KR20130000999A - 이산화규소 및 이산화규소를 함유한 광물을 이용한 리튬 이차전지용 음극활물질 및 그 제조방법 - Google Patents
이산화규소 및 이산화규소를 함유한 광물을 이용한 리튬 이차전지용 음극활물질 및 그 제조방법 Download PDFInfo
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Abstract
Description
도 2는 본 발명의 일 실시예에 따른 리튬이차전지용 음극활물질에 대한 투과전자현미경 사진이다.
도 3은 본 발명의 일 실시예에 따른 리튬이차전지용 음극활물질에 대한 충방전 싸이클에 따른 충방전 거동을 나타낸 그래프이다((a) 규소(Si)를 음극활물질로 사용한 리튬이차전지, (b) 일반 이산화규소(SiO2)를 사용한 리튬이차전지, (c) 기계적 분쇄 및 합금화 과정을 거친 음극활물질을 사용한 리튬이차전지)
도 4 는 본 발명의 일 실시예에 따른 리튬이차전지용 음극활물질이 첨가 원소를 포함하는 경우가 원소가 첨가되지 않은 경우에 비해 초기 효율의 향상 정도와 싸이클 특성을 보여주는 그래프이다.
| 전극 물질의 종류 | 충전 용량 (1st cycle; mAh g-1) |
방전 용량 (1st cycle; mAh g-1) |
초기 효율 (Coulombic efficiency) |
| 비교예 1 -규소 (Si) |
3320 | 1347 | 40.5 |
| 비교예 2-볼밀링 하지 않은 이산화규소 (SiO2) | 84 | 35 | 41.6 |
Claims (13)
- 이산화규소 또는 이산화규소를 포함하는 광물 입자를 기계적 분쇄 및 합금화 하는 단계를 포함하는 리튬이차전지용 음극활물질의 제조방법.
- 제 1항에 있어서,
상기 광물 입자를 열처리하는 전처리 단계를 더 포함하는 것인 리튬이차전지용 음극활물질의 제조방법. - 제 1항에 있어서,
상기 광물은 장석, 고령토, 철감람석 및 휘석으로 이루어지는 그룹으로부터 선택되는 하나 이상인 것인 리튬이차전지용 음극활물질의 제조방법. - 제 1항에 있어서,
상기 기계적 분쇄 및 합금화 단계는 알루미늄 (Al), 타이타늄 (Ti), 마그네슘 (Mg), 칼슘 (Ca), 리튬(Li), 지르코늄(Zr), 베릴리움(Be), 카본 (C), 바나듐(V), 크롬(Cr), 망간(Mn), 철(Fe), 코발트(Co), 니켈(Ni), 구리(Cu), 이트륨(Y), 지르코늄(Zr), 니오비움(Nb), 몰리브덴(Mo), 아연(Zn) 및 텅스텐(W)으로 구성되는 그룹으로부터 선택되는 하나 이상의 원소를 첨가하여 이산화규소 또는 이산화규소를 포함하는 광물 입자와 함께 기계적 분쇄 및 합금화하는 것인 리튬이차전지용 음극활물질의 제조방법. - 제 4항에 있어서,
상기 첨가 원소는 음극활물질 전체 중량에 대하여 0.001 내지 60중량%인 것인 리튬이차전지용 음극활물질의 제조방법. - 제 1항에 있어서,
상기 기계적 분쇄 및 합금화는 볼밀링에 의한 것인 리튬이차전지용 음극활물질의 제조방법. - 제 1항에 있어서,
상기 음극활물질 내의 규소의 평균 입자 크기는 100nm 이하인 것인 리튬이차전지용 음극활물질의 제조방법. - 이산화규소를 포함하는 리튬이차전지용 음극활물질.
