{"id":9346,"date":"2026-06-02T10:00:04","date_gmt":"2026-06-02T14:00:04","guid":{"rendered":"https:\/\/www.autonocion.com\/us\/?p=9346"},"modified":"2026-06-02T06:18:08","modified_gmt":"2026-06-02T10:18:08","slug":"catl-solid-state-battery-two-chemistries","status":"publish","type":"post","link":"https:\/\/www.autonocion.com\/us\/catl-solid-state-battery-two-chemistries\/","title":{"rendered":"While the Whole Industry Keeps Swearing Solid-State Batteries Are Just Around the Corner, the World’s Biggest Battery Maker Quietly Bet on Something Sitting in Your Kitchen Salt Shaker Instead"},"content":{"rendered":"

Everyone’s been talking about solid-state batteries<\/a> for years now, treating them like the inevitable next chapter for electric cars. The pitch always sounds great on paper: more range, faster charging, less fire risk, lower weight. But the world’s biggest battery maker apparently didn’t get the memo, because CATL just confirmed it’s putting a completely different chemistry into mass production this year<\/a>, and chasing something even stranger for the long haul.<\/p>\n

The Chinese giant, which supplies cells to Tesla, BMW, Hyundai, Toyota and most of the other names you’d recognize, says it’ll start mass producing sodium-ion batteries in 2026. That’s not a lab announcement or a five-year roadmap. CATL Chief Scientist Wu Kai confirmed at the 2026 Equipment Powerhouse Forum on May 30 that the manufacturing bottlenecks have been resolved. Translation: the cells are coming off real production lines, in real cars, soon.<\/p>\n

Sodium is cheap, abundant, and doesn’t catch fire as easily<\/h2>\n

The case for sodium-ion is mostly about economics and supply chain headaches. Lithium isn’t rare, exactly, but it’s concentrated in a handful of countries and the refining capacity is a constant bottleneck. Sodium is sitting in the salt shaker on your kitchen counter and dissolved in every ocean on the planet.<\/p>\n

That translates into a real price gap. CATL expects sodium-ion cells to come in around 30% cheaper than LFP, the chemistry BYD popularized for budget EVs. Chairman Robin Zeng has been even more aggressive about it, projecting that sodium-ion will eventually replace 30% to 40% of the existing battery market. That’s not a footnote in CATL’s strategy. That’s a reshuffle of the entire stack.<\/p>\n

There’s a safety angle too. Sodium-ion cells are less prone to thermal runaway than conventional lithium-ion, and they hold up much better in the cold. CATL says its sodium cells retain more than 90% of nominal capacity at -40\u00b0C, which is the kind of number that matters if you live somewhere that gets actual winter. Anyone who has watched their EV’s range tank in a January parking lot already knows why this is a big deal.<\/p>\n

The catch: range is still the weak spot<\/h2>\n

The traditional knock on sodium-ion has always been energy density. Sodium atoms are bigger and heavier than lithium, so for the same physical pack you get less energy stored. That’s why you haven’t seen these cells in long-range EVs yet.<\/p>\n

The gap is closing, though. CATL’s Naxtra sodium-ion battery achieves an energy density of up to 175 Wh\/kg, which puts it roughly on par with lithium iron phosphate. CATL’s near-term sodium packs are aimed at a 45-kWh configuration good for about 400 km (248 miles) under China’s CLTC test cycle. The longer-term target Wu Kai mentioned is 600 km, which would push sodium-ion squarely into mainstream EV territory rather than just city runarounds.<\/p>\n

The commercial proof point is already in motion. CATL and Changan jointly unveiled<\/a> a passenger vehicle equipped with the Naxtra sodium-ion battery in February, with a market launch slated for mid-2026. That model (widely reported to be the Changan Nevo A06) is set to be the first mass-produced passenger EV running on sodium cells.<\/p>\n

BAIC’s 11-minute charge isn’t a typo<\/h2>\n

CATL isn’t doing this alone. Beijing Automotive Group (BAIC), the state-owned giant that builds Hyundai’s cars for China through the Beijing Hyundai joint venture, has been pushing its own sodium-ion program, and the numbers are loud. BAIC says its prototype cell hits an energy density of 170 Wh\/kg and supports 4C fast charging, with a full charge claimed in just 11 minutes<\/a>.<\/p>\n

