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Citation: FENG Hua-Jun, CHEN Yuan, DAI Ke-Hua, SONG Zhao-Shuang, MA Jian-Wei, QI Lu. Preparation and Characterization of a Novel Kind of Polymer Electrolyte Composite Membrane for Lithium-Ion Battery[J]. Acta Physico-Chimica Sinica, ;2007, 23(12): 1922-1926. doi: 10.3866/PKU.WHXB20071217 shu

Preparation and Characterization of a Novel Kind of Polymer Electrolyte Composite Membrane for Lithium-Ion Battery

1.
New Energy Materials and Technology Laboratory, Department of Applied Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China; CITIC Guoan Mengguli New Energy Technology Co., Ltd., Beijing 102200, P. R. China

Received Date: 17 September 2007
Available Online: 24 October 2007

A novel kind of PVDF-HFP(polyvinylidene fluoride-hexafluoropro-pylene)-based polymer electrolyte composite membrane for lithium-ion battery was prepared. Inorganic TiO2 nanopowders in composite were dealt with solid super-acidization. Series of characterizations were carried on, such as surface acid strength H0, XRD analysis, electrolyte absorbency, and electrochemical impedance spectroscopy. PE non-woven fabrics were introduced as the reinforced materials, which were soaked to prepare the composite membranes, and then assembled to get the resulted lithium-ion battery. Performance tests indicated that the lithium-ion battery had od electrochemical performance.
- PVDF-HFP; Polymer electrolyte composite membranes; Solid superacid; Non-woven fabrics; Lithium-ion battery
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