Category Archives: Lithium-ion battery

Ammo Can Battery; 50 Ah LiFePO4 Clad in Army Green

For the price of a mid-range Android phone, [Kenneth Finnegan] turned a 50 caliber ammo can into a 50 amp-hour portable power supply. The battery pack uses four 3.5 V LiFePO4 cells wired in series to achieve a nominal 12 V supply that stands in for a traditional lead-acid …read more

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Posted in ammo can, ammo can power box, battery management system, bms, LiFePO4, Lithium-ion battery, misc hacks | Leave a comment

Hybrid Supercapacitors are — well — Super

Kurt.energy is promoting a new line of hybrid supercapacitors. By itself, that wouldn’t be very newsworthy, but the company claims these graphene-based supercapacitors merge the best features of both supercapacitors and lithium-ion batteries. Based on technology from a company called Shenzhen Toomen New Energy, the capacitors are optimized for either …read more

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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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Posted in battery, car hacks, economies of scale, electrical safety, lithium ion, lithium polymer battery, Lithium-ion battery, reuse, transportation hacks | Leave a comment

A Safer, Self-Healing Polymer Battery

Lithium-ion batteries are notorious for spontaneously combusting, with seemingly so many ways that it can be triggered. While they are a compact and relatively affordable rechargeable battery for hobbyists, damage to the batteries can be dangerous and lead to fires.

Several engineers from the University of Illinois have developed a …read more

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Posted in batteries, chemistry hacks, Lithium-ion battery, polymers, research, science | Leave a comment

Lessons in Li-Ion Safety

If you came here from an internet search because your battery just blew up and you don’t know how to put out the fire, then use a regular fire extinguisher if it’s plugged in to an outlet, or a fire extinguisher or water if it is not plugged in. Get …read more

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Posted in battery, battery charging, battery monitor, battery pack, Chemistry, chemistry hacks, Engineering, Featured, fire safety, Interest, lithium, lithium battery, lithium cell, Lithium-ion battery, safety, workshop safety | Leave a comment

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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Posted in battery, battery analysis, battery life, battery technology, chemistry hacks, Engineering, Featured, lipo, lipo battery, lithium, lithium battery, lithium cell, lithium ion, lithium polymer, Lithium-ion battery, Original Art, science | Leave a comment

Rescuing A Proprietary Battery Pack With A Cell From A Camera

If you have an older handheld battery-powered device, you may be fighting a diminishing battery capacity as its lithium-ion cells reach the end of their life. And if you are like [Foxx D’Gamma], whose device is an Alinco DJ-C7 handheld transceiver, you face the complete lack of availability of replacement battery packs. All is not lost though, because as he explains in the video below the break, he noticed that a digital camera battery uses a very similar-sized cell, and was able to graft the camera battery into the shell of the Alinco pack.

Cracking open the Alinco pack, he …read more

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Posted in Lithium-ion battery, radio hacks | Leave a comment

Solid State Battery from the Man Who Brought Us Lithium Ion

Who is [John Goodenough]? He’s 94, so he’s been around long enough that you ought to know him. He was one of the co-inventors of the lithium-ion battery. Think about how much that battery has changed electronics. [Goodenough] along with [Maria Helena Braga] may have come up with that battery’s successor: the solid state battery. There’s a paper available that is free, but requires registration. If you don’t want to register, you can read the news release from the University of Texas with no trouble.

Keywords used to describe the new battery are low-cost, noncombustible, long cycle life, high energy …read more

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Posted in john goodenough, Lithium-ion battery, Maria Helena Braga, news, solid-state battery, university of texas | Leave a comment