CN103199262A - Manufacturing method of high-capacity high-magnification high-safety lithium ion battery - Google Patents
Manufacturing method of high-capacity high-magnification high-safety lithium ion battery Download PDFInfo
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- CN103199262A CN103199262A CN2013101078738A CN201310107873A CN103199262A CN 103199262 A CN103199262 A CN 103199262A CN 2013101078738 A CN2013101078738 A CN 2013101078738A CN 201310107873 A CN201310107873 A CN 201310107873A CN 103199262 A CN103199262 A CN 103199262A
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- lithium ion
- ion battery
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- power capacity
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000002033 PVDF binder Substances 0.000 claims abstract description 24
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000000843 powder Substances 0.000 claims abstract description 18
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 18
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 18
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000003792 electrolyte Substances 0.000 claims abstract description 15
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 10
- 239000008367 deionised water Substances 0.000 claims abstract description 8
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 8
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 239000003292 glue Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 17
- 238000002156 mixing Methods 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 239000011889 copper foil Substances 0.000 claims description 10
- 230000004888 barrier function Effects 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 8
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 claims description 7
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims description 7
- 239000005030 aluminium foil Substances 0.000 claims description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052744 lithium Inorganic materials 0.000 claims description 6
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 5
- 239000012046 mixed solvent Substances 0.000 claims description 5
- 229910052493 LiFePO4 Inorganic materials 0.000 claims description 4
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 150000002148 esters Chemical class 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 229910001290 LiPF6 Inorganic materials 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 claims description 2
- 229910001486 lithium perchlorate Inorganic materials 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 abstract 2
- 239000002174 Styrene-butadiene Substances 0.000 abstract 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract 1
- 229960001866 silicon dioxide Drugs 0.000 description 16
- 239000002931 mesocarbon microbead Substances 0.000 description 9
- 239000011888 foil Substances 0.000 description 7
- 239000011230 binding agent Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 239000006258 conductive agent Substances 0.000 description 6
- 238000004513 sizing Methods 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 239000011258 core-shell material Substances 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 3
- 239000007774 positive electrode material Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 2
- 239000011149 active material Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 230000035777 life prolongation Effects 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a manufacturing method of a high-capacity high-magnification high-safety lithium ion battery. A positive pole material, a netty current collector, a negative pole material, a diaphragm and an electrolyte are adopted, and the positive pole material and the negative pole material are applied to the current collector to prepare a pole piece and prepare the battery. The preparation method of the current collector comprises the following steps of: (1) in an agitator kettle, dissolving PVDF (polyvinylidene fluoride) or PTFE (polytetrafluoroethylene) into NMP (N-methylpyrrolidone), or dissolving CMC into deionized water, then adding SBR (styrene butadiene rubber), stirring for 3-6hours, then adding a power mixture of one or more of silicon dioxide and aluminum oxide, with a concentration of 0.5-2%, and stirring so that powder is uniformly dispersed in the PVDF solution; and (2) applying a glue solution of the powder to the netty current collector by using a coater, and baking with an oven, so that the thickness of the powder on the current collector is 0.5-3mu m. The manufacturing method of the high-capacity high-magnification high-safety lithium ion battery has the beneficial effects of being simple in preparation, easy for production, and suitable for large-scale popularization and application.
Description
Technical field
The present invention relates to the lithium ion battery manufacture technology field, particularly relate to the manufacture method of a kind of high power capacity, high magnification, highly secure lithium ion battery.
Background technology
In the chemical power source system, lithium rechargeable battery has output voltage height (3.6V) for traditional battery, high energy density and long cycle life, and lithium ion battery becomes the member in power supply market rapidly.Along with oil-firedly gradually reduce, environmental pollution and people are for the enhancing of environmental consciousness, the mixed electric car battery of development of new or pure electronic battery and respective battery technology obtain significant progress.
