HitchHiker71
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CATL, the worlds largest producer of Lithium batteries has been promising an update on Sodium Batteries this spring. CATL made some preliminary announcements in 2021 and is promising and update. Perhaps there will be an update at the auto show next week. Several smaller battery manufactures are already in full scale production of sodium batteries to be used in new inexpensive vehicles for sale in China. Sodium batteries are also used in data centers for battery backup. Density is not an issue in data centers, but their stability and lack of flammability make them the go to battery backup.
China's CATL unveils sodium-ion battery - a first for a major car battery maker
China's CATL (300750.SZ) on Thursday became the first major automotive battery maker to unveil a sodium-ion battery, saying it planned to set up a supply chain for the new technology in 2023.www.reuters.com
Just remember that the Chinese market for BEVs is a good bit different than the US market. Range anxiety isn't an issue over in China like it is here in the US. Over here, even with LI-NMC high nickel batteries we still have range anxiety issues that demand larger high energy density packs. With less energy density, the range of these newer Chinese subcompact models is likely going to be nowhere close to the ranges that most American BEVs are offering today. At most, we'll see sodium batteries bringing potential equivalence to LFP battery packs (which also have lower energy density than LI-NMC packs), like the Tesla M3 SR RWD models that use LFP batteries from CATL today, which is why this model won't be eligible for the full tax credit come 4/18/2023, because of the requirements in the IRA laws to source both materials and perform pack assembly here in the US, or from US trade friendly countries (those with existing trade agreements). Tesla's website already indicates that come 4/18/2023 the M3 SR RWD will only be eligible for 50% of the EV tax credit due to CATL LFP battery pack usage. US manufacturers therefore likely aren't going to use China made CATL sodium battery packs solely because doing so will disqualify the vehicles from receiving 50% of the EV tax credit. Point being, sodium batteries being built in China might be good for China, but I wouldn't be waiting on buying a BEV here in the US based on these packs coming to or from the Chinese market - as our current IRA law likely isn't going to change with respect to China any time soon.
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