Since there are major advances in battery technology happening now, or perhaps more accurately a growing succession of incremental materials development and use...skipping a discussion of those specific elements but thinking only of continuous improvements in cathode, anode, electrolyte and BMS composition there si improvement in every chemistry and now ones every year.
Thus, it seems to me unlikely that there is a static choice of chemistry, form factor and packaging for Semi, or for that matter, cars and stationary storage. That is the basis of my question. It seems unlikely that, despite history, LFP and NMC are insufficiently descriptive to imagine what will be a good choice in any given application more than about two years ahead. Just imagine all the work now underway to increase silicon content in anode while avoiding all the expansion and stability limitations previously encountered (remember the S90? All love researchers and producers ahem been reducing nickel content.
Without delving into even more detail it seems probably that by 2026 there will be major changes, resulting form a legion of tiny advances, perhaps, but the cumi=ulation will produce new and better solutions for Long Range high load highly durable batteries that probably will have the charging and discharging flexibility we tend to associate with LFP coupled with high discharge and charging rate advantages of NMC.
All of that is the basis of my question of why? I do not see the 2026 ideal suctions as being those of today, nor do I see 500 miles as anything like and end point. If for no other reason than Alice, Lilium etc the search for higher density (power and energy) will end out leading to better and even cheaper solutions.
Then, it is not even far-fetched, considering actual practical evolution of perovskite and others in solar panels:
LONGi announced today that it has set a new world record of 33.9% for the efficiency of crystalline silicon-perovskite tandem solar cells.
www.longi.com
We may not be too far away from being able to top semi-tractors and trailers with actually usable and practical solar power generation to produce longer ranges so batteries need not do the entire job.
We may be sure that Elon Musk and Tesla engineers are limiting their thinking to what is today without planning for the near future. After all Semi scaling must consider all those advances and more.
My real question is: why not plan for the future rather than the past.
My reasoning is based on my 2014 P85D range of 265 miles my 2022 S Plaid range of 396 miles in the same physical space. Has that rate of improvement suddenly stopped?