Yoon, Seung-Beom Lee, Suk-Woo Lee, Chang-Wook Park, Sang-Loon Kim, Hyun-Kyung Nam, Kyung-Wan Chung, Kyung-Yoon Roh, Kwang Chul Kim, Kwang-Bum 2024-01-20T06:03:14Z 2024-01-20T06:03:14Z 2021-09-04 2015-10 0013-4651 https://pubs.kist.re.kr/handle/201004/124987 Zinc-manganese mixed oxide (ZMO)/carbon nanotube (CNT) composites are synthesized based on an electronic wiring design for use in Li-ion batteries. The resulting composite consists of ZMO nanoparticles in intimate contact with CNT. The ZMO nanoparticles, which are in the electrical wiring with the CNTs, exhibit an additional conversion reaction involving MnO/Mn3O4, resulting in an enhanced reversible capacity up to 1050 mA h g(-1), which exceeds the theoretical reversible capacity of ZnMn2O4 (780 mA h g(-1)). During the synthesis of the ZMO/CNT composite, calcination in the presence of NH3 gas not only inhibits the oxidative decomposition of the CNTs but also reduces the oxidation state of Mn in the resulting composite. The elimination of superfluous oxygen (decrease in oxidation state of Mn in ZMO) leads to a decrease in irreversible capacities during the first cycle, directly related to energy efficiency. (C) 2015 The Electrochemical Society. All rights reserved. English ELECTROCHEMICAL SOC INC LITHIUM-ION BATTERIES VOLTAMMETRIC CHARGE ANALYSIS ANODE MATERIAL ZNMN2O4 NANORODS STORAGE MATERIAL PERFORMANCE LI COMPOSITE GRAPHENE ELECTRODES Reversible Capacity Enhancement of Zinc-Manganese Mixed Oxide through Nanoscale Electrochemical Wiring with Carbon Nanotubes Article 10.1149/2.0271510jes 1 JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v.162, no.10, pp.A1990 - A1996 JOURNAL OF THE ELECTROCHEMICAL SOCIETY 162 10 A1990 A1996 scie scopus 000361501800009 2-s2.0-84940093226 Electrochemistry Materials Science, Coatings & Films Electrochemistry Materials Science Article LITHIUM-ION BATTERIES VOLTAMMETRIC CHARGE ANALYSIS ANODE MATERIAL ZNMN2O4 NANORODS STORAGE MATERIAL PERFORMANCE LI COMPOSITE GRAPHENE ELECTRODES Zinc-Manganese Mixed Oxide Carbon Nanotubes Nanoscale Electrochemical Wiring