Lithium-ion Batteries can be Made Safer and Longer Lasting

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The new coating, called PEDOT, covers every individual particle of the cathode in a lithium-ion battery, extending its useful life
The new coating, called PEDOT, covers every individual particle of the cathode in a lithium-ion battery, extending its useful life
Argonne National Laboratory

Despite seemingly-endless advances in experimental battery designs, good old lithium-ion batteries continue to be the frontrunner. There’s still plenty of room for improvement though, and now researchers have identified a new cathode coating that could make them safer and longer lasting.

Ubiquitous as they may be, lithium-ion batteries are known to have some problems. One such issue is that the cathode in these batteries can generate excess oxygen, which reacts with the electrolyte. That forms a film on the cathode surface, which reduces the amount of energy that can be passed between the two, in turn reducing the performance of the whole battery.
To counter that problem, the cathodes in most lithium-ion batteries have special coatings that reduce the effect. Unfortunately, this slows down lithium ions passing in and out, decreasing efficiency. Plus, because the coating doesn’t cover the entire surface, the degradation can still occur when the battery is operating at a higher temperature or voltage.

For the new study, researchers at Argonne National Laboratory and Hong Kong University of Science and Technology (HKUST) investigated alternative coatings, to help these batteries last longer.

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About the Common Constitutionalist

Brent, aka The Common Constitutionalist, is a Constitutional Conservative, and advocates for first principles, founders original intent and enemy of progressives. He is former Navy, Martial Arts expert. As well as publisher of the Common Constitutionalist blog, he also is a contributing writer for Political Outcast, Godfather Politics, Minute Men News (Liberty Alliance), Freedom Outpost, the Daily Caller, Vision To America and Free Republic. He also writes an exclusive weekly column for World Net Daily (WND).