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High performance separator coated with amino-functionalized SiO2 particles for safety enhanced lithium-ion batteries

Title
High performance separator coated with amino-functionalized SiO2 particles for safety enhanced lithium-ion batteries
Author
김동원
Keywords
Amino-functionalized SiO2 particles; Lithium-ion battery; Ceramic-coated separator; Thermal stability; Cycle performance
Issue Date
2017-08
Publisher
ELSEVIER SCIENCE BV
Citation
JOURNAL OF MEMBRANE SCIENCE, v. 535, page. 151-157
Abstract
Amino-functionalized SiO2 (N-SiO2) particles were synthesized and used to coat both sides of a porous polyethylene separator. The N-SiO2 coated separator exhibited good wettability by liquid electrolyte, high ionic conductivity when soaked with liquid electrolyte and enhanced thermal stability at high temperatures. By employing the N-SiO2 coated separator in fabricating the lithium-ion cell composed of a graphite negative electrode and a LiNi1/3Co1/3Mn1/3O2 positive electrode, its cycling stability was improved compared to a cell assembled with either a conventional polyethylene separator or a SiO2 coated polyethylene separator. The NSiO2 coated separator is a promising separator to enhance the cycling stability and thermal safety of lithium-ion battery.
URI
https://www.sciencedirect.com/science/article/pii/S0376738817303654?via%3Dihubhttp://repository.hanyang.ac.kr/handle/20.500.11754/115309
ISSN
0376-7388; 1873-3123
DOI
10.1016/j.memsci.2017.04.042
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CHEMICAL ENGINEERING(화학공학과) > Articles
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