Composite gel polymer electrolyte with ceramic particles for LiNi1/3Mn1/3Co1/3O2- Li4Ti5O12lithium ion batteries > Publication | UNIST YK RESEARCH

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Composite gel polymer electrolyte with ceramic particles for LiNi1/3Mn1/3Co1/3O2- Li4Ti5O12lithium ion batteries
Author
Kyung-Won Kim, Hyun Woo Kim, Youngsik Kim, and Jae-Kwang Kim
Journal
Electorchimica Acta
Vol
236
Page
394-398
Year
2017
In this study, a composite polymer matrix for gel polymer electrolyte (GPE) is prepared by the electrospinning process, combining poly(vinylidene fluoride-co-hexafluoropropylene) and nano-sized Al2O3 ceramic particles. The composite matrix is impregnated with a liquid electrolyte to prepare the GPE-Al2O3 composite and its properties are compared with those of pure GPE. The GPE-Al2O3 composite improves the interfacial resistance, ion coordination and the electrochemical stability of the GPE. The electrochemical performances are analyzed by applying the GPEs to LiNi1/3Mn1/3Co1/3O2 (NMC) and Li4Ti5O12(LTO) cells. The GPE-Al2O3 composite exhibits a higher discharge capacity than the GPE at 0.1 C-rate and excellent performance in both the LTO and the NMC half-cells under cyclic conditions. The GPE-Al2O3 composite shows good compatibility and high electrochemical property on LTO/NMC full-cell.