High-Performance Lithium-Ion Polymer Cells Assembled with Composite Polymer Electrolytes based on Core-Shell Structured SiO2 Particles Containing Poly(lithium acrylate) in the Shell

Core-shell structured SiO2 nanoparticles containing poly(lithium acrylate) in the shell were synthesized and used as functional fillers in composite polymer electrolytes for lithium-ion polymer cells. The composite polymer electrolytes prepared with SiO2(Li+) particles exhibited high ionic conductiv...

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Bibliographic Details
Published in:Journal of the Electrochemical Society 2015-01, Vol.162 (2), p.A3071-A3076
Main Authors: Park, Se-Mi, Lee, Yoon-Sung, Kim, Dong-Won
Format: Article
Language:English
Online Access:Get full text
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Summary:Core-shell structured SiO2 nanoparticles containing poly(lithium acrylate) in the shell were synthesized and used as functional fillers in composite polymer electrolytes for lithium-ion polymer cells. The composite polymer electrolytes prepared with SiO2(Li+) particles exhibited high ionic conductivity, good thermal stability, and favorable interfacial characteristics. By using these composite polymer electrolytes, lithium-ion polymer cells composed of a graphite negative electrode and a LiNi0.6Co0.2Mn0.2O2 positive electrode were assembled, and their cycling performance was evaluated. The cells assembled with composite polymer electrolytes containing a proper amount of SiO2(Li+) particles exhibited good cycling performance at both at ambient and elevated temperatures.
ISSN:0013-4651
DOI:10.1149/2.0081502jes