KR102657055B1 - 황-탄소 복합체, 상기 황-탄소 복합체의 제조 방법 및 상기 황-탄소 복합체를 포함하는 리튬-황 배터리 - Google Patents
황-탄소 복합체, 상기 황-탄소 복합체의 제조 방법 및 상기 황-탄소 복합체를 포함하는 리튬-황 배터리 Download PDFInfo
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- KR102657055B1 KR102657055B1 KR1020210092622A KR20210092622A KR102657055B1 KR 102657055 B1 KR102657055 B1 KR 102657055B1 KR 1020210092622 A KR1020210092622 A KR 1020210092622A KR 20210092622 A KR20210092622 A KR 20210092622A KR 102657055 B1 KR102657055 B1 KR 102657055B1
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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
- H01M4/362—Composites
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
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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
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- H—ELECTRICITY
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- 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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
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- 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
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Abstract
Description
도 2는 MSN, MSN@C, 및 MCN의 (a) N2 흡착 등온선과 (b) BJH 기공 직경 분포, 및 황, MCN, 및 S/MCN의 (c) TGA 데이터 및 (d) XRD 패턴을 나타낸다.
도 3은 (a) 0.05C에서 용융 전극(청색) 및 혼합 전극(적색)의 제1 사이클에 대한 충전-방전 전압 프로파일 및 (b) 용융 전극 및 혼합 전극에 대한 전기화학적 활성화 공정의 제1 사이클에 대한 충전-방전 전압 프로파일을 나타낸다.
도 4는 전기화학적 활성화 공정 전후에 용융 전극(청색) 및 혼합 전극(적색)의 (a, c) 사이클 성능 및 (b, d) 속도 성능을 나타낸다.
도 5는 전극 제조 공정에 따른 마이크로포어/메조포어 내 폴리설파이드의 이동성의 변화를 보여준다.
Claims (13)
- 다공성 탄소 나노입자와 황의 혼합물에 대하여 전기화학적 활성화 공정을 수행하여 상기 황을 상기 다공성 탄소 나노입자 내에 함침시키는 단계를 포함하고,
상기 전기화학적 활성화 공정은, 상기 혼합물에 대하여 활성화 방전 및 활성화 충전을 진행하는 단계를 포함하는 것을 특징으로 하는 황-탄소 복합체의 제조 방법. - 제 1 항에 있어서,
상기 혼합물은,
다공성 탄소 나노입자를 형성하고,
상기 다공성 탄소 나노입자를 황과 혼합하는 것에 의해 형성되는 것을 특징으로 하는 황-탄소 복합체의 제조 방법. - 제 1 항에 있어서,
상기 다공성 탄소 나노입자는 메조포어를 갖는 것을 특징으로 하는 황-탄소 복합체의 제조 방법. - 제 1 항에 있어서,
상기 다공성 탄소 나노입자는 마이크로포어 및 메조포어의 계층적 기공 구조를 갖는 것을 특징으로 하는 황-탄소 복합체의 제조 방법. - 삭제
- 제 1 항에 있어서,
상기 활성화 방전이 진행되는 동안 장쇄 폴리설파이드가 형성되고,
상기 활성화 충전이 진행되는 동안 황 입자가 성장되는 것을 특징으로 하는 황-탄소 복합체의 제조 방법. - 제 1 항에 있어서,
상기 전기화학적 활성화 공정은 복수회 수행되는 것을 특징으로 하는 황-탄소 복합체의 제조 방법. - 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| KR1020210092622A KR102657055B1 (ko) | 2021-07-15 | 2021-07-15 | 황-탄소 복합체, 상기 황-탄소 복합체의 제조 방법 및 상기 황-탄소 복합체를 포함하는 리튬-황 배터리 |
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| KR1020210092622A KR102657055B1 (ko) | 2021-07-15 | 2021-07-15 | 황-탄소 복합체, 상기 황-탄소 복합체의 제조 방법 및 상기 황-탄소 복합체를 포함하는 리튬-황 배터리 |
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| Publication Number | Publication Date |
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| KR20230012167A KR20230012167A (ko) | 2023-01-26 |
| KR102657055B1 true KR102657055B1 (ko) | 2024-04-12 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110052998A1 (en) * | 2009-09-02 | 2011-03-03 | Ut-Battelle, Llc | Sulfur-carbon nanocomposites and their application as cathode materials in lithium-sulfur batteries |
| US20190386337A1 (en) | 2018-06-15 | 2019-12-19 | Nanotek Instruments, Inc. | Alkali metal-sulfur secondary battery containing cathode material particulates |
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| KR101997261B1 (ko) * | 2011-12-23 | 2019-07-08 | 현대자동차주식회사 | 유황 다공성 나노복합구조체와 다공성 나노도전재를 함유한 리튬 유황 이차전지용 양극 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110052998A1 (en) * | 2009-09-02 | 2011-03-03 | Ut-Battelle, Llc | Sulfur-carbon nanocomposites and their application as cathode materials in lithium-sulfur batteries |
| US20190386337A1 (en) | 2018-06-15 | 2019-12-19 | Nanotek Instruments, Inc. | Alkali metal-sulfur secondary battery containing cathode material particulates |
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