Investigation of low-cost oligoanthraquinones for alkaline, aqueous rechargeable batteries with cell potential up to 1.13 V
Abstract
The transition to renewable energy sources has created need for stationary, low-cost electrical energy storage. A possible technology to address both cost and environmental concerns are batteries based on organic materials. The use of oligoanthraquinones as a replacement for metal hydrides or cadmium in nickel hydroxide rechargeable batteries is investigated in detail regarding polymer composition, electrochemical reversibility and electroactive species cost. Two different oligoanthraquinones are paired with a nickel hydroxide cathode and demonstrate cycling stability dependent on parameters such as supporting electrolyte strength, C-rate, and anode swelling. The energy efficiencies are up to 75% and the cell potential up to 1.13 V. Simple functionalization of the basic structure increases the cell potential by 100 mV.
- Publication:
-
Journal of Power Sources
- Pub Date:
- March 2018
- DOI:
- 10.1016/j.jpowsour.2018.01.092
- Bibcode:
- 2018JPS...381...94D
- Keywords:
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- Energy storage;
- Rechargeable battery;
- Anthraquinone;
- Renewable energy