CN103700807B - A kind of high-voltage lithium ion batteries and preparation method thereof - Google Patents
A kind of high-voltage lithium ion batteries and preparation method thereof Download PDFInfo
- Publication number
- CN103700807B CN103700807B CN201310635116.8A CN201310635116A CN103700807B CN 103700807 B CN103700807 B CN 103700807B CN 201310635116 A CN201310635116 A CN 201310635116A CN 103700807 B CN103700807 B CN 103700807B
- Authority
- CN
- China
- Prior art keywords
- negative
- aluminum foil
- composite pole
- metal aluminum
- active material
- 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
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000002131 composite material Substances 0.000 claims abstract description 54
- 239000000463 material Substances 0.000 claims abstract description 45
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 40
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000011888 foil Substances 0.000 claims abstract description 40
- 229910052751 metal Inorganic materials 0.000 claims abstract description 37
- 239000002184 metal Substances 0.000 claims abstract description 37
- 239000007773 negative electrode material Substances 0.000 claims abstract description 25
- 239000007774 positive electrode material Substances 0.000 claims abstract description 25
- 239000012530 fluid Substances 0.000 claims abstract description 19
- 239000000565 sealant Substances 0.000 claims abstract description 19
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 17
- 239000011148 porous material Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000003792 electrolyte Substances 0.000 claims abstract description 11
- 238000009413 insulation Methods 0.000 claims abstract description 9
- 238000002955 isolation Methods 0.000 claims abstract description 9
- 239000006258 conductive agent Substances 0.000 claims description 32
- 239000005030 aluminium foil Substances 0.000 claims description 30
- 239000011230 binding agent Substances 0.000 claims description 29
- 239000000203 mixture Substances 0.000 claims description 18
- 238000005520 cutting process Methods 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910010707 LiFePO 4 Inorganic materials 0.000 claims description 6
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 claims description 6
- 239000002033 PVDF binder Substances 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- 239000006229 carbon black Substances 0.000 claims description 6
- 229910017052 cobalt Inorganic materials 0.000 claims description 6
- 239000010941 cobalt Substances 0.000 claims description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims description 3
- 238000007755 gap coating Methods 0.000 claims description 3
- 238000003698 laser cutting Methods 0.000 claims description 3
- 238000009490 roller compaction Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000004146 energy storage Methods 0.000 abstract description 4
- -1 Copper-Aluminum compound Chemical class 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000009466 transformation Effects 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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/661—Metal or alloys, e.g. alloy coatings
-
- 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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Abstract
The invention discloses a kind of high-voltage lithium ion batteries and preparation method thereof, comprise plus plate current-collecting body, negative current collector and some composite pole pieces, described composite pole piece adopts metal aluminum foil to be base material, the one side of metal aluminum foil scribbles positive electrode material layer, the another side of metal aluminum foil scribbles negative electrode material layer, be provided with micro-pore septum between two composite pole pieces, be full of electrolyte between two panels metal aluminum foil base material, the outer of composite pole piece adopts fluid sealant to carry out insulation isolation.The present invention only adopts metal aluminum foil as the base material of composite pole piece, and material price is low, and technique is simple, reduces the manufacturing cost of high-voltage lithium ion batteries, and substantially increases fail safe and the cycle life of lithium battery, is applicable to the application in motor vehicle and energy storage field.
Description
[technical field]
The present invention relates to the technical field of battery, particularly the technical field of electric vehicle high pressure lithium battery.
[background technology]
The battery core inside of the monomer power lithium-ion battery of current Application and Development is generally made up of a battery unit, and battery core working voltage platform scope is between 3 ~ 4V, and the charged capacity of battery core may up to 100 ampere-hours (Ah).For high capacity lithium ion battery, if battery core inside does not have other safety measure or security failure, once inner certain is short-circuited, battery core will discharge amount of heat at short notice, cause the complete failure of cell even the security incidents such as combustion explosion to occur.Electric motor car is very strict for the security requirement of power lithium-ion battery, this makes power lithium-ion battery must adopt the better electrode material of security performance, or increase extra inside battery safety measure, therefore which greatly limits the performance of lithium ion battery power performance, also reduce the possible energy density of battery pack and power density.
