| 학회 |
한국공업화학회 |
| 학술대회 |
2015년 가을 (11/04 ~ 11/06, 제주국제컨벤션센터(ICCJEJU)) |
| 권호 |
19권 2호 |
| 발표분야 |
고분자_포스터 |
| 제목 |
Lithium-Silica Nanosalt as a Low-Temperature Electrolyte Additive for Lithium-ion Batteries |
| 초록 |
A lithium-modified silica nanosalt (Li-SiO2,coded Li202) of hydro phobic fumed silica(R202)is synthesized to use as an electrolyte additive for lithium-ion batteries(LIBs) under low temperature conditions. The synthesis method consists of reacting the silica nano particles with LiH and consequently quickly reacting the conjugate silicate ions with1,3-propane sultone as a surface stabilizer. The obtained Li202 nanosalt is added in to an electrolyte solution of 1.0M LiPF6 dissolved in standard electrolyte. The electrolyte solution including the Li202 nanosalt shows higher ionic conductivity and superior electrochemical stability over 5 V, which is due to the stabilized surface group. The electrochemical properties of the LiCoO2/graphite cell using the electrolyte solution with and without the obtained Li202 additive are investigated at both room temperature and -20oC. |
| 저자 |
고장면1, 박종욱2, 김광만3, LATIFATU MOHAMMED1, 이해수1, LOUIS HAMENU1, 이경익1
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| 소속 |
1한밭대, 2Catholic Univ., 3Electronics and Telecommunications Research Institute |
| 키워드 |
battery; Lowtemperature; electrolyte
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| E-Mail |
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