Hollow-porous nanospheres of ZnMn2O4 spinel: A high energy density cathode for rechargeable aqueous battery

Atin Pramanik; Shreyasi Chattopadhyay; Sandipan Maiti; Goutam De; Sourindra Mahanty

doi:10.1016/j.matchemphys.2021.124373

Hollow-porous nanospheres of ZnMn₂O₄ spinel: A high energy density cathode for rechargeable aqueous battery

Atin Pramanik
, Shreyasi Chattopadhyay
, Sandipan Maiti
, Goutam De
, Sourindra Mahanty

CSIR - Central Glass Ceramic Research Institute

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

Well-controlled hollow-porous nanostructures can provide enhanced charge storage capacity owing to the rapid diffusion of electrolyte ions into their interior. However, interface engineering of stable hollow-porous nanostructures with reversible faradaic reactions for efficient energy conversion/storage devices is still a challenge. Herein, we report solvothermal synthesis of spinel ZnMn₂O₄ with a hollow-porous spherical (ZMO_HS) morphology. The formation mechanism of such a hierarchical nanostructure has been discussed. The ZMO_HS exhibits a specific capacity of ~187 mAh g⁻¹ at a current density of 2 A g⁻¹ when tested as a faradaic electrode (vs Pt) for a rechargeable aqueous battery (RAB) in alkaline electrolyte. Furthermore, a full cell RAB constituting of ZMO_HS//activated carbon (AC) demonstrates energy and power densities of ~215.7 Wh Kg⁻¹ and ~1184.5 W kg⁻¹ respectively, with ultra-long cycling stability (~106% capacitance retention after 10,000 cycles), making it a very promising material for next-generation energy storage device applications.

Original language	English
Article number	124373
Journal	Materials Chemistry and Physics
Volume	263
DOIs	https://doi.org/10.1016/j.matchemphys.2021.124373
State	Published - 15 Apr 2021
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2021 Elsevier B.V.

Funding

A. Pramanik and S. Maiti thank CSIR India for senior research fellowship (Award Nos. 31/15(136)/2017-EMR-I and 31/15(127)/2015-EMR-I respectively). S. Chattopadhyay thanks UGC, India for research fellowship (Award No. F.2-44/2011(SA-I) .

Funders	Funder number
Council of Scientific and Industrial Research, India	31/15(136)/2017-EMR-I, 31/15(127)/2015-EMR-I
University Grants Committee	F.2-44/2011

Keywords

Aqueous rechargeable battery
Electrochemical energy storage
Hydrothermal synthesis
Ternary metal oxide
ZnMnO hollow sphere

Access to Document

10.1016/j.matchemphys.2021.124373

Cite this

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title = "Hollow-porous nanospheres of ZnMn2O4 spinel: A high energy density cathode for rechargeable aqueous battery",

abstract = "Well-controlled hollow-porous nanostructures can provide enhanced charge storage capacity owing to the rapid diffusion of electrolyte ions into their interior. However, interface engineering of stable hollow-porous nanostructures with reversible faradaic reactions for efficient energy conversion/storage devices is still a challenge. Herein, we report solvothermal synthesis of spinel ZnMn2O4 with a hollow-porous spherical (ZMOHS) morphology. The formation mechanism of such a hierarchical nanostructure has been discussed. The ZMOHS exhibits a specific capacity of \textasciitilde{}187 mAh g−1 at a current density of 2 A g−1 when tested as a faradaic electrode (vs Pt) for a rechargeable aqueous battery (RAB) in alkaline electrolyte. Furthermore, a full cell RAB constituting of ZMOHS//activated carbon (AC) demonstrates energy and power densities of \textasciitilde{}215.7 Wh Kg−1 and \textasciitilde{}1184.5 W kg−1 respectively, with ultra-long cycling stability (\textasciitilde{}106\% capacitance retention after 10,000 cycles), making it a very promising material for next-generation energy storage device applications.",

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doi = "10.1016/j.matchemphys.2021.124373",

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T2 - A high energy density cathode for rechargeable aqueous battery

AU - Pramanik, Atin

AU - Chattopadhyay, Shreyasi

AU - Maiti, Sandipan

AU - De, Goutam

AU - Mahanty, Sourindra

PY - 2021/4/15

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N2 - Well-controlled hollow-porous nanostructures can provide enhanced charge storage capacity owing to the rapid diffusion of electrolyte ions into their interior. However, interface engineering of stable hollow-porous nanostructures with reversible faradaic reactions for efficient energy conversion/storage devices is still a challenge. Herein, we report solvothermal synthesis of spinel ZnMn2O4 with a hollow-porous spherical (ZMOHS) morphology. The formation mechanism of such a hierarchical nanostructure has been discussed. The ZMOHS exhibits a specific capacity of ~187 mAh g−1 at a current density of 2 A g−1 when tested as a faradaic electrode (vs Pt) for a rechargeable aqueous battery (RAB) in alkaline electrolyte. Furthermore, a full cell RAB constituting of ZMOHS//activated carbon (AC) demonstrates energy and power densities of ~215.7 Wh Kg−1 and ~1184.5 W kg−1 respectively, with ultra-long cycling stability (~106% capacitance retention after 10,000 cycles), making it a very promising material for next-generation energy storage device applications.

AB - Well-controlled hollow-porous nanostructures can provide enhanced charge storage capacity owing to the rapid diffusion of electrolyte ions into their interior. However, interface engineering of stable hollow-porous nanostructures with reversible faradaic reactions for efficient energy conversion/storage devices is still a challenge. Herein, we report solvothermal synthesis of spinel ZnMn2O4 with a hollow-porous spherical (ZMOHS) morphology. The formation mechanism of such a hierarchical nanostructure has been discussed. The ZMOHS exhibits a specific capacity of ~187 mAh g−1 at a current density of 2 A g−1 when tested as a faradaic electrode (vs Pt) for a rechargeable aqueous battery (RAB) in alkaline electrolyte. Furthermore, a full cell RAB constituting of ZMOHS//activated carbon (AC) demonstrates energy and power densities of ~215.7 Wh Kg−1 and ~1184.5 W kg−1 respectively, with ultra-long cycling stability (~106% capacitance retention after 10,000 cycles), making it a very promising material for next-generation energy storage device applications.

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KW - Ternary metal oxide

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