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Old 2016-03-07, 22:54   Link #1
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Join Date: Jan 2008
Batteries & Other Energy Storage Technologies.

Spanish company Graphenano claims Graphene
Polymer batteries with triple the energy density of
lithium ion and commercialization by end of 2016:

"Graphenano is a Spanish company based in Yecla (Murcia) and they
have presented their graphene polymer battery that can largely solve
obstacles to the development of the electric car."


Last edited by AnimeFan188; 2019-03-09 at 00:47.
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Old 2016-03-08, 04:20   Link #2
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Location: Athens (GMT+2)
Age: 33
Very interesting, this will help promote electric cars, although power density is not mentioned and should be in the range of 1~3 kW/kg to be at least as competitive as Li-ion batteries (or exceeding 10 kW/kg to compare with supercapacitors and "bacitor" hybrids, especially if they're tackling commonplace devices/handhelds).
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Old 2019-03-09, 00:45   Link #3
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Tesla’s Maxwell Dry Battery and a Five Year Lead on the World:

"Tesla bought Maxwell Technologies for their dry battery technology. Maxwell proved 300
Wh/kg energy density is which 20-40% better than current Tesla batteries. Maxwell has
a path with 15-25% improvement every 2-3 years. This should lead to 500 Wh/kg by
2027. This would give Tesla a 5 year battery lead on the rest of the world."

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Old 2019-12-21, 01:31   Link #4
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Technical breakthrough? Or is IBM just trying to make their stock go up?

IBM Reveals “Staggering” New Battery Tech, Withholds Technical Details:

"IBM lifted the veil this week on a new battery for EVs, consumer devices, and electric
grid storage that it says could be built from minerals and compounds found in seawater.
(By contrast, many present-day batteries must source precious minerals like cobalt from
dangerous and exploitative political regimes.) The battery is also touted as being non-
flammable and able to recharge 80 percent of its capacity in five minutes.

The battery’s specs are, says Donald Sadoway, MIT professor of materials chemistry,
“staggering.” Some details are available in a Dec. 18 blog posted to IBM’s website. Yet,
Sadoway adds, lacking any substantive data on the device, he has “no basis with which
to be able to confirm or deny” the company’s claims."

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Old 2019-12-21, 23:47   Link #5
kari-no-sugata II
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Join Date: Oct 2015
Overblown battery claims are a dime a dozen. Obvious question would be what's the time to market. Many experts reckon we'll see solid state batteries in about 5 years (in actual shipping products), so even if this "breakthrough" is actual real and meaningful against today's technology, there's no guarantee it'll still be better by the time it ships. A common problem.

PS Seems to me that the main limitation on fast charging today is more like how much juice you can supply the car

PPS All manufactures are already working to reduce cobalt, with Tesla reckoned to be well ahead of the pack (might be cobalt free soon, apparently)
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Old 2020-01-15, 23:18   Link #6
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Long-lasting Lithium-Sulfur Battery Promises to Double EV Range:

"By designing a novel robust cathode structure, researchers have now made a
lithium-sulfur battery that can be recharged several hundred times. The cells have an
energy capacity four times that of lithium-ion, which typically holds 150 to 200 watt-
hours per kilogram (Wh/kg). If translatable to commercial devices, it could mean a
battery that powers a phone for five days without needing to recharge, or quadruples
the range of electric cars.

That’s unlikely to happen, since energy capacity drops when cells are strung together
into battery packs. But the team still expects a “twofold increase at battery pack level
when [the new battery is] introduced to the market,” says Mahdokht Shaibani, a
mechanical and aerospace engineer at Australia’s Monash University who led the work
published recently in the journal Science Advances."

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Old 2020-09-05, 20:44   Link #7
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Too good to be true?

Nano-diamond self-charging batteries could disrupt energy as we know it:

"California company NDB says its nano-diamond batteries will absolutely upend the
energy equation, acting like tiny nuclear generators. They will blow any energy
density comparison out of the water, lasting anywhere from a decade to 28,000 years
without ever needing a charge. They will offer higher power density than lithium-ion.
They will be nigh-on indestructible and totally safe in an electric car crash. And in
some applications, like electric cars, they stand to be considerably cheaper than
current lithium-ion packs despite their huge advantages.

The heart of each cell is a small piece of recycled nuclear waste. NDB uses graphite
nuclear reactor parts that have absorbed radiation from nuclear fuel rods and have
themselves become radioactive. Untreated, it's high-grade nuclear waste: dangerous,
difficult and expensive to store, with a very long half-life.

This graphite is rich in the carbon-14 radioisotope, which undergoes beta decay into
nitrogen, releasing an anti-neutrino and a beta decay electron in the process. NDB
takes this graphite, purifies it and uses it to create tiny carbon-14 diamonds. The
diamond structure acts as a semiconductor and heat sink, collecting the charge and
transporting it out. Completely encasing the radioactive carbon-14 diamond is a layer
of cheap, non-radioactive, lab-created carbon-12 diamond, which contains the
energetic particles, prevents radiation leaks and acts as a super-hard protective and
tamper-proof layer.

To create a battery cell, several layers of this nano-diamond material are stacked up
and stored with a tiny integrated circuit board and a small supercapacitor to collect,
store and instantly distribute the charge. NDB says it'll conform to any shape or
standard, including AA, AAA, 18650, 2170 or all manner of custom sizes.

And so what you get is a tiny miniature power generator in the shape of a battery that
never needs charging – and that NDB says will be cost-competitive with, and
sometimes significantly less expensive than – current lithium batteries. That equation
is helped along by the fact that some of the suppliers of the original nuclear waste will
pay NDB to take it off their hands.

Radiation levels from a cell, NDB tells us, will be less than the radiation levels
produced by the human body itself, making it totally safe for use in a variety of
applications. At the small scale, these could include things like pacemaker batteries
and other electronic implants, where their long lifespan will save the wearer from
replacement surgeries. They could also be placed directly onto circuit boards,
delivering power for the lifespan of a device."

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Old 2020-09-05, 23:21   Link #8
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Age: 36
Anything that is said to be able to disrupt an entire industry is pretty much doomed to never get far. Too much lobbying and too many big players would work to stop it.
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Old 2020-09-06, 10:24   Link #9
kari-no-sugata II
Senior Member
Join Date: Oct 2015
Problems with any new tech: does it even work as promised in practice? How cost competitive is it? What does it cost in volume? How easily can volume be improved? Any legal/safety concerns?

Good luck to them.
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Old 2022-05-26, 06:28   Link #10
Psyco Diver
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Join Date: Feb 2014
Turning nuclear waste into batteries
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