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Improvement of High Voltage Cycling Performances of Li[Ni1/3Co1/3Mn1/3]O-2 at 55 degrees C by a (NH4)(3)AlF6 Coating
- Sun, Yang-Kook;
- Myung, Seung-Taek;
- Yoon, Chong Seung;
- Kim, Dong-Won
Citations
WEB OF SCIENCE
37Citations
SCOPUS
39초록
The surface of Li[Ni1/3Co1/3Mn1/3]O-2 particles was modified by a simple dry coating with (NH4)(3)AlF6 as a coating agent. The (NH4)(3)AlF6-coated Li[Ni1/3Co1/3Mn1/3]O-2 showed enhanced lithium-ion intercalation stability and thermal stability at 55 degrees C and a high cutoff voltage of 4.5 V. Electrochemical impedance spectroscopy and transmission electron microscopy showed that the (NH4)(3)AlF6 coating on the Li[Ni1/3Co1/3Mn1/3]O-2 particles played a key role in stabilizing the interface between the cathode and the electrolyte.
키워드
coatings; electrochemical electrodes; electrochemical impedance spectroscopy; electrolytes; lithium compounds; nitrogen compounds; secondary cells; thermal stability; transmission electron microscopy; ELECTROCHEMICAL PROPERTIES; POSITIVE ELECTRODE; CATHODE MATERIALS; ION; INTERCALATION; BATTERIES; GRAPHITE; BEHAVIOR; PITT
- 제목
- Improvement of High Voltage Cycling Performances of Li[Ni1/3Co1/3Mn1/3]O-2 at 55 degrees C by a (NH4)(3)AlF6 Coating
- 저자
- Sun, Yang-Kook; Myung, Seung-Taek; Yoon, Chong Seung; Kim, Dong-Won
- 발행일
- 2009-05
- 유형
- Article
- 권
- 12
- 호
- 8
- 페이지
- A163 ~ A166
- 언어
- ENG
- 출판사
- ELECTROCHEMICAL SOC INC
- 발행국가
- 미국
- ISSN
- E 1944-8775
P 1099-0062