Cold-weather performance on BAIC’s cell is similar to CATL’s. BAIC says it operates from -40\u00b0C to 60\u00b0C and holds more than 92% of its energy at -20\u00b0C. The safety pitch goes a step further. BAIC says the cells didn’t catch fire or explode under overcharging up to 200% state of charge, heating, or mechanical impact, which the company claims exceeds China’s current national safety standards.<\/p>\n

BAIC’s sodium-ion work sits inside its broader “Aurora Battery” platform, which also covers lithium-ion and solid-state research. The company has filed 20 patents on the sodium technology and says it has completed process validation for mass production, though it hasn’t named which model will get the cells first.<\/p>\n

Then there’s the lithium-air moonshot<\/h2>\n

While sodium-ion handles the cheap-and-now side of CATL’s roadmap, the company is also throwing R&D money at something far stranger. Lithium-air batteries use lithium metal as the anode and oxygen pulled directly from the surrounding air as the cathode. The lithium reacts with oxygen to produce electricity, and because you don’t need to carry around a heavy metal cathode, the pack itself can be dramatically lighter and denser.<\/p>\n

The theoretical numbers are absurd. CATL describes lithium-air as a long-term successor to conventional lithium-ion baselines, with energy density potential well beyond current solid-state or liquid-electrolyte systems. For context on what CATL has already proven on adjacent tech, the company’s lithium metal battery research published in Nature Nanotechnology<\/a> hit 500 Wh\/kg with a working prototype, roughly twice what’s in a Tesla Model Y today. Lithium-air would, in theory, blow past even that.<\/p>\n

In practice, lithium-air is still a science problem more than an engineering one. The reaction with oxygen is finicky, the cells degrade quickly, and packaging them safely is a nightmare. CATL hasn’t given a timeline because there isn’t one yet. This is the kind of tech that might land in a production car in the 2030s, or might quietly disappear into a footnote like a dozen other “next big thing” chemistries.<\/p>\n

The cheap end of the market is where this lands<\/h2>\n

The interesting part isn’t whether sodium-ion eventually replaces lithium. It almost certainly won’t, at least not for premium long-range EVs. The interesting part is what happens to the bottom of the market. If CATL hits its 30% cost reduction versus LFP, and if BAIC’s 11-minute fast-charge claim survives contact with real chargers and real customers, the floor on EV pricing drops considerably. That’s how you get small city EVs that genuinely compete with cheap gasoline hatchbacks on sticker price, not just operating cost.<\/p>\n

It also reshuffles the battery supply chain in a way Western automakers should probably pay attention to. CATL installed 29.06 GWh of EV batteries in China in April 2026 alone, holding a 46.6% market share, according to China EV DataTracker. The company has also secured a 60 GWh sodium-ion supply contract, the largest single order for sodium cells reported globally. Whoever ends up putting those packs in cars first gets a structural cost advantage that’s hard to claw back.<\/p>\n

Solid-state batteries will still happen eventually<\/a>. Toyota, Samsung and a handful of others have spent years and billions promising as much. But CATL’s bet here is that the real cost breakthrough for affordable EVs doesn’t come from the chemistry everyone’s been hyping. It comes from the one sitting in the salt shaker.<\/p>\n","protected":false},"excerpt":{"rendered":"

CATL is skipping solid-state and going straight to sodium-ion mass production this year, with lithium-air batteries on the long horizon. Here’s what that means for EV prices.<\/p>\n","protected":false},"author":8,"featured_media":9375,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[6],"tags":[],"class_list":["post-9346","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-electric-vehicles-evs","resize-featured-image"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.autonocion.com\/us\/wp-json\/wp\/v2\/posts\/9346","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.autonocion.com\/us\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.autonocion.com\/us\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.autonocion.com\/us\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.autonocion.com\/us\/wp-json\/wp\/v2\/comments?post=9346"}],"version-history":[{"count":2,"href":"https:\/\/www.autonocion.com\/us\/wp-json\/wp\/v2\/posts\/9346\/revisions"}],"predecessor-version":[{"id":9380,"href":"https:\/\/www.autonocion.com\/us\/wp-json\/wp\/v2\/posts\/9346\/revisions\/9380"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.autonocion.com\/us\/wp-json\/wp\/v2\/media\/9375"}],"wp:attachment":[{"href":"https:\/\/www.autonocion.com\/us\/wp-json\/wp\/v2\/media?parent=9346"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.autonocion.com\/us\/wp-json\/wp\/v2\/categories?post=9346"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.autonocion.com\/us\/wp-json\/wp\/v2\/tags?post=9346"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}