| 학회 |
한국공업화학회 |
| 학술대회 |
2015년 봄 (04/29 ~ 05/01, BEXCO (부산)) |
| 권호 |
19권 1호 |
| 발표분야 |
고분자_포스터 |
| 제목 |
Improvement of lithium-ion battery performance at low temperature by adopting polydimethylsiloxane-based electrolyte additives |
| 초록 |
Three kinds of polydimethylsiloxane (PDMS)-based grafted and ungrafted copolymers such as poly[dimethylsiloxane-co-(siloxane-g-acrylate)] (PDMS-A), poly(dimethylsiloxane-co-phenylsiloxane) (PDMS-P), and poly[dimethylsiloxane-co-(siloxane-g-ethylene oxide)] (PDMS-EO) are used as additives to standard liquid electrolyte solutions to enhance the lithium-ion battery performance at low temperatures. Liquid electrolyte solutions with PDMS-based additives are electrochemically stable under 5.0 V and have adequate ionic conductivities of 10−4 S cm−1 at -20 °C. Particularly, liquid electrolytes with PDMS-P and PDMS-EO exhibit higher ionic conductivities of around 5 × 10−4 S cm−1 at -20 °C, indicating a specific resisting property against the freezing of the liquid electrolyte components. As a result, the addition of PDMS-based additives to liquid electrolytes improves the capacity retention ratio and rate-capability of lithium-ion batteries at low temperatures. |
| 저자 |
LOUISHAMENU1, 이해수1, LATIFATU MOHAMMED1, Hu Mengyang1, Alfred Madzamuse1, Kwang Man Kim2, Jang Myoun Ko2
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| 소속 |
1Hanbat National Univ., 2Electronics and Telecommunications Research Institute |
| 키워드 |
polydimethylsiloxane; lithium-ion battery; low temperature
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| E-Mail |
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