Talk-Polywell.org

Then we keep our fingers crossed and hope for some specifications for an actual cell. Claiming you have a Li-S battery with commercially relevant performance without giving any numbers is like saying you can do energy fusion without giving a triple product.

Generally speaking: It is nice to see the sheer number of articles on the Li-S technology beeing published. New information everyday from labs all over the world.

With some of the experimental cells showing performance inching towards usefulness. And one or two (maybe three, depending on whether the Oxis company should be counted) companies claiming to have an actual product.

There will never be a Moore´s law of battery. But what, however, do grow exponentially in relation to gravimetric energy density is usefulness. So three times the energy density of Li-ion AND a better resource strain profile should be a substantial improvement of national security.

Good, informative video:

https://www.youtube.com/watch?v=VzNxheA6xcQ&t=2108s

Quoting from the video (starting around the 46:30 mark):

I just want to give you an update because we're, as I mentioned, building our pilot line here ... We are bringing that online this summer, it's really down to the last couple of weeks of getting the final permitting and commissioning of this and then we'll be running full steam ahead with producing lithium sulfur batteries later this summer and transitioning a lot of the development work we've done up to that larger scale ... Now everything's all plugged in and lined up here and ready to go.

So hopefully more news by September.

Doubling their square footage with another 58,000 sq ft.

https://www.siliconvalley.com/2022/08/2 ... en-energy/

Battery tech company opens San Jose manufacturing site, adds jobs
Company aims to produce high-performance materials that can be used in batteries

https://www.siliconvalley.com/2022/11/1 ... en-energy/

Lyten Introduces LytR, a Breakthrough Advanced Polymer Composite, Reduces Weight of Manufactured Plastic Products by up to 50 Percent

https://www.businesswire.com/news/home/ ... 50-Percent

Sounds like they mean business.

200 million dollars raised for production line

https://www.teslarati.com/lithium-sulfu ... 0-million/

Startup Lyten raised $200 million in a Series B round to build up production of its lithium-sulfur battery cells. Stellantis, FedEx, Walbridge Aldinger Company, and Prime Movers Lab were among Lyten’s investors in this round.

Came across this presentation from the 2023 NASA Aerospace Battery Workshop back in November:
https://www.nasa.gov/wp-content/uploads ... anguli.pdf

Roadmap at the bottom:
Tesla 4680 for comparison
232.5 Wh/kg
622.4 Wh/L

2023
• 300 Wh/kg
• 350 Wh/L
• 200 C/3 Cycles

2024 Target
• 350 Wh/kg
• 475 Wh/L
• 300 C/3 Cycles

2026 Target
• 400 Wh/kg
• 600 Wh/L
• 500 C/3 Cycles

2028 Target
• 600 Wh/kg
• 800 Wh/L
• >800 Cycles

"Lyten Achieves Manufacturing Milestone; Now Producing Lithium-Sulfur Batteries At Greater Than 90% Yield"

https://www.businesswire.com/news/home/ ... n-90-Yield

The lithium-sulfur manufacturing performance has been achieved utilizing standard lithium-ion manufacturing equipment and processes. The conversion of lithium-ion equipment to produce lithium-sulfur batteries in Lyten’s pilot facility required 6 weeks and less than 2% of the total capital cost. This confirms Lyten’s ability to rapidly scale by converting existing Li-ion gigafactories to lithium-sulfur with minimal cost and time.

The complete elimination of NMP and ability to tolerate metallic contamination and defects creates a cell that is highly manufacturable. Lower cost production that is better for the environment is a win every way you look at it

Lyten’s lithium-sulfur battery contains no nickel, cobalt, manganese, or graphite in the cathode and anode, enabling an entirely locally sourced and manufactured battery. Lyten expects to achieve 98%+ yields at scale and will begin delivering commercial lithium-sulfur cells for non-EV customers in aerospace and government applications in 2024 from its San Jose pilot production facility.

Interesting though that the article stresses manufacturing advantages, but none of the others that were predicted before, such as faster charge time and extended range. I wonder whether they've backed off on those.

Interesting though that the article stresses manufacturing advantages, but none of the others that were predicted before, such as faster charge time and extended range. I wonder whether they've backed off on those.

If a battery engineer omits data it is for a reason.