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Issue 23, 2015
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Cycling performance of lithium-ion polymer cells assembled with a cross-linked composite polymer electrolyte using a fibrous polyacrylonitrile membrane and vinyl-functionalized SiO2 nanoparticles

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Abstract

Vinyl-functionalized SiO2 nanoparticles were synthesized and uniformly dispersed on the surface of a fibrous polyacrylonitrile (PAN) membrane for use as cross-linking sites. A composite polymer electrolyte was prepared by in situ cross-linking between vinyl-functionalized SiO2 particles on the PAN membrane and the electrolyte precursor containing tri(ethylene glycol) diacrylate. The cross-linked composite polymer electrolyte effectively encapsulated the electrolyte solution without leakage. It exhibited good thermal stability as well as favorable interfacial characteristics toward electrodes. Lithium-ion polymer cells composed of a graphite negative electrode and a LiNi0.8Co0.15Al0.05O2 positive electrode were assembled with the in situ cross-linked composite polymer electrolyte. The cells with cross-linked composite polymer electrolytes using the fibrous PAN membrane and vinyl-functionalized SiO2 particles exhibited high discharge capacity and good capacity retention at both ambient temperature and elevated temperature.

Graphical abstract: Cycling performance of lithium-ion polymer cells assembled with a cross-linked composite polymer electrolyte using a fibrous polyacrylonitrile membrane and vinyl-functionalized SiO2 nanoparticles

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Article information


Submitted
24 Feb 2015
Accepted
11 Mar 2015
First published
11 Mar 2015

J. Mater. Chem. A, 2015,3, 12163-12170
Article type
Paper
Author version available

Cycling performance of lithium-ion polymer cells assembled with a cross-linked composite polymer electrolyte using a fibrous polyacrylonitrile membrane and vinyl-functionalized SiO2 nanoparticles

W. Shin, J. H. Yoo, W. Choi, K. Y. Chung, S. S. Jang and D. Kim, J. Mater. Chem. A, 2015, 3, 12163
DOI: 10.1039/C5TA01436K

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