Realizing a Low-Cost and Sustainable Rechargeable Aqueous Aluminum-Metal Battery with Exfoliated Graphite Cathode

Autor: Shyamal K. Das, Sunny Nandi
Rok vydání: 2019
Předmět:
Zdroj: ACS Sustainable Chemistry & Engineering. 7:19839-19847
ISSN: 2168-0485
DOI: 10.1021/acssuschemeng.9b05185
Popis: A rechargeable battery with earth-abundant and low-cost aluminum (Al) metal as one of the electrodes holds immense promise as a sustainable and affordable energy storage device. The high gravimetric/volumetric storage capacities (2981 mAh g–1/8056 mAh cm–3) of Al along with the ability to exchange three electrons per cation are certainly advantageous for achieving batteries capable of delivering high energy and power densities. A recent yet exemplary example is the chloroaluminate electrolyte-based Al-metal battery with a carbonaceous cathode. However, chloroaluminate electrolytes are highly reactive to most of the metals and stainless steel, moisture sensitive, and expensive. These demerits of chloroaluminate electrolytes will certainly be impediments for mass-scale production of safe and low-cost Al-metal batteries. The use of water-based electrolyte in rechargeable Al-metal batteries is expected to mitigate these challenges. Herein, we report the working of a rechargeable aqueous Al-metal battery with ...
Databáze: OpenAIRE