Bad journalism

What’s the outcome? For one, a significantly higher charge density. While many current lithium-ion batteries have power densities in the area of 270 watt-hours/kilogram, a pouch cell based on Cuberg’s technology hit 380 Wh/kg, a gain of 40 percent. When an independent lab placed the battery on a cycle of one-hour discharges and two-hour charging, it found the battery took over 670 cycles for its capacity to drop to 80 percent of its original. For comparison, many lithium-ion batteries target a 500-cycle life span.…

While I believe we will see some massive improvements in battery chemistry, the way this article is written would lead the nieve to believe that this battery has the longevity of a cell phone battery or a Tesla. The longevity is given in the article, it is from 30 to 50 percent less than current common lithium ion batteries and only a 100 percent greater than telecom back up lead acid batteries.

Finally, there are no dollar/kilowatt hour figures.

At the very end of the article the writer points out that the first commercial focus will be aviation. This makes sense as light weight, extreme reliability with high costs can be marketed in aviation.

It is my expectation that 1000 to 2000 cycles will be needed for common applications. For example, if you recharge your car twice a week, then a 1000 cycle battery would work for 10 years. If you charge your phone daily, a 1000 cycle battery will keep you going almost 3 years.



Did you see this? Making the anode from tree lignin. Don’t know how that will impact performance or storage density.…