KR101646397B1 - 리튬공기전지용 양극의 제조방법 - Google Patents
리튬공기전지용 양극의 제조방법 Download PDFInfo
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- KR101646397B1 KR101646397B1 KR1020140172515A KR20140172515A KR101646397B1 KR 101646397 B1 KR101646397 B1 KR 101646397B1 KR 1020140172515 A KR1020140172515 A KR 1020140172515A KR 20140172515 A KR20140172515 A KR 20140172515A KR 101646397 B1 KR101646397 B1 KR 101646397B1
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- 238000004519 manufacturing process Methods 0.000 title abstract description 20
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 60
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 59
- 239000004917 carbon fiber Substances 0.000 claims abstract description 59
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 46
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000000463 material Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 43
- 239000000758 substrate Substances 0.000 claims description 22
- 238000011068 loading method Methods 0.000 claims description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 239000011230 binding agent Substances 0.000 claims description 8
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- 239000012299 nitrogen atmosphere Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 13
- 239000003575 carbonaceous material Substances 0.000 description 42
- 229920005594 polymer fiber Polymers 0.000 description 18
- 230000000052 comparative effect Effects 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 7
- 229910001416 lithium ion Inorganic materials 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- ZUHZGEOKBKGPSW-UHFFFAOYSA-N tetraglyme Chemical compound COCCOCCOCCOCCOC ZUHZGEOKBKGPSW-UHFFFAOYSA-N 0.000 description 6
- 238000000576 coating method Methods 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 229910018071 Li 2 O 2 Inorganic materials 0.000 description 3
- 239000002033 PVDF binder Substances 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 238000000635 electron micrograph Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229910003473 lithium bis(trifluoromethanesulfonyl)imide Inorganic materials 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000007600 charging Methods 0.000 description 1
- 238000010281 constant-current constant-voltage charging Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007607 die coating method Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000003411 electrode reaction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 238000007756 gravure coating Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 229910003002 lithium salt 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
- 238000002156 mixing Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000009718 spray deposition Methods 0.000 description 1
- 238000010792 warming 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
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/08—Hybrid cells; Manufacture thereof composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type
-
- 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
- H01M4/0471—Processes of manufacture in general involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis
-
- 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
- H01M4/133—Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
-
- 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
- H01M4/1393—Processes of manufacture of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
-
- 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
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/96—Carbon-based electrodes
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Inert Electrodes (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
도 2는 탄소재와 기재가 분리되어 기재의 표면이 드러나는 것을 찍은 전자현미경사진이다.
도 3은 비교예 1에 의해 제조된 탄소 파이버의 표면을 5000배 확대한 전자현미경 사진이다.
도 4는 실시예에 의해 제조된 탄소 파이버의 표면을 5000배 확대한 전자현미경 사진이다.
| 구분 | 탄소 로딩량(mg/cm2) |
| 실시예(열처리된 탄소파이버) | 3.1 |
| 비교예1(열처리되지 않은 탄소파이버) | 1.9 |
| 비교예2(열처리되지 않은 니켈메쉬) | 2.0 |
| 구분 | 양극의 기재 | 방전용량(mAh/cm2) |
| 실시예 | 열처리된 탄소파이버 | 11.7 |
| 비교예1 | 열처리되지 않은 탄소파이버 | 4.7 |
| 비교예2 | 열처리되지 않은 니켈메쉬 | 4.2 |
Claims (15)
- 폴리아크릴로니트릴 섬유를 무산소 환경에서 탄화시켜 탄소 파이버를 준비하는 제1단계;
상기 탄소 파이버를 500 내지 1500℃에서 열처리하여 비표면적이 증가된 기재를 준비하는 제2단계; 및
상기 기재에 케첸블랙을 로딩하는 제3단계를 포함하는 리튬공기전지용 양극의 제조방법.
- 제 1 항에 있어서,
상기 폴리아크릴로니트릴 섬유는 노(furnace)에서 질소 분위기 또는 진공 분위기로 탄화되는 리튬공기전지용 양극의 제조방법.
- 삭제
- 삭제
- 제 1 항에 있어서,
상기 탄소 파이버는 주울열을 이용하는 방법, 전자기파를 이용하는 방법, 화염을 이용하는 방법 또는 플라스마를 이용하는 방법 중 어느 하나의 방법으로 열처리되는 리튬공기전지용 양극의 제조방법.