- 제 8항에 있어서,
상기 이산화규소는 이산화규소를 함유하는 복합상인 것인 리튬이차전지용 음극활물질. - 제 8항에 있어서,
상기 음극활물질은 알루미늄 (Al), 타이타늄 (Ti), 마그네슘 (Mg), 칼슘 (Ca), 리튬(Li), 지르코늄(Zr), 베릴리움(Be), 카본 (C), 바나듐(V), 크롬(Cr), 망간(Mn), 철(Fe), 코발트(Co), 니켈(Ni), 구리(Cu), 이트륨(Y), 지르코늄(Zr), 니오비움(Nb), 몰리브덴(Mo), 아연(Zn) 및 텅스텐(W)으로 구성되는 그룹으로부터 선택되는 하나 이상의 첨가 원소를 더 포함하는 것인 리튬이차전지용 음극활물질. - 제 10항에 있어서,
상기 첨가 원소 및 이산화규소의 중량비는 0.001:100 내지 60:100인 것인 리튬이차전지용 음극활물질. - 제 8항에 있어서,
상기 음극활물질 내의 규소의 평균 입자 크기는 100nm 이하인 것인 리튬이차전지용 음극활물질. - 제 8항의 음극활물질을 포함하는 리튬이차전지.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110061843A KR101345625B1 (ko) | 2011-06-24 | 2011-06-24 | 이산화규소 및 이산화규소를 함유한 광물을 이용한 리튬 이차전지용 음극활물질 및 그 제조방법 |
| PCT/KR2012/004257 WO2012176994A2 (en) | 2011-06-24 | 2012-05-30 | Anode active materials using silicon dioxide and silicon dioxide-containing mineral for lithium secondary battery and method for preparing the same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110061843A KR101345625B1 (ko) | 2011-06-24 | 2011-06-24 | 이산화규소 및 이산화규소를 함유한 광물을 이용한 리튬 이차전지용 음극활물질 및 그 제조방법 |
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| Publication Number | Publication Date |
|---|---|
| KR20130000999A true KR20130000999A (ko) | 2013-01-03 |
| KR101345625B1 KR101345625B1 (ko) | 2013-12-31 |
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|---|---|---|---|
| KR1020110061843A Active KR101345625B1 (ko) | 2011-06-24 | 2011-06-24 | 이산화규소 및 이산화규소를 함유한 광물을 이용한 리튬 이차전지용 음극활물질 및 그 제조방법 |
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| KR (1) | KR101345625B1 (ko) |
| WO (1) | WO2012176994A2 (ko) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020157193A1 (de) * | 2019-01-30 | 2020-08-06 | Quarzwerke Gmbh | Maskierung von kristallinem siliciumdioxid |
| RU2810166C2 (ru) * | 2019-01-30 | 2023-12-22 | Кварцверке Гмбх | Маскировка кристаллического диоксида кремния |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112013004809T8 (de) * | 2012-09-28 | 2015-11-05 | Toyota Jidosha Kabushiki Kaisha | Negative Elektrode für eine Sekundärbatterie, Sekundärbatterie, Fahrzeug und batteriemontierte Vorrichtung |
| CN104241597A (zh) * | 2013-06-14 | 2014-12-24 | 上海绿孚新能源科技有限公司 | 二次电池及用于二次电池的电极 |
| CN110635127B (zh) * | 2019-10-31 | 2021-05-14 | 扬州工业职业技术学院 | 基于金属钼酸盐化合物纳米材料的锂离子电池电极材料 |
| US12030780B2 (en) | 2020-08-07 | 2024-07-09 | Research Triangle Institute | Nanostructured silicon carbonaceous composite material and methods for producing the same |
| CN114142016B (zh) * | 2021-11-30 | 2024-05-17 | 陕西榆能集团能源化工研究院有限公司 | 一种微米级片层状Si/SiO2复合材料、制备方法及其应用 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101375328B1 (ko) | 2007-07-27 | 2014-03-19 | 삼성에스디아이 주식회사 | Si/C 복합물, 이를 포함하는 음극활물질 및 리튬전지 |
| JP2009164104A (ja) | 2007-09-06 | 2009-07-23 | Canon Inc | 負極用電極材料、その製造方法ならびに該材料を用いた電極構造体及び蓄電デバイス |
| KR100913177B1 (ko) * | 2007-09-17 | 2009-08-19 | 삼성에스디아이 주식회사 | 리튬 이차 전지용 음극 활물질 및 이의 제조 방법 |
-
2011
- 2011-06-24 KR KR1020110061843A patent/KR101345625B1/ko active Active
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- 2012-05-30 WO PCT/KR2012/004257 patent/WO2012176994A2/en not_active Ceased
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020157193A1 (de) * | 2019-01-30 | 2020-08-06 | Quarzwerke Gmbh | Maskierung von kristallinem siliciumdioxid |
| CN113423664A (zh) * | 2019-01-30 | 2021-09-21 | 夸兹沃克公司 | 晶体二氧化硅的螯合 |
| RU2810166C2 (ru) * | 2019-01-30 | 2023-12-22 | Кварцверке Гмбх | Маскировка кристаллического диоксида кремния |
| CN113423664B (zh) * | 2019-01-30 | 2024-07-23 | 夸兹沃克公司 | 晶体二氧化硅的螯合 |
| US12325640B2 (en) | 2019-01-30 | 2025-06-10 | Quarzwerke Gmbh | Sequestering of crystalline silicon dioxide |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012176994A3 (en) | 2013-04-04 |
| WO2012176994A2 (en) | 2012-12-27 |
| KR101345625B1 (ko) | 2013-12-31 |
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