Lithium ion battery partly is made up of positive pole, negative pole, barrier film, electrolyte, collector etc., wherein collector seems extremely important as the positive and negative pole material supporter, positive electrode, negative material are coated on the collector by certain coating method, are assembled into battery through different operations then.For the energy density that improves lithium ion battery, the utilance of active material and the high rate performance of battery, the researcher has carried out a large amount of work, improve the performance of positive electrode by technology such as doping, coatings as the scientific research personnel, seek novel negative material to substitute the graphite type material that present lithium ion battery is adopted, the development of adopting solid electrolyte to substitute technology such as liquid electrolyte has all promoted the progress of lithium ion battery.But the researcher is fewer to the concern of collector, and most lithium ion battery manufacturer also seldom improves collector.Collector as Chinese patent CN1945878A both positive and negative polarity is foil with holes; positive pole is aluminium foil with holes, and negative pole is Copper Foil with holes, but this patent is unfavorable for lithium ion battery electrical conductivity in charge and discharge process; and this collector adopts known method punching, large-scale production complexity.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides the manufacture method of a kind of high power capacity, high magnification, highly secure lithium ion battery, solve problems such as the electrokinetic cell capacity is low, high rate performance is poor, fail safe is low.
The technical solution adopted in the present invention is: a kind of high power capacity, high magnification, the manufacture method of highly secure lithium ion battery, it is characterized in that: adopt positive electrode, reticulated collectors, negative material, barrier film, electrolyte, will be just, negative material is coated to be made pole piece and makes battery on the collector, the making step of described collector is as follows: (1) is dissolved in PVDF (Kynoar) or PTFE (polytetrafluoroethylene) among the NMP (N-methyl pyrrolidone) in agitated kettle or CMC (sodium cellulose glycolate) is dissolved in the back adds SBR (butadiene-styrene rubber) in the deionized water, mixing time 3-6h, then with silicon dioxide, a kind of in the alundum (Al or both powder mixtures add wherein, concentration 0.5-2%, after stirring, powder is scattered in the PVDF solution uniformly; (2) with coating machine the glue of powder is coated in netted collector, after the baking oven baking, powder at the thickness of reticulated collectors at 0.5-3 μ m.
As preferably, described positive electrode adopts LiFePO4 or LiMn2O4 or cobalt acid lithium.
As preferably, described negative material adopts native graphite or Delanium.
As preferably, described barrier film adopts polyethylene, polypropylene or both blendings.
As preferably, the solute of described electrolyte adopts LiPF6 or LiClO4, and the electrolyte organic solvent adopts propylene carbonate ester (PC), ethylene carbonate (EC), dimethyl carbonate (DMC), diethyl carbonate (DEC), the binary of the first and second basic carbonic esters (MEC) composition or the mixed solvent of ternary.
As preferably, described positive electrode is coated on improved netted aluminium foil, and negative material is coated on improved netted Copper Foil.
As preferably, NMP in the PVDF dissolving in the described step (1), the concentration of PVDF is 1-10%, mixing time is 3-6h.
As preferably, CMC is dissolved in the deionized water in the described step (1), and the concentration of CMC is 0.8-1.6%, and mixing time 3-6h adds the SBR of 1.5-3.6% then.
As preferably, the mode by blade coating in the described step (2) is coated in powder on the collector uniformly.
Compared with prior art, the invention has the beneficial effects as follows:
(1) collector of both positive and negative polarity pole piece adopts netted foil, more is conducive to the transmission of lithium ion battery electric current when big multiplying power discharging, and current density is more even;
(2) owing to adopt netted collector, the capacity of cell, has been improved at gravimetric specific energy in corresponding conserve batteries space and then increased the lithium ion battery volumetric specific energy;
(3) apply layer of silicon dioxide, alundum (Al powder at collector, increased the fail safe cycle life prolongation of battery simultaneously of lithium ion battery.
This method preparation is simple, is easy to produce, and is suitable for large-scale promotion application.
