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Properties of N-butyl-N-methyl-pyrrolidinium bis(trifluoromethanesulfonyl) imide based electrolytes as a function of lithium bis(trifluoromethanesulfonyl) imide doping
Properties of N-butyl-N-methyl-pyrrolidinium bis(trifluoromethanesulfonyl) imide based electrolytes as a function of lithium bis(trifluoromethanesulfonyl) imide doping
- 김재광;
- 임두현;
- Johan Scheers;
- Jagath Pitawala;
- Susanne Wilken;
- 외 4명
초록
In this study we have investigated the Li-ion coordination, thermal behavior and electrochemical stability of N-butyl-N-methyl-pyrrolidinium bis(trifluoromethanesulfonyl)imide (Py_14TFSI) with lithium bis(trifluoromethanesulfony)imide (LiTFSI) doping intended for use as electrolytes for lithium batteries. The ionic conductivity is reduced and glass transition temperature (T_g) increases with LiTFSI doping concentration. Also, the electrochemical stability increases with LiTFSI doping. A high LiTFSI doping could enhance the electrochemical stability of electrolytes for lithium batteries, whereas the decrease in the ionic conductivity limits the capacity of the battery.
키워드
Ionic liquid electrolyte; LiTFSI doping; Li-ion coordination; Electrochemical stability
- 제목
- Properties of N-butyl-N-methyl-pyrrolidinium bis(trifluoromethanesulfonyl) imide based electrolytes as a function of lithium bis(trifluoromethanesulfonyl) imide doping
- 제목 (타언어)
- Properties of N-butyl-N-methyl-pyrrolidinium bis(trifluoromethanesulfonyl) imide based electrolytes as a function of lithium bis(trifluoromethanesulfonyl) imide doping
- 저자
- 김재광; 임두현; Johan Scheers; Jagath Pitawala; Susanne Wilken; Patrik Johansson; 안주현; Aleksandar Matic; Per Jacobsson
- 발행일
- 2011
- 저널명
- 전기화학회지
- 권
- 14
- 호
- 2
- 페이지
- 92 ~ 97