CN114467198A - 负极材料及其制备方法和应用以及锂离子电池 - Google Patents

负极材料及其制备方法和应用以及锂离子电池 Download PDF

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CN114467198A
CN114467198A CN202080070420.0A CN202080070420A CN114467198A CN 114467198 A CN114467198 A CN 114467198A CN 202080070420 A CN202080070420 A CN 202080070420A CN 114467198 A CN114467198 A CN 114467198A
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silicon
lithium
negative electrode
electrode material
temperature
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CN114467198B (zh
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孙赛
张丝雨
高焕新
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China Petroleum and Chemical Corp
Sinopec Shanghai Research Institute of Petrochemical Technology
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China Petroleum and Chemical Corp
Sinopec Shanghai Research Institute of Petrochemical Technology
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Abstract

本发明涉及锂离子电池领域。公开了负极材料及其制备方法和应用以及锂离子电池。所述负极材料具有核壳结构，所述核中包括含硅物质，所述壳中包括有机锂盐和多孔碳膜，并且至少一部分锂离子插层在所述多孔碳膜之中。其制备方法包括：（1）将硅源与碳源混合，然后焙烧；（2）将步骤（1）得到的焙烧产物与有机锂盐混合；（3）将步骤（2）混合得到的物料进行真空冷冻干燥。本发明所提供的负极材料具有提高的可逆充电容量，应用于锂离子电池中可以提高锂电池的能量密度。

Description

PCT国内申请，说明书已公开。

Claims (15)

  1. PCT国内申请，权利要求书已公开。
CN202080070420.0A 2019-10-09 2020-09-29 负极材料及其制备方法和应用以及锂离子电池 Active CN114467198B (zh)

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CN2019109532336 2019-10-09
CN2019109532798 2019-10-09
CN201910953279.8A CN112652755B (zh) 2019-10-09 2019-10-09 硅碳负极材料及其制备方法和应用以及锂离子电池
CN201910953233.6A CN112635719B (zh) 2019-10-09 2019-10-09 电池负极材料及其制备方法和应用以及锂离子电池
PCT/CN2020/118720 WO2021068796A1 (zh) 2019-10-09 2020-09-29 负极材料及其制备方法和应用以及锂离子电池

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CN115806290A (zh) * 2022-12-06 2023-03-17 广东凯金新能源科技股份有限公司 人造石墨锂离子电池负极材料及其制备方法
CN117976819A (zh) * 2024-03-29 2024-05-03 宁德时代新能源科技股份有限公司 负极极片、负极极片的制备方法、电池和用电设备

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CN114200266A (zh) * 2021-12-09 2022-03-18 西安交通大学 一种基于聚3-己基噻吩的电晕放电检测材料及其制备方法
CN114373909A (zh) * 2021-12-21 2022-04-19 广东邦普循环科技有限公司 一种负极材料及其制备方法和应用
CN114784251B (zh) * 2022-05-13 2024-06-18 中国科学技术大学 一种磷包覆的负极材料及其制备方法和应用
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