In order to overcome above-mentioned defect, Chinese patent 2009102435539 discloses a kind of battery core of high-voltage battery, Copper-Aluminum compound paper tinsel is adopted to make composite pole piece, but it is promoted in production in reality and is difficult to realize, because Copper-Aluminum compound paper tinsel still can not commercially be produced, manufacture difficulty and the cost of manufacture of the composite pole piece of employing Copper-Aluminum compound paper tinsel are high.
[summary of the invention]
Object of the present invention solves the problems of the prior art exactly, a kind of high-voltage lithium ion batteries and preparation method thereof is proposed, only adopt metal aluminum foil as the base material of composite pole piece, material price is low, technique is simple, reduce the manufacturing cost of high-voltage lithium ion batteries, and substantially increase fail safe and the cycle life of lithium battery, be applicable to the application in motor vehicle and energy storage field.
For achieving the above object, the present invention proposes a kind of high-voltage lithium ion batteries, comprise plus plate current-collecting body, negative current collector and some composite pole pieces, described composite pole piece adopts metal aluminum foil to be base material, the one side of metal aluminum foil scribbles positive electrode, described positive electrode is positive active material, the mixture of conductive agent and adhesive, the another side of metal aluminum foil scribbles negative material, described negative material is negative electrode active material, the mixture of conductive agent and binding agent, micro-pore septum is provided with between two composite pole pieces, electrolyte is full of between two panels metal aluminum foil base material, the outer of composite pole piece adopts fluid sealant to carry out insulation isolation, described positive active material adopts LiMn2O4, cobalt acid lithium and LiFePO 4 in a kind of or several arbitrarily mixtures, positive active material in positive electrode: conductive agent: binding agent is 73:24:3, described negative electrode active material adopts lithium titanate, negative electrode active material in negative material: conductive agent: binding agent is 73:24:3, described conductive agent adopts the mixture of graphite and carbon black, binding agent adopts polyvinylidene fluoride resin, described metal aluminum foil is pure aluminum foil, the thickness of metal aluminum foil is 0.01 to 1mm, described micro-pore septum forms by some layers of PP is stacking or is made up of the complex film stacks of some layers of PP and PE, the thickness of micro-pore septum is 20 ~ 50 μm, described fluid sealant adopts electrolyte resistance fluid sealant.
As preferably, the central area on the two sides of described composite pole piece scribbles positive electrode and negative material respectively, the surrounding of composite pole piece be provided with width be 5 ~ 25mm stay white aluminium foil, the white aluminium foil that stays on some composite pole pieces is carried out insulation isolation by described fluid sealant.MULTILAYER COMPOSITE pole piece, micro-pore septum are overlapping, just form high voltage battery core, and overlapping is more, and voltage is just higher.
As preferably, described plus plate current-collecting body comprises anode collection aluminium foil and is only coated in the positive electrode material layer of anode collection aluminium foil inside, the upper end of described anode collection aluminium foil is provided with positive pole ear, plus plate current-collecting body overlaps on the edge of some composite pole piece sides, described negative current collector comprises negative pole currect collecting aluminium foil and is only coated in the negative electrode material layer of negative pole currect collecting aluminium foil inside, the upper end of described negative pole currect collecting aluminium foil is provided with negative lug, and negative current collector overlaps on the edge of some composite pole piece opposite sides.
For achieving the above object, the preparation method of a kind of high-voltage lithium ion batteries proposed by the invention, comprises the following steps successively:
A batch mixing: positive active material, conductive agent and binding agent are mixed with positive electrode in proportion, is mixed with negative material by negative electrode active material, conductive agent and binding agent peace ratio;
B is coated with: coat positive electrode and negative material respectively at the positive and negative of metal aluminum foil, adopts gap coating and longitudinally stays white technique to be coated with;
C film-making: after the metal aluminum foil after coating being sent into baking box oven dry, be cut into some positive and negative centers and scribble positive electrode and negative material, surrounding have 5 ~ 25mm to stay the composite pole piece of white aluminium foil, prepare some plus plate current-collecting bodies with lug and negative current collector simultaneously;
D assembles: assembled after roller compaction or press compacting by some composite pole pieces, be provided with micro-pore septum, and carry out encapsulation process with fluid sealant between two composite pole pieces;
E changes into: after injecting electrolyte between two panels metal aluminum foil base material, changes into process to battery charging.
