‘Researchers at Tesla also significantly altered the chemistry...

‘Researchers at Tesla also significantly altered the chemistry of their electrodes to boost performance. Tesla is now one of several manufacturers producing silicon-rich anodes, which are meant to supplant the more common graphite anodes used in lithium-ion batteries today. When a lithium-ion battery is charging, lithium ions flow to the anode, displacing electrons and creating an electric charge. Compared to graphite, silicon can absorb a lot more ions.“Silicon can store roughly 10 times the number of lithium atoms as graphite, which gives silicon-containing batteries 20 to 40 percent higher energy density’

Is Tesla really interested in Syrahs graphite? By the sound of it, they are moving away from it

https://www.nanograf.com/media/j3ar87nuy495ktook6i2rv3h410o6p#:~:text=Tesla%20is%20now%20one%20of,in%20lithium%2Dion%20batteries%20today.