by letharion
1 subcomments
- What I wanted to know from the article:
The CATL Naxtra sodium-ion battery will debut in the Changan Nevo A06 sedan, delivering an estimated range of around 400 kilometers (249 miles) on the China Light-Duty Test Cycle.
and It delivers 175 watt-hours per kilogram of energy density, which is lower than nickel-rich chemistries but roughly on par with LFP
- Retaining 90% range at -40°C sounds like a game changer, almost too good to be true. I'm definitely going to need to see some third-party real-world range tests to validate those claims before getting too excited.
- Remember those Donut/Verge solid state batteries, which were supposed to ship in Q1 2026? That just slipped to the end of 2026 or 2027.[1] Supposedly they're delayed by needing "certification" for their motorcycle.
(The motorcycle is real, and has been out for years. This is just a battery upgrade.)
[1] https://insideevs.com/news/786388/verge-motorcycles-donut-la...
- Less bloated site:
https://carnewschina.com/2026/01/22/catl-unveils-worlds-firs...
by anthonyIPH
4 subcomments
- Do any US automakers have anything in the pipes using Sodium-Ion batteries? A quick search turned up info on a plant mass producing the batteries in Holland, MI but no mention of when they would be available. As someone in the market for an EV within the next year or 2, and also currently enduring a month long stretch of temps in the single digits and below, cold weather performance has suddenly become a huge consideration.
by dtgriscom
5 subcomments
- Question: if a LiIon battery can't deliver as much energy when cold, where does the lost energy go? Is it just unavailable, and becomes available again when warmed up? Is discharge less efficient, so the energy is wasted? Or does charging stop early when cold, so there's less to be discharged in the first place?
- If this is “on par” with LFP energy density, I’m not sure there’s any need for LFP now. Sodium ion seems to thoroughly beat it in every other metric.
- “As always, we’ll have to wait for independent testing for real-world results.”
interested in hot desert weather performance which often gets lost in the averages.
- More interesting is that they're claiming 248 miles (400km) on a 45kWh battery[0]. That calculates out to 5.5 miles/kWh, whereas the most efficient Tesla 3 right now only claims 4.5 miles/kWh - and even that is a very optimistic estimate (most people can't get 270 miles out of their 60kWh Tesla 3 standard range models) [1]
[0] https://cdn.motor1.com/images/custom/worlds-first-mass-produ...
[1] https://insideevs.com/news/719013/2024-tesla-model3-epa-rang...
- This is awesome and I'm really happy to see this progress. Landing a new chemistry in a production car THIS YEAR is some crazy velocity, especially compared to where other Na-Ion batteries are in the development cycle elsewhere. Is anyone else even close to having a car on the road with their cells?
The reason this is so exciting for me personally is for stationary energy. Because the raw materials are so abundant and have good cold weather performance, both grid and home level energy storage costs should come down significantly as this is commercialized further.
by dyauspitr
1 subcomments
- This with 500-600 miles range means the end of ICE. 250 is still too little since that will realistically be closer to 150-160 if you’re consistently driving 74-80 mph.
- Dumb question but I’ve always wondered if we could make a giant reusable “hand warmer” type chemistry around the battery and use that to get it going in cold environments.
Looking into it more. Maybe something like supersaturated solution of sodium acetate (plus water) in a sealed pouch with a metal disc. Bending the disc triggers crystallization, releasing stored heat (around 130–140°F for 20–60 minutes). Boil them to reset.
So you could boil and reset them during charging and click them off if needed in cold weather.
by smiley1437
3 subcomments
- Out the gate, sodium ion advantages are so significant that unless there is some surprise show-stopper it will likely become the dominant energy storage medium.
Crustal abundance up to 1000x that of lithium - pretty much every nation has effectively unlimited supply, it's no longer a barrier or a geographically limited resource like lithium.
No significant damage going down to 0V, can even be stored at 0V - much safer than lithium which gets excitable once out of its prefered voltage range.
Cold weather performance down to -30C - northern latitude users don't have as much range anxiety in the winter.
Basically, the only problem I see is that companies that have made significant long-term investments in lithium could take a big hit. Countries that banked on their lithium reserves as a key future resource for will have to adjust their strategy.
Lithium batteries will likely still have a place in the high performance realm but but for the majority of run-of-the-mill applications - everything from customer electronics to EVs to offgrid storage - it's hard to see how sodium-ion wouldn't quickly replace it.
by cyanydeez
1 subcomments
- Two things EVs need to be everywhere for me. Range and STOP MAKING UGLY SUVs.
by lightedman
1 subcomments
- I suspect we will be finding this technology being used a fair bit in aerospace tech like satellites to compliment the onboard solar, given the low-temp operational capability.
- I don't understand what these headlines are really about, given that 75% of the range loss in my EV is from CABIN climate control.
- Incrementally better. But not a monster.
by minneapoliced
1 subcomments
- [flagged]
- Nothing in the article really substantiates the headline (currently "The First Sodium-Ion Battery EV IS a Winter Range Monster").
The EV described in the article has a standardized range of 250 miles. This isn't a range monster in any condition. There is some gesturing that Sodium batteries don't require as much active heating in cold conditions. But nothing is quantified.
As usual with sci-tech broadly and batteries specifically: it's exciting that sodium batteries are coming to market; we can be optimistic that maybe in the future they will provide lots of range, or be less expensive, or maybe less flammable than today's lithium batteries. But the marketing hype is running miles ahead of reality.
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