As preferably, described positive active material adopts a kind of or several arbitrarily mixture in LiMn2O4, cobalt acid lithium and LiFePO 4, positive active material in positive electrode: conductive agent: binding agent is 73:24:3, described negative electrode active material adopts lithium titanate, negative electrode active material in negative material: conductive agent: binding agent is 73:24:3, described conductive agent adopts the mixture of graphite and carbon black, and binding agent adopts polyvinylidene fluoride resin.
As preferably, the cutting method in step c is cross cutting or die-cut or directly adopt laser cutting again after adopting banding machine itemize.
Beneficial effect of the present invention: the present invention passes through metal aluminum foil as base material, make after its positive and negative applies positive electrode material layer and negative electrode material layer respectively and form composite pole piece, material price is low, technique is simple, reduce the manufacturing cost of high-voltage lithium ion batteries, and adopt micro-pore septum that two composite pole pieces are separated formation battery unit structure, multiple battery unit overlap is high-voltage battery, fluid sealant effectively can carry out insulation isolation, prevent from occurring short circuit phenomenon between composite pole piece, substantially increase fail safe and the cycle life of lithium battery, be applicable to the application in motor vehicle and energy storage field.
Feature of the present invention and advantage will be described in detail by reference to the accompanying drawings by embodiment.
[accompanying drawing explanation]
Fig. 1 is the main pseudosection of a kind of high-voltage lithium ion batteries of the present invention;
Fig. 2 is the enlarged drawing in A portion in Fig. 1;
Fig. 3 is the main pseudosection of composite pole piece in the present invention;
Fig. 4 is the left TV structure schematic diagram of a kind of high-voltage lithium ion batteries of the present invention;
Fig. 5 is the right TV structure schematic diagram of a kind of high-voltage lithium ion batteries of the present invention.
In figure: 2-plus plate current-collecting body, 3-negative current collector, 4-composite pole piece, 5-micro-pore septum, 6-electrolyte, 7-fluid sealant, 21-anode collection aluminium foil, 22-positive pole ear, 31-negative pole currect collecting aluminium foil, 32-positive pole ear, 41-metal aluminum foil, 42-positive electrode, 43-negative material, 44-stay white aluminium foil.
[embodiment]
Consult Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, a kind of high-voltage lithium ion batteries of the present invention, comprise plus plate current-collecting body 2, negative current collector 3 and some composite pole pieces 4, described composite pole piece 4 adopts metal aluminum foil 41 for base material, the one side of metal aluminum foil 41 scribbles positive electrode 42, described positive electrode 42 is positive active material, the mixture of conductive agent and adhesive, the another side of metal aluminum foil 41 scribbles negative material 43, described negative material 43 is negative electrode active material, the mixture of conductive agent and binding agent, micro-pore septum 5 is provided with between two composite pole pieces 4, electrolyte 6 is full of between two panels metal aluminum foil 41 base material, the outer of composite pole piece 4 adopts fluid sealant 7 to carry out insulation isolation, described positive active material adopts LiMn2O4, cobalt acid lithium and LiFePO 4 in a kind of or several arbitrarily mixtures, positive active material in positive electrode 42: conductive agent: binding agent is 73:24:3, described negative electrode active material adopts lithium titanate, negative electrode active material in negative material 43: conductive agent: binding agent is 73:24:3, described conductive agent adopts the mixture of graphite and carbon black, binding agent adopts polyvinylidene fluoride resin, described metal aluminum foil 41 is pure aluminum foil, the thickness of metal aluminum foil 41 is 0.01 to 1mm, described micro-pore septum 5 forms by some layers of PP is stacking or is made up of the complex film stacks of some layers of PP and PE, the thickness of micro-pore septum 5 is 20 ~ 50 μm, described fluid sealant 7 adopts electrolyte resistance fluid sealant, the central area on the two sides of described composite pole piece 4 scribbles positive electrode 42 and negative material 43 respectively, the surrounding of composite pole piece 4 be provided with width be 5 ~ 25mm stay white aluminium foil 44, the white aluminium foil 44 that stays on some composite pole pieces 4 is carried out insulation isolation by described fluid sealant 7, described plus plate current-collecting body 2 comprises anode collection aluminium foil 21 and is only coated in the positive electrode material layer 42 inside anode collection aluminium foil 21, the upper end of described anode collection aluminium foil 21 is provided with positive pole ear 22, plus plate current-collecting body 2 overlaps on the edge of some composite pole piece 4 sides, described negative current collector 3 comprises negative pole currect collecting aluminium foil 31 and is only coated in the negative electrode material layer 43 inside negative pole currect collecting aluminium foil 31, the upper end of described negative pole currect collecting aluminium foil 31 is provided with negative lug 32, negative current collector 3 overlaps on the edge of some composite pole piece 4 opposite sides,
