KR101567203B1 - 이차 전지용 음극 활물질 및 이의 방법 - Google Patents
이차 전지용 음극 활물질 및 이의 방법 Download PDFInfo
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- KR101567203B1 KR101567203B1 KR1020140042226A KR20140042226A KR101567203B1 KR 101567203 B1 KR101567203 B1 KR 101567203B1 KR 1020140042226 A KR1020140042226 A KR 1020140042226A KR 20140042226 A KR20140042226 A KR 20140042226A KR 101567203 B1 KR101567203 B1 KR 101567203B1
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- 238000004519 manufacturing process Methods 0.000 title abstract description 9
- 239000007773 negative electrode material Substances 0.000 title abstract description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 81
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 79
- 239000010703 silicon Substances 0.000 claims abstract description 79
- 239000002131 composite material Substances 0.000 claims abstract description 48
- 239000002409 silicon-based active material Substances 0.000 claims abstract description 46
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000001301 oxygen Substances 0.000 claims abstract description 35
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 35
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 35
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 33
- 230000001590 oxidative effect Effects 0.000 claims abstract description 17
- 239000002245 particle Substances 0.000 claims description 34
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 18
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 12
- 239000011159 matrix material Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 239000002904 solvent Substances 0.000 claims description 10
- 238000007254 oxidation reaction Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- 230000003647 oxidation Effects 0.000 claims description 8
- 239000011856 silicon-based particle Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000011362 coarse particle Substances 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 3
- QOSATHPSBFQAML-UHFFFAOYSA-N hydrogen peroxide;hydrate Chemical compound O.OO QOSATHPSBFQAML-UHFFFAOYSA-N 0.000 claims description 3
- -1 oxygen ions Chemical class 0.000 claims description 3
- 238000007517 polishing process Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000012046 mixed solvent Substances 0.000 claims description 2
- 238000005498 polishing Methods 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 16
- 229910052799 carbon Inorganic materials 0.000 description 12
- 230000014759 maintenance of location Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 7
- 238000007599 discharging Methods 0.000 description 7
- 229910052744 lithium Inorganic materials 0.000 description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 6
- 239000011149 active material Substances 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 210000004027 cell Anatomy 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- 229910003481 amorphous carbon Inorganic materials 0.000 description 3
- 239000006183 anode active material Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 239000011258 core-shell material Substances 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 238000005468 ion implantation Methods 0.000 description 3
- 230000002427 irreversible effect Effects 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 239000010405 anode material Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 229920002239 polyacrylonitrile Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 2
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 2
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 239000011164 primary particle Substances 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 239000002210 silicon-based material Substances 0.000 description 2
- 229910021384 soft carbon Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920002125 Sokalan® Polymers 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000002388 carbon-based active material Substances 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000009831 deintercalation Methods 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 229910021385 hard carbon Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000011163 secondary particle Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- SKRWFPLZQAAQSU-UHFFFAOYSA-N stibanylidynetin;hydrate Chemical compound O.[Sn].[Sb] SKRWFPLZQAAQSU-UHFFFAOYSA-N 0.000 description 1
- OWOMRZKBDFBMHP-UHFFFAOYSA-N zinc antimony(3+) oxygen(2-) Chemical compound [O--].[Zn++].[Sb+3] OWOMRZKBDFBMHP-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
