CN109300698B - 一种锂离子电容器及其制备方法 - Google Patents
一种锂离子电容器及其制备方法 Download PDFInfo
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- CN109300698B CN109300698B CN201811136733.2A CN201811136733A CN109300698B CN 109300698 B CN109300698 B CN 109300698B CN 201811136733 A CN201811136733 A CN 201811136733A CN 109300698 B CN109300698 B CN 109300698B
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- pole piece
- positive pole
- lithium
- positive
- lithium ion
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 58
- 239000003990 capacitor Substances 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title abstract description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 37
- 238000004519 manufacturing process Methods 0.000 claims abstract description 26
- 239000011230 binding agent Substances 0.000 claims abstract description 22
- 239000006258 conductive agent Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000003466 welding Methods 0.000 claims abstract description 14
- 239000011149 active material Substances 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 10
- 239000007774 positive electrode material Substances 0.000 claims abstract description 9
- 239000003792 electrolyte Substances 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 230000003213 activating effect Effects 0.000 claims abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 39
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 30
- 239000000126 substance Substances 0.000 claims description 29
- 239000011888 foil Substances 0.000 claims description 23
- 239000002033 PVDF binder Substances 0.000 claims description 20
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 20
- 229910052782 aluminium Inorganic materials 0.000 claims description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- 239000011889 copper foil Substances 0.000 claims description 15
- 239000007773 negative electrode material Substances 0.000 claims description 14
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 12
- 239000002041 carbon nanotube Substances 0.000 claims description 12
- -1 polytetrafluoroethylene Polymers 0.000 claims description 12
- 238000005096 rolling process Methods 0.000 claims description 12
- 239000002002 slurry Substances 0.000 claims description 11
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 239000011267 electrode slurry Substances 0.000 claims description 8
- 229910002804 graphite Inorganic materials 0.000 claims description 8
- 239000010439 graphite Substances 0.000 claims description 8
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 238000010277 constant-current charging Methods 0.000 claims description 6
- 238000009830 intercalation Methods 0.000 claims description 6
- 230000002687 intercalation Effects 0.000 claims description 6
- 239000004816 latex Substances 0.000 claims description 6
- 229920000126 latex Polymers 0.000 claims description 6
- 239000011572 manganese Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 6
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910021389 graphene Inorganic materials 0.000 claims description 4
- 238000003475 lamination Methods 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 2
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 claims description 2
- PFYQFCKUASLJLL-UHFFFAOYSA-N [Co].[Ni].[Li] Chemical compound [Co].[Ni].[Li] PFYQFCKUASLJLL-UHFFFAOYSA-N 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910021385 hard carbon Inorganic materials 0.000 claims description 2
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 claims description 2
- DVATZODUVBMYHN-UHFFFAOYSA-K lithium;iron(2+);manganese(2+);phosphate Chemical compound [Li+].[Mn+2].[Fe+2].[O-]P([O-])([O-])=O DVATZODUVBMYHN-UHFFFAOYSA-K 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 239000002931 mesocarbon microbead Substances 0.000 claims description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 claims description 2
- 229910021384 soft carbon Inorganic materials 0.000 claims description 2
- OCKPCBLVNKHBMX-UHFFFAOYSA-N butylbenzene Chemical compound CCCCC1=CC=CC=C1 OCKPCBLVNKHBMX-UHFFFAOYSA-N 0.000 claims 2
- SOXUFMZTHZXOGC-UHFFFAOYSA-N [Li].[Mn].[Co].[Ni] Chemical compound [Li].[Mn].[Co].[Ni] SOXUFMZTHZXOGC-UHFFFAOYSA-N 0.000 claims 1
- ZYXUQEDFWHDILZ-UHFFFAOYSA-N [Ni].[Mn].[Li] Chemical compound [Ni].[Mn].[Li] ZYXUQEDFWHDILZ-UHFFFAOYSA-N 0.000 claims 1
- 238000004804 winding Methods 0.000 abstract 1
- 239000002174 Styrene-butadiene Substances 0.000 description 9
- 229920003048 styrene butadiene rubber Polymers 0.000 description 9
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000011115 styrene butadiene Substances 0.000 description 5