The preparation method of a kind of high-voltage lithium ion batteries disclosed in this invention, comprises the following steps successively:
A batch mixing: by positive active material, conductive agent and binding agent by being mixed with positive electrode 42 in proportion, is mixed with negative material 43 by negative electrode active material, conductive agent and binding agent peace ratio;
B is coated with: coat positive electrode 42 and negative material 43 respectively at the positive and negative of metal aluminum foil 41, adopts gap coating and longitudinally stays white technique to be coated with;
C film-making: after the metal aluminum foil 41 after coating being sent into baking box oven dry, be cut into some positive and negative centers and scribble positive electrode 42 and negative material 43, surrounding have 5 ~ 25mm to stay the composite pole piece 4 of white aluminium foil 44, prepare some plus plate current-collecting bodies 2 with lug and negative current collector 3 simultaneously;
D assembles: assembled after roller compaction or press compacting by some composite pole pieces 4, be provided with micro-pore septum 5 between two composite pole pieces 4, and carry out encapsulation process with fluid sealant 7;
E changes into: after injecting electrolyte 6 between two panels metal aluminum foil 41 base material, changes into process to battery charging.
Described positive active material adopts a kind of or several arbitrarily mixture in LiMn2O4, cobalt acid lithium and LiFePO 4, positive active material in positive electrode 42: conductive agent: binding agent is 73:24:3, described negative electrode active material adopts lithium titanate, negative electrode active material in negative material 43: conductive agent: binding agent is 73:24:3, described conductive agent adopts the mixture of graphite and carbon black, binding agent adopts polyvinylidene fluoride resin, and the cutting method in step c is cross cutting or die-cut or directly adopt laser cutting again after adopting banding machine itemize.
The course of work of the present invention:
The present invention passes through metal aluminum foil 41 as base material, by positive active material, conductive agent and binding agent make positive electrode 42 in after the ratio mixing of 73:24:3, by negative electrode active material, conductive agent and binding agent make negative material 43 in after the ratio mixing of 73:24:3, make after metal aluminum foil 41 positive and negative applies positive electrode material layer 42 and negative electrode material layer 43 respectively and form composite pole piece 4, by some composite pole pieces 4 through drying, assemble after cutting and compaction treatment, material price is low, technique is simple, reduce the manufacturing cost of high-voltage lithium ion batteries, and adopt micro-pore septum 5 that two composite pole pieces 4 are separated formation battery unit structure, fluid sealant 7 effectively can carry out insulation isolation, prevent from occurring short circuit phenomenon between composite pole piece 4, substantially increase fail safe and the cycle life of lithium battery, effective drainage can be carried out with the plus plate current-collecting body 2 of lug and negative current collector 3, be applicable to the application in motor vehicle and energy storage field.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, anyly all belongs to protection scope of the present invention to the scheme after simple transformation of the present invention.
Claims (6)
1. a high-voltage lithium ion batteries, it is characterized in that: comprise plus plate current-collecting body (2), negative current collector (3) and some composite pole pieces (4), described composite pole piece (4) adopts metal aluminum foil (41) to be base material, the one side of metal aluminum foil (41) scribbles positive electrode (42), described positive electrode (42) is positive active material, the mixture of conductive agent and adhesive, the another side of metal aluminum foil (41) scribbles negative material (43), described negative material (43) is negative electrode active material, the mixture of conductive agent and binding agent, micro-pore septum (5) is provided with between two composite pole pieces (4), electrolyte (6) is full of between two panels metal aluminum foil (41) base material, the outer of composite pole piece (4) adopts fluid sealant (7) to carry out insulation isolation, described positive active material adopts LiMn2O4, cobalt acid lithium and LiFePO 4 in a kind of or several arbitrarily mixtures, positive active material in positive electrode (42): conductive agent: binding agent is 73:24:3, described negative electrode active material adopts lithium titanate, negative electrode active material in negative material (43): conductive agent: binding agent is 73:24:3, described conductive agent adopts the mixture of graphite and carbon black, binding agent adopts polyvinylidene fluoride resin, described metal aluminum foil (41) is pure aluminum foil, the thickness of metal aluminum foil (41) is 0.01 to 1mm, described micro-pore septum (5) is made up of the complex film stacks of some layers of PP or PP and PE, the thickness of micro-pore septum (5) is 20 ~ 50 μm, described fluid sealant (7) adopts electrolyte resistance fluid sealant.
