KR101899701B1 - 나노 실리콘 재료와 그 제조 방법 및 이차 전지의 부극 - Google Patents
나노 실리콘 재료와 그 제조 방법 및 이차 전지의 부극 Download PDFInfo
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Abstract
Description
도 2 는 실시예 1 에 관련된 나노 실리콘 재료의 XRD 차트이다.
도 3 은 실시예 1 에 관련된 나노 실리콘 재료의 라만 스펙트럼이다.
도 4 는 실시예 1 에 관련된 나노 실리콘 재료의 SEM 화상을 나타낸다.
도 5 는 실시예 1 에 관련된 나노 실리콘 재료의 TEM 화상을 나타낸다.
도 6 은 실시예 1 에 관련된 나노 실리콘 재료의 규소 (Si) 의 분포를 나타내는 TEM-EDX 화상이다.
도 7 은 실시예 1 에 관련된 나노 실리콘 재료의 산소 (O) 의 분포를 나타내는 TEM-EDX 화상이다.
도 8 은 실시예 1 에 관련된 나노 실리콘 재료의 불소 (F) 의 분포를 나타내는 TEM-EDX 화상이다.
도 9 는 실시예 2 에 관련된 나노 실리콘 재료의 XRD 차트이다.
도 10 은 실시예 2 에 관련된 나노 실리콘 재료의 TEM 화상을 나타낸다.
도 11 은 실시예 2 에 관련된 나노 실리콘 재료의 규소 (Si) 의 분포를 나타내는 TEM-EDX 화상이다.
도 12 는 실시예 2 에 관련된 나노 실리콘 재료의 산소 (O) 의 분포를 나타내는 TEM-EDX 화상이다.
도 13 은 실시예 2 에 관련된 나노 실리콘 재료의 불소 (F) 의 분포를 나타내는 TEM-EDX 화상이다.
도 14 는 실시예 2 에 관련된 나노 실리콘 재료의 염소 (Cl) 의 분포를 나타내는 TEM-EDX 화상이다.
도 15 는 비교예 2 에 관련된 나노 실리콘 재료의 규소 (Si) 의 분포를 나타내는 TEM-EDX 화상이다.
도 16 은 비교예 2 에 관련된 나노 실리콘 재료의 산소 (O) 의 분포를 나타내는 TEM-EDX 화상이다.
도 17 은 비교예 2 에 관련된 나노 실리콘 재료의 염소 (Cl) 의 분포를 나타내는 TEM-EDX 화상이다.
도 18 은 비교예 1 에 관련된 나노 실리콘 재료의 XRD 차트이다.
도 19 는 비교예 2 에 관련된 나노 실리콘 재료의 XRD 차트이다.
Claims (17)
- 불소와 나노 사이즈의 실리콘 결정자를 함유하고,
원소 조성이 원자비로 SiOxClyFz(0 < (x + y + z) ≤ 1, x < 0.5) 의 관계에 있고,
상기 실리콘 결정자는, X 선 회절 측정 결과의 (111) 면의 회절 피크의 반치폭으로부터 셰러의 식으로 산출되는 결정자 사이즈가 0.5 ㎚ ∼ 300 ㎚ 이고,
상기 불소는 0.01 ∼ 10 질량% 함유되어 있는 것을 특징으로 하는 나노 실리콘 재료. - 제 1 항에 있어서,
라만 스펙트럼에 있어서 라만 시프트의 520 ㎝-1 보다 낮은 파수측에 피크를 갖고, 그 피크의 반치폭이 30 ∼ 100 ㎝-1 의 범위에 있는, 나노 실리콘 재료. - 제 1 항에 있어서,
비정질 실리콘, 산화규소 (SiOx, 0 < x < 2), 또는 규소 화합물의 적어도 1 종을 추가로 함유하는 복합체 입자로 이루어지는, 나노 실리콘 재료. - 제 3 항에 있어서,
상기 실리콘 결정자는, 비정질 실리콘, 산화규소 (SiOx, 0 < x < 2), 또는 규소 화합물의 적어도 1 종의 내부 또는 표면에 존재하는, 나노 실리콘 재료. - 제 1 항에 있어서,
복수 장의 판상체가 두께 방향으로 적층되어 이루어지고, 그 판상체는 두께가 1 ㎚ ∼ 200 ㎚ 인, 나노 실리콘 재료. - 제 5 항에 있어서,
상기 판상체끼리가 화학적 또는 물리적으로 결합된 결합부를 갖고, 상기 판상체와 그 결합부로 둘러싸인 중공부를 갖는, 나노 실리콘 재료. - 제 1 항에 있어서,
상기 불소는 상기 나노 실리콘 재료의 전체에 분산되어 존재하고 있는, 나노 실리콘 재료. - 삭제
- 제 1 항에 있어서,
BET 비표면적이 3 ㎡/g 이상인, 나노 실리콘 재료. - 제 1 항에 있어서,
함유되는 산소 (O) 량이 20 질량% 이하인, 나노 실리콘 재료. - 제 1 항에 기재된 나노 실리콘 재료를 제조하는 방법으로서, 적어도 아니온에 불소를 함유하는 산이 0.01 질량% 이상 함유된 약액과 CaSi2 를 반응시켜 얻어진 층상 실리콘 화합물을 비산화성 분위기에서 350 ℃ 이상에서 열처리하는 것을 특징으로 하는 나노 실리콘 재료의 제조 방법.
