Lithium ion battery is used to multiple mobile portable equipment, like mobile phone, camera, notebook computer, portable power tool etc.And the also diversification day by day of the charging modes of battery as is used conventional power source charges, and the stand-by power supply battery charge uses that USB interface on the power consumption equipment charges etc.
Unexpectedly the advantage of striving of lithium ion battery is; Have higher power and energy density performance; Have stronger charging and discharge effect simultaneously, in addition, because relative other lithiums electricity products of lithium ion battery have more security reliability and long life; In the process that makes the transition to hybrid power (HEV), plug-in hybrid (PHEV) and pure electric vehicle (EV), lithium-ions battery is absolutely necessary.Be the new forms of energy industry of representative with solar energy, wind energy in recent years and be that the driven by power industry development of representative is rapid with electric tool, electric bicycle, Segway Human Transporter, electric motor car and electric motor car (EV/PHEV).
Conventional lithium ion battery; Comprise electrode assemblie, nonaqueous electrolytic solution and shell; Said electrode assemblie comprise stack successively and rolling around or positive plate, negative plate and the PE/PP barrier film of Z-shaped lap wound, said electrode assemblie and said nonaqueous electrolytic solution are sealed in the said shell.Many, the processed complex of parts that the lithium ion battery of this structure needs in the operation of coiling or Z-shaped lap wound; And when battery owing to overcharge or internal electrode contact will be overheated when causing short circuit; The PE/PP barrier film just begins to melt in 150 deg.c, and internal short-circuit is easy to be extended to the large tracts of land short circuit from small size, causes the further heat release of battery; Positive and negative, electrolyte utmost point material sharply decomposes, thereby causes the battery explosion burning.Though product catching fires such as mobile phone, digital product, notebook computer are danger closes, the battery of this equipment generally has only one or several battery.Thousands of battery have been comprised in the on-vehicle battery group, in case the catching fire consequence can be much serious.
Because unexpected more residual electrically conductive particles or metal particle in a large amount of in process of production battery, the result causes many notebook computers manufacturer to recall millions of cells in notebook computer.Under rare occasion, these electrically conductive particles or metal particle can pass inside battery and cause the direct contact of positive and negative electrode to cause internal short-circuit.Will cause battery overheated like this, thereby cause the PE/PP barrier film of inside battery to lose efficacy and the more short circuit phenomenon of further appearance, make overheated situation continued worsen.Reach after certain temperature, electrode material will decompose and emit oxygen, and the overheated speed of battery will be faster, finally causes blast and on fire.
[utility model content]
The technical problem that the utility model will solve provides a kind of easy to process, lithium ion battery that security performance is good.
Above-mentioned technical problem solves through following technical scheme:
A kind of lithium ion battery; Comprise electrode assemblie, nonaqueous electrolytic solution and shell; Said electrode assemblie comprises positive plate, negative plate; Said electrode assemblie and said nonaqueous electrolytic solution are sealed in the said shell, it is characterized in that, said negative plate is or/and be coated with on the said positive plate to separate the ceramic diaphragm layer of said negative plate and said electrode film.
Further scheme is, said ceramic diaphragm layer be ceramic material through adhesive at said negative plate or/and the membrane layer that forms on the said positive plate.Wherein one or more materials of the oxide of said ceramic material employing aluminium, zirconium, silicon, titanium, barium, nitride, carbide, silicide, boride.
Further scheme is that the thickness of said ceramic diaphragm is the 1-35 micron.
Further scheme is, the stacked or coiling of said positive plate and said negative plate.
Further scheme is, said positive plate comprise the positive electrode collector body with and be coated on the active positive electrode material layer on the said positive electrode collector body.In said anode active material layer employing cobalt acid lithium material, nickel manganese cobalt ternary material and the lithium manganate material one or both or three kinds of materials.
Further scheme is, said negative plate comprise the negative electrode collector body with and be coated on the negative electrode active material layer on the said negative electrode collector body.Said anode active material layer adopts Delanium or native graphite.
The utility model lithium ion battery has the following advantages:
1) owing to the ceramic diaphragm layer be and positive plate or negative plate one, in the operation of coiling or lap wound, simple relatively;
2) high-energy-density: traditional lithium ion battery is owing to adopt thicker PE/PP barrier film, and energy density can only be accomplished 105-140Wh/Kg, and adopts its energy density of lithium ion battery of ceramic diaphragm layer can reach 200Wh/Kg;
3) high safety performance: the ceramic diaphragm layer can be high temperature resistant; When reaching uniform temperature and be 250-350 degree centigrade, can't melt, guaranteeing between the electrode not can short circuit; Let battery slowly lose efficacy and do not blast; Can guarantee that the ceramic diaphragm layer is injury-free to prevent short circuit, effectively avoid causing large tracts of land internal short-circuit, the phenomenon of battery explosion grade on fire because the PP/PE barrier film just melts at 150 degrees centigrade.
[description of drawings]
Fig. 1 is the schematic cross-section of the electrode assemblie of the utility model;
Fig. 2 is the enlarged diagram of A part among Fig. 1.
[embodiment]
Extremely shown in Figure 2 like Fig. 1; A kind of lithium ion battery of the utility model; Comprise electrode assemblie 1, nonaqueous electrolytic solution and shell; Electrode assemblie 1 is sealed in the shell with nonaqueous electrolytic solution, and electrode assemblie 1 comprises positive plate 101, the negative plate 102 that the rolling winding is put, be coated with on the negative plate 102 with separate electrode film 101 and negative plate 102 ceramic diaphragm layer 103.
