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A Staggering 19x Energy Jump in Capacitors May Be the Beginning of the End for Batteries (www.popularmechanics.com)

submitted 6 months ago by [email protected] to c/[email protected]

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[–] [email protected] 77 points 6 months ago* (last edited 6 months ago) (22 children)

There have been constant news articles coming out over the past few years claiming the next big thing in supercapacitor and battery technologies. Very few actually turn out to work practically.

The most exciting things to happen in the last few years (from an average citizen's perspective) are the wider availability of sodium ion batteries (I believe some power tools ship with them now?), the continued testing of liquid flow batteries (endless trials starting with the claim that they might be more economic) and the reduction in costs of lithium-ion solid state batteries (probably due to the economics of electric car demand).

FWIW the distinction between capacitors and batteries gets blurred in the supercapacitor realm. Many of the items sold or researched are blends of chemical ("battery") and electrostatic ("capacitor") energy storage. The headline of this particular pushes the misconception that these concepts can't mix.

My university login no longer works so I can't get a copy of the paper itself :( But from the abstract it looks first stage, far from getting excited about:

This precise control over relaxation time holds promise for a wide array of applications and has the potential to accelerate the development of highly efficient energy storage systems.

"holds promise" and "has the potential" are not miscible with "May Be the Beginning of the End for Batteries".

[–] [email protected] 2 points 6 months ago

The article is listed on ResearchGate.

For anyone looking for an alternative to Sci-Hub (the GOAT), you can make a free account on RG and send a request to the authors for a copy of their paper (about two clicks to perform).

Most researchers will send you a copy within a day, maybe two. If you copy the title or the DOI link into a search with "ResearchGate" it usually shows up in most search engines.

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