CN110429241B - 锂电池正极及其制备方法以及锂电池、供电系统和用电设备 - Google Patents
锂电池正极及其制备方法以及锂电池、供电系统和用电设备 Download PDFInfo
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- CN110429241B CN110429241B CN201910805241.6A CN201910805241A CN110429241B CN 110429241 B CN110429241 B CN 110429241B CN 201910805241 A CN201910805241 A CN 201910805241A CN 110429241 B CN110429241 B CN 110429241B
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 238000001755 magnetron sputter deposition Methods 0.000 claims abstract description 34
- 239000011248 coating agent Substances 0.000 claims abstract description 33
- 238000000576 coating method Methods 0.000 claims abstract description 33
- 239000002346 layers by function Substances 0.000 claims abstract description 33
- 239000013077 target material Substances 0.000 claims abstract description 23
- 239000006258 conductive agent Substances 0.000 claims abstract description 22
- 239000002002 slurry Substances 0.000 claims abstract description 18
- 239000010410 layer Substances 0.000 claims abstract description 17
- 239000013543 active substance Substances 0.000 claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 16
- 239000011230 binding agent Substances 0.000 claims abstract description 15
- 238000001035 drying Methods 0.000 claims abstract description 12
- 239000011159 matrix material Substances 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 238000004544 sputter deposition Methods 0.000 claims description 55
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 35
- 239000011149 active material Substances 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 26
- 229910052782 aluminium Inorganic materials 0.000 claims description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 18
- 239000002033 PVDF binder Substances 0.000 claims description 17
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 17
- 239000011888 foil Substances 0.000 claims description 15
- -1 polytetrafluoroethylene Polymers 0.000 claims description 14
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 14
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 14
- 238000000151 deposition Methods 0.000 claims description 12
- 230000008021 deposition Effects 0.000 claims description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 10
- 229920001971 elastomer Polymers 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 239000006229 carbon black Substances 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 150000002825 nitriles Chemical class 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 229910052720 vanadium Inorganic materials 0.000 claims description 4
- 229920002554 vinyl polymer Polymers 0.000 claims description 4
- 229910052726 zirconium Inorganic materials 0.000 claims description 4
- 239000012298 atmosphere Substances 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 239000000839 emulsion Substances 0.000 claims 1
- 239000006230 acetylene black Substances 0.000 description 25
- 238000006243 chemical reaction Methods 0.000 description 16
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 12
- 238000000227 grinding Methods 0.000 description 12
- 239000000203 mixture Substances 0.000 description 12
- 239000002904 solvent Substances 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 10
- 239000007789 gas Substances 0.000 description 10
- 239000004570 mortar (masonry) Substances 0.000 description 10
- 239000000779 smoke Substances 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 239000000853 adhesive Substances 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910011328 LiNi0.6Co0.2Mn0.2O2 Inorganic materials 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 229910052493 LiFePO4 Inorganic materials 0.000 description 1
- 229910002995 LiNi0.8Co0.15Al0.05O2 Inorganic materials 0.000 description 1
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
-
- 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
- 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
- H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
-
- 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
- H01M4/139—Processes of 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
- H01M4/139—Processes of manufacture
- H01M4/1391—Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
-
- 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
- H01M2004/021—Physical characteristics, e.g. porosity, surface area
-
- 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
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/028—Positive electrodes
-
- 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
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- 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)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
Description
测试项目 | 4C,200周循环容量保持率/% | 电池针刺现象 |
实施例1 | 98.5 | 电池不冒烟,不起火 |
实施例2 | 96.7 | 电池不冒烟,不起火 |
实施例3 | 99.3 | 电池不冒烟,不起火 |
实施例4 | 97.6 | 电池不冒烟,不起火 |
实施例5 | 99.2 | 电池不冒烟,不起火 |
实施例6 | 98.9 | 电池不冒烟,不起火 |
实施例7 | 98.2 | 电池不冒烟,不起火 |
对比例1 | 92.6 | 电池起火 |
对比例2 | 90.4 | 电池不冒烟,不起火 |
对比例3 | 88.3 | 电池不冒烟,不起火 |
Claims (10)
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CN201910805241.6A CN110429241B (zh) | 2019-08-29 | 2019-08-29 | 锂电池正极及其制备方法以及锂电池、供电系统和用电设备 |
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CN201910805241.6A CN110429241B (zh) | 2019-08-29 | 2019-08-29 | 锂电池正极及其制备方法以及锂电池、供电系统和用电设备 |
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CN110429241B true CN110429241B (zh) | 2021-01-12 |
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CN100527483C (zh) * | 2007-07-31 | 2009-08-12 | 北京理工大学 | 一种提高锂离子电池正极安全性的表面镀膜修饰方法 |
KR101401102B1 (ko) * | 2011-06-30 | 2014-05-30 | 주식회사 엘지화학 | 이차전지용 전극조립체 및 이를 포함한 리튬 이차전지 |
KR102396677B1 (ko) * | 2015-06-05 | 2022-05-10 | 에스케이온 주식회사 | 리튬 이차 전지용 전극 및 이를 포함하는 리튬 이차 전지 |
CN107666014A (zh) * | 2016-07-28 | 2018-02-06 | 万向二三股份公司 | 一种安全型软包装锂离子电池极耳 |
CN107768589A (zh) * | 2016-08-15 | 2018-03-06 | 万向二三股份公司 | 一种高安全型高能量密度锂离子电池 |
CN106784621A (zh) * | 2016-12-23 | 2017-05-31 | 惠州拓邦电气技术有限公司 | 锂离子电池极片及其制作方法、锂离子电池 |
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Application publication date: 20191108 Assignee: Hunan Sangrui New Material Co.,Ltd. Assignor: Thornton New Energy Technology (Changsha) Co.,Ltd. Contract record no.: X2021980013011 Denomination of invention: Lithium battery cathode and its preparation method, lithium battery, power supply system and electric equipment Granted publication date: 20210112 License type: Exclusive License Record date: 20211124 |
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Denomination of invention: Lithium battery cathode and its preparation method, as well as lithium battery, power supply system and electric equipment Effective date of registration: 20230104 Granted publication date: 20210112 Pledgee: China Everbright Bank Co.,Ltd. Changsha Huafeng Sub branch Pledgor: Hunan Sangrui New Material Co.,Ltd. Registration number: Y2023430000001 |
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Denomination of invention: Lithium battery positive electrode and its preparation method, as well as lithium battery, power supply system and electrical equipment Granted publication date: 20210112 Pledgee: China Everbright Bank Co.,Ltd. Changsha Huafeng Sub branch Pledgor: Hunan Sangrui New Material Co.,Ltd. Registration number: Y2024980002053 |