KR101417268B1 - 리튬금속배터리용 리튬전극 및 그 제조방법 - Google Patents
리튬금속배터리용 리튬전극 및 그 제조방법 Download PDFInfo
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- KR101417268B1 KR101417268B1 KR1020120046330A KR20120046330A KR101417268B1 KR 101417268 B1 KR101417268 B1 KR 101417268B1 KR 1020120046330 A KR1020120046330 A KR 1020120046330A KR 20120046330 A KR20120046330 A KR 20120046330A KR 101417268 B1 KR101417268 B1 KR 101417268B1
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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 95
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 title abstract description 7
- 239000010416 ion conductor Substances 0.000 claims abstract description 52
- 239000007787 solid Substances 0.000 claims abstract description 42
- 229910000733 Li alloy Inorganic materials 0.000 claims abstract description 15
- 239000001989 lithium alloy Substances 0.000 claims abstract description 15
- 238000011049 filling Methods 0.000 claims abstract description 11
- 239000011148 porous material Substances 0.000 claims description 42
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 230000008018 melting Effects 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 8
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 229910001416 lithium ion Inorganic materials 0.000 claims description 7
- 239000010409 thin film Substances 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 6
- 238000009501 film coating Methods 0.000 claims description 6
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- GEIAQOFPUVMAGM-UHFFFAOYSA-N ZrO Inorganic materials [Zr]=O GEIAQOFPUVMAGM-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 5
- 229910052738 indium Inorganic materials 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 4
- 238000010406 interfacial reaction Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000001556 precipitation Methods 0.000 claims description 4
- 238000001308 synthesis method Methods 0.000 claims description 4
- 229910018119 Li 3 PO 4 Inorganic materials 0.000 claims description 3
- 229910007860 Li3.25Ge0.25P0.75S4 Inorganic materials 0.000 claims description 3
- 229910012305 LiPON Inorganic materials 0.000 claims description 3
- -1 LiPOS Inorganic materials 0.000 claims description 3
- 229910012428 LiSON Inorganic materials 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 claims description 3
- 239000004964 aerogel Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 239000002223 garnet Substances 0.000 claims description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- 238000010345 tape casting Methods 0.000 claims description 3
- 238000007740 vapor deposition Methods 0.000 claims description 2
- 239000011244 liquid electrolyte Substances 0.000 abstract description 6
- 230000009257 reactivity Effects 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 12
- 150000002500 ions Chemical class 0.000 description 9
- 239000011230 binding agent Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 239000007784 solid electrolyte Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 229910021193 La 2 O 3 Inorganic materials 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910003473 lithium bis(trifluoromethanesulfonyl)imide Inorganic materials 0.000 description 1
- QSZMZKBZAYQGRS-UHFFFAOYSA-N lithium;bis(trifluoromethylsulfonyl)azanide Chemical compound [Li+].FC(F)(F)S(=O)(=O)[N-]S(=O)(=O)C(F)(F)F QSZMZKBZAYQGRS-UHFFFAOYSA-N 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
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- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0561—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of inorganic materials only
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Abstract
즉, 본 발명은 기존 액체전해질 대신 고체 고이온전도체를 사용하는 리튬금속배터리의 리튬전극에 이온전도 경로를 확보하기 위한 3차원 다공성 구조의 고체 고이온전도체 구조물을 적용하여, 각 기공내에 리튬금속 또는 리튬합금이 충진되며 분산되도록 함으로써, 리튬전극 내 이온전도 경로를 확보하고 충방전시 전기화학 반응성을 좋게 하여 사이클 수명과 고율특성을 향상시킬 수 있는 리튬금속배터리용 리튬전극 및 그 제조방법을 제공하고자 한 것이다.
Description
Claims (8)
- 3차원 다공 구조물로 제작되는 고체 고이온전도체;
상기 다공을 이루는 각 열린 기공내에 충진되는 리튬금속 또는 리튬합금;
각 기공내에 리튬금속 또는 리튬합금이 충진된 고체 고이온전도체의 일면쪽에 결합되는 집전체;
로 구성되고,
상기 고체 고이온전도체와 리튬금속간 계면반응을 향상시키기 위해 계면에 Al, In 금속 및 Al2O3, ZrO2, 세라믹 중에서 선택된 어느 하나의 반응활성화 물질이 코팅된 것을 특징으로 하는 리튬금속배터리용 리튬전극.
- 삭제
- 고체 고이온전도체를 3차원 다공 구조물로 제작하는 단계와;
상기 고체 고이온전도체의 다공을 이루는 각 열린 기공내에 리튬금속 또는 리튬합금을 충진시키는 단계와;
각 기공내에 리튬금속 또는 리튬합금이 충진된 고체 고이온전도체의 일면쪽에 집전체를 결합시키는 단계;
를 포함하고,
상기 고체 고이온전도체와 리튬금속간 계면반응을 향상시키기 위해 계면에 Al, In 금속 및 Al2O3, ZrO2, 세라믹 중에서 선택된 어느 하나의 반응활성화 물질을 코팅하는 단계를 더 포함하는 것을 특징으로 하는 리튬금속배터리용 리튬전극 제조방법.
