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http://dx.doi.org/10.5229/JKES.2002.5.3.099

Characteristics of Lithium Secondary Batteries Using Li Salt-Organic Electrolyte as Function of Temperature  

Doh, Chil-Hoon (Battery Research Group, Korea Electrotechnology Research Institute)
Shim, Eun-Gi (Battery Research Group, Korea Electrotechnology Research Institute)
Moon, Seong-In (Battery Research Group, Korea Electrotechnology Research Institute)
Yun, Mun-Soo (Battery Research Group, Korea Electrotechnology Research Institute)
Yeom, Dale (R&D Center, Ildong Chem, Co., Ltd.,)
Roh, Jae-Ho (R&D Center, Ildong Chem, Co., Ltd.,)
Hwang, Young-Gi (Department of Chemical Engineering, Kyungnam University)
Publication Information
Journal of the Korean Electrochemical Society / v.5, no.3, 2002 , pp. 99-105 More about this Journal
Abstract
This study investigated characteristics of ICR18650 batteries with different electrolyte compositions in the range of $80^{\circ}C\~-30^{\circ}C$. ICR18650 cells using $1M\;LiPF_6,\;EC:\;DEC:\;DMC(3:5:5)\;and\; 1M\;LiPF_6,\;EC:\;DEC:\;DMC:\;EMC(3:5:4:1)$ electrolyte systems, which DMC and EMC solvent were added in $1M\;LiPF_6,\;EC:\;DEC$ electrolytes have high specific energy in the wide range of temperature. The specific energy of ICR18650 batteries using $1M\;LiPF_6,\;EC:\;DEC:\;DMC(3:5:5)\;and\; 1M\;LiPF_6,\;EC:\;DEC;\:\;DMC:\;EMC(3:5:4:1)$ electrolyte at $-30^{\circ}C\;was\;64\%\;and\;59\%$ of room temperature$(25^{\circ}C)$, respectively.
Keywords
organic electrolyte; temperature; Ragone plot; specific energy; specific power.;
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