NASA is researching solid state batteries

[DanCar]

https://www.nasa.gov/sites/default/files/atoms/files/sabers_cas_fact_sheet_508.pdf

Program name: SABERS
Li-metal anode
No details on solid electrolyte
Sulfur / Selenium cathode
Use of holey graphene suggests this won't be cheap.

Performance Target: 500 Wh/kg battery
Tesla’s 4680 batteries in the Model Y boast sub-300 Wh/kg energy density

Solid-State NASA Battery Beats The Model Y 4680 Pack at Energy Density by Stacking all Cells in One Case - Batteries News

Solid-state NASA battery beats the Model Y 4680 pack at energy density by stacking all cells in one case. NASA has achieved a break

batteriesnews.com

 

[Krash]

https://eepower.com/market-insights/nasas-sulfur-selenium-solid-state-battery-promising-for-electric-aviation/

Still reporting 500 Wh/kg. Some reporting recent advances in charging speed.

 

[meomyo]

 

[DerbyDave]

Toyota is working on it, but says it will not be practical or useful in cars for at least 5 years, but they are trying.

Toyota nears mass production of solid-state batteries

World’s biggest carmaker says stacking speed needed for full manufacturing is ‘almost there’

www.ft.com

 

[DrChaos]

https://www.nasa.gov/sites/default/files/atoms/files/sabers_cas_fact_sheet_508.pdf

Program name: SABERS
Li-metal anode
No details on solid electrolyte
Sulfur / Selenium cathode
Use of holey graphene suggests this won't be cheap.

Performance Target: 500 Wh/kg battery
Tesla’s 4680 batteries in the Model Y boast sub-300 Wh/kg energy density

Solid-State NASA Battery Beats The Model Y 4680 Pack at Energy Density by Stacking all Cells in One Case - Batteries News

Solid-state NASA battery beats the Model Y 4680 pack at energy density by stacking all cells in one case. NASA has achieved a break

batteriesnews.com

Their interest is aviation of course, not automotive, and will accept a much higher price and lower volume.