Electrochemical studies on polymer electrolytes based on poly(vinylidene fluoride-co-hexafluoropropylene) membranes prepared by electrospinning and phase inversion-A comparative study

Journal Article · Mon Mar 15 00:00:00 EDT 2010 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2009.12.001· OSTI ID:22202567

Raghavan, Prasanth; Zhao, Xiaohui; Manuel, James; Shin, Chorong; Heo, Min-Yeong ^[1]; Ahn, Jou-Hyeon ^[1]; Ryu, Ho-Suk; Ahn, Hyo-Jun; Noh, Jung-Pil; Cho, Gyu-Bong ^[2]

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1. Department of Chemical and Biological Engineering and Engineering Research Institute, Gyeongsang National University, 900, Gajwa-dong, Jinju 660-701 (Korea, Republic of)
2. School of Nano and Advanced Materials Engineering and Engineering Research Institute, Gyeongsang National University, 900, Gajwa-dong, Jinju 660-701 (Korea, Republic of)

The synthesis, characterization and electrochemical properties of poly(vinylidene fluoride-co-hexafluoropropylene) {l_brace}P(VdF-co-HFP){r_brace} prepared by electrospinning and phase inversion methods are reported. The morphologies of the membranes were studied by field emission scanning electron microscope and atomic force microscope. Thermal properties of the membranes were evaluated by differential scanning calorimetry. The resultant porous membranes are good absorbents of liquid electrolytes and exhibit high electrolyte retention capacity. The polymer electrolytes were prepared by soaking the membranes in liquid electrolyte. The temperature dependent ionic conductivity and electrochemical properties were evaluated. Li/LiFePO{sub 4} cell with electrospun membrane delivers a discharge capacity of 145 mAh/g, which corresponds to 85% utilization of active material under the test conditions and shows lower capacity fade under continuous cycling.

• OSTI ID: 22202567
• Journal Information: Materials Research Bulletin, Vol. 45, Issue 3; Conference: AFM 2009: Workshop on advances in functional materials, Beijing (China), 8-12 Jun 2008, ISFM 2009: 3. international symposium on functional materials, Beijing (China), 8-12 Jun 2008; Other Information: Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
36 MATERIALS SCIENCE
ABSORBENTS
ATOMIC FORCE MICROSCOPY
ELECTROLYTES
FIELD EMISSION
FLUORINATED ALIPHATIC HYDROCARBONS
IONIC CONDUCTIVITY
MEMBRANES
POLYVINYLS
POROUS MATERIALS
SCANNING ELECTRON MICROSCOPY
SYNTHESIS
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES