Charge-discharge performance of rechargeable organic-magnesium batteries using glyme-based electrolytes

H. Senoh, H. Sakaebe, H. Tokiwa, M. Uchida, H. Sano, M. Yao, T. Kiyobayashi

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

10 被引用数 (Scopus)

抄録

Rechargeable batteries composed of metallic Mg negative electrode, glyme-based electrolytes and organic positive electrode (2,5-dimethoxy-1,4-benzoquinone (DMBQ)) were proposed. The charge-discharge performance of the batteries was investigated at 30°C. The discharge capacity reaches ca. 200 mAh g(DMBQ)-1 in Mg(TFSA)2/monoglyme and diglyme electrolytes. This capacity suggests that a multi-electron redox reaction takes place in these electrolytes. Although the hysteresis between charge-discharge voltage plateaus are quite large in Mg(TFSA)2/diglyme, triglyme and tetraglyme electrolytes, the discharge voltage increases drastically after a few cycles in Mg(TFSA)2/monoglyme electrolyte. One of the reasons is that the overpotential of the Mg negative electrode for the Mg-dissolution is quite small. Although the capacity substantially decreases upon cycling, the cell using Mg(TFSA)2/monoglyme retains the high voltage at the discharge even after 20 cycles.

本文言語英語
ホスト出版物のタイトルBatteries Beyond Lithium-Ion
編集者D. A. Steingart, V. Thangadurai, V. Kalra, Y. Xing, V. Di Noto
出版社Electrochemical Society Inc.
ページ33-39
ページ数7
19
ISBN(電子版)9781607685395
DOI
出版ステータス出版済み - 2015
外部発表はい
イベントSymposium on Batteries Beyond Lithium-Ion - 228th ECS Meeting - Phoenix, 米国
継続期間: 10 11 201510 15 2015

出版物シリーズ

名前ECS Transactions
番号19
69
ISSN(印刷版)1938-6737
ISSN(電子版)1938-5862

会議

会議Symposium on Batteries Beyond Lithium-Ion - 228th ECS Meeting
国/地域米国
CityPhoenix
Period10/11/1510/15/15

All Science Journal Classification (ASJC) codes

  • 工学(全般)

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