Embodiment
In order more to be expressly understood technical scheme of the present invention, below the present invention is further described.
A kind of high power capacity of the present invention, high magnification, the manufacture method of highly secure lithium ion battery, it is characterized in that: adopt positive electrode, reticulated collectors, negative material, barrier film, electrolyte, will be just, negative material is coated to be made pole piece and makes battery on the collector, the making step of described collector is as follows: (1) is dissolved in PVDF (Kynoar) or PTFE (polytetrafluoroethylene) among the NMP (N-methyl pyrrolidone) in agitated kettle or CMC (sodium cellulose glycolate) is dissolved in the back adds SBR (butadiene-styrene rubber) in the deionized water, mixing time 3-6h, then with silicon dioxide, a kind of in the alundum (Al or both powder mixtures add wherein, concentration 0.5-2%, after stirring, powder is scattered in the PVDF solution uniformly; (2) with coating machine the glue of powder is coated in netted collector, after the baking oven baking, powder at the thickness of reticulated collectors at 0.5-3 μ m.
Embodiment one
Add an amount of NMP in agitated kettle, add the PVDF of powdery then, PVDF concentration is that the mixing time of 5%, PVDF is 3h, treats after PVDF is dissolved among the NMP fully silicon-dioxide powdery to be added, and concentration of silicon dioxide is 1%, and solution prepares standby.Silicon dioxde solution is coated on netted aluminium foil and the netted Copper Foil collector uniformly with coating machine, silicon-dioxide powdery is 1 μ m at the thickness of netted aluminium foil and netted Copper Foil, its porosity is 50%, the aperture is 80nm, positive electrode active materials is LiMn2O4, negative active core-shell material is MCMB (MCMB), makes 7568270 rectangular lithium ion batteries, and capacity is 10Ah.
The manufacturing of positive plate: LiMn2O4, binding agent, conductive agent are configured to anode sizing agent according to formula rate, anode sizing agent is coated on the improved netted aluminum foil current collector, through baking, roll-in, cut into positive plate;
The manufacturing of negative plate: MCMB, binding agent, conductive agent are configured to cathode size according to formula rate, cathode size is coated on the improved netted Copper Foil collector, through baking, roll-in, cut into negative plate;
Positive plate, negative plate, barrier film are assembled into electric core, place housing to inject electrolyte, it is solute that electrolyte adopts the lithium hexafluoro phosphate of 1M, EC:DMC:DEC=1:1: 1 mixed solvent, through change into, behind the partial volume, the volume of battery specific capacity has increased by 15% accordingly.
Embodiment 2
Add an amount of NMP in agitated kettle, add the PVDF of powdery then, PVDF concentration is that the mixing time of 5%, PVDF is 3h, treats after PVDF is dissolved among the NMP fully silicon-dioxide powdery to be added, and concentration of silicon dioxide is 1.5%; CMC is dissolved in the deionized water, and the concentration of CMC is 1.0%, adds 1.5% SBR then, after treating to dissolve fully silicon-dioxide powdery is added, and it is standby that concentration is that 1%, two solution prepares.Silicon dioxde solution is coated on the netted aluminum foil current collector uniformly with coating machine, and silicon-dioxide powdery is 1.5 μ m at the thickness of netted aluminium foil, and its porosity is 50%, and the aperture is 80nm; The CMC solution of silicon dioxide is coated on the netted Copper Foil uniformly, and thickness is 1 μ m, and its porosity is 50%, the aperture is 80nm, and positive electrode active materials is nano-grade lithium iron phosphate, and negative active core-shell material is MCMB (MCMB), make 7568270 rectangular lithium ion batteries, capacity is 10Ah.
