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 language | English |
|---|---|
| Article number | e202200588 |
| Journal | ChemPhysChem |
| Volume | 24 |
| Issue number | 4 |
| Early online date | 4 Oct 2022 |
| DOIs | |
| State | Published - 14 Feb 2023 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2022 Wiley-VCH GmbH.
Funding
Financial support from Science and Engineering Research Board (SERB), India (File No: SRG/2019/000296) and University Grants Commission (UGC), India (No. F.30‐509/(BSR)) are gratefully acknowledged. PN, SD and AM thank to Council of Scientific and Industrial Research (CSIR), India for SRF (File No: 08/155(0064)/2019‐EMR‐1), JRF (File No: 08/0155(12174)/2021‐EMR‐1), and JRF (File No: 08/0155(13430)/2022‐EMR‐1), respectively.
| Funders | Funder number |
|---|---|
| Joseph Rowntree Foundation | 08/0155(13430)/2022‐EMR‐1, 08/0155(12174)/2021‐EMR‐1 |
| Council of Scientific and Industrial Research, India | 08/155(0064)/2019‐EMR‐1 |
| University Grants Commission | .30‐509/(BSR) |
| Science and Engineering Research Board | SRG/2019/000296 |
Keywords
- carbon
- energy conversion
- prussian blue analogue
- sodium-ion battery
- stainless steel corrosion