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 4
- 229910013716 LiNi Inorganic materials 0.000 description 4
- 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 description 4
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 4
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 4
- HFCVPDYCRZVZDF-UHFFFAOYSA-N [Li+].[Co+2].[Ni+2].[O-][Mn]([O-])(=O)=O Chemical compound [Li+].[Co+2].[Ni+2].[O-][Mn]([O-])(=O)=O HFCVPDYCRZVZDF-UHFFFAOYSA-N 0.000 description 3
- 239000003575 carbonaceous material Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000007600 charging Methods 0.000 description 2
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- 229910000572 Lithium Nickel Cobalt Manganese Oxide (NCM) Inorganic materials 0.000 description 1
- FBDMTTNVIIVBKI-UHFFFAOYSA-N [O-2].[Mn+2].[Co+2].[Ni+2].[Li+] Chemical compound [O-2].[Mn+2].[Co+2].[Ni+2].[Li+] FBDMTTNVIIVBKI-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012983 electrochemical energy storage Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 description 1
- 229910001486 lithium perchlorate Inorganic materials 0.000 description 1
- 229910001496 lithium tetrafluoroborate Inorganic materials 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- CQDGTJPVBWZJAZ-UHFFFAOYSA-N monoethyl carbonate Chemical compound CCOC(O)=O CQDGTJPVBWZJAZ-UHFFFAOYSA-N 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 229910021392 nanocarbon Inorganic materials 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/04—Hybrid capacitors
- H01G11/06—Hybrid capacitors with one of the electrodes allowing ions to be reversibly doped thereinto, e.g. lithium ion capacitors [LIC]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
- H01G11/36—Nanostructures, e.g. nanofibres, nanotubes or fullerenes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/46—Metal oxides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
- H01G11/86—Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for 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
- Y02E60/13—Energy storage using capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nanotechnology (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
Description
实施例 | 能量密度(Wh/Kg) | 功率密度(W/kg) |
实施例1 | 43.8 | 5200 |
实施例2 | 44.6 | 4950 |
实施例3 | 40.4 | 5500 |
实施例4 | 39.1 | 5800 |
实施例5 | 37.6 | 6300 |
实施例6 | 42.6 | 5120 |
实施例7 | 41.8 | 5100 |
实施例8 | 44.1 | 5240 |
实施例9 | 43.0 | 5130 |
实施例10 | 42.4 | 5060 |
实施例11 | 43.4 | 5160 |
Claims (5)
Priority Applications (1)
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CN201811136733.2A CN109300698B (zh) | 2018-09-28 | 2018-09-28 | 一种锂离子电容器及其制备方法 |
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CN201811136733.2A CN109300698B (zh) | 2018-09-28 | 2018-09-28 | 一种锂离子电容器及其制备方法 |
Publications (2)
Publication Number | Publication Date |
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CN109300698A CN109300698A (zh) | 2019-02-01 |
CN109300698B true CN109300698B (zh) | 2022-02-18 |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112435861B (zh) * | 2020-10-16 | 2022-01-11 | 惠州亿纬锂能股份有限公司 | 一种混合电容器的正极及其制备方法和用途 |
CN114566393A (zh) * | 2022-03-23 | 2022-05-31 | 上海奥威科技开发有限公司 | 一种用于锂离子电容器的复合正极材料及其应用 |
CN114613614A (zh) * | 2022-04-11 | 2022-06-10 | 浙江浙能技术研究院有限公司 | 一种全固态锂离子电容器及其制备方法 |
CN115148954A (zh) * | 2022-08-11 | 2022-10-04 | 江西嘉盛新能源有限公司 | 一种14500圆柱钢壳钠离子电池阴极片及其制备方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101252043A (zh) * | 2007-04-25 | 2008-08-27 | 北京理工大学 | 一种锂离子超级电容器负极的预嵌锂方法 |
CN101436684A (zh) * | 2007-11-12 | 2009-05-20 | 富士重工业株式会社 | 蓄电装置 |
CN103915262A (zh) * | 2013-01-04 | 2014-07-09 | 深圳清华大学研究院 | 锂离子电容器负极预嵌锂的方法 |
CN105551815A (zh) * | 2016-02-02 | 2016-05-04 | 中国科学院青岛生物能源与过程研究所 | 一种锂离子电容器及其制备方法 |
CN107256971A (zh) * | 2017-05-23 | 2017-10-17 | 马鞍山活力电动科技有限公司 | 一种软包三元动力电池及其制备方法 |
CN107731541A (zh) * | 2017-09-13 | 2018-02-23 | 东莞凯德新能源有限公司 | 一种圆柱形高功率锂离子电容器及其制备方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104681311B (zh) * | 2014-12-12 | 2017-12-19 | 宁波中车新能源科技有限公司 | 一种锂离子电容器的新型预嵌锂方法 |
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2018
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101252043A (zh) * | 2007-04-25 | 2008-08-27 | 北京理工大学 | 一种锂离子超级电容器负极的预嵌锂方法 |
CN101436684A (zh) * | 2007-11-12 | 2009-05-20 | 富士重工业株式会社 | 蓄电装置 |
CN103915262A (zh) * | 2013-01-04 | 2014-07-09 | 深圳清华大学研究院 | 锂离子电容器负极预嵌锂的方法 |
CN105551815A (zh) * | 2016-02-02 | 2016-05-04 | 中国科学院青岛生物能源与过程研究所 | 一种锂离子电容器及其制备方法 |
CN107256971A (zh) * | 2017-05-23 | 2017-10-17 | 马鞍山活力电动科技有限公司 | 一种软包三元动力电池及其制备方法 |
CN107731541A (zh) * | 2017-09-13 | 2018-02-23 | 东莞凯德新能源有限公司 | 一种圆柱形高功率锂离子电容器及其制备方法 |
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