This is good news - and a key advantage for Polestar $PSNY compared to many other EV start-ups without a large automotive giant/holding group as a backer:

Geely Holding will begin pilot deployment of solid-state batteries across its brands in 2027, following real-world validation. The energy density of these packs will reach 500 Wh/kg, allowing BEVs to achieve a range comparable to diesel.  

Following BYD’s and CATL’s statements regarding solid-state battery trial production scheduled for 2027, Geely also provided an official statement about its SSB timeline. According to the statement, solid-state batteries are coming soon to vehicles across the Geely Holding ecosystem. It includes Geely, Zeekr, Lynk & Co, Volvo, Polestar, Lotus, Smart, Proton, Farizon, and other brands.

The Geely’s solid-state battery will offer a few energy density variants. The top-tier pack will feature an energy density of 500 Wh/kg. It sounds from the text that Geely is talking about the whole battery, which means the cell’s energy density will be even higher. The currently produced “Golden Brick” liquid batteries from Geely boast a cell-level energy density of around 250 Wh/kg.

Source: https://carnewschina.com/2026/08/18/geely-to-start-pilot-deployment-of-500-wh-kg-solid-state-batteries/

Anyone seen this? https://www.motor1.com/news/805129/polestar-lawsuit-adds-a-twist/

quite serious allegations. Though, if true, would also explain why Volvo could stay in US but Polestar not. This ruling puzzled me, but looking at it from the point that Polestar wanted to leave US market and now finally find a way to do so without paying any fines and blaming the new laws, puts a different perspective to the story.

for the context, Polestar is sued for using new Connected Vehicle Rule as a way to leave US market without fulfilling their obligations to dealers etc., even though they could have had the chance to get the same exception as Volvo, but it was Polestar's own decision not to go for it.