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- H01M4/04—Processes of manufacture in general
- H01M4/0471—Processes of manufacture in general involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis
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- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
-
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- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/134—Electrodes based on metals, Si or alloys
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Abstract
Description
도 2는 본 발명의 일 실시예에 따른 실리콘계 활물질 복합체의 제조 방법을 도시하는 순서도이다.
| O Wt % | 전지 특성 | ||
| 초기 충방전 효율 | 무게 비용량 | Retention @ 50회 | |
| 5 | 92% | 2,800 mAh/g | 40% |
| 7 | 90% | 2,700 mAh/g | 64% |
| 9 | 90% | 2,300 mAh/g | 83% |
| 10.00 | 89% | 2,200 mAh/g | 84% |
| 15.00 | 84% | 1,900 mAh/g | 97% |
| 20.00 | 81% | 1,700 mAh/g | 98% |
| 25.00 | 75% | 1,500 mAh/g | 97% |
| 30.00 | 62% | 1,100 mAh/g | 101% |
| 31 | 50% | 730 mAh/g | 99% |
| 35 | 53% | 620 mAh/g | 102% |
Claims (16)
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 실리콘의 입자를 제공하는 단계;
상기 실리콘의 입자를 산화시켜, 실리콘 및 상기 실리콘의 적어도 일부가 산화되어 형성된 실리콘 산화물을 포함하는 실리콘계 활물질 복합체를 형성하는 단계를 포함하며,
상기 실리콘 및 상기 실리콘 산화물의 총중량에 대한 산소의 함량은 9 중량% 내지 20 중량%로 제한되며,
상기 실리콘의 입자를 산화시키는 단계는 산소 포함 액상 용매 내에서 상기 실리콘의 입자를 화학적 산화시키는 것에 의해 수행되는 실리콘계 활물질 복합체의 제조 방법. - 삭제
- 제 10 항에 있어서,
상기 산소 포함 액상 용매는, 메탄올, 이소프로필알콜(IPA), 과산화수소(H2O2), 물 또는 이들 중 2 이상의 혼합 용매를 포함하는 실리콘계 활물질 복합체의 제조 방법. - 제 10 항에 있어서,
상기 실리콘의 입자를 산화시키는 단계는 상기 실리콘의 입자에 산소 이온을 주입하는 것에 의해 수행되는 실리콘계 활물질 복합체의 제조 방법. - 제 13 항에 있어서,
실리콘의 열산화를 배제하면서 실리콘 매트릭스와 주입된 산소의 결합을 위하여, 50 ℃ 내지 200 ℃ 이하의 저온에서 열처리가 추가적으로 수행되는 실리콘계 활물질 복합체의 제조 방법. - 제 10 항에 있어서,
상기 실리콘의 입자는 실리콘의 조립자를 분쇄 또는 연마 공정을 통해 세밀화된 입자를 포함하는 실리콘계 활물질 복합체의 제조 방법. - 제 15 항에 있어서,
상기 실리콘의 입자는 실리콘의 조립자를 분쇄 또는 연마 공정과 동시에 상기 공정으로부터 유도되는 압축 및 전단 응력 중 적어도 어느 하나에 의해 상기 실리콘의 입자가 화학적 산화되는 실리콘계 활물질 복합체의 제조 방법.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140042226A KR101567203B1 (ko) | 2014-04-09 | 2014-04-09 | 이차 전지용 음극 활물질 및 이의 방법 |
| CN201580018810.2A CN106165158B (zh) | 2014-04-09 | 2015-04-09 | 二次电池用负极活性物质及其制备方法 |
| EP15776353.3A EP3131141B1 (en) | 2014-04-09 | 2015-04-09 | Negative electrode active material for secondary battery and method for manufacturing same |
| JP2017505024A JP6556219B2 (ja) | 2014-04-09 | 2015-04-09 | 二次電池用負極活物質及びその方法 |
| PCT/KR2015/003575 WO2015156620A1 (ko) | 2014-04-09 | 2015-04-09 | 이차 전지용 음극 활물질 및 이의 방법 |
| CN202010169667.XA CN111261865B (zh) | 2014-04-09 | 2015-04-09 | 二次电池用负极活性物质及其制备方法 |
| US15/302,957 US10396355B2 (en) | 2014-04-09 | 2015-04-09 | Negative electrode active material for secondary battery and method for manufacturing same |
| US16/460,612 US10693134B2 (en) | 2014-04-09 | 2019-07-02 | Negative electrode active material for secondary battery and method for manufacturing same |
| JP2019126776A JP6860624B2 (ja) | 2014-04-09 | 2019-07-08 | 二次電池用負極活物質及びその方法 |
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| WO2016137024A1 (ko) | 2015-02-24 | 2016-09-01 | (주)오렌지파워 | 실리콘 음극 활물질 및 이의 제조 방법 |
| GB2536435B (en) | 2015-03-16 | 2018-02-28 | Nexeon Ltd | Electroactive materials for metal-ion batteries |
| KR101726037B1 (ko) | 2015-03-26 | 2017-04-11 | (주)오렌지파워 | 실리콘계 음극 활물질 및 이의 제조 방법 |
| TWI594487B (zh) | 2015-04-28 | 2017-08-01 | 烏明克公司 | 用於鋰離子電池組之陽極中的複合物粉末、用於製造複合物粉末的方法、及鋰離子電池組 |
| CN105742611B (zh) | 2016-05-06 | 2018-09-21 | 中国科学院宁波材料技术与工程研究所 | 一种锂离子电池负极材料、其制备方法及锂离子电池 |
| KR101773719B1 (ko) | 2016-08-23 | 2017-09-01 | (주)오렌지파워 | 2 차 전지용 실리콘계 활물질 입자 및 이의 제조 방법 |
| KR101918815B1 (ko) | 2016-08-23 | 2018-11-15 | 넥시온 엘티디. | 이차 전지용 음극 활물질 및 이의 제조 방법 |
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2014
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- 2015-04-09 US US15/302,957 patent/US10396355B2/en active Active
- 2015-04-09 CN CN201580018810.2A patent/CN106165158B/zh active Active
- 2015-04-09 EP EP15776353.3A patent/EP3131141B1/en active Active
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| KR20150117316A (ko) | 2015-10-20 |
| JP2019194993A (ja) | 2019-11-07 |
| US10396355B2 (en) | 2019-08-27 |
| CN106165158B (zh) | 2020-04-10 |
| JP6556219B2 (ja) | 2019-08-07 |
| US20190326594A1 (en) | 2019-10-24 |
| EP3131141A1 (en) | 2017-02-15 |
| WO2015156620A1 (ko) | 2015-10-15 |
| US10693134B2 (en) | 2020-06-23 |
| EP3131141B1 (en) | 2020-04-01 |
| US20170033357A1 (en) | 2017-02-02 |
| EP3131141A4 (en) | 2017-11-29 |
| CN111261865B (zh) | 2023-08-25 |
| JP2017516282A (ja) | 2017-06-15 |
| CN106165158A (zh) | 2016-11-23 |
| JP6860624B2 (ja) | 2021-04-21 |
| CN111261865A (zh) | 2020-06-09 |
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