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Alkaline-based aqueous sodium-ion batteries for large-scale energy storage

Engineering and Technology

Alkaline-based aqueous sodium-ion batteries for large-scale energy storage

H. Wu, J. Hao, et al.

Discover how a novel alkaline-type aqueous sodium-ion battery, developed by a team of researchers including Han Wu and Junnan Hao from The University of Adelaide, achieved an impressive energy density of 88.9 Wh kg⁻¹ and remarkable durability with 13,000 cycles at 10 C, transforming energy storage potential.

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Playback language: English
Abstract
Aqueous sodium-ion batteries (ASIBs) hold promise for large-scale energy storage but suffer from limited energy density and lifespan due to water decomposition. This study presents an alkaline-type ASIB with a Mn-based Prussian blue analogue cathode, achieving 13,000 cycles at 10 C and 88.9 Wh kg⁻¹ energy density at 0.5 C. A nickel/carbon layer suppresses oxygen evolution and enhances battery durability by creating a H₃O⁺-rich environment near the cathode and in-situ embedding Ni atoms into the cathode.
Publisher
Nature Communications
Published On
Jan 17, 2024
Authors
Han Wu, Junnan Hao, Yunling Jiang, Yiran Jiao, Jiahao Liu, Xin Xu, Kenneth Davey, Chunsheng Wang, Shi-Zhang Qiao
Tags
sodium-ion batteries
energy storage
alkaline-type
battery durability
Prussian blue analogue
oxygen evolution
H₃O⁺-rich environment

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