는 것을 특징으로 하는 리튬금속배터리용 리튬전극 제조방법.
- 청구항 3에 있어서,
상기 고체 고이온전도체의 기공 크기는 0.01~50㎛의 크기 범위로 형성되고, 기공율은 30~90% 범위 내로 정해지도록 한 것을 특징으로 하는 리튬금속배터리용 리튬전극 제조방법.
- 청구항 3에 있어서,
상기 고체 고이온전도체는:
LiSICON(γ-Li3PO4 derivative), Thio-LiSICON(Li3.25Ge0.25P0.75S4 derivative), NaSiCON(NaZr2P3O12 derivative), Perovskite(La2/3Li1/3TiO3 derivative), Garnet(Li5La3M2O12, M=Ta,Nb derivative), LiPON, LiPOS, LiSON, LiSIPON 중 선택된 어느 하나로 제작된 것임을 특징으로 하는 리튬금속배터리용 리튬전극 제조방법.
- 청구항 3에 있어서,
상기 고체 고이온전도체는 콜로이드 결정 주형법(Colloidal crystal template), 카본 주형법(Carbon template), 동결 주조법(Freeze casting), 에어로겔(Aerogel) 합성법, 테입 주조법(Tape casting) 중 선택된 어느 하나의 방법을 통하여 3차원 다공성 구조로 제작되는 것을 특징으로 하는 리튬금속배터리용 리튬전극 제조방법.
- 청구항 3에 있어서,
상기 고체 고이온전도체의 각 기공 내에 리튬금속 또는 리튬합금을 충진하는 방법은 리튬을 용융하여 가압 또는 감압식으로 충진하는 용융법, CVD 또는 PVD 등 금속 증착을 적용하는 박막 코팅법, 리튬 분말을 페이스트 형태로 충진하는 분말 입자 페이스트 충진법, 리튬 이온 액체를 삽입 후 금속으로 석출하는 석출법 중 선택된 어느 하나의 방법이 사용되는 것을 특징으로 하는 리튬금속배터리용 리튬전극 제조방법.
- 삭제
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020120046330A KR101417268B1 (ko) | 2012-05-02 | 2012-05-02 | 리튬금속배터리용 리튬전극 및 그 제조방법 |
| US13/561,464 US9190658B2 (en) | 2012-05-02 | 2012-07-30 | Lithium electrode for lithium metal battery and method of manufacturing the lithium electrode |
| CN201210295422.7A CN103384000B (zh) | 2012-05-02 | 2012-08-17 | 锂金属电池用的锂电极及其制造方法 |
| US14/932,656 US20160056501A1 (en) | 2012-05-02 | 2015-11-04 | Lithium electrode for lithium metal battery and method of manufacturing the lithium electrode |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020120046330A KR101417268B1 (ko) | 2012-05-02 | 2012-05-02 | 리튬금속배터리용 리튬전극 및 그 제조방법 |
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| Publication Number | Publication Date |
|---|---|
| KR20130123142A KR20130123142A (ko) | 2013-11-12 |
| KR101417268B1 true KR101417268B1 (ko) | 2014-07-08 |
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| Country | Link |
|---|---|
| US (2) | US9190658B2 (ko) |
| KR (1) | KR101417268B1 (ko) |
| CN (1) | CN103384000B (ko) |
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| US10700378B2 (en) | 2015-12-17 | 2020-06-30 | The Regents Of The University Of Michigan | Slurry formulation for the formation of layers for solid state batteries |
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- 2012-08-17 CN CN201210295422.7A patent/CN103384000B/zh active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20180106951A (ko) | 2017-03-16 | 2018-10-01 | 주식회사 엘지화학 | 전극 및 이를 포함하는 리튬 이차전지 |
| US11380888B2 (en) | 2017-03-16 | 2022-07-05 | Lg Energy Solution, Ltd. | Electrode and lithium secondary battery comprising same |
| US10858749B2 (en) | 2017-04-14 | 2020-12-08 | Lg Chem, Ltd. | Electroplating solution for lithium metal, and method for manufacturing lithium metal electrode by using same |
| KR20220063965A (ko) | 2020-11-11 | 2022-05-18 | 현대자동차주식회사 | 강유전체를 포함하는 이차전지용 양극 및 이의 제조방법 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20130123142A (ko) | 2013-11-12 |
| US9190658B2 (en) | 2015-11-17 |
| US20130295452A1 (en) | 2013-11-07 |
| CN103384000A (zh) | 2013-11-06 |
| CN103384000B (zh) | 2017-11-21 |
| US20160056501A1 (en) | 2016-02-25 |
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