In-depth correlation of separator pore structure and electrochemical performance in lithium-ion batteries
- Title
- In-depth correlation of separator pore structure and electrochemical performance in lithium-ion batteries
- Author
- 조국영
- Keywords
- Separator; Thickness and porosity; Gurley number; Ionic conductance; Lithium-ion battery; POLYETHYLENE SEPARATORS; POROUS SEPARATOR; MEMBRANE; PVDF
- Issue Date
- 2016-09
- Publisher
- ELSEVIER SCIENCE BV
- Citation
- JOURNAL OF POWER SOURCES, v. 325, Page. 732-738
- Abstract
- To establish an accurate correlation between a separator's pore structure and the electrochemical performance of a lithium-ion battery (LIB), we fabricate well defined polyethylene (PE) separators on the same production line while maintaining most processing variables, except for composition. Four PE separators having different thicknesses and porosities (16 mu m/37%, 16 mu m/40%, 16 mu m/47%, 22 mu m/47%, respectively) are physically and electrochemically evaluated in detail. Although thickness and porosity remain good parameters by which to represent the separators' characteristics, both the normalized Gurley number and ionic conductance are found to have much stronger relationships with the rate capability. (C) 2016 Elsevier B.V. All rights reserved.
- URI
- https://www.sciencedirect.com/science/article/pii/S0378775316308047https://repository.hanyang.ac.kr/handle/20.500.11754/69481
- ISSN
- 0378-7753; 1873-2755
- DOI
- 10.1016/j.jpowsour.2016.06.094
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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