Lee, Jeongyeon Hwang, Taejin Lee, Yongho Lee, Joong Kee Choi, Wonchang 2024-01-20T05:33:55Z 2024-01-20T05:33:55Z 2021-09-04 2015-11-01 0167-577X https://pubs.kist.re.kr/handle/201004/124777 alpha-MnO2 nanowires were synthesized by a hydrothermal method and then mixed with agglomerated sulfur powders. Homogeneous alpha-MnO2-coated sulfur particles were obtained by utilizing heat treatment intended to melt and recrystallize the sulfur. alpha-MnO2 nanowires lead to the suppression in re-agglomeration of sulfur powders during heat treatment and result in successful coating as well as decreased size in parent sulfur powders. The alpha-MnO2-coated sulfur particles were used as the cathode material for lithium-ion battery applications. Electrochemical evaluation such as the rate capability characteristics and impedance study indicates that the alpha-MnO2 coated sulfur cathode shows lower resistance and improved rate capability compared to a pristine sulfur cathode. (C) 2015 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV LI-S BATTERIES PERFORMANCE COMPOSITE Coating of sulfur particles with manganese oxide nanowires as a cathode material in lithium-sulfur batteries Article 10.1016/j.matlet.2015.06.003 1 MATERIALS LETTERS, v.158, pp.132 - 135 MATERIALS LETTERS 158 132 135 scie scopus 000361264800033 2-s2.0-84930673651 Materials Science, Multidisciplinary Physics, Applied Materials Science Physics Article LI-S BATTERIES PERFORMANCE COMPOSITE Lithium-sulfur battery Sulfur Metallic oxide