A Beginner’s Guide to Lithium Rechargeable Batteries

Batteries were once heavy, awkward things, delivering only a limp amount of current for their size and weight. Thankfully, over time, technology has improved, and in 2020, we’re blessed with capable, high-power lithium polymer batteries that can provide all the power your mobile project could possibly need. There are some …read more

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Skin cream ingredient brings stability to aqueous Li-ion battery

Researchers out of the Chinese University of Hong Kong have used a water soluble polymer commonly found in skin cream as a stabilizing agent for an aqueous lithium-ion battery, keeping costs and toxicity low and creating a stable voltage for common usa… Continue reading Skin cream ingredient brings stability to aqueous Li-ion battery

Enevate’s silicon-anode batteries promise ultra-fast EV charging

Battery advances are starting to come thick and fast as massive investment in the segment begins to bear fruit. California’s Enevate has been chipping away at silicon anode technology since 2005, and now the company says it’s managed not only to achiev… Continue reading Enevate’s silicon-anode batteries promise ultra-fast EV charging

Ultrasound-equipped battery prevents potential fires with sound waves

It’s hard to imagine a world without the lithium-ion batteries that power today’s laptops and mobile devices, but the technology does have its limits. One way scientists are working to break a bottleneck of energy density and greatly extend the battery… Continue reading Ultrasound-equipped battery prevents potential fires with sound waves

Battery design breakthrough brings “dream material” into the mix

One way scientists believe they could greatly improve on the performance of today’s lithium-ion batteries is by introducing lithium metal for use as the anode component. Described by researchers at Washington State University (WSU) as a “dream material… Continue reading Battery design breakthrough brings “dream material” into the mix

The Quest To Find A Second Life For Electric Vehicle Batteries

Rechargeable lithium chemistry battery cells found their mass market foothold in the field of personal electronics. The technology has since matured enough to be scaled up (in both physical size and production volume) to electric cars, making long range EVs far more economical than what was possible using earlier batteries. …read more

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Hackaday Links: October 20, 2019

It’s Nobel season again, with announcements of the prizes in literature, economics, medicine, physics, and chemistry going to worthies the world over. The wording of the Nobel citations are usually a vast oversimplification of decades of research and end up being a scientific word salad. But this year’s chemistry Nobel …read more

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Better Battery Management Through Chemistry

The lead-acid rechargeable battery is a not-quite-modern marvel. Super reliable and easy to use, charging it is just a matter of applying a fixed voltage to it and waiting a while; eventually the battery is charged and stays topped off, and that’s it. Their ease is countered by their size, …read more

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Cheaply Charging Cylindrical Cells

For one reason or another, a lot of us have a bunch of 18650 cells sitting around. Whether they’re for flashlights, our fancy new vape pen, remote controlled toys, or something more obscure, there is a need to charge a bunch of lithium ion cells all at once. This project, by [Daren Schwenke], is the way to do it. It’ll charge ten 18650 cells quickly using a stock ATX power supply and less than twenty bucks in Amazon Prime parts.

The idea began when [Daren] realized his desktop lithium ion charger took between 4-6 hours to fully charge two 18650 …read more

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