CN113692658A - 一种用于锂电池纯硅阳极的锂-硅化合物多晶型及其用途 - Google Patents

一种用于锂电池纯硅阳极的锂-硅化合物多晶型及其用途 Download PDF

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CN113692658A
CN113692658A CN201980095369.6A CN201980095369A CN113692658A CN 113692658 A CN113692658 A CN 113692658A CN 201980095369 A CN201980095369 A CN 201980095369A CN 113692658 A CN113692658 A CN 113692658A
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lithium
degrees
pure silicon
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silicon anode
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CN113692658B (zh
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陈世伟
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Abstract

一种用于锂电池纯硅阳极的锂‑硅化合物多晶型及其用于锂电池纯硅阳极的用途及制法，该纯硅阳极包含核种(102)，核种(102)具有与Li4.1Si_Cmcm、Li13Si4_Pbam、Li2Si_C12ml、LiSi_I41/AZ其中的一种或多种相同的原子级结构。其中，Li4.1Si_Cmcm原为高温稳定相，不被相信会存在于常温、存在于锂电池纯硅阳极，却被清楚证实，存在于揭露的材料内。拥有该核种的纯硅阳极，在充电(锂化反应)过后，整体结构会形成Li4.1Si_Cmcm、Li13Si4_Pbam、Li2Si_C12ml、LiSi_I41/AZ其中的一种或多种，并展现极优异的电容量，经过250圈充放电循环后，仍能保有2500mAh/g的电容量。能同时提升纯硅阳极实际使用时的电容量、并解决现有的纯硅阳极经反复充放电后体积膨胀而导致电极损坏进而使电池失效的问题。

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PCT国内申请，说明书已公开。

Claims (7)

  1. PCT国内申请，权利要求书已公开。
CN201980095369.6A 2019-04-12 2019-04-12 用于锂电池纯硅阳极的锂-硅化合物多晶型及其用途 Active CN113692658B (zh)

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Citations (7)

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Publication number Priority date Publication date Assignee Title
CN1711655A (zh) * 2002-11-05 2005-12-21 帝国学院创新有限公司 结构化硅阳极
US20130252094A1 (en) * 2010-11-29 2013-09-26 Tottori University Secondary battery negative electrode material, secondary battery negative electrode, method for manufacturing secondary battery negative electrode material, and method for manufacturing secondary battery negative electrode
CN104335395A (zh) * 2012-05-30 2015-02-04 株式会社Lg化学 锂二次电池用负极活性物质及包含该物质的锂二次电池
US20170040598A1 (en) * 2015-08-07 2017-02-09 Enevate Corporation Surface modification of silicon particles for electrochemical storage
DE102015217806A1 (de) * 2015-09-17 2017-03-23 Robert Bosch Gmbh Siliciumpartikel mit plastisch verformbarer Beschichtung
KR20180029723A (ko) * 2016-09-13 2018-03-21 한국에너지기술연구원 탄소 코팅된 (SiLiOx-LiSi) 또는 도핑된 탄소 코팅된 (SiLiOx-LiSi)의 제조 방법 및 그 구조체
CN108352496A (zh) * 2015-10-28 2018-07-31 沙特基础工业全球技术公司 用于锂离子电池电极的黏合剂组合物

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US9564629B2 (en) * 2008-01-02 2017-02-07 Nanotek Instruments, Inc. Hybrid nano-filament anode compositions for lithium ion batteries
KR101098518B1 (ko) * 2009-06-18 2011-12-26 국립대학법인 울산과학기술대학교 산학협력단 리튬 이차 전지용 음극 활물질, 이의 제조 방법 및 리튬 이차 전지

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1711655A (zh) * 2002-11-05 2005-12-21 帝国学院创新有限公司 结构化硅阳极
US20130252094A1 (en) * 2010-11-29 2013-09-26 Tottori University Secondary battery negative electrode material, secondary battery negative electrode, method for manufacturing secondary battery negative electrode material, and method for manufacturing secondary battery negative electrode
CN104335395A (zh) * 2012-05-30 2015-02-04 株式会社Lg化学 锂二次电池用负极活性物质及包含该物质的锂二次电池
US20170040598A1 (en) * 2015-08-07 2017-02-09 Enevate Corporation Surface modification of silicon particles for electrochemical storage
DE102015217806A1 (de) * 2015-09-17 2017-03-23 Robert Bosch Gmbh Siliciumpartikel mit plastisch verformbarer Beschichtung
CN108352496A (zh) * 2015-10-28 2018-07-31 沙特基础工业全球技术公司 用于锂离子电池电极的黏合剂组合物
KR20180029723A (ko) * 2016-09-13 2018-03-21 한국에너지기술연구원 탄소 코팅된 (SiLiOx-LiSi) 또는 도핑된 탄소 코팅된 (SiLiOx-LiSi)의 제조 방법 및 그 구조체

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JP2022528543A (ja) 2022-06-14
KR20210151141A (ko) 2021-12-13
WO2020206678A1 (zh) 2020-10-15
CN113692658B (zh) 2024-05-07
JP7431251B2 (ja) 2024-02-14

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