CN115702518A - 电芯以及应用所述电芯的电子装置 - Google Patents
电芯以及应用所述电芯的电子装置 Download PDFInfo
- Publication number
- CN115702518A CN115702518A CN202180041175.5A CN202180041175A CN115702518A CN 115702518 A CN115702518 A CN 115702518A CN 202180041175 A CN202180041175 A CN 202180041175A CN 115702518 A CN115702518 A CN 115702518A
- Authority
- CN
- China
- Prior art keywords
- empty foil
- pole piece
- section
- current collector
- electrode assembly
- 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.)
- Pending
Links
- 239000011888 foil Substances 0.000 claims abstract description 148
- 238000005452 bending Methods 0.000 claims abstract description 63
- 239000011149 active material Substances 0.000 claims abstract description 48
- 238000004804 winding Methods 0.000 claims abstract description 38
- 239000013543 active substance Substances 0.000 claims abstract description 13
- 238000003466 welding Methods 0.000 claims description 14
- 230000000977 initiatory effect Effects 0.000 claims 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 8
- 229910052744 lithium Inorganic materials 0.000 description 8
- 238000009413 insulation Methods 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
Images
Classifications
-
- 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
- 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
- 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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/536—Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/538—Connection of several leads or tabs of wound or folded electrode stacks
-
- 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
Abstract
一种电芯，包括电极组件，电极组件包括：第一极片，包括第一集流体和设置于第一集流体表面的第一活性物质层，第一集流体还包括未设置第一活性物质层的第一空箔区；第二极片；隔膜，设置在第一极片与第二极片之间；电极组件通过第一极片、隔膜、第二极片依序卷绕而成；在电极组件的卷绕方向，第一极片的第二层至次外层中的每一层各包括第一平坦段、分别设置在第一平坦段两侧的第一弯折段和第二弯折段，第一弯折段和第二弯折段分别为第一极片中每一层的两侧发生弯折的部分，第一空箔区设置在第一平坦段，第一空箔区的两侧分别与第一弯折段和第二弯折段连接，且在电极组件的长度方向上，第一空箔区未设置第一活性物质层。一种用电装置包括所述电芯。
Description
PCT国内申请，说明书已公开。
Claims (14)
- PCT国内申请，权利要求书已公开。
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2021/076149 WO2022170451A1 (zh) | 2021-02-09 | 2021-02-09 | 电芯以及应用所述电芯的电子装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115702518A true CN115702518A (zh) | 2023-02-14 |
Family
ID=82838069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202180041175.5A Pending CN115702518A (zh) | 2021-02-09 | 2021-02-09 | 电芯以及应用所述电芯的电子装置 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20230395871A1 (zh) |
| EP (1) | EP4293788A4 (zh) |
| JP (1) | JP2024506640A (zh) |
| CN (1) | CN115702518A (zh) |
| WO (1) | WO2022170451A1 (zh) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116435714B (zh) * | 2023-06-09 | 2024-02-02 | 宁德时代新能源科技股份有限公司 | 电极组件、制造方法、电池单体、电池及用电设备 |
| CN116666775B (zh) * | 2023-07-27 | 2023-11-14 | 宁德新能源科技有限公司 | 锂离子电池、电化学装置以及电子设备 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5729320B2 (ja) * | 2012-02-08 | 2015-06-03 | 株式会社豊田自動織機 | 蓄電装置の製造方法 |
| CN205828514U (zh) * | 2016-07-08 | 2016-12-21 | 宁德新能源科技有限公司 | 二次电芯 |
| CN206040883U (zh) * | 2016-09-22 | 2017-03-22 | 宁德新能源科技有限公司 | 一种卷绕式电芯 |
| CN206451767U (zh) * | 2016-12-27 | 2017-08-29 | 宁德新能源科技有限公司 | 一种卷绕式电芯 |
| CN206541895U (zh) * | 2017-03-09 | 2017-10-03 | 东莞市永邦新能源科技有限公司 | 一种防形变锂电池卷芯 |
| CN110808377B (zh) * | 2018-08-06 | 2021-04-27 | 宁德新能源科技有限公司 | 电芯、电池以及电子设备 |
| CN211350858U (zh) * | 2020-03-25 | 2020-08-25 | 宁德新能源科技有限公司 | 电化学装置及电子装置 |
-
2021
- 2021-02-09 JP JP2023548303A patent/JP2024506640A/ja active Pending
- 2021-02-09 EP EP21925134.5A patent/EP4293788A4/en active Pending
- 2021-02-09 WO PCT/CN2021/076149 patent/WO2022170451A1/zh active Application Filing
- 2021-02-09 CN CN202180041175.5A patent/CN115702518A/zh active Pending
-
2023
- 2023-08-23 US US18/454,354 patent/US20230395871A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022170451A1 (zh) | 2022-08-18 |
| EP4293788A4 (en) | 2024-05-01 |
| US20230395871A1 (en) | 2023-12-07 |
| JP2024506640A (ja) | 2024-02-14 |
| EP4293788A1 (en) | 2023-12-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211789341U (zh) | 电芯、应用所述电芯的电池及电子装置 | |
| CN115702518A (zh) | 电芯以及应用所述电芯的电子装置 | |
| CN216213939U (zh) | 一种电芯、电池及电子设备 | |
| CN212571274U (zh) | 锂离子电池及电子设备 | |
| CN114039080B (zh) | 一种电芯、电池及用电装置 | |
| CN113258028B (zh) | 电化学装置与电子装置 | |
| WO2022133710A1 (zh) | 电化学装置和用电装置 | |
| CN218867347U (zh) | 一种电芯极组及电芯 | |
| CN114975864A (zh) | 极片、电芯结构、锂电池以及电子设备 | |
| CN218918942U (zh) | 一种极片及电池 | |
| CN218448361U (zh) | 卷绕式电芯、电池、电池组件及用电装置 | |
| CN218867151U (zh) | 一种电极构件、电池单体、电池及用电装置 | |
| CN213340472U (zh) | 卷芯、电池以及电子产品 | |
| CN212434666U (zh) | 一种阳极片及锂离子电池 | |
| CN116745926A (zh) | 电极组件及其制造方法、电池单体、电池和用电装置 | |
| CN218160451U (zh) | 一种极片和电池 | |
| CN219123266U (zh) | 一种电芯及电池 | |
| CN219534818U (zh) | 电芯及电池 | |
| CN219267694U (zh) | 一种极片及电芯 | |
| CN217468707U (zh) | 电化学装置及用电设备 | |
| CN218548523U (zh) | 一种电芯及电池 | |
| CN219677319U (zh) | 一种三电极电池 | |
| CN218632165U (zh) | 电芯和电池 | |
| CN213660574U (zh) | 一种锂离子电池用极片及锂离子电池 | |
| CN218602513U (zh) | 一种电芯及电池 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |