Innovative Battery Chemistry Revolutionises Zinc-Air Battery
International Research Cooperation for Sustainable Batteries of the Future
© WWU - MEET (Judith Kraft)
Key parameters of the zinc-air battery optimised
"Our innovative, non-alkaline electrolyte brings a previously unknown reversible zinc peroxide (ZnO2)/O2 chemistry into the zinc-air battery”, explains Dr. Wei Sun. Compared with the conventionally strong alkaline electrolytes, the newly developed non-alkaline aqueous electrolyte, which is based on the zinc trifluoromethanesulfonate salt, has several decisive advantages: The zinc anode is used more efficiently with a higher chemical stability and electrochemical reversibility. The full zinc-air batteries thus constructed can long-term operate stably for 320 cycles and 1,600 hours under ambient air atmosphere.
The mechanism of this ZnO2/O2 battery chemistry and the role of the hydrophobic trifluoromethanesulfonate anion were systematically revealed using well-designed electrochemical, analytical techniques and multiscale simulations. The identified increased energy density has now the potential to compete with the lithium-ion battery currently dominating the market. “The zinc-air battery provides a potential alternative battery technology with advantages such as environmental friendliness, high safety and low costs”, emphasises Sun. “This technology still requires further, intensive research and optimisation before its practical application.”
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Topic World Battery Technology
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Topic World Battery Technology
The topic world Battery Technology combines relevant knowledge in a unique way. Here you will find everything about suppliers and their products, webinars, white papers, catalogs and brochures.