Researcher of new battery accepted my invitation for interview in this website.

[All Darc]

Lithium carbom dioxide battery get advances :

https://www.youtube.com/watch?v=3SSNw2WvAdQ

[All Darc]

The solid state battery (Goodenough & Braga) is getting close to became reality :


First a partnership with Hydro-Québec :

https://www.greencarcongress.com/202...200131-hq.html
https://insideevs.com/news/396468/hy...state-battery/


And now Mercedes-Benz teams up with them:

https://www.pv-magazine.com/2020/02/...y-development/

[redpoint5]

Sounds like all the other claims of a breakthrough. It's never "we've figured out how to increase capacity by 1.3x".

There were no details on how that is achievable, so the video told us nothing except to wait and see if anything ever happens.

My estimation is that batteries need to get twice as good as they currently are for them to really knock ICE off the vehicle throne.

[All Darc]

If I got it right, they will start (try) to create manufacture technology for mass scale production of the "glass" electrolyte, not the battery itself yet.
The electrolyte can be used in basic battery architecture, I think. The new battery itself (Goodenough&Braga's architecture) have it's own difficults for scale-up.

Even with basic architecture it's already a great thing, since would have more enegry density (2x or 3x), use no cobalt and have no fire hazard.

Lithium ion it's the problem of actual battery, since it reduces capability. Using the solid state electrolyte the capacity more than double since it uses lithium metal and not lithium ion.

Originally Posted by redpoint5

Sounds like all the other claims of a breakthrough. It's never "we've figured out how to increase capacity by 1.3x".

There were no details on how that is achievable, so the video told us nothing except to wait and see if anything ever happens.

My estimation is that batteries need to get twice as good as they currently are for them to really knock ICE off the vehicle throne.

[oil pan 4]

A rechargeable "energizer lithium battery" would be pretty impressive.

[All Darc]

I don't know about Energizer, but I believe non-rechargeable Lithium batteries have more than double the energy than rechargeable Li-Ion batteries, since it non rechargeable ones uses lithium metal.

Originally Posted by oil pan 4

A rechargeable "energizer lithium battery" would be pretty impressive.

[oil pan 4]

Originally Posted by All Darc

I don't know about Energizer, but I believe non-rechargeable Lithium batteries have more than double the energy than rechargeable Li-Ion batteries, since it non rechargeable ones uses lithium metal.

Yeah making secondary cells as energy dense as primary cells would be a pretty good advancement.

[All Darc]

I had a brief chat with Maria Helena Braga today. She was kind, as always, but could not tell me details, as it's confidential, about the energy density of this batteries that this partnership will try to produce using the Braga's electrolyte.

She told me that these batteries, using the solid electrolyte would have much less need of Control. Controls means the sysem to keep battery pack stable for charge, discharge, and in case very large packs, cooled to avoid overheat.
Remambering Tesla have a Control system, for the battery pack, very expensive, rivaling the cost of the battery itself.

[redpoint5]

As I've mentioned elsewhere, if batteries can get twice as good as they are now, ICE will begin to get a run for their money. By twice as good, I mean either the same performance for half the price, or twice the value for the same price.

The need of batteries to have environmental controls is a big negative against them compared to gasoline. Gasoline just needs vapor recovery, and that's only to reduce pollution, not because the vehicle relies on it to function.

[All Darc]

Electric cars still need mass production of electric motors, to became affordable, since high efficience electric motors costs are high. But once we get good batteries (for price and energy sensity) it's a matter of time to mass production make electric motors cheap and electric cars get more affordable than standart cars.

Electrec cars don't need elaborated engine's gear box, distribution, and many other systems of combustion engine cars.

Like I said, Tesla requires expensive control system, but the Braga battery will require much less.

Originally Posted by redpoint5

As I've mentioned elsewhere, if batteries can get twice as good as they are now, ICE will begin to get a run for their money. By twice as good, I mean either the same performance for half the price, or twice the value for the same price.

The need of batteries to have environmental controls is a big negative against them compared to gasoline. Gasoline just needs vapor recovery, and that's only to reduce pollution, not because the vehicle relies on it to function.