Jae-Deok Jeon Byung-Won Cho and Seung-Yeop Kwak.Solvent-free polymer electrolytes based on thermally annealed porous P(VdF-HFP)/P(EO-EC) membranes. Journal of Power Sources . 2005Jeona J-D, Chob B-W, Kwak S-Y (2005) Solvent-free polymer electrolytes based on thermally annealed porous ...
1. In detail, when the water was injected into the homogeneous DMF solution of PVDF-HFP, the solvent (DMF) would be exchanged by the nonsolvent (water) and the PVDF-HFP chains would be linked, resulting in the porous structure of PVDF-HFP film. The corresponding SEM image of PVDF-HFP ...
Then, in this solvent-free and scalable fashion, it is possible to prepare electrolytes like those prepared by solvent casting, but in few minutes instead of several hours or days, without solvent evaporation steps, and with ionic conductivities, which are very similar for the same compositions,...
Highly porous membranes consisting of poly(vinylidene fluoride- co -hexafluoropropylene) [P(VdF-HFP)] and poly(ethylene oxide- co -ethylene carbonate) [P(EO-EC)] were prepared by a phase inversion method using acetone as a solvent and ethylene glycol as a nonsolvent. The presence of viscous...
A solvent casting was used for preparing polymer electrolytes, and slurry consisting of polymer, plasticizer, solvent, and salt was used by two different methods of magnetic-stirring and ball-milling techniques. The former has employed a ball-to-material ratio of 400 : 1 in a hardened steel ...
Y. Kwak, “Effects of addition of TiO2 nanoparticles on mechanical properties and ionic conductivity of solvent-free polymer electrolytes based on porous P(VdF-co-HFP)/P(EO-EC) membranes,” Journal of Power Sources, vol. 162, no. 2, pp. 1304–1311, 2006. [30] S. Rajendran, O. ...
Kesieme U, Chrysanthou A, Catulli M, Cheng CY (2018) A review of acid recovery from acidic mining waste solutions using solvent extraction. J Chem Technol Biotechnol 93:3374–3385 Article CAS Google Scholar Samara F, Attia N, Khamis M, Ali MH, Alam I (2020) Is acid treatment of sec...
PVDF-HFP solution was prepared by the addition of 2 g PVDF-HFP pellets to a 1:1 mixture of DMF and acetone (15 ml solvent) and stirred for 3 h at 70 °C. The undoped ZnO (1 wt.%) and Co-doped ZnO (0.5, 1 and 2 wt.%) nanopowders were dispersed in the same solvent...
However, PEI cannot be easily spun because its good solvent (N-methyl pyrrolidone (NMP)) cannot be easily volatilized, resulting in poor fiber morphology [5]. Coaxial electrospinning can control this deficiency to a certain extent. In this work, a core–shell PEI@PVDF-HFP nanofiber separator...
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