KR20180042712A - 리튬 전지 및 리튬 전지의 전극 제조방법 - Google Patents
리튬 전지 및 리튬 전지의 전극 제조방법 Download PDFInfo
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- KR20180042712A KR20180042712A KR1020160135215A KR20160135215A KR20180042712A KR 20180042712 A KR20180042712 A KR 20180042712A KR 1020160135215 A KR1020160135215 A KR 1020160135215A KR 20160135215 A KR20160135215 A KR 20160135215A KR 20180042712 A KR20180042712 A KR 20180042712A
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 80
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 78
- 239000010703 silicon Substances 0.000 claims abstract description 78
- 239000000758 substrate Substances 0.000 claims abstract description 38
- 238000000151 deposition Methods 0.000 claims abstract description 9
- 238000000347 anisotropic wet etching Methods 0.000 claims abstract description 4
- 238000009792 diffusion process Methods 0.000 claims description 15
- 238000005240 physical vapour deposition Methods 0.000 claims description 7
- 210000000988 bone and bone Anatomy 0.000 claims description 3
- 230000003449 preventive effect Effects 0.000 claims 2
- 239000010408 film Substances 0.000 description 17
- 238000000349 field-emission scanning electron micrograph Methods 0.000 description 14
- 230000008859 change Effects 0.000 description 13
- 238000007599 discharging Methods 0.000 description 11
- 238000005530 etching Methods 0.000 description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 10
- 229910052802 copper Inorganic materials 0.000 description 10
- 239000010949 copper Substances 0.000 description 10
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 9
- 229910001416 lithium ion Inorganic materials 0.000 description 9
- 230000004888 barrier function Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 229920002120 photoresistant polymer Polymers 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 230000014759 maintenance of location Effects 0.000 description 5
- 229910052814 silicon oxide Inorganic materials 0.000 description 5
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 5
- 235000012431 wafers Nutrition 0.000 description 5
- 239000011149 active material Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 description 4
- 238000001459 lithography Methods 0.000 description 4
- -1 sulfuric acid peroxide Chemical class 0.000 description 4
- 229910052715 tantalum Inorganic materials 0.000 description 4
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 3
- 239000002409 silicon-based active material Substances 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 238000001039 wet etching Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000007850 degeneration Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 230000002427 irreversible effect Effects 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 2
- 229910013870 LiPF 6 Inorganic materials 0.000 description 1
- 229910017855 NH 4 F Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000002070 nanowire Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009279 wet oxidation reaction Methods 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1395—Processes of manufacture of electrodes based on metals, Si or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0421—Methods of deposition of the material involving vapour deposition
- H01M4/0423—Physical vapour deposition
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y02E60/122—
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Y02P70/54—
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- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
Description
도 2는 본 발명의 일 실시예에 따라 피라미드 패턴이 형성된 기판의 모식도이다.
도 3 내지 7은 N-0, S-85, S-170, P-50, P-100 각각의 기판 표면과 단면(inset)의 FE-SEM 이미지, 그리고 각 기판에 탄탈나이트라이드/탄탈/탄탈나이트라이드, 구리, 실리콘 층 증착된 단면의 FE-SEM 이미지를 나타낸 도면이다.
도 8은 N-0, S-85, S-170, P-50 및 P-100의 형성단계에서의 전압 프로파일(0.1C)을 나타낸 그래프이다.
도 9는 50 사이클 동안 충방전 용량과 N-0, S-85, S-170, P-50, P-100의 쿨롱 효율(0.5C)을 나타낸 그래프이다.
도 10 내지 14는 20 사이클 뒤 N-0, S-85, S-170, P-50, P-100 전극 각각의 표면 FE-SEM 이미지와 확대된 표면 이미지를 나타낸 도면이다.
도 15는 N-0, S-85, S-170, P-50, P-100 전극의 속도 특성을 나타낸 그래프이다.
Claims (5)
- 실리콘 기판 상에 비등방성 습식 식각으로 피라미드 패턴 또는 삼각 프리즘 패턴을 형성하는 제1 단계; 및
상기 패턴 형성 기판 상에 집전체 층 및 실리콘 층을 순차로 증착하는 제2 단계;
를 포함하는 리튬 전지용 전극 제조방법. - 제 1 항에 있어서,
상기 제1 단계는,
상기 삼각 프리즘 패턴은 V-형 홈이 반복 배열된 형태로, 인접한 두 골 사이의 간격이 150 ~ 190㎛인 것을 특징으로 하는 리튬 전지용 전극 제조방법. - 제 1 항에 있어서,
상기 제1 단계는,
상기 피라미드 패턴은 오목한 사각뿔 형태가 반복 배열된 형태로 상기 사각뿔 바닥 한 변의 길이가 80 ~ 120㎛인 것을 특징으로 하는 리튬 전지용 전극 제조방법. - 제 1 항에 있어서,
상기 제2 단계는,
상기 집전체 층을 증착하기 이전에 확산방지 층을 증착하여, 상기 확산방지 층, 집전체 층 및 실리콘 층이 물리기상증착법에 의해 순차로 증착되는 것을 특징으로 하는 리튬 전지용 전극 제조방법. - 제 1 항 내지 제 4 항 중 어느 한 항에 따른 리튬 전지용 전극 제조방법에 의해 제조된 리튬 전지용 전극을 포함하는 리튬 전지.
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003017040A (ja) * | 2001-06-28 | 2003-01-17 | Sanyo Electric Co Ltd | リチウム二次電池用電極の製造方法及びリチウム二次電池用電極 |
KR20090061269A (ko) * | 2007-12-11 | 2009-06-16 | 지에스나노텍 주식회사 | 전극의 표면적 및 전극과 전해질의 접촉면적을 증가시킨박막형 전지 및 그의 제조방법 |
KR20120002434A (ko) * | 2010-06-30 | 2012-01-05 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 축전 장치의 제작 방법 |
US20150280271A1 (en) * | 2014-03-28 | 2015-10-01 | Infineon Technologies Ag | Method for Forming a Battery Element, a Battery Element and a Battery |
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- 2016-10-18 KR KR1020160135215A patent/KR101882396B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003017040A (ja) * | 2001-06-28 | 2003-01-17 | Sanyo Electric Co Ltd | リチウム二次電池用電極の製造方法及びリチウム二次電池用電極 |
KR20090061269A (ko) * | 2007-12-11 | 2009-06-16 | 지에스나노텍 주식회사 | 전극의 표면적 및 전극과 전해질의 접촉면적을 증가시킨박막형 전지 및 그의 제조방법 |
KR20120002434A (ko) * | 2010-06-30 | 2012-01-05 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 축전 장치의 제작 방법 |
US20150280271A1 (en) * | 2014-03-28 | 2015-10-01 | Infineon Technologies Ag | Method for Forming a Battery Element, a Battery Element and a Battery |
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