A new long-life aluminum-air battery is set to resolve challenges in rechargeable energy storage technology, thanks to ECS member Ryohei Mori.
Mori’s development has yielded a new type of aluminum-air battery, which is rechargeable by refilling with either salt or fresh water.
The research is detailed in an open access article in the Journal of The Electrochemical Society, where Mori explains how he modified the structure of the previous aluminum-air battery to ensure a longer battery life.
Theoretically, metal-air technology can have very high energy densities, which makes it a promising candidate for next-generation batteries that could enable such things as long-range battery-electric vehicles.
However, the long-standing barrier of anode corrosion and byproduct accumulation have halted these batteries from achieving their full potential. Dr. Mori’s recently published paper, “Addition of Ceramic Barriers to Aluminum-Air batteries to Suppress By-product Formation on Electrodes,” details how to combat this issue.
The new battery places ceramic and carbonaceous material between aqueous electrolyte and electrodes as an inner layer.
This from the Journal of The Electrochemical Society:
In our previous study, aqueous NaCl was used as an electrolyte. In the present study, we used NaOH and KOH to investigate the functionality of the ALFA cell and to verify the validity of our assumptions. Another aspect considered was that the major drawback of a metal–air battery is evaporation of its liquid electrolyte. Therefore, to investigate the possibility of preventing liquid electrolyte evaporation in the ALFA cell, we added glycerin to aqueous NaCl solution.
Make sure to join Mori and other brilliant scientific minds by becoming a member of ECS today!
And if you’re interested in energy and battery technology, make sure to check out the upcoming ECS Conference on Electrochemical Energy Conversion & Storage with SOFC-XIV in Glasgow, Scotland this July![Sources: Green Car Congress & EE Times]