The membrane layer of ceramic diaphragm layer for processing by ceramic material and binder combination; Be that the ceramic diaphragm layer is the membrane layer that is formed on pole piece through adhesive by ceramic material; Specifically be that following mode is processed: ceramic material, adhesive material and group of solvents are synthesized mixed solution; Wherein, by weight, ceramic material accounts for the 5%-50% of mixed solution; Mixed solution is coated on the pole piece to form ceramic diaphragm through impregnation method, The tape casting and spraying process then, and the thickness of ceramic diaphragm 103 is 1-35 micron (μ m).
Wherein, ceramic material can adopt oxide, nitride, carbide, the silicide of aluminium, zirconium, silicon, titanium, barium, wherein one or more materials of boride.
Adhesive material is butadiene-styrene rubber or polyphosphazene polymer vinylidene fluoride material.
Solvent adopts nmp solution or water.
The electrode assemblie of the utility model can adopt laminated structure or takeup type structure, and electrode assemblie shown in Figure 1 adopts the takeup type structure.
The test contrast
The lithium ion battery that provides two kinds of structures now is to carry out the instance test relatively, and battery capacity is 2000mAh, adopts the takeup type structure; Identical materials is: positive plate uses aluminium foil; Negative plate uses Copper Foil, and anode active material layer is used cobalt acid lithium, and anode active material layer is used Delanium.
This patent battery: negative plate surface-coated 10 μ m ceramic diaphragm layers, ceramic material is an aluminium oxide Al
2O
3, adhesive material is a butadiene-styrene rubber, solvent is a nmp solution, by weight, ceramic material accounts for 10% of mixed solution.
Control cell: barrier film uses the double-deck polypropylene of 20 μ m, polyethylene barrier film.
Table one
Visible by table one; Experimental result: the capacity of the lithium ion battery of the utility model and internal resistance and conventional batteries (using the PE/PP barrier film) are as good as; 800 residual capacities of normal temperature cycle life are more than 80%, and 60 ℃ of cycle lives can reach 500 residual capacities more than 70%; Security performance test all can be passed through, and overcharges at 3C/10V, is superior to conventional batteries aspect the tests such as acupuncture, heavy impact, external short circuit, and especially the 3C/10V over-charging can accomplish 100% all through testing.
The utility model is not limited to the foregoing description, for example, the ceramic diaphragm layer can only be coated on the positive plate or be coated in positive plate and negative plate on; Therefore, based on simple replacement the foregoing description, that do not make creative work, should belong to the scope that the utility model discloses.
Claims (7)
1. lithium ion battery; Comprise electrode assemblie, nonaqueous electrolytic solution and shell; Said electrode assemblie comprises positive plate, negative plate; Said electrode assemblie and said nonaqueous electrolytic solution are sealed in the said shell, it is characterized in that, said negative plate is or/and be coated with on the said positive plate to separate the ceramic diaphragm layer of said negative plate and said electrode film.
2. lithium ion battery according to claim 1 is characterized in that, said ceramic diaphragm layer be ceramic material through adhesive at said negative plate or/and the membrane layer that forms on the said positive plate.
3. lithium ion battery according to claim 1 is characterized in that, the thickness of said ceramic diaphragm is the 1-35 micron.
4. according to the arbitrary described lithium ion battery of claim 1 to 3, it is characterized in that the stacked or coiling of said positive plate and said negative plate.
5. according to the arbitrary described lithium ion battery of claim 1 to 3, it is characterized in that, said positive plate comprise the positive electrode collector body with and be coated on the active positive electrode material layer on the said positive electrode collector body.
6. according to the arbitrary described lithium ion battery of claim 1 to 3, it is characterized in that, said negative plate comprise the negative electrode collector body with and be coated on the negative electrode active material layer on the said negative electrode collector body.
7. lithium ion battery according to claim 6 is characterized in that, said anode active material layer adopts Delanium or native graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120424620XU CN202474071U (en) | 2011-10-31 | 2011-10-31 | Lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120424620XU CN202474071U (en) | 2011-10-31 | 2011-10-31 | Lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202474071U true CN202474071U (en) | 2012-10-03 |
Family
ID=46922211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120424620XU Expired - Lifetime CN202474071U (en) | 2011-10-31 | 2011-10-31 | Lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202474071U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107275670A (en) * | 2017-07-06 | 2017-10-20 | 钟旭航 | The preparation method of lithium-ion-power cell and preparation method thereof, its barrier film and barrier film, and for forming the slurry of barrier film |
-
2011
- 2011-10-31 CN CN201120424620XU patent/CN202474071U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107275670A (en) * | 2017-07-06 | 2017-10-20 | 钟旭航 | The preparation method of lithium-ion-power cell and preparation method thereof, its barrier film and barrier film, and for forming the slurry of barrier film |
| WO2019007225A1 (en) * | 2017-07-06 | 2019-01-10 | 钟旭航 | Lithium ion power battery and manufacturing method therefor, a diaphragm and a manufacturing method therefor, and slurry for forming diaphragm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 209 No. 519000 Guangdong province Zhuhai city Doumen District Xinqing Science and Technology Industrial Park, Mount Everest Boulevard Patentee after: Zhuhai CosMX Battery Co.,Ltd. Address before: 209 No. 519000 Guangdong province Zhuhai city Doumen District Xinqing Science and Technology Industrial Park, Mount Everest Boulevard Patentee before: ZHUHAI COSLIGHT BATTERY Co.,Ltd. Address after: 209 No. 519000 Guangdong province Zhuhai city Doumen District Xinqing Science and Technology Industrial Park, Mount Everest Boulevard Patentee after: ZHUHAI COSLIGHT BATTERY Co.,Ltd. Address before: 209 No. 519000 Guangdong province Zhuhai city Doumen District Xinqing Science and Technology Industrial Park, Mount Everest Boulevard Patentee before: ZHUHAI COSLIGHT BATTERY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |