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CN115917780A - 负极极片及其制备方法、二次电池、电池模块、电池包和装置 - Google Patents

负极极片及其制备方法、二次电池、电池模块、电池包和装置 Download PDF

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CN115917780A
CN115917780A CN202080102408.3A CN202080102408A CN115917780A CN 115917780 A CN115917780 A CN 115917780A CN 202080102408 A CN202080102408 A CN 202080102408A CN 115917780 A CN115917780 A CN 115917780A
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active material
battery
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CN115917780B (zh
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吕子建
王家政
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Contemporary Amperex Technology Co Ltd
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Abstract

本申请提供一种负极极片，包括集流体以及依次设置在集流体至少一个表面上的第一活性物质层和第二活性物质层；第一活性物质层包括第一负极活性物质，并且第一负极活性物质的粒径满足如式(I)所示的关系式：0.02≤A1＝(Dn10)1/(Dv50)1≤0.2，式(I)；第二活性物质层包括第二负极活性物质，并且第二负极活性物质的粒径满足如式(II)所示的关系式：0.02≤A2＝(Dn10)2/(Dv50)2≤0.3，式(II)；并且，在式(I)和式(II)中，A1和A2满足1<A2/A1<2.5。本申请同时提供一种负极极片的制备方法，由本申请负极极片制备的二次电池兼具高能量密度和快充性能。

Description

PCT国内申请，说明书已公开。

Claims (22)

  1. PCT国内申请，权利要求书已公开。
CN202080102408.3A 2020-12-28 2020-12-28 负极极片及其制备方法、二次电池、电池模块、电池包和装置 Active CN115917780B (zh)

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WO2024212298A1 (zh) * 2023-04-10 2024-10-17 湖北亿纬动力有限公司 一种改性负极极片及其制备方法和应用
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JP2024141388A (ja) * 2023-03-29 2024-10-10 株式会社Ａｅｓｃジャパン 非水電解質二次電池用負極およびそれを用いた非水電解質二次電池
CN117174829B (zh) * 2023-11-03 2024-01-19 溧阳中科海钠科技有限责任公司 一种钠离子电池负极及其制备方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024212298A1 (zh) * 2023-04-10 2024-10-17 湖北亿纬动力有限公司 一种改性负极极片及其制备方法和应用
WO2025002381A1 (zh) * 2023-06-30 2025-01-02 远景动力技术(河北)有限公司 负极极片、电化学装置及负极极片的制备方法

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EP4075542A1 (en) 2022-10-19
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