NDLI: Composite polymer electrolytes reinforced by non-woven fabrics

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Composite polymer electrolytes reinforced by non-woven fabrics

Content Provider	Semantic Scholar
Author	Songa, Min-Kyu Kima, Young-Taek Chob, Jin-Yeon Choc, Byung Won Popovd, Branko N. Rheea, Hee-Woo
Copyright Year	2003
Abstract	Composite electrolytes composed of a blend of polyethylene glycol diacrylate (PEGDA), poly(vinylidene fluoride) (PVDF) and poly(methyl methacrylate) (PMMA) together with a non-woven fabric have been prepared by means of ultra-violet cross-linking. As the non-woven fabric serves as a mechanical support medium, the composite electrolyte has good integrity up to an initial liquid electrolyte uptake of 1000% (ethylene carbonate (EC)–dimethyl carbonate (DMC)–ethylmethyl carbonate (EMC)–LiPF 6). The ionic conductivity of the composite electrolytes reaches 4.5 mS cm −1 at an ambient temperature of around 18 ◦C and are electrochemically stable up to about 4.8 V versus Li/Li +. The conductivity and interfacial resistance remain almost constant even at 80 ◦C. Scanning electron micrographs show that the high-temperature behavior is associated with structural stability that is induced by chain entanglement between PVdF, PMMA and PEGDA network. A MCMB\|LiCoO2 cell using the composite electrolytes retains >97% of its initial discharge capacity after 100 cycles at theC/2 rate (150 mA), and delivers more than 80% of full capacity with an average load voltage of 3.6 V at the 2 C rat . The cell also shows much better cycle-life than one with a PVdF-coated composite electrolyte at high temperatures because of the better liquid electrolyte retention capability. © 2003 Elsevier B.V. All rights reserved.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.che.sc.edu/faculty/popov/drbnp/WebSite/Publications_PDFs/Web29.pdf
Language	English
Access Restriction	Open
Subject Keyword	Calcium Carbonate 750 MG Chewable Tablet Carbonates Composite video Discharger Eighty Electrolytes Electron Ethylenes Fever Greater Than Ionic Ions Lithium Methacrylates One Thousand Polyethylene Glycols Polyethylene terephthalate Polyhydroxyethyl Methacrylate Polymer Polymethyl Methacrylate Quantum entanglement RGD Solvents Synergy Textiles Tissue membrane Viola ethylene carbonate lithium cation polyvinylidene fluoride voltage
Content Type	Text
Resource Type	Article

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