Solid polymer electrolyte supported by porous polymer membrane for all -solid-state lithium batteries
- Authors
- Seo, Yerin; Jung, Yun-Chae; Park, Myung-Soo; Kim, Dong-Won
- Issue Date
- May-2020
- Publisher
- ELSEVIER
- Keywords
- Poly(ε-caprolactone); Polymer membrane; Solid polymer electrolyte; All-solid-state battery; Poly(ether imide)
- Citation
- JOURNAL OF MEMBRANE SCIENCE, v.603, pp.1 - 7
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF MEMBRANE SCIENCE
- Volume
- 603
- Start Page
- 1
- End Page
- 7
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/9858
- DOI
- 10.1016/j.memsci.2020.117995
- ISSN
- 0376-7388
- Abstract
- Solid polymer electrolytes composed of poly(ε-caprolactone) (PCL) and lithium bis(trifluoromethane) sulfonylimide (LiTFSI) salt were prepared for investigating their electrochemical properties. The optimized solid polymer electrolyte showed ionic conductivities of 2.5 × 10−5 and 1.6 × 10−4 S cm−1 at room temperature and 55 °C, respectively. Dimensional stability was improved by infiltrating PCL-based solid polymer electrolyte into the porous polymer membranes prepared from poly(ether imide) (PEI), polyacrylonitrile (PAN) and non-woven polypropylene (PP) membranes. Due to the highly porous nature and good compatibility of the PEI membrane toward the PCL-based solid polymer electrolyte, a solid-state Li/LiNi0.6Co0.2Mn0.2O2 cell assembled with a solid polymer electrolyte employing a PEI membrane exhibited the best cycling performance. Based on our results, this highly porous PEI membrane is proposed as a promising supporting membrane for enhancing the mechanical stability of amorphous solid polymer electrolytes for applications in all-solid-state lithium batteries.
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