CN115413379A - 电极组件、电池单体、电池及电极组件的制造方法和设备 - Google Patents
电极组件、电池单体、电池及电极组件的制造方法和设备 Download PDFInfo
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- CN115413379A CN115413379A CN202180006850.0A CN202180006850A CN115413379A CN 115413379 A CN115413379 A CN 115413379A CN 202180006850 A CN202180006850 A CN 202180006850A CN 115413379 A CN115413379 A CN 115413379A
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- active material
- positive electrode
- negative electrode
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Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title description 6
- 239000011149 active material Substances 0.000 claims abstract description 218
- 239000007773 negative electrode material Substances 0.000 claims abstract description 63
- 239000007774 positive electrode material Substances 0.000 claims abstract description 45
- 238000004804 winding Methods 0.000 claims abstract description 39
- 239000010410 layer Substances 0.000 claims description 114
- 239000011248 coating agent Substances 0.000 claims description 33
- 238000000576 coating method Methods 0.000 claims description 33
- 238000010030 laminating Methods 0.000 claims description 6
- 239000006183 anode active material Substances 0.000 claims description 5
- 239000011247 coating layer Substances 0.000 claims description 4
- 239000006182 cathode active material Substances 0.000 claims description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 33
- 229910052744 lithium Inorganic materials 0.000 abstract description 33
- 238000001556 precipitation Methods 0.000 abstract description 5
- 230000008021 deposition Effects 0.000 description 17
- 239000013543 active substance Substances 0.000 description 11
- 229910001416 lithium ion Inorganic materials 0.000 description 11
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 10
- 238000005452 bending Methods 0.000 description 8
- 239000003792 electrolyte Substances 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 7
- 239000000178 monomer Substances 0.000 description 7
- 238000007600 charging Methods 0.000 description 6
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- 238000010586 diagram Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- -1 polypropylene Polymers 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 2
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 235000015842 Hesperis Nutrition 0.000 description 1
- 235000012633 Iberis amara Nutrition 0.000 description 1
- 229910000572 Lithium Nickel Cobalt Manganese Oxide (NCM) Inorganic materials 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 1
- JDZCKJOXGCMJGS-UHFFFAOYSA-N [Li].[S] Chemical compound [Li].[S] JDZCKJOXGCMJGS-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010280 constant potential charging Methods 0.000 description 1
- 238000010277 constant-current charging Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- VVNXEADCOVSAER-UHFFFAOYSA-N lithium sodium Chemical compound [Li].[Na] VVNXEADCOVSAER-UHFFFAOYSA-N 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
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- 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
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
-
- 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
- H01M10/04—Construction or manufacture in general
- H01M10/0431—Cells with wound or folded electrodes
-
- 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
- H01M10/42—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
-
- 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
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0404—Methods of deposition of the material by coating on electrode collectors
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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
- 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
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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
- 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
