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A dual membrane composed of composite polymer membrane and glass fiber membrane for rechargeable lithium-oxygen batteries

Title
A dual membrane composed of composite polymer membrane and glass fiber membrane for rechargeable lithium-oxygen batteries
Author
김동원
Keywords
Lithium-oxygen battery; Dual membrane; Composite polymer membrane; Cycling stability; Lithium dendrite
Issue Date
2018-03
Publisher
ELSEVIER SCIENCE BV
Citation
JOURNAL OF MEMBRANE SCIENCE, v. 550, page. 340-347
Abstract
Development of the lithium ion-conducting membrane with high ionic conductivity and good interfacial stability is a major challenge for lithium-oxygen batteries with high energy density. Herein, we design the dual membrane composed of Li+ ion-conducting ceramic-based composite polymer membrane and glass fiber membrane. The optimized membrane exhibited a high ionic conductivity of 8.1 x 10(-4) S cm(-1) at ambient temperature and retained an electrolyte solution well in the membrane. The dual membrane also effectively suppressed the lithium dendrite growth and blocked superoxide anion radical attack toward polymer in the composite polymer membrane. The lithium-oxygen cell employing dual membrane exhibited improved cycle life (> 70 cycles) at a constant current density of 0.1 mA cm(-2), which was much better than the cell with either a composite polymer membrane alone or a glass fiber membrane alone.
URI
https://www.sciencedirect.com/science/article/pii/S0376738817321270?via%3Dihubhttp://repository.hanyang.ac.kr/handle/20.500.11754/117910
ISSN
0376-7388; 1873-3123
DOI
10.1016/j.memsci.2018.01.011
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CHEMICAL ENGINEERING(화학공학과) > Articles
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