. Tesla’s million-mile battery:
A newly issued patent from Tesla aims to bring the company’s idea for a one-million-mile battery to life by using several electrolyte additives to improve the longevity and performance of its lithium-ion cells. Tesla tendered the patent for “Dioxazolones and Nitrile Sulfites as Electrolyte Additives for Lithium-Ion Batteries,” focused on improving the company’s rechargeable battery operations by adjusting the cells’ chemistry.
The patent claims that the extension of electrolyte additives, like lithium salt, can drastically advance the longevity and performance of battery systems when coupled with a non-aqueous solution. A non-aqueous solution does not hold water as the solvent, but rather another liquid.
The patent states:
Electrolyte additives have been shown to be operative and increase the lifetime and performance of Li-ion-based batteries… To further progress the adoption of electric vehicles and grid energy storage applications, it is desirable to develop lithium-ion cell chemistries that offer longer lifetimes at high temperatures and high cell voltages, without significantly increasing cost. The introduction of sacrificial electrolyte additives on the order of a few weight percent is a practical method to form protective solid-electrolyte interphase (SEI) layers that limit electrolyte decomposition during cell storage and operation. In recent years, significant efforts have yielded a large number of such additives that may be used to improve cell performance for various applications. Examples are vinylene carbonate (VC), fluoroethylene carbonate (FEC), prop-l-ene-l,3-sultone (PES), ethylene sulfate (1, 3, 2-dioxathiolane-2, 2-dioxide, DTD), and lithium difluorophosphate (LFO)"
This is the patent:
https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2019241869
Although this is an electrolyte additives patent, i looked @ all the chemistries of #4-11 to see if for any reason, Nano One has used or even mentioned any of these additives in it's cathode or electrolyte processs.
Not a single one is mentioned from Nano One.
Notice at the bottom of the Tesla patent is battery testing results.
Compare it to Nano Ones from November 24, 2020.
Nano had far better results:
https://nanoone.ca/news/news-releases/update-on-nano-ones-breakthrough-in-battery-longevity/
https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2019241869
This Tesla 1m mile battery is based on the same chemistry & pouch cell, as Nano's NMC.
February 21, 2023:
"The parties jointly evaluated Nano One’s NMC cathode materials for use in automotive lithium-ion batteries and demonstrated SIGNIFICANT potential to reduce environmental footprint, capital costs and operating costs while meeting performance criteria."
Nano's patent shows a 1st ever cathode/electrolyte stable synergy.
If you believe the OEM is Tesla, the latest news alone says Nano significantly outperformed Tesla's 1m mile technology.