A porous polymer electrolyte based on P(VDF-HFP) prepared by a simple phase separation process

2008 ◽  
Vol 10 (12) ◽  
pp. 1883-1885 ◽  
Author(s):  
G.C. Li ◽  
P. Zhang ◽  
H.P. Zhang ◽  
L.C. Yang ◽  
Y.P. Wu
Keyword(s):  
Phase Separation ◽  
Polymer Electrolyte ◽  
Separation Process ◽  
Porous Polymer ◽  
Phase Separation Process ◽  
Simple Phase

scholarly journals A facile non-solvent induced phase separation process for preparation of highly porous polybenzimidazole separator for lithium metal battery application

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Jiaying Wang ◽  
Yang He ◽  
Quan Wu ◽  
Yunfeng Zhang ◽  
Zhiyuan Li ◽  
...  
Keyword(s):  
Phase Separation ◽  
Polymer Electrolyte ◽  
Density Functional ◽  
Ethylene Carbonate ◽  
Rate Capability ◽  
Separation Process ◽  
Coagulation Bath ◽  
Electrolyte Uptake ◽  
Phase Separation Process ◽  
Highly Porous

AbstractThe drawbacks of low porosity, inferior electrolyte wettability, low thermal dimensional stability and permissive lithium dendrite growth of the conventional microporous polyolefin-based separators hinder their widely application in the high power density and safe Lithium ion batteries. Herein, highly porous polybenzimidazole-based separator is prepared by a facile non-solvent induced phase separation process (NIPS) using water, ethanol, chloroform and ethyl acetate as the coagulation bath solvent, respectively. It was found that the ethanol is suitable to fabricate uniform morphology macroporous separator with the porosity of 92%, electrolyte uptake of 594 wt.%, and strong mechanical strength of 15.9 MPa. In addition, the experimental tests (electrochemical analysis and XPS test) and density functional theory calculation suggest that the electron-rich imidazole ring of polybenzimidazle can enhance Li+ mobility electrostatic attraction interaction while the block the PF6− mobility via electrostatic repulsion interaction. Therefore, high Li+ transference number of 0.76 was obtained for the neat polybenzimidazole-based polymer electrolyte. As a proof of concept, the Li/LiFePO4 cell with the polybenzimidazole-based polymer electrolyte/1.0 M LiPF6− ethylene carbonate/dimethyl carbonate (v:v = 1:1) electrolyte exhibits excellent rate capability of >100 mAh g−1 at 6 C (1 C = 170 mA g−1) and superior cycle stability of 1000 cycles.

scholarly journals A polyethersulfone–bisphenol sulfuric acid hollow fiber ultrafiltration membrane fabricated by a reverse thermally induced phase separation process

RSC Advances ◽  
2018 ◽  
Vol 8 (14) ◽  
pp. 7800-7809 ◽  
Author(s):  
Sheng-Hui Liu ◽  
Min Liu ◽  
Zhen-Liang Xu ◽  
Yong-Ming Wei
Keyword(s):  
Phase Separation ◽  
Sulfuric Acid ◽  
Hollow Fiber ◽  
Hollow Fiber Membrane ◽  
Ultrafiltration Membrane ◽  
Separation Process ◽  
Thermally Induced Phase Separation ◽  
Fiber Membrane ◽  
Thermally Induced ◽  
Phase Separation Process

A novel antifouling polyethersulfone (PES) hollow fiber membrane was modified by the addition of bisphenol sulfuric acid (BPA-PS) using a reverse thermally induced phase separation (RTIPS) process.

The effect of separation of blocks on the crystallization kinetics and phase composition of poly(butylene adipate) in multi-block thermoplastic polyurethanes

2022 ◽  
Author(s):  
Marina A. Gorbunova ◽  
Evgenii V. Komov ◽  
Leonid Yu. Grunin ◽  
Mariya S. Ivanova ◽  
Ainur F. Abukaev ◽  
...  
Keyword(s):  
Phase Composition ◽  
Phase Separation ◽  
Crystallization Kinetics ◽  
Separation Process ◽  
Degree Of Crystallinity ◽  
Thermoplastic Polyurethanes ◽  
Phase Separation Process ◽  
Hard Segments ◽  
Final Degree

Control of the phase separation process of soft and hard segments by selecting diisocyanates and by varying the thermal program allows defining the final degree of crystallinity and phase composition of TPUs.

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