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최남순

Choi, Nam-Soon
Energy Materials Lab.
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Submicroporous/microporous and compatible/incompatible multi-functional dual-layer polymer electrolytes and their interfacial characteristics with lithium metal anode

Author(s)
Lee, Young-GiKyhm, KwangseukChoi, Nam-SoonRyu, Kwang Sun
Issued Date
2006-12
DOI
10.1016/j.jpowsour.2006.05.008
URI
https://scholarworks.unist.ac.kr/handle/201301/6672
Fulltext
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=34047146409
Citation
JOURNAL OF POWER SOURCES, v.163, no.1, pp.264 - 268
Abstract
A novel multi-functional dual-layer polymer electrolyte was prepared by impregnating the interconnected pores with an ethylene carbonate (EC/dimethyl carbonate (DMC)/lithium hexafluorophosphate (LiPF6) solution. An incompatible layer is based on a microporous polyethylene (PE) and a compatible layer, based on a poly(vinylidenefluoride-co-hexafluoropropylene) (P(VdF-co-HFP)) is sub-microporous and compatible with an electrolyte solution. The Li electrode/the dual-layer polymer electrolyte/Li[Ni0.15Li0.23Mn0.62]O-2 cell showed stable cycle performance under prolonged cycle number. This behavior is due to the enhanced compatibility between the matrix polymer and the liquid electrolytes within the submicroporous compatible layer, which could lead to a controlled Li+ deposition on the Li anode surface by forming homegeneous electrolyte zone near the anode.
Publisher
ELSEVIER SCIENCE BV
ISSN
0378-7753
Keyword (Author)
dual-layerpolymer electrolytecompatible layerLi+ depositioncycle lifehomogeneous electrolyte zone
Keyword
ELECTROCHEMICAL CHARACTERISTICSBATTERIES

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