Cross-linked fibrous composite separator for high performance lithium-ion batteries with enhanced safety
- Authors
- Park, Sae-Rom; Jung, Yun-Chae; Shin, Won-Kyung; Ahn, Kyoung Ho; Lee, Chul Haeng; Kim, Dong-Won
- Issue Date
- Apr-2017
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Fibrous composite separator; Cross-linked separator; Polyacrylonitrile membrane; Silica nanoparticle; Lithium-ion battery
- Citation
- JOURNAL OF MEMBRANE SCIENCE, v.527, pp.129 - 136
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF MEMBRANE SCIENCE
- Volume
- 527
- Start Page
- 129
- End Page
- 136
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/152583
- DOI
- 10.1016/j.memsci.2017.01.015
- ISSN
- 0376-7388
- Abstract
- A cross-linked fibrous composite separator was prepared by thermal cross-linking between reactive silica nanoparticles and tri(ethylene glycol) diacrylate on a fibrous polyacrylonitrile (PAN) membrane. The cross linked fibrous composite separator exhibited a three-dimensional and fully interconnected network structure in which the silica particles were firmly attached onto the PAN nanofibers through the chemical cross-linking. The separator showed good electrolyte wettability and excellent thermal stability at elevated temperatures. A lithium-ion cell composed of a graphite negative electrode, the cross-linked fibrous composite separator soaked with liquid electrolyte and a LiNi0.6Co0.6Mn0.2O2 positive electrode exhibited cycling performance and thermal safety superior to those of a cell prepared with a conventional polypropylene separator.
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