2. a kind of high-voltage lithium ion batteries as claimed in claim 1, it is characterized in that: the central area on the two sides of described composite pole piece (4) scribbles positive electrode (42) and negative material (43) respectively, the surrounding of composite pole piece (4) be provided with width be 5 ~ 25mm stay white aluminium foil (44), the white aluminium foil (44) that stays on some composite pole pieces (4) is carried out insulation isolation by described fluid sealant (7).
3. a kind of high-voltage lithium ion batteries as claimed in claim 1, it is characterized in that: described plus plate current-collecting body (2) comprises anode collection aluminium foil (21) and is only coated in the positive electrode material layer (42) of anode collection aluminium foil (21) inner side, the upper end of described anode collection aluminium foil (21) is provided with positive pole ear (22), plus plate current-collecting body (2) overlaps on the edge of some composite pole pieces (4) side, described negative current collector (3) comprises negative pole currect collecting aluminium foil (31) and is only coated in the negative electrode material layer (43) of negative pole currect collecting aluminium foil (31) inner side, the upper end of described negative pole currect collecting aluminium foil (31) is provided with negative lug (32), negative current collector (3) overlaps on the edge of some composite pole pieces (4) opposite side.
4. the preparation method of a kind of high-voltage lithium ion batteries as claimed in claim 1, comprises the following steps successively:
A) batch mixing: positive active material, conductive agent and binding agent are mixed with in proportion positive electrode (42), is mixed with negative material (43) in proportion by negative electrode active material, conductive agent and binding agent;
B) be coated with: coat positive electrode (42) and negative material (43) respectively at the positive and negative of metal aluminum foil (41), adopt gap coating and longitudinally stay white technique to be coated with;
C) film-making: after the metal aluminum foil (41) after coating being sent into baking box oven dry, be cut into some positive and negative centers and scribble positive electrode (42) and negative material (43), surrounding have 5 ~ 25mm to stay the composite pole piece (4) of white aluminium foil (44), prepare some plus plate current-collecting bodies with lug (2) and negative current collector (3) simultaneously;
D) assemble: some composite pole pieces (4) are assembled after roller compaction or press compacting, is provided with micro-pore septum (5) between two composite pole pieces (4), and carries out encapsulation process with fluid sealant (7);
E) change into: after injecting electrolyte (6) between two panels metal aluminum foil (41) base material, process is changed into battery charging.
5. the preparation method of a kind of high-voltage lithium ion batteries as claimed in claim 4, it is characterized in that: described positive active material adopts a kind of or several arbitrarily mixture in LiMn2O4, cobalt acid lithium and LiFePO 4, positive active material in positive electrode (42): conductive agent: binding agent is 73:24:3, described negative electrode active material adopts lithium titanate, negative electrode active material in negative material (43): conductive agent: binding agent is 73:24:3, described conductive agent adopts the mixture of graphite and carbon black, and binding agent adopts polyvinylidene fluoride resin.
