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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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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Priority claimed from CN201910953279.8A external-priority patent/CN112652755B/zh
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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 Pending CN114467198A (zh)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
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
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
CN2019109532798 2019-10-09
CN2019109532336 2019-10-09
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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CN113816384B (zh) * 2021-08-30 2023-07-18 上海纳米技术及应用国家工程研究中心有限公司 一种掺磷多孔碳包覆氧化亚硅材料的制备方法及其产品
KR20240055744A (ko) * 2021-09-08 2024-04-29 코퍼스 델라웨어 인코포레이티드 흑연 재료를 코팅하기 위한 콜타르 피치의 분산액 및 Li-이온 배터리 전극 생산에서의 용도
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
CN114784251A (zh) * 2022-05-13 2022-07-22 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
CN117293312B (zh) * 2023-11-24 2024-03-12 深圳市贝特瑞新能源技术研究院有限公司 一种硬碳材料及其制备方法和应用、钠离子电池

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CN110137485A (zh) * 2019-06-26 2019-08-16 珠海冠宇电池有限公司 一种含有表面修饰膜的硅负极材料的制备方法
CN112652755A (zh) * 2019-10-09 2021-04-13 中国石油化工股份有限公司 硅碳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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