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Old 10-23-2018, 05:10 PM   #11 (permalink)
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Ok because the other articles I saw made it seem as if the electrolyte was a solid chunk of glass.
Glad I wasn't the only one who was thinking that.
Somethings always get lost in translation going from the engineer or physicist to the guy with an English major writing the article.
This is why it didn't make any sense to me in the conventional form.

Holding the electrolyte in a glass media sounds kind of like the concept of an absorbed glass mat lead acid battery.
The way the battery develops more capacity over cycling reminds me of the process of "forming" a lead acid battery developed by Gaston Plante.

Does the glass battery require any special elemets like cobalt or rare earths?

How much abuse can they take? As far as charging and discharging?

How long will they will last?

How can we build one, or 24?

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Old 10-23-2018, 05:29 PM   #12 (permalink)
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Ok, next question is how does capacity increase by 6x as the battery is cycled? Most batteries degrade with use, but considering there is no dendrite formation I would expect the cell to have a very flat charge/discharge capacity, but certainly not increase.
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Old 10-23-2018, 06:50 PM   #13 (permalink)
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-No cobalt, no rare things. That's why it will be (in theory) much cheaper, specially the ones made with sodium.

-In early 2017 the articles said 1.500 cycles, but today they say 23.000. I think in the first articles they hadn't reached much cycles of test. It will charge in minutes rather than hours.
Now lawyers will count the battrey in divorce cases, and you will be save the battery for future wifes.

-With 23.000 cycles it will last almost a lifetime.. Or last as long you don't destroy it in a car crash. ;-)
It works even in minus 20 celsius degree. No fire hazard. No need of expensible chargers devices (I think).



-The capacity increase, according the articles and interviews of Maria Helena Braga, was due a gradual polarization of electrolyte (along cycles) acting as supercapacitor. But one skeptic scientist made a critic and said it could only became so much more powerful because lab batteries use to have a much higher amount of electrolyte compared to active elements of battery itself.

-That's why one question of mine will be about electrolyte amount in her battery, or if batteries with different percentages of electrolite have the same increase capacity curve.
Braga made coin batteries and one jelly roll battery. If the increase curve it's similar in the two types... In one article she said that had similar data drom different batteries in many different instruments, including a glove box (sealed box with acsses ony by a tick rubber glove build in the box's structure).

Glove box avoid contaminations from evironment :



-They are still in pattent stages, so they will not reveal the full secret to we built one. I presume, my guess, that when the patent get ready, they will be able to send samples to the skeptic scientists test themselves.

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Old 10-23-2018, 07:08 PM   #14 (permalink)
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Quote:
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-No cobalt, no rare things. That's why it will be (in theory) much cheaper, specially the ones made with sodium.
Tesla already has cobalt down to 3% in their batteries, so it isn't a huge expense for them.

Quote:
Is that real? If so, it's worth the crash to be proven invincible.

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-The capacity increase, according the articles and interviews of Maria Helena Braga, was due a gradual polarization of electrolyte (along cycles) acting as supercapacitor. B
That doesn't sound right at all. Supercapacitors work by storing static electricity on an enormous surface area. Their capacity doesn't increase after many cycles, at least not by 6x. Furthermore, they store a fraction of the energy that chemicals can.

I need to have the principle function of the battery explained in layman's terms. There are only 2 ways that it could possibly store energy; as potential chemical reactants, or as a static charge.
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Old 10-23-2018, 07:18 PM   #15 (permalink)
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Tesla said their new battery was just 50% higher in energy density than the best comercial on market. Maybe this announce, of a model 50% better made Braga&Goodenough team change the claim to 2x (it was 3x in earlier reports) times more dense than any other lithium ion battery, since now it probably compares to Tesla.
But Tesla charger device it's about 50% the price of their battery, if I remamber well a interview of a scientist.

Your point it's interesting. I can't explain it. That's why I will send the doubts to her.

I imagined it was you in the crash... ;-)

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Tesla already has cobalt down to 3% in their batteries, so it isn't a huge expense for them.



Is that real? If so, it's worth the crash to be proven invincible.



That doesn't sound right at all. Supercapacitors work by storing static electricity on an enormous surface area. Their capacity doesn't increase after many cycles, at least not by 6x. Furthermore, they store a fraction of the energy that chemicals can.

I need to have the principle function of the battery explained in layman's terms. There are only 2 ways that it could possibly store energy; as potential chemical reactants, or as a static charge.

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Old 10-23-2018, 07:24 PM   #16 (permalink)
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Originally Posted by All Darc View Post
Tesla said their new battery was jsut 50% higher in energy density than the comercial on market. Maybe this announce, of a model 50% better made Braga Goodenough team change the calim to 2x times more dense than any other lithium ion battery, since now it compares to Tesla.
But Tesla charger device it's about 50% the price of their battery, if I remamber well a interview of a scientist.

Your point it's interesting. I can't explain it. That's why I will send the doubts to her.
Even if it had identical energy density as a Tesla battery, but could be rapidly recharged and not suffer degradation, that's all the industry needs.

Who cares what the range of an EV is as long as it can go about 200 miles and be rapidly recharged without damaging it. That actually solves the biggest problems. Cost being another big problem. $10,000 for what is essentially a gas tank is a hard pill to swallow.
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Old 10-23-2018, 07:48 PM   #17 (permalink)
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Exactly

But for electric airplane and large drones (air taxi) we would need 10x the density of the actual (not Tesla) Li-ion batteries.

With 10x density, and electric motors about 3x or 4x more efficient than gasoline/herosene fuel engines, the electric planes would be able to fly nearly as long.

Nasa also found that with many small electric propeller anlong a wings, they need much less energy to take off than with two large propellers.

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Even if it had identical energy density as a Tesla battery, but could be rapidly recharged and not suffer degradation, that's all the industry needs.

Who cares what the range of an EV is as long as it can go about 200 miles and be rapidly recharged without damaging it. That actually solves the biggest problems. Cost being another big problem. $10,000 for what is essentially a gas tank is a hard pill to swallow.

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Old 10-23-2018, 08:01 PM   #18 (permalink)
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Nasa also found that with many small electric propeller anlong a wings, they need much less energy to take off than with two large propellers.
I'd be curious to read that paper. More propellers are usually inefficient. Heck, even more propeller blades tend to be less efficient. The most efficient helicopters use 2 blades.

This is a big reason why drones aren't efficient. That, and they aren't aerodynamic in forward flight.
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Old 10-23-2018, 08:08 PM   #19 (permalink)
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More small propellers, very small, generates more lift in wings like that :






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Old 10-23-2018, 09:14 PM   #20 (permalink)
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If these batteries can charge so fast what's the upper temperature limit?
Because it's going to produce heat.

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