CN114982009A - 负极材料、负极极片、包含该负极极片的电化学装置及电子装置 - Google Patents

负极材料、负极极片、包含该负极极片的电化学装置及电子装置 Download PDF

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CN114982009A
CN114982009A CN202080092381.4A CN202080092381A CN114982009A CN 114982009 A CN114982009 A CN 114982009A CN 202080092381 A CN202080092381 A CN 202080092381A CN 114982009 A CN114982009 A CN 114982009A
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particles
silicon
negative electrode
graphite
coating
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CN114982009B (zh
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廖群超
崔航
谢远森
王超
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Ningde Amperex Technology Ltd
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Abstract

一种负极材料，该负极材料包含硅基颗粒和石墨颗粒，当所述石墨颗粒的Dn50/Dv50值为A，所述硅基颗粒的Dn50/Dv50值为B时，满足下述条件式(1)至(3)：0.1≤A≤0.65(1)，0.3≤B≤0.85(2)，并且，B>A(3)，其中，Dv50为颗粒在体积基准分布中累计体积分数达到50％时所对应的粒径；Dn50为颗粒在数量基准分布中累计数量达到50％时所对应的粒径。还提供一种负极极片，以及包含该负极极片的锂离子二次电池或电化学装置，以及包含该锂离子二次电池和/或该电化学装置的电子装置。

Description

PCT国内申请，说明书已公开。

Claims (10)

  1. PCT国内申请，权利要求书已公开。
CN202080092381.4A 2020-03-26 2020-03-26 负极材料、负极极片及包含其的电化学装置及电子装置 Active CN114982009B (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115440933A (zh) * 2022-09-27 2022-12-06 厦门海辰储能科技股份有限公司 负极极片、电池、电池包及用电设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023137708A1 (zh) * 2022-01-21 2023-07-27 宁德新能源科技有限公司 电化学装置
CN114628634B (zh) * 2022-04-11 2023-09-15 蜂巢能源科技(无锡)有限公司 一种正极片、制备方法及全固态电池

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106663807A (zh) * 2014-07-28 2017-05-10 昭和电工株式会社 锂离子二次电池用负极材料及其制造方法
CN108140834A (zh) * 2015-10-01 2018-06-08 昭和电工株式会社 锂离子二次电池的负电极制造用粒状复合材料
WO2019069668A1 (ja) * 2017-10-05 2019-04-11 昭和電工株式会社 リチウムイオン二次電池用負極材料、その製造方法、負極用ペースト、負極シート及びリチウムイオン二次電池
CN109923708A (zh) * 2016-09-09 2019-06-21 昭和电工株式会社 锂离子二次电池用负极材料
CN110890531A (zh) * 2019-11-14 2020-03-17 宁德新能源科技有限公司 负极材料及包含其的电化学装置和电子装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106663807A (zh) * 2014-07-28 2017-05-10 昭和电工株式会社 锂离子二次电池用负极材料及其制造方法
CN108140834A (zh) * 2015-10-01 2018-06-08 昭和电工株式会社 锂离子二次电池的负电极制造用粒状复合材料
CN109923708A (zh) * 2016-09-09 2019-06-21 昭和电工株式会社 锂离子二次电池用负极材料
WO2019069668A1 (ja) * 2017-10-05 2019-04-11 昭和電工株式会社 リチウムイオン二次電池用負極材料、その製造方法、負極用ペースト、負極シート及びリチウムイオン二次電池
CN110890531A (zh) * 2019-11-14 2020-03-17 宁德新能源科技有限公司 负极材料及包含其的电化学装置和电子装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115440933A (zh) * 2022-09-27 2022-12-06 厦门海辰储能科技股份有限公司 负极极片、电池、电池包及用电设备

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