A Rechargeable Aqueous Sodium-Ion Battery

Ravikumar Thimmappa; Manu Gautam; Shambhulinga Aralekallu; Mruthunjayachari Chattanahalli Devendrachari; Alagar Raja Kottaichamy; Zahid Manzoor Bhat; Musthafa Ottakam Thotiyl

doi:10.1002/celc.201900317

A Rechargeable Aqueous Sodium-Ion Battery

Ravikumar Thimmappa
, Manu Gautam
, Shambhulinga Aralekallu
, Mruthunjayachari Chattanahalli Devendrachari
, Alagar Raja Kottaichamy
, Zahid Manzoor Bhat
, Musthafa Ottakam Thotiyl^*

^*Corresponding author for this work

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

25 Scopus citations

Abstract

We report a rechargeable sodium-ion battery in an aqueous environment with hydrophobic few-layer graphene as the capacitive anode and hexacyanometallate as the insertion cathode. Owing to the lack of hydrophilic functionalities, sodium-ion adsorption is selectively favored over H⁺ adsorption at the hydrophobic anode/electrolyte interface without the complexity of widely encountered hydrogen-ion insertion/H₂ evolution. Hydrophobicity precludes chemical bond formation with sodium ions, thereby improving reversibility and extended cyclability during charge discharge chemistry.

Original language	English
Pages (from-to)	2095-2099
Number of pages	5
Journal	ChemElectroChem
Volume	6
Issue number	7
DOIs	https://doi.org/10.1002/celc.201900317
State	Published - 1 Apr 2019
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

aqueous batteries
capacitive graphene anode
few-layer graphene
intercalation cathode
metal-ion batteries

ASJC Scopus subject areas

Catalysis
Electrochemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/celc.201900317

Cite this

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title = "A Rechargeable Aqueous Sodium-Ion Battery",

abstract = "We report a rechargeable sodium-ion battery in an aqueous environment with hydrophobic few-layer graphene as the capacitive anode and hexacyanometallate as the insertion cathode. Owing to the lack of hydrophilic functionalities, sodium-ion adsorption is selectively favored over H+ adsorption at the hydrophobic anode/electrolyte interface without the complexity of widely encountered hydrogen-ion insertion/H2 evolution. Hydrophobicity precludes chemical bond formation with sodium ions, thereby improving reversibility and extended cyclability during charge discharge chemistry.",

keywords = "aqueous batteries, capacitive graphene anode, few-layer graphene, intercalation cathode, metal-ion batteries",

author = "Ravikumar Thimmappa and Manu Gautam and Shambhulinga Aralekallu and Devendrachari, \{Mruthunjayachari Chattanahalli\} and Kottaichamy, \{Alagar Raja\} and Bhat, \{Zahid Manzoor\} and Thotiyl, \{Musthafa Ottakam\}",

note = "Publisher Copyright: {\textcopyright} 2019 Wiley-VCH Verlag GmbH \& Co. KGaA, Weinheim",

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doi = "10.1002/celc.201900317",

language = "English",

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journal = "ChemElectroChem",

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AU - Thimmappa, Ravikumar

AU - Gautam, Manu

AU - Aralekallu, Shambhulinga

AU - Devendrachari, Mruthunjayachari Chattanahalli

AU - Kottaichamy, Alagar Raja

AU - Bhat, Zahid Manzoor

AU - Thotiyl, Musthafa Ottakam

PY - 2019/4/1

Y1 - 2019/4/1

N2 - We report a rechargeable sodium-ion battery in an aqueous environment with hydrophobic few-layer graphene as the capacitive anode and hexacyanometallate as the insertion cathode. Owing to the lack of hydrophilic functionalities, sodium-ion adsorption is selectively favored over H+ adsorption at the hydrophobic anode/electrolyte interface without the complexity of widely encountered hydrogen-ion insertion/H2 evolution. Hydrophobicity precludes chemical bond formation with sodium ions, thereby improving reversibility and extended cyclability during charge discharge chemistry.

AB - We report a rechargeable sodium-ion battery in an aqueous environment with hydrophobic few-layer graphene as the capacitive anode and hexacyanometallate as the insertion cathode. Owing to the lack of hydrophilic functionalities, sodium-ion adsorption is selectively favored over H+ adsorption at the hydrophobic anode/electrolyte interface without the complexity of widely encountered hydrogen-ion insertion/H2 evolution. Hydrophobicity precludes chemical bond formation with sodium ions, thereby improving reversibility and extended cyclability during charge discharge chemistry.

KW - aqueous batteries

KW - capacitive graphene anode

KW - few-layer graphene

KW - intercalation cathode

KW - metal-ion batteries

UR - https://www.scopus.com/pages/publications/85064348844

U2 - 10.1002/celc.201900317

DO - 10.1002/celc.201900317

M3 - Article

AN - SCOPUS:85064348844

SN - 2196-0216

VL - 6

SP - 2095

EP - 2099

JO - ChemElectroChem

JF - ChemElectroChem

IS - 7

ER -

A Rechargeable Aqueous Sodium-Ion Battery

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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