Formation of Septuple-Shelled (Co2/3 Mn1/3 )(Co5/6 Mn1/6 )2 O4 Hollow Spheres as Electrode Material for Alkaline Rechargeable Battery

Xiaoxian Zhao; Ranbo Yu; Hongjie Tang; Dan Mao; Jian Qi; Bao Wang; Yu Zhang; Huijun Zhao; Wenping Hu; Dan Wang

doi:10.1002/adma.201700550

Formation of Septuple-Shelled (Co_2/3 Mn_1/3 )(Co_5/6 Mn_1/6 )₂ O₄ Hollow Spheres as Electrode Material for Alkaline Rechargeable Battery

Adv Mater. 2017 Sep;29(34). doi: 10.1002/adma.201700550. Epub 2017 Jul 6.

Authors

Xiaoxian Zhao¹, Ranbo Yu¹, Hongjie Tang², Dan Mao², Jian Qi², Bao Wang², Yu Zhang³, Huijun Zhao⁴, Wenping Hu⁵, Dan Wang^{2

4}

Affiliations

¹ Department of Physical Chemistry, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, No. 30, Xueyuan Road, Haidian District, Beijing, 100083, P. R. China.
² State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 1 North 2nd Street, Zhongguancun, Beijing, 100190, P. R. China.
³ Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environmental, Beihang University, Beijing, 100191, P. R. China.
⁴ Centre for Clean Environment and Energy, Gold Coast Campus, Griffith University, Queensland, 4222, Australia.
⁵ Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science & Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, P. R. China.

PMID: 28682005
DOI: 10.1002/adma.201700550

Abstract

The multishelled (Co_2/3 Mn_1/3 )(Co_5/6 Mn_1/6 )2O₄ hollow microspheres with controllable shell numbers up to septuple shells are synthesized using developed sequential templating method. Exhilaratingly, the septuple-shelled complex metal oxide hollow microsphere is synthesized for the first time by doping Mn into Co₃ O₄ , leading to the change of crystalline rate of precursor. Used as electrode materials for alkaline rechargeable battery, it shows a remarkable reversible capacity (236.39 mAh g^-1 at a current density of 1 A g^-1 by three-electrode system and 106.85 mAh g^-1 at 0.5 A g^-1 in alkaline battery) and excellent cycling performance due to its unique structure.

Keywords: complex metal oxides; hollow sphere; rechargeable batteries; septuple-shelled; sequential templating method.