TY - JOUR
T1 - A Rechargeable Aqueous Sodium-Ion Battery
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
N1 - Publisher Copyright:
© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
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 - http://www.scopus.com/inward/record.url?scp=85064348844&partnerID=8YFLogxK
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 -