- 제 11 항에 있어서,
상기 층상 실리콘 화합물은, 라만 스펙트럼에 있어서 라만 시프트의 330 ± 20 ㎝-1, 360 ± 20 ㎝-1, 498 ± 20 ㎝-1, 638 ± 20 ㎝-1, 734 ± 20 ㎝-1 에 피크가 존재하는, 나노 실리콘 재료의 제조 방법. - 제 1 항에 기재된 나노 실리콘 재료를 포함하는 것을 특징으로 하는 부극 활물질.
- 제 13 항에 기재된 부극 활물질을 포함하는 것을 특징으로 하는 부극.
- 제 14 항에 기재된 부극을 갖는 것을 특징으로 하는 이차 전지.
- 삭제
- 삭제
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PCT/JP2015/002642 WO2015182116A1 (ja) | 2014-05-29 | 2015-05-26 | ナノシリコン材料とその製造方法及び二次電池の負極 |
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KR102533884B1 (ko) * | 2016-04-29 | 2023-05-18 | 한국재료연구원 | 리튬 이차전지용 음극 물질, 그 제조방법 및 이를 포함하는 리튬 이차전지용 음극 |
JP7498964B2 (ja) | 2018-05-25 | 2024-06-13 | アメリカン ナノ, エルエルシー | シリカ繊維を組み込んだ電池 |
CN109950542A (zh) * | 2019-04-03 | 2019-06-28 | 西安交通大学 | 一类含硅氧烷基团的接枝共聚物粘合剂及其应用以及基于其的二次电池 |
CN109994735A (zh) * | 2019-04-03 | 2019-07-09 | 西安交通大学 | 一类含硅氧烷基团的聚合物粘合剂及其应用以及基于其的二次电池 |
WO2021164846A1 (de) * | 2020-02-17 | 2021-08-26 | Wacker Chemie Ag | Anodenaktivmaterialien für lithium-ionen-batterien |
CN112786893B (zh) * | 2021-02-26 | 2022-04-22 | 宁波容百新能源科技股份有限公司 | 一种纳米氟化锆锂原位包覆高镍三元正极材料、其制备方法及锂离子电池 |
JP7191410B1 (ja) * | 2021-09-21 | 2022-12-19 | 株式会社ファイマテック | ナノシリコンの製造方法 |
CN114084890B (zh) * | 2021-11-16 | 2023-12-12 | 中山大学 | 一种晶体硅材料及其制备方法和应用 |
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- 2015-05-26 JP JP2016523144A patent/JP6288257B2/ja active Active
- 2015-05-26 KR KR1020167031288A patent/KR101899701B1/ko not_active Expired - Fee Related
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JPWO2015182116A1 (ja) | 2017-05-25 |
WO2015182116A1 (ja) | 2015-12-03 |
DE112015002524T5 (de) | 2017-02-23 |
KR20160145661A (ko) | 2016-12-20 |
US10347910B2 (en) | 2019-07-09 |
CN106414326B (zh) | 2019-08-09 |
US20170200948A1 (en) | 2017-07-13 |
JP6288257B2 (ja) | 2018-03-07 |
CN106414326A (zh) | 2017-02-15 |
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