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http://dx.doi.org/10.4313/JKEM.2005.18.1.068

Optimization Study on Polymerization of Crosslink-type Gel Polymer Electrolyte for Lithium-ion Polymer Battery  

Kim, Hyun-Soo (한국전기연구원 전지연구그룹)
Moon, Seong-In (한국전기연구원 전지연구그룹)
Kim, Sang-Pil ((주)나래나노텍 기술연구소)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.18, no.1, 2005 , pp. 68-74 More about this Journal
Abstract
In this work, polymerization conditions of the gel polymer electrolyte (GPE) were studied to obtain better electrochemical performances in a lithium-ion polymer battery. When the polymerization temperature and time of the GPE were 70$^{\circ}C$ and 70 min, respectively, the lithium polymer battery showed excellent a rate capability and cycleability. The TMPETA (trimethylolpropane ethoxylate triacrylate)/TEGDMA (triethylene glycol dimethacrylate)-based cells prepared under optimized polymerization conditions showed excellent rate capability and low-temperature performances: The discharge capacity of cells at 2 Crate showed 92.1 % against 0.2C rate. The cell at -20 $^{\circ}C$ also delivered 82.4 % of the discharge capacity at room temperature.
Keywords
Monomer; Trimethylolpropane ethoxylate triacrylate; Triethylene glycol triacrylate; Lithium ion polymer battery; Gel polymer electrolyte; lonic conductivity;
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