Aqueous Zinc‐Ion Batteries: Unraveling the Dissolution‐Mediated Reaction Mechanism of α‐MnO 2  Cathodes for Aqueous Zn‐Ion Batteries (Small 48/2020) | Zendy

Kim Sung Joo | Zendy; Wu Daren | Zendy; Sadique Nahian | Zendy; Quilty Calvin D. | Zendy; Wu Lijun | Zendy; Marschilok Amy C. | Zendy; Takeuchi Kenneth J. | Zendy; Takeuchi Esther S. | Zendy; Zhu Yimei | Zendy

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Aqueous Zinc‐Ion Batteries: Unraveling the Dissolution‐Mediated Reaction Mechanism of α‐MnO 2 Cathodes for Aqueous Zn‐Ion Batteries (Small 48/2020)

Author(s) -

Kim Sung Joo,

Wu Daren,

Sadique Nahian,

Quilty Calvin D.,

Wu Lijun,

Marschilok Amy C.,

Takeuchi Kenneth J.,

Takeuchi Esther S.,

Zhu Yimei

Publication year - 2020

Publication title -

small

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.785

H-Index - 236

eISSN - 1613-6829

pISSN - 1613-6810

DOI - 10.1002/smll.202070259

Subject(s) - dissolution , aqueous solution , electrochemistry , zinc , ion , cathode , transmission electron microscopy , inorganic chemistry , reaction mechanism , chemistry , materials science , chemical engineering , electrode , nanotechnology , catalysis , metallurgy , organic chemistry , engineering

In article number 2005406, Esther S. Takeuchi, Yimei Zhu, and co‐workers demonstrate the dissolution‐mediated reaction mechanism of Zn/α‐MnO 2 system for aqueous zinc‐ion batteries via transmission electron microscopy. It involves α‐MnO 2 dissolution that activates the cell by inducing the reversible formation of Zn 4 SO 4 (OH) 6 · x H 2 O and ZnMn 3 O 7 ·3H 2 O upon electrochemical cycling via (de‐)insertion of Mn and Zn ions.

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