- 제 1 항에 있어서,
상기 탄소 파이버는 이송 수단을 통해 연속적으로 공급되며 열처리되는 리튬공기전지용 양극의 제조방법.
- 제 1 항에 있어서,
상기 케첸블랙은 바인더와 8 : 2 ~ 5 : 5의 중량 비율로 혼합되어 상기 기재에 로딩되는 리튬공기전지용 양극의 제조방법.
- 폴리아크릴로니트릴 섬유를 산소 환경에서 900 내지 1200℃로 열처리하여 비표면적이 증가된 기재를 준비하는 제1단계; 및
상기 기재에 케첸블랙을 로딩하는 제2단계를 포함하는 리튬공기전지용 양극의 제조방법.
- 삭제
- 제 8 항에 있어서,
상기 폴리아크릴로니트릴 섬유는 화염을 이용하는 방법 또는 플라스마를 이용하는 방법 중 어느 하나의 방법으로 열처리되는 리튬공기전지용 양극의 제조방법.
- 삭제
- 제 8 항에 있어서,
상기 폴리아크릴로니트릴 섬유는 이송 수단을 통해 연속적으로 공급되며 열처리되는 리튬공기전지용 양극의 제조방법.
- 제 8 항에 있어서,
상기 케첸블랙은 바인더와 8 : 2 ~ 5 : 5의 중량 비율로 혼합되어 상기 기재에 로딩되는 리튬공기전지용 양극의 제조방법.
- 제 1 항, 제 2 항, 제 5 항 내지 제 8 항, 제 10 항, 제 12 항 및 제 13 항 중 어느 한 항의 제조방법으로 제조된 리튬공기전지용 양극.
- 제 14 항의 양극을 포함하는 리튬공기전지.
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020140172515A KR101646397B1 (ko) | 2014-12-03 | 2014-12-03 | 리튬공기전지용 양극의 제조방법 |
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|---|---|---|---|
| KR1020140172515A KR101646397B1 (ko) | 2014-12-03 | 2014-12-03 | 리튬공기전지용 양극의 제조방법 |
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| Publication Number | Publication Date |
|---|---|
| KR20160066993A KR20160066993A (ko) | 2016-06-13 |
| KR101646397B1 true KR101646397B1 (ko) | 2016-08-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200119007A (ko) | 2019-04-09 | 2020-10-19 | 현대자동차주식회사 | 리튬공기전지용 캐소드 전극 및 그 제조방법 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102452946B1 (ko) | 2017-07-26 | 2022-10-11 | 삼성전자주식회사 | 금속 공기 전지용 기체 확산층, 이를 포함하는 금속 공기 전지 및 그 제조방법 |
| KR102302056B1 (ko) * | 2020-02-13 | 2021-09-15 | 한국과학기술연구원 | 리튬공기전지용 공기극, 이의 제조방법 및 이를 포함하는 리튬공기전지 |
| KR102249853B1 (ko) * | 2020-02-13 | 2021-05-10 | 한국과학기술연구원 | 리튬공기전지용 공기극, 이의 제조방법 및 이를 포함하는 리튬공기전지 |
| WO2022191340A1 (ko) * | 2021-03-08 | 2022-09-15 | 한국과학기술연구원 | 리튬공기전지용 공기극, 이의 제조방법 및 이를 포함하는 리튬공기전지 |
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| KR101284610B1 (ko) * | 2012-04-09 | 2013-07-17 | 한국과학기술원 | 타원형 기공을 갖는 나노섬유, 그 제조방법 및 이를 포함하는 물품 |
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| KR101508128B1 (ko) | 2013-04-22 | 2015-04-08 | 한국에너지기술연구원 | 리튬-공기 전지용 양극, 그의 제조방법 및 그를 포함하는 리튬-공기 전지 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101284610B1 (ko) * | 2012-04-09 | 2013-07-17 | 한국과학기술원 | 타원형 기공을 갖는 나노섬유, 그 제조방법 및 이를 포함하는 물품 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20200119007A (ko) | 2019-04-09 | 2020-10-19 | 현대자동차주식회사 | 리튬공기전지용 캐소드 전극 및 그 제조방법 |
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