Low-Cost and Scalable Ni-Prussian Blue Analogue//Functionalized Carbon Based Na-Ion Systems for all Climate Operations

Pappu Naskar, Subhrajyoti Debnath, Apurba Maiti, Biplab Biswas, Anjan Banerjee

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Herein, we have developed a sodium ion based aqueous energy storage device with nickel prussian-blue-analogue (Ni-PBA) positive and functionalized carbon-black negative electrodes in 1 M Na2SO4 electrolyte solution. The components required to develop the device, i. e., stainless steel (SS) current-collectors, absorbent-glass-mat separator, electrolyte, carbon-black, and precursors of Ni-PBA, are all environmentally benign and inexpensive. To minimize the corrosion of pristine-SS, polyaniline coating on the SS surface is applied by in situ electrodeposition method. The full cell exhibits a specific capacity of 28 mAh g−1 with 90 % Coulomb efficiency (@0.2C), an energy density of 34 Wh kg−1 (@20 W kg−1), a power density of 100 W kg−1 (@18 Wh kg−1) and a good life cycle (70 % capacity-retention over 500 cycles @1.0C rate) within the 0–1.2 V window. The cell performance is further tested under variable temperatures, and 0–50 °C range is reported to be the working window for this cell.

Original languageEnglish
Article numbere202200588
JournalChemPhysChem
Volume24
Issue number4
Early online date4 Oct 2022
DOIs
StatePublished - 14 Feb 2023
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2022 Wiley-VCH GmbH.

Keywords

  • carbon
  • energy conversion
  • prussian blue analogue
  • sodium-ion battery
  • stainless steel corrosion

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