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Bi Nanosheets on Porous Carbon Cloth Composites for Ultrastable Flexible Nickel-Bismuth Batteries.
- Source :
-
ACS applied materials & interfaces [ACS Appl Mater Interfaces] 2023 Aug 02; Vol. 15 (30), pp. 36190-36200. Date of Electronic Publication: 2023 Jul 18. - Publication Year :
- 2023
-
Abstract
- The use of bismuth (Bi) as an anode material in nickel-metal batteries has gained significant attention due to its highly reversible redox reaction and suitable operating conditions. However, the cycling stability and flexibility of nickel-bismuth (Ni//Bi) batteries need to be further improved. This paper employs a facile electrodeposition technique to prepare Bi nanosheets uniformly grown on a porous carbon cloth (PCC), denoted as Bi-PCC electrodes. The Bi-PCC electrode portrays a specific surface area and good wettability that enable fast charge transfer and ion transport channels. Consequently, the Bi-PCC electrode demonstrates a high specific capacity of up to 297.1 mAh g <superscript>-1</superscript> at 2 A g <superscript>-1</superscript> , with a capacity retention of up to 71.5% at 2-40 A g <superscript>-1</superscript> and an impressive capacity retention of 79.9% after 1000 cycles at 2-40 A g <superscript>-1</superscript> . More importantly, the flexible rechargeable Ni//Bi battery (denoted as Ni(OH) <subscript>2</subscript> -PCC//Bi-PCC) with Bi-PCC as the anode and Ni(OH) <subscript>2</subscript> -PCC as the cathode has excellent electrochemical performance. The Ni(OH) <subscript>2</subscript> -PCC//Bi-PCC battery boasts a remarkable capacity retention of 93.6% after 3000 cycles at 10 A g <superscript>-1</superscript> . Further, the cell presents a maximum energy density of 73.1 Wh kg <superscript>-1</superscript> and an impressive power density of 11.9 kW kg <superscript>-1</superscript> .
Details
- Language :
- English
- ISSN :
- 1944-8252
- Volume :
- 15
- Issue :
- 30
- Database :
- MEDLINE
- Journal :
- ACS applied materials & interfaces
- Publication Type :
- Academic Journal
- Accession number :
- 37463433
- Full Text :
- https://doi.org/10.1021/acsami.3c05666