The manufacturing of positive plate: LiFePO4, binding agent, conductive agent are configured to anode sizing agent according to formula rate, anode sizing agent is coated on the improved netted aluminum foil current collector, through baking, roll-in, cut into positive plate;
The manufacturing of negative plate: MCMB, binding agent, conductive agent are configured to cathode size according to formula rate, cathode size is coated on the improved netted Copper Foil collector, through baking, roll-in, cut into negative plate;
Positive plate, negative plate, barrier film are assembled into electric core, place housing to inject electrolyte, it is solute that electrolyte adopts the lithium hexafluoro phosphate of 1M, EC:DMC:DEC=1:1: 1 mixed solvent, through change into, behind the partial volume, battery is when the 20C multiplying power discharging, capability retention is more than 98%.
Embodiment 3
Add an amount of NMP in agitated kettle, add the PVDF of powdery then, PVDF concentration is that the mixing time of 6%, PVDF is 5h, treats after PVDF is dissolved among the NMP fully silicon-dioxide powdery to be added, and concentration of silicon dioxide is 1%; CMC is dissolved in the deionized water, and the concentration of CMC is 1.40%, adds 2.0% SBR then, after treating to dissolve fully silicon-dioxide powdery is added, and concentration is 1%, and solution prepares standby.Silicon dioxde solution is coated on the netted aluminum foil current collector uniformly with coating machine, and silicon-dioxide powdery is 1 μ m at the thickness of netted aluminium foil, and its porosity is 50%, and the aperture is 80nm; The CMC solution of silicon dioxide is coated on the netted Copper Foil uniformly, thickness is 1.5 μ m, its porosity is 50%, the aperture is 80nm, positive electrode active materials is nano-grade lithium iron phosphate, negative active core-shell material is MCMB (MCMB), makes 7568270 rectangular lithium ion batteries, and capacity is 10Ah.
The manufacturing of positive plate: LiFePO4, binding agent, conductive agent are configured to anode sizing agent according to formula rate, anode sizing agent is coated on the improved netted aluminum foil current collector, through baking, roll-in, cut into positive plate;
The manufacturing of negative plate: MCMB, binding agent, conductive agent are configured to cathode size according to formula rate, cathode size is coated on the improved netted Copper Foil collector, through baking, roll-in, cut into negative plate;
Positive plate, negative plate, barrier film are assembled into electric core, place housing to inject electrolyte, it is solute that electrolyte adopts the lithium hexafluoro phosphate of 1M, EC:DMC:DEC=1:1: 1 mixed solvent, through change into, behind the partial volume, battery is put through overcharging, crossing, short-circuit test, and battery is not on fire, do not explode, do not smolder, no leakage.
The above only is preferred embodiments of the present invention, so all equivalences of doing according to the described structure of patent claim of the present invention, feature and principle change or modify, is included in the patent claim of the present invention.
Claims (9)
1. high power capacity, high magnification, the manufacture method of highly secure lithium ion battery, it is characterized in that: adopt positive electrode, reticulated collectors, negative material, barrier film, electrolyte, will be just, negative material is coated to be made pole piece and makes battery on the collector, the making step of described collector is as follows: (1) is dissolved in PVDF (Kynoar) or PTFE (polytetrafluoroethylene) among the NMP (N-methyl pyrrolidone) in agitated kettle or CMC (sodium cellulose glycolate) is dissolved in the back adds SBR (butadiene-styrene rubber) in the deionized water, mixing time 3-6h, then with silicon dioxide, a kind of in the alundum (Al or both powder mixtures add wherein, concentration 0.5-2%, after stirring, powder is scattered in the PVDF solution uniformly; (2) with coating machine the glue of powder is coated in netted collector, after the baking oven baking, powder at the thickness of reticulated collectors at 0.5-3 μ m.
2. the manufacture method of high power capacity according to claim 1, high magnification, highly secure lithium ion battery is characterized in that: described positive electrode employing LiFePO4 or LiMn2O4 or cobalt acid lithium.
3. the manufacture method of high power capacity according to claim 1, high magnification, highly secure lithium ion battery is characterized in that: described negative material employing native graphite or Delanium.
