Back to Search
Start Over
Electrochemical Storage of Ammonium Versus Metal Ions in Bimetallic Hydroxide for Sustainable Aqueous Batteries.
- Source :
-
Advanced Functional Materials . 1/15/2024, Vol. 34 Issue 3, p1-9. 9p. - Publication Year :
- 2024
-
Abstract
- Aqueous batteries with high safety and cost efficiency usually employ metallic cations as charge carriers. Recently, ammonium (NH4+) ion batteries using the nonmetal NH4+ as a charge carrier exhibit distinct electrochemical features from conventional aqueous batteries. Herein, the electrochemical performances of a bimetallic hydroxide material are systematically studied with different charge carriers in the electrolytes, including NH4+, as well as the conventional monovalent metallic cations K+ and Na+, respectively. Electrochemical results indicate that the charge storage process using NH4+ as the working ions exhibits a higher discharge plateau, smaller electrochemical polarization, and larger discharge capacity than that using conventional metallic charge carriers. Experimental characterizations and theoretical calculations suggest that the strong interaction between NH4+ and the electrode material, as well as the low NH4+‐ion diffusion barrier lead to these superior electrochemical features. The assembled NH4+‐ion battery exhibits a good energy density of 123 Wh kg(cathode+anode)−1 at the power density of 480 W kg(cathode+anode)−1. These fundamental findings are important for developing good safety, low‐cost, and high‐energy aqueous batteries with sustainable NH4+ charge carriers. [ABSTRACT FROM AUTHOR]
- Subjects :
- *METAL ions
*CHARGE carriers
*DIFFUSION barriers
*MONOVALENT cations
*HYDROXIDES
Subjects
Details
- Language :
- English
- ISSN :
- 1616301X
- Volume :
- 34
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Advanced Functional Materials
- Publication Type :
- Academic Journal
- Accession number :
- 174780121
- Full Text :
- https://doi.org/10.1002/adfm.202310437