ISSN:
1013-9826
Quelle:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Thema:
Maschinenbau
Notizen:
Preparation and performance of poly(acrylonitrile-methyl[removed info]methacrylate) based microporousgel electrolyte for Li-ion batteries were studied. The poly(acrylonitrile-methyl methacrylate (P(AMMA))was synthesized by suspension polymerization, and poly(acrylonitrile-methyl methacrylate) microporouspolymer membrane with 0.03~0.1mm was prepared by phase inversion technique. The gel electrolyte wasobtained by putting the P(AMMA) microporous polymer membrane in a liquid electrolyte, which was asolution of 1.0 M LiPF6 dissolved in a 1:1 (v/v) mixture of ethylene carbonate (EC) and diethylenecarbonate (DEC, and heated at 60°C for 2 hours. The microporous gel electrolyte gelled with 325 wt.% ofliquid electrolyte vs. the dried membrane presented an ionic conductivity of 7.52 × 10-4 S/cm at 25°C. Thecoin test battery with the microporous gel electrolyte showed a good cycling performance. The dischargecapacity retention was above 88% at 0.1C rate at the 50th cycle
Materialart:
Digitale Medien
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.533.pdf