Among the biggest challenges that electric aircraft developers are facing today is the limitations of battery technologies. Unless scientists come up with new ways to make smaller and lighter batteries that hold more charge for longer periods, electric aircraft will be able to make only short, regional flights before needing to recharge.
To make matters more complicated, batteries degrade over time, reducing the amount of charge they can hold and shortening their life. Just as the lithium-ion batteries in cell phones and electric cars wear out every few years, electric aircraft using today’s battery technology will need their aging batteries replaced regularly. However, new research suggests that a minor modification to existing lithium-ion batteries could extend their lifespan, reducing the need for frequent battery replacements.
In a recent study published in the Journal of Materials Chemistry A, researchers at the Gwangju Institute of Science and Technology (GIST) in South Korea say they have come up with a new way to make lithium-ion batteries last longer. To do this, the researchers added an elastic web-like structure to the anode, or the negatively charged electrode on one side of a battery cell.
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