Kim, Jin Il Choi, Yunah Chung, Kyung Yoon Park, Jong Hyeok 2024-01-20T00:32:54Z 2024-01-20T00:32:54Z 2021-09-05 2017-09-13 1616-301X https://pubs.kist.re.kr/handle/201004/122289 In this work, a structurable gel-polymer electrolyte (SGPE) with a controllable pore structure that is not destroyed after immersion in an electrolyte is produced via a simple nonsolvent induced phase separation (NIPS) method. This study investigates how the regulation of the nonsolvent content affects the evolving nanomorphology of the composite separators and overcomes the drawbacks of conventional separators, such as glass fiber (GF), which has been widely used in sodium ion batteries (SIBs), through the regulation of pore size and gel-polymer position. The interfacial resistance is reduced through selective positioning of a poly(vinylidene fluoride-co-hexa fluoropropylene) (PVdF-HFP) gel-polymer with the aid of NIPS, which in turn enhances the compatibility between the electrolyte and electrode. In addition, the highly porous morphology of the GF/SGPE obtained via NIPS allows for the absorption of more liquid electrolyte. Thus, a greatly improved cell performance of the SIBs is observed when a tailored SGPE is incorporated into the GF separator through charge/discharge testing compared with the performance observed with pristine GF and conventional GF coated with PVdF-HFP gel-polymer. English WILEY-V C H VERLAG GMBH LITHIUM-ION PHASE INVERSION THERMAL-STABILITY LI-O-2 BATTERY SEPARATORS PERFORMANCE FUTURE INTERCALATION CHALLENGES GRAPHITE A Structurable Gel-Polymer Electrolyte for Sodium Ion Batteries Article 10.1002/adfm.201701768 1 ADVANCED FUNCTIONAL MATERIALS, v.27, no.34 ADVANCED FUNCTIONAL MATERIALS 27 34 scie scopus 000410162200007 2-s2.0-85025092670 Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article LITHIUM-ION PHASE INVERSION THERMAL-STABILITY LI-O-2 BATTERY SEPARATORS PERFORMANCE FUTURE INTERCALATION CHALLENGES GRAPHITE controlled pore structure enhanced interfacial compatibility gel electrolytes nonsolvent induced phase separation (NIPS) sodium ion batteries