6. the preparation method of a kind of high-voltage lithium ion batteries as claimed in claim 4, is characterized in that: the cutting method in step c is cross cutting or laser cutting or die-cut again after adopting banding machine itemize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310635116.8A CN103700807B (en) | 2013-11-29 | 2013-11-29 | A kind of high-voltage lithium ion batteries and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310635116.8A CN103700807B (en) | 2013-11-29 | 2013-11-29 | A kind of high-voltage lithium ion batteries and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103700807A CN103700807A (en) | 2014-04-02 |
| CN103700807B true CN103700807B (en) | 2016-01-06 |
Family
ID=50362273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310635116.8A Active CN103700807B (en) | 2013-11-29 | 2013-11-29 | A kind of high-voltage lithium ion batteries and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103700807B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106384846A (en) * | 2016-10-14 | 2017-02-08 | 四川赛尔雷新能源科技有限公司 | Method for coating battery core of lithium battery with solid diaphragm adhesive in insulation manner |
| CN106425110A (en) * | 2016-10-28 | 2017-02-22 | 深圳瑞隆新能源科技有限公司 | Manufacturing method of high-specific-surface-area current collector |
| CN106486631B (en) * | 2016-10-28 | 2023-08-22 | 珠海鹏辉能源有限公司 | High-voltage quick-charge lithium ion battery and preparation method thereof |
| CN111416103B (en) * | 2019-01-08 | 2022-07-22 | 宁德新能源科技有限公司 | Electrode with composite layer and protective layer of support structure for improving battery performance |
| CN111430671B (en) * | 2019-12-26 | 2022-06-21 | 蜂巢能源科技有限公司 | Bipolar pole piece and preparation method thereof, lithium ion battery and preparation method thereof |
| CN112186130A (en) * | 2020-08-25 | 2021-01-05 | 合肥国轩高科动力能源有限公司 | Bipolar composite electrode plate and preparation method thereof |
| CN113258127B (en) * | 2021-05-31 | 2023-09-15 | 浙江大学 | Current collector-negative electrode integrated bipolar lithium secondary battery and method thereof |
| CN115799443B (en) * | 2023-02-06 | 2023-05-12 | 中自环保科技股份有限公司 | Microporous aluminum foil electrode of sodium ion battery and preparation method thereof |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1713417A (en) * | 2004-06-25 | 2005-12-28 | 三星Sdi株式会社 | Electrode and rechargeable battery therewith |
| CN101651234A (en) * | 2008-08-13 | 2010-02-17 | 比亚迪股份有限公司 | Lithium-ion secondary battery |
| CN101719562A (en) * | 2009-12-25 | 2010-06-02 | 中国科学院电工研究所 | Electrical core of high-voltage battery |
| CN101882693A (en) * | 2010-06-24 | 2010-11-10 | 东莞新能源电子科技有限公司 | Lithium-ion secondary battery and preparation method of cathode sheet thereof |
| CN102037584A (en) * | 2008-05-22 | 2011-04-27 | 松下电器产业株式会社 | Electrode group for secondary battery and secondary battery using the same |
| CN102044694A (en) * | 2010-11-23 | 2011-05-04 | 中国科学院电工研究所 | High-voltage battery |
| CN102361095A (en) * | 2011-10-24 | 2012-02-22 | 奇瑞汽车股份有限公司 | Lithium ion battery with high specific power and preparation method for same |
| CN102420312A (en) * | 2011-11-04 | 2012-04-18 | 北京好风光储能技术有限公司 | High-voltage lithium ion battery, composite electrode couple and preparation methods of high-voltage lithium ion battery and composite electrode couple |
| CN102447093A (en) * | 2011-12-23 | 2012-05-09 | 天津力神电池股份有限公司 | Lithium ion battery |
| WO2013005302A1 (en) * | 2011-07-05 | 2013-01-10 | トヨタ自動車株式会社 | Lithium ion rechargeable battery and method of manufacturing lithium ion rechargeable battery |
| CN103219521A (en) * | 2012-01-20 | 2013-07-24 | 北京好风光储能技术有限公司 | Bipolarity current collector and preparation method |
-
2013
- 2013-11-29 CN CN201310635116.8A patent/CN103700807B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1713417A (en) * | 2004-06-25 | 2005-12-28 | 三星Sdi株式会社 | Electrode and rechargeable battery therewith |
| CN102037584A (en) * | 2008-05-22 | 2011-04-27 | 松下电器产业株式会社 | Electrode group for secondary battery and secondary battery using the same |
| CN101651234A (en) * | 2008-08-13 | 2010-02-17 | 比亚迪股份有限公司 | Lithium-ion secondary battery |
| CN101719562A (en) * | 2009-12-25 | 2010-06-02 | 中国科学院电工研究所 | Electrical core of high-voltage battery |
