Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
228611 | Journal of Industrial and Engineering Chemistry | 2009 | 4 Pages |
Abstract
Poly(methyl methacrylate)-grafted polyethylene (PE-g-PMMA) separators were prepared by pre-irradiation grafting technique of methyl methacrylate onto a commercial polyethylene separator. The prepared separators were characterized by using charge/discharge (C/D) cycling test, AC impedance, and thermal stability analyses. Thermal shrinkage (TS) of the PE-g-PMMA separators decreased with an increasing degree of grafting up to 70% above which it was saturated. The PE-g-PMMA separators showed a better oxidation stability on the anode up to 5 V and a better cycle life performance than the original PE separator. These characteristics make the prepared separators suitable for applications in high voltage secondary lithium batteries.
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Chemical Engineering (General)
Authors
Sung-Jin Gwon, Jae-Hak Choi, Joon-Yong Sohn, Youn-Mook Lim, Young-Chang Nho, Young-Eon Ihm,