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/102—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure
- H01M50/103—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
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- 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
- H01M2010/4292—Aspects relating to capacity ratio of electrodes/electrolyte or anode/cathode
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- H—ELECTRICITY
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- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
Abstract
本申请实施例提供了一种电极组件、电池单体、电池及电极组件的制造方法和设备,属于电池技术领域。电极组件包括负极极片和正极极片,负极极片包括位于电极组件的平直区的负极活性物质层,正极极片包括位于平直区的正极活性物质层,第一方向垂直于卷绕结构的轴向。负极活性物质层包括负极主体部和在轴向上位于负极主体部的两侧的负极边缘部,负极主体部的单位面积活性物质容量大于负极边缘部的单位面积活性物质容量;和/或,正极活性物质层包括正极主体部和在轴向上位于正极主体部的两侧的正极边缘部,正极主体部的单位面积活性物质容量小于正极边缘部的单位面积活性物质容量。这种结构的电极组件能够有效降低析锂风险,提高电池的安全性。
Description
PCT国内申请,说明书已公开。
Claims (16)
- PCT国内申请,权利要求书已公开。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/CN2021/083434 WO2022198682A1 (zh) | 2021-03-26 | 2021-03-26 | 电极组件、电池单体、电池及电极组件的制造方法和设备 |
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CN115413379A true CN115413379A (zh) | 2022-11-29 |
CN115413379B CN115413379B (zh) | 2024-01-12 |
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CN202180006850.0A Active CN115413379B (zh) | 2021-03-26 | 2021-03-26 | 电极组件、电池单体、电池及电极组件的制造方法和设备 |
Country Status (4)
Country | Link |
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US (1) | US20220311056A1 (zh) |
EP (1) | EP4089769A1 (zh) |
CN (1) | CN115413379B (zh) |
WO (1) | WO2022198682A1 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116230856A (zh) * | 2023-05-08 | 2023-06-06 | 宁德时代新能源科技股份有限公司 | 正极极片、电池以及用电设备 |
CN116387450A (zh) * | 2023-06-07 | 2023-07-04 | 宁德时代新能源科技股份有限公司 | 正极极片、电池和用电设备 |
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US20050130044A1 (en) * | 2000-12-27 | 2005-06-16 | Mitsubishi Chemical Corporation | Lithium secondary cell |
JP2016012541A (ja) * | 2014-06-30 | 2016-01-21 | 株式会社豊田自動織機 | 蓄電装置及び蓄電装置の製造方法 |
US20160181619A1 (en) * | 2013-08-02 | 2016-06-23 | Toyota Jidosha Kabushiki Kaisha | Secondary battery |
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CN110010902A (zh) * | 2019-03-29 | 2019-07-12 | 宁德新能源科技有限公司 | 电极极片和包含所述电极极片的电化学装置 |
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JP3999890B2 (ja) * | 1998-09-10 | 2007-10-31 | 三洋電機株式会社 | リチウム二次電池 |
JP4411690B2 (ja) * | 1999-06-30 | 2010-02-10 | パナソニック株式会社 | リチウムイオン二次電池 |
JP2007329077A (ja) * | 2006-06-09 | 2007-12-20 | Matsushita Electric Ind Co Ltd | 非水電解質二次電池およびその製造方法 |
JP2009026703A (ja) * | 2007-07-23 | 2009-02-05 | Toyota Motor Corp | 組電池の製造方法 |
JP2011070976A (ja) * | 2009-09-28 | 2011-04-07 | Toyota Motor Corp | リチウムイオン二次電池、車両及び電池搭載機器 |
JP6048322B2 (ja) * | 2013-06-07 | 2016-12-21 | トヨタ自動車株式会社 | リチウムイオン二次電池 |
JP2019016423A (ja) * | 2015-11-27 | 2019-01-31 | パナソニックIpマネジメント株式会社 | 円筒形電池 |
JP2020161669A (ja) * | 2019-03-27 | 2020-10-01 | 太陽誘電株式会社 | 電気化学デバイス |
CN212161994U (zh) * | 2020-06-02 | 2020-12-15 | 宁德时代新能源科技股份有限公司 | 电极组件及其制造装置、电池、电池模块、电池组、使用电池的装置 |
-
2021
- 2021-03-26 WO PCT/CN2021/083434 patent/WO2022198682A1/zh unknown
- 2021-03-26 CN CN202180006850.0A patent/CN115413379B/zh active Active
- 2021-03-26 EP EP21809899.4A patent/EP4089769A1/en active Pending
- 2021-12-28 US US17/563,309 patent/US20220311056A1/en active Pending
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116230856A (zh) * | 2023-05-08 | 2023-06-06 | 宁德时代新能源科技股份有限公司 | 正极极片、电池以及用电设备 |
CN116230856B (zh) * | 2023-05-08 | 2023-07-18 | 宁德时代新能源科技股份有限公司 | 正极极片、电池以及用电设备 |
CN116387450A (zh) * | 2023-06-07 | 2023-07-04 | 宁德时代新能源科技股份有限公司 | 正极极片、电池和用电设备 |
CN116387450B (zh) * | 2023-06-07 | 2023-10-27 | 宁德时代新能源科技股份有限公司 | 正极极片、电池和用电设备 |
Also Published As
Publication number | Publication date |
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WO2022198682A1 (zh) | 2022-09-29 |
CN115413379B (zh) | 2024-01-12 |
US20220311056A1 (en) | 2022-09-29 |
EP4089769A1 (en) | 2022-11-16 |
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