CN114223072A - 负极活性材料及其制备方法、二次电池和包含二次电池的装置 - Google Patents

负极活性材料及其制备方法、二次电池和包含二次电池的装置 Download PDF

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CN114223072A
CN114223072A CN202080005589.8A CN202080005589A CN114223072A CN 114223072 A CN114223072 A CN 114223072A CN 202080005589 A CN202080005589 A CN 202080005589A CN 114223072 A CN114223072 A CN 114223072A
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active material
equal
less
negative electrode
electrode active
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王家政
董晓斌
何立兵
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Contemporary Amperex Technology Co Ltd
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Abstract

一种负极活性材料及其制备方法、二次电池(5)和包含二次电池(5)的装置。所述负极活性材料包括核和覆盖在所述核表面的包覆层，所述核包括人造石墨，所述包覆层包括无定形碳，所述负极活性材料的表面积平均粒径D(3,2)记为A，所述负极活性材料在20kN压力下粉压后的表面积平均粒径D(3,2)记为B，所述负极活性材料满足：72％≤B/A×100％≤82％。

Description

PCT国内申请，说明书已公开。

Claims (14)

  1. PCT国内申请，权利要求书已公开。
CN202080005589.8A 2020-04-30 2020-04-30 负极活性材料及其制备方法、二次电池和包含二次电池的装置 Pending CN114223072A (zh)

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EP (1) EP3955348B1 (zh)
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CN114050264A (zh) * 2021-11-15 2022-02-15 珠海冠宇电池股份有限公司 一种负极材料及包含该负极材料的负极片

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KR20220092566A (ko) 2022-07-01
EP3955348A1 (en) 2022-02-16
EP3955348B1 (en) 2023-04-19
JP2022554030A (ja) 2022-12-27
US20220166009A1 (en) 2022-05-26
US11569498B2 (en) 2023-01-31
EP3955348A4 (en) 2022-07-27
JP7263627B2 (ja) 2023-04-24

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