DataVXACS Applied Materials & InterfacesPaper
journal article·2017-08-09

High-Performance Cathode Based on Microporous Mo–V–Bi Oxide for Li Battery and Investigation by Operando X-ray Absorption Fine Structure

Zhenxin Zhang, Satoshi Ishikawa, Masaki Kikuchi, Hirofumi Yoshikawa, Qi Lian, Heng Wang, Toshiaki Ina, Akihiro Yoshida, Masahiro Sadakane, Futoshi Matsumoto, Wataru Ueda

ACS Applied Materials & Interfaces· Volume 9· Issue 31
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Source abstract

Abstract

The development of cathode-active material of Li battery is important for the current emerging energy transferring and saving problems. A stable crystalline microporous complex metal oxide based on Mo, V, and Bi is an active and suitable material for Li battery. High capacity (380 Ah/kg) and stable cycle performance are achieved. X-ray absorption near-edge structure analyses demonstrate that the original Mo 6+ and V 4+ ions are reduced to Mo 4+ and V 3+ in the discharging process, respectively, which results in a 70-electron reduction per formula. The reduced metal ions can be reoxidized reversibly in the next charging process. Furthermore, extended X-ray absorption fine structure analyses reveal that the Mo–O bonds in the material are lengthened in the discharging process probably due to interaction with Li + without change of the basic structure.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storage

OpenAlex topics: Advancements in Battery Materials · Supercapacitor Materials and Fabrication · Transition Metal Oxide Nanomaterials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Faculty of Engineering, Kanagawa University, Rokkakubashi, Kanagawa-ku, Yokohama-shi, Kanagawa 221-8686, Japan

Materials and Structures Laboratory, Tokyo Institute of Technology, Nagatsuta-cho 4259, Midori-ku, Yokohama-city, Kanagawa 226-8503, Japan

School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan

School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China

Japan Synchrotron Radiation Research Institute, Sayo-gun, Hyogo 679-5198, Japan

Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi Hiroshima 739-8527, Japan

Funding

Ministry of Education, Culture, Sports, Science and Technology

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