4. the manufacture method of high power capacity according to claim 1, high magnification, highly secure lithium ion battery is characterized in that: described barrier film employing polyethylene, polypropylene or both blendings.
5. the manufacture method of high power capacity according to claim 1, high magnification, highly secure lithium ion battery, it is characterized in that: the solute of described electrolyte adopts LiPF6 or LiClO4, and the electrolyte organic solvent adopts propylene carbonate ester (PC), ethylene carbonate (EC), dimethyl carbonate (DMC), diethyl carbonate (DEC), the binary of the first and second basic carbonic esters (MEC) composition or the mixed solvent of ternary.
6. the manufacture method of high power capacity according to claim 1, high magnification, highly secure lithium ion battery, it is characterized in that: described positive electrode is coated on improved netted aluminium foil, and negative material is coated on improved netted Copper Foil.
7. the manufacture method of high power capacity according to claim 1, high magnification, highly secure lithium ion battery is characterized in that: NMP in the PVDF dissolving in the described step (1), and the concentration of PVDF is 1-10%, mixing time is 3-6h.
8. the manufacture method of high power capacity according to claim 1, high magnification, highly secure lithium ion battery, it is characterized in that: CMC is dissolved in the deionized water in the described step (1), the concentration of CMC is 0.8-1.6%, and mixing time 3-6h adds the SBR of 1.5-3.6% then.
9. the manufacture method of high power capacity according to claim 1, high magnification, highly secure lithium ion battery, it is characterized in that: the mode by blade coating in the described step (2) is coated in powder on the collector uniformly.
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| CN2013101078738A CN103199262A (en) | 2013-03-29 | 2013-03-29 | Manufacturing method of high-capacity high-magnification high-safety lithium ion battery |
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| CN2013101078738A CN103199262A (en) | 2013-03-29 | 2013-03-29 | Manufacturing method of high-capacity high-magnification high-safety lithium ion battery |
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| CN103199262A true CN103199262A (en) | 2013-07-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110311089A (en) * | 2019-06-11 | 2019-10-08 | 银隆新能源股份有限公司 | A kind for the treatment of process for preventing electrodes of lithium-ion batteries from losing powder in process |
| CN113690403A (en) * | 2021-08-25 | 2021-11-23 | 蜂巢能源科技有限公司 | Battery pole group, preparation method thereof and lithium ion battery |
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| US20090176147A1 (en) * | 2005-12-19 | 2009-07-09 | Panasonic Corporation | Lithium Ion Secondary Battery |
| CN101558527A (en) * | 2007-01-16 | 2009-10-14 | 松下电器产业株式会社 | Nonaqueous electrolyte secondary battery |
| CN102044661A (en) * | 2009-10-23 | 2011-05-04 | 比克国际(天津)有限公司 | Method for preparing lithium ion battery slurry |
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2013
- 2013-03-29 CN CN2013101078738A patent/CN103199262A/en active Pending
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|---|---|---|---|---|
| US20090176147A1 (en) * | 2005-12-19 | 2009-07-09 | Panasonic Corporation | Lithium Ion Secondary Battery |
| CN101558527A (en) * | 2007-01-16 | 2009-10-14 | 松下电器产业株式会社 | Nonaqueous electrolyte secondary battery |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110311089A (en) * | 2019-06-11 | 2019-10-08 | 银隆新能源股份有限公司 | A kind for the treatment of process for preventing electrodes of lithium-ion batteries from losing powder in process |
| CN113690403A (en) * | 2021-08-25 | 2021-11-23 | 蜂巢能源科技有限公司 | Battery pole group, preparation method thereof and lithium ion battery |
| CN113690403B (en) * | 2021-08-25 | 2022-12-27 | 蜂巢能源科技有限公司 | Battery pole group, preparation method thereof and lithium ion battery |
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Application publication date: 20130710 |