A Renewable Sedimentary Slurry Battery: Preliminary Study in Zinc Electrodes

Yue Liu; Qiyang Hu; Jing Zhong; Zhixing Wang; Huajun Guo; Guochun Yan; Xinhai Li; Wenjie Peng; Jiexi Wang

iScience (Dec 2020)

A Renewable Sedimentary Slurry Battery: Preliminary Study in Zinc Electrodes

Yue Liu,
Qiyang Hu,
Jing Zhong,
Zhixing Wang,
Huajun Guo,
Guochun Yan,
Xinhai Li,
Wenjie Peng,
Jiexi Wang

Affiliations

Yue Liu: School of Metallurgy and Environment, Central South University, Changsha, 410083, P.R. China
Qiyang Hu: School of Metallurgy and Environment, Central South University, Changsha, 410083, P.R. China; Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, PR China
Jing Zhong: School of Metallurgy and Environment, Central South University, Changsha, 410083, P.R. China
Zhixing Wang: School of Metallurgy and Environment, Central South University, Changsha, 410083, P.R. China; Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, PR China
Huajun Guo: School of Metallurgy and Environment, Central South University, Changsha, 410083, P.R. China; Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, PR China
Guochun Yan: School of Metallurgy and Environment, Central South University, Changsha, 410083, P.R. China; Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, PR China
Xinhai Li: School of Metallurgy and Environment, Central South University, Changsha, 410083, P.R. China; Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, PR China
Wenjie Peng: School of Metallurgy and Environment, Central South University, Changsha, 410083, P.R. China; Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, PR China
Jiexi Wang: School of Metallurgy and Environment, Central South University, Changsha, 410083, P.R. China; Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Central South University, Changsha 410083, PR China; State Key Laboratory for Power Metallurgy, Central South University, Changsha 410083, PR China; Corresponding author

Journal volume & issue: Vol. 23, no. 12
p. 101821

Abstract

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Summary: Low-cost, scalable energy storage is the key to continuing growth of renewable energy technologies. Here a battery with sedimentary slurry electrode (SSE) is proposed. Through the conversion of discrete particles between sedimentary and suspending types, it not only inherits the advantages of semi-solid flow cell but also exhibits high energy density and stable conductive network. Given an example, the zinc SSE (ZSSE) delivers a large discharge capacity of 479.2 mAh g−1 at 10 mA cm−2. More importantly, by renewal of the slurry per 20 cycles, it can run for 112 and 75 cycles before falling below 80% of designed capacity under 10 mA cm−2 (20% DODZn) and 25 mA cm−2 (25% DODZn), respectively. The lost capacity after cycles is able to recover after slurry renewal and the end-of-life SSE can be easily reused by re-formation. The concept of SSE brands a new way for electrochemical energy storage.

Published in iScience

ISSN: 2589-0042 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Science
Website: http://www.cell.com/iscience/home

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