CN113875037A - 二次电池、其制备方法及含有该二次电池的装置 - Google Patents
二次电池、其制备方法及含有该二次电池的装置 Download PDFInfo
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- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
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Abstract
一种二次电池(5)、其制备方法及含有该二次电池(5)的装置。具体地,二次电池(5)中,负极膜层包括第一负极膜层(103)和第二负极膜层(102),所述第一负极膜层(103)设置在负极集流体(101)至少一个表面上且包括第一负极活性材料,所述第二负极膜层(102)设置在第一负极膜层(103)上且包括第二负极活性材料;所述第一负极活性材料包括天然石墨,且所述第一负极活性材料满足:12%≤A≤18%;所述第二负极活性材料包括人造石墨,且所述第二负极活性材料满足:20%≤B≤30%;其中,A为当第一负极活性材料在受到15000N作用力后测试的反弹率,B为当第二负极活性材料在受到15000N作用力后测试的反弹率。该二次电池(5)可以在较高能量密度的前提下,兼顾较好的动力学性能和高温存储性能。
Description
PCT国内申请,说明书已公开。
Claims (12)
- 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/CN2020/088443 WO2021217628A1 (zh) | 2020-04-30 | 2020-04-30 | 二次电池、其制备方法及含有该二次电池的装置 |
Publications (2)
Publication Number | Publication Date |
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CN113875037A true CN113875037A (zh) | 2021-12-31 |
CN113875037B CN113875037B (zh) | 2023-08-04 |
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CN202080006122.5A Active CN113875037B (zh) | 2020-04-30 | 2020-04-30 | 二次电池、其制备方法及含有该二次电池的装置 |
Country Status (6)
Country | Link |
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US (1) | US11322739B2 (zh) |
EP (1) | EP3926707A4 (zh) |
JP (1) | JP7234403B2 (zh) |
KR (1) | KR20210134924A (zh) |
CN (1) | CN113875037B (zh) |
WO (1) | WO2021217628A1 (zh) |
Families Citing this family (1)
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WO2024087068A1 (zh) * | 2022-10-26 | 2024-05-02 | 宁德新能源科技有限公司 | 电化学装置及电子设备 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003346788A (ja) * | 2002-05-30 | 2003-12-05 | Yuasa Corp | 電池用負極およびそれを用いた電池 |
CN101047235A (zh) * | 2006-03-30 | 2007-10-03 | 索尼株式会社 | 负极和二次电池 |
CN102931381A (zh) * | 2011-08-12 | 2013-02-13 | 宁波杉杉新材料科技有限公司 | 一种各向同性的石墨二次颗粒及其制备方法和用途 |
CN108808068A (zh) * | 2018-05-10 | 2018-11-13 | 宁德时代新能源科技股份有限公司 | 二次电池 |
CN109704324A (zh) * | 2017-10-26 | 2019-05-03 | 宁德时代新能源科技股份有限公司 | 一种电极材料及二次电池 |
CN110346728A (zh) * | 2019-06-12 | 2019-10-18 | 中兴高能技术有限责任公司 | 监控、分析锂离子电池负极极片反弹的方法及锂离子电池 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101592128B1 (ko) | 2011-07-29 | 2016-02-05 | 도요타지도샤가부시키가이샤 | 리튬 이온 이차 전지 |
JP2016105349A (ja) * | 2013-03-15 | 2016-06-09 | 日産自動車株式会社 | 非水電解質二次電池 |
KR101995373B1 (ko) | 2016-07-04 | 2019-09-24 | 주식회사 엘지화학 | 이차 전지용 음극 |
KR101966144B1 (ko) * | 2016-09-29 | 2019-04-05 | 주식회사 엘지화학 | 천연 흑연 및 인조 흑연을 포함하는 다층 음극 및 이를 포함하는 리튬 이차전지 |
PL3751641T3 (pl) * | 2018-10-02 | 2022-03-28 | Lg Chem, Ltd. | Wielowarstwowa anoda zawierająca związek na bazie krzemu i zawierająca ją litowa bateria akumulatorowa |
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2020
- 2020-04-30 EP EP20923679.3A patent/EP3926707A4/en active Pending
- 2020-04-30 JP JP2021554403A patent/JP7234403B2/ja active Active
- 2020-04-30 KR KR1020217030664A patent/KR20210134924A/ko not_active Application Discontinuation
- 2020-04-30 CN CN202080006122.5A patent/CN113875037B/zh active Active
- 2020-04-30 WO PCT/CN2020/088443 patent/WO2021217628A1/zh unknown
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2021
- 2021-10-29 US US17/513,937 patent/US11322739B2/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003346788A (ja) * | 2002-05-30 | 2003-12-05 | Yuasa Corp | 電池用負極およびそれを用いた電池 |
CN101047235A (zh) * | 2006-03-30 | 2007-10-03 | 索尼株式会社 | 负极和二次电池 |
CN102931381A (zh) * | 2011-08-12 | 2013-02-13 | 宁波杉杉新材料科技有限公司 | 一种各向同性的石墨二次颗粒及其制备方法和用途 |
CN109704324A (zh) * | 2017-10-26 | 2019-05-03 | 宁德时代新能源科技股份有限公司 | 一种电极材料及二次电池 |
CN108808068A (zh) * | 2018-05-10 | 2018-11-13 | 宁德时代新能源科技股份有限公司 | 二次电池 |
CN110346728A (zh) * | 2019-06-12 | 2019-10-18 | 中兴高能技术有限责任公司 | 监控、分析锂离子电池负极极片反弹的方法及锂离子电池 |
Also Published As
Publication number | Publication date |
---|---|
WO2021217628A1 (zh) | 2021-11-04 |
US11322739B2 (en) | 2022-05-03 |
JP7234403B2 (ja) | 2023-03-07 |
EP3926707A1 (en) | 2021-12-22 |
US20220052321A1 (en) | 2022-02-17 |
JP2022527148A (ja) | 2022-05-31 |
EP3926707A4 (en) | 2022-04-20 |
KR20210134924A (ko) | 2021-11-11 |
CN113875037B (zh) | 2023-08-04 |
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