| CN101882693A (en) * | 2010-06-24 | 2010-11-10 | 东莞新能源电子科技有限公司 | Lithium-ion secondary battery and preparation method of cathode sheet thereof |
| CN102044694A (en) * | 2010-11-23 | 2011-05-04 | 中国科学院电工研究所 | High-voltage battery |
| WO2013005302A1 (en) * | 2011-07-05 | 2013-01-10 | トヨタ自動車株式会社 | Lithium ion rechargeable battery and method of manufacturing lithium ion rechargeable battery |
| CN102361095A (en) * | 2011-10-24 | 2012-02-22 | 奇瑞汽车股份有限公司 | Lithium ion battery with high specific power and preparation method for same |
| CN102420312A (en) * | 2011-11-04 | 2012-04-18 | 北京好风光储能技术有限公司 | High-voltage lithium ion battery, composite electrode couple and preparation methods of high-voltage lithium ion battery and composite electrode couple |
| CN102447093A (en) * | 2011-12-23 | 2012-05-09 | 天津力神电池股份有限公司 | Lithium ion battery |
| CN103219521A (en) * | 2012-01-20 | 2013-07-24 | 北京好风光储能技术有限公司 | Bipolarity current collector and preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103700807A (en) | 2014-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103700807B (en) | A kind of high-voltage lithium ion batteries and preparation method thereof | |
| CN102683751B (en) | High-capacity high-magnification square lithium ion power battery and manufacturing method thereof | |
| CN103236564B (en) | Manufacturing method of lithium ion power battery with specific energy of 250Wh/Kg | |
| CN104008893A (en) | Manufacturing method of lithium ion mixed type capacitor and lithium ion mixed type capacitor | |
| CN102683752B (en) | Laminated lithium ion power battery and manufacturing method thereof | |
| CN103545544A (en) | Laminated rapidly-charged single lithium battery and preparation method thereof | |
| CN106449126B (en) | A kind of embedding lithium method using the 3rd electrode pair lithium-ion capacitor | |
| CN103456994A (en) | Making method of gel-electrolyte lithium ion battery | |
| CN105406131A (en) | Capacitive type lithium-ion power battery with hybrid negative electrode plates | |
| CN109817868A (en) | High-voltage and high-safety lithium ion battery and preparation method thereof | |
| CN105489395A (en) | Production method of lithium ion super capacitor, and lithium ion super capacitor | |
| CN104409781A (en) | Method for manufacturing square power polymer lithium ion battery | |
| CN202601777U (en) | Large-capacity high-magnification square lithium ion power battery | |
| CN101667658A (en) | Iron phosphate lithium-based blended anode material series lithium ion battery | |
| CN202275893U (en) | Lithium ion battery | |
| CN113745640A (en) | High-power cylindrical lithium ion battery and processing technology | |
| CN116014361A (en) | Lithium battery diaphragm, lithium battery and preparation method | |
| CN103066321B (en) | Large capacity high magnification type Soft Roll ferric phosphate lithium cell | |
| CN102779970B (en) | Pole ear output connector for multi-layer positive-negative pole of high ratio power poly-lithium battery | |
| CN102290597A (en) | Safe-type high-energy density lithium-ion battery | |
| CN103427111A (en) | Lithium-ion energy storage battery and manufacturing method thereof | |
| CN203434247U (en) | Nickel cobalt lithium manganate cylindrical high-magnification battery | |
| CN105655578A (en) | Lithium ion secondary battery made from small-particle-size lithium cobalt oxide anode material | |
| CN202917600U (en) | Aluminum-plastic packed high-power lithium ion battery | |
| CN205429091U (en) | Mixed negative pole pole piece lithium ion power batteries of electric capacity type |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160321 Address after: 313100 Changxin Economic Development Zone, Zhejiang, Huzhou Patentee after: ZHEJIANG XINGHAI ENERGY TECHNOLOGY CO., LTD. Address before: 313100 Zhejiang city of Huzhou province Changxing County economic and Technological Development Zone Taihu Road No. 1346 Zhejiang Xinghai Energy Technology Co. Patentee before: Xu Aokui |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 313100 Changxing Economic Development Zone, Huzhou City, Zhejiang Province Patentee after: Zhejiang Xinghai Energy Technology Co.,Ltd. Address before: 313100 Changxing Economic Development Zone, Huzhou City, Zhejiang Province Patentee before: ZHEJIANG XINGHAI ENERGY TECHNOLOGY CO., LTD. |