A lotus root-like porous nanocomposite polymer electrolyte |
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| Institution: | 1. Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China;2. College of Chemistry, Xiangtan University, Hunan 411105, China;3. State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China |
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| Abstract: | A lotus root-like porous nanocomposite polymer electrolyte (NCPE) based on poly(vinylidene difluoride-co-hexafluoropropylene) P(VDF-HFP)] copolymer and TiO2 nanoparticles was easily prepared by a non-solvent induced phase separation (NIPS) process. The formation mechanism of the lotus root-like porous structure is explained by a qualitative ternary phase diagram. The resulting NCPE had a high ionic conductivity up to 1.21 × 10?3 S cm?1 at room temperature, and exhibited a high electrochemical stability potential of 5.52 V (vs. Li/Li+), lithium ion transference number of 0.65 and 22.89 kJ mol?1 for the apparent activation energy for transportation of ions. It is of great potential application in polymer lithium ion batteries. |
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