WO2019013525A3 - 리튬 이차 전지용 음극 활물질, 이의 제조 방법 및 이를 포함하는 리튬 이차 전지 - Google Patents

리튬 이차 전지용 음극 활물질, 이의 제조 방법 및 이를 포함하는 리튬 이차 전지 Download PDF

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WO2019013525A3
WO2019013525A3 PCT/KR2018/007808 KR2018007808W WO2019013525A3 WO 2019013525 A3 WO2019013525 A3 WO 2019013525A3 KR 2018007808 W KR2018007808 W KR 2018007808W WO 2019013525 A3 WO2019013525 A3 WO 2019013525A3
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secondary battery
lithium secondary
negative electrode
active material
electrode active
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PCT/KR2018/007808
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French (fr)
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WO2019013525A2 (ko
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박상은
곽지연
김연갑
김영욱
도의송
오윤택
유용찬
정창의
차인오
최희선
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삼성에스디아이 주식회사
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Priority to CN201880057115.0A priority Critical patent/CN111066180B/zh
Priority to US16/630,175 priority patent/US11515520B2/en
Publication of WO2019013525A2 publication Critical patent/WO2019013525A2/ko
Publication of WO2019013525A3 publication Critical patent/WO2019013525A3/ko

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Abstract

리튬 이차 전지용 음극 활물질, 이의 제조 방법 및 이를 포함하는 리튬 이차 전지에 관한 것으로서, 상기 음극 활물질은 결정질 탄소 및 실리콘 입자를 포함하는 코어 및 상기 코어 표면에 위치하는 비정질 탄소 함유 코팅층을 포함하는 실리콘-탄소 복합체를 포함하는 리튬 이차 전지용 음극 활물질로서, 상기 실리콘 입자의 표면에 형성된 실리콘 산화물을 포함하고, 상기 결정질 탄소의 표면에 형성된 결정질 탄소의 산화물을 포함하고, 상기 실리콘 입자의 평균 직경(D50)은 나노미터 크기이며, 상기 실리콘 산화물에서 Si에 대한 O의 비율은 30% 내지 50%이고, 상기 결정질 탄소의 산화물에서 C에 대한 O의 비율은 4% 내지 10%이다.
PCT/KR2018/007808 2017-07-12 2018-07-10 리튬 이차 전지용 음극 활물질, 이의 제조 방법 및 이를 포함하는 리튬 이차 전지 WO2019013525A2 (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201880057115.0A CN111066180B (zh) 2017-07-12 2018-07-10 用于锂二次电池的负极活性物质、其制备方法以及包括其的锂二次电池
US16/630,175 US11515520B2 (en) 2017-07-12 2018-07-10 Negative electrode active material for lithium secondary battery, preparation method therefor, and lithium secondary battery comprising same

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Application Number Priority Date Filing Date Title
KR1020170088433A KR102487626B1 (ko) 2017-07-12 2017-07-12 리튬 이차 전지용 음극 활물질, 이의 제조 방법 및 이를 포함하는 리튬 이차 전지
KR10-2017-0088433 2017-07-12

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WO2019013525A2 WO2019013525A2 (ko) 2019-01-17
WO2019013525A3 true WO2019013525A3 (ko) 2019-04-11

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KR (1) KR102487626B1 (ko)
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US10879530B2 (en) * 2018-12-13 2020-12-29 National Chung-Shan Institute Of Science And Technology Anode material of nano-silicon having multilayer-graphene as carrier and coated with silicon suboxide and with amorphous carbon layer and method for fabricating the same
CN114975980A (zh) * 2019-03-19 2022-08-30 宁德新能源科技有限公司 负极材料及使用其的电化学装置和电子装置
KR102156529B1 (ko) * 2020-07-24 2020-09-17 유성운 음극 활물질의 제조방법 및 상기 음극 활물질을 포함하는 이차전지.
CN113594430B (zh) * 2021-06-24 2022-09-13 安普瑞斯（南京）有限公司 硅基负极材料及其制备方法和应用
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