Blending of hard and soft organic-inorganic hybrids for use as an effective electrolyte membrane in lithium-ion batteries

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/101799

Title:	Blending of hard and soft organic-inorganic hybrids for use as an effective electrolyte membrane in lithium-ion batteries
Authors:	史艾佳;Saikia, Diganta;Ho, Sze-Yuan;Chang, Yu-Ju;Fang, Jason;Tsai, Li-Duan;Kao, Hsien-Ming
Contributors:	理學院化學學系
Keywords:	artificial membranes;Blending;Blends;carbon;cathodes;electrochemistry;Electrolytes;Ethers;Fourier transform infrared spectroscopy;Ionic conductivity;Linear sweep voltammetry;lithium batteries;Lithium-ion batteries;Membranes;mixing;nuclear magnetic resonance spectroscopy;Organic–inorganic hybrid electrolyte;polyethylene glycol;Polymer blends;Rechargeable batteries;silicon;stable isotopes
Date:	2016-04-01
Issue Date:	2026-04-21 14:45:18 (UTC+8)
Publisher:	Elsevier;Elsevier B.V
Abstract:	摘要： In this study, two unique organic–inorganic hybrids are synthesized and optimized to obtain a new type of hybrid blend membrane. A soft hybrid is obtained from reaction of polyetheramine (M-2070) and (3-glycidyloxypropyl)trimethoxysilane (GLYMO), whereas a hard hybrid is prepared from reactions of polyetherdiamine (ED2003), poly(ethylene glycol) diglycidyl ether (PEGDGE) and GLYMO. Both hybrids are finally blended with poly(vinylidene fluoride-co-hexafluoropropylene) (P(VdF-HFP)) to get the hybrid blend membrane and plasticized with 1M LiPF6 in EC/DEC. The successful synthesis of the hybrid blend membrane structure is established from 13C and 29Si solid-state NMR spectroscopy. FTIR results reveal the interactions of different groups of the hybrid blend membrane. The hybrid blend electrolyte possesses maximum ionic conductivity value of 6.9mScm−1 at 30°C and is electrochemically stable up to 5V. The electrochemical performance of the hybrid blend electrolyte assemble in a battery cell with the LiFePO4 cathode exhibits a good cycle life of over 200 cycles with an initial discharge capacity of 150mAhg−1. In addition, coulombic efficiency of 97–99% is maintained for the whole cycles. Our results demonstrate that the present hybrid blend electrolyte can be a potential candidate serving as an effective electrolyte in lithium-ion batteries. [Display omitted] •A new blend electrolyte is prepared by blending of two organic–inorganic hybrids.•The blend electrolyte exhibits a maximum ionic conductivity value of 6.9mScm−1.•The blend electrolyte is electrochemically stable up to 5V.•The test cell exhibits an initial discharge capacity of 150mAhg−1 at 0.2C.•The test cell shows good cycling performance of over 200 cycles. 出版者： Elsevier B.V 出版日期： 2016-04-01 出處： Journal of membrane science, 2016-04, Vol.503, p.59-68 版權： 2015 Elsevier B.V. 識別號： ISSN: 0376-7388 識別號： EISSN: 1873-3123 識別號： DOI: 10.1016/j.memsci.2015.12.024
Appears in Collections:	[Department of Chemistry] journal & Dissertation

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