CATL’s sodium battery roadmap aligns with large-scale deployment plans across passenger cars, energy storage, and swapping systems.

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Solid-state battery breakthrough: 3D "reathing" silicon anode promises safer, higher-density power.

The post A breakthough in solid-state battery materials: Chinese researchers unveil “breathable” silicon anode appeared first on CarNewsChina.com.

Battery maintains 80% capacity after 1,400 cycles in 60°C heat, about 840,000 kilometers.

The post CATL claims new 5C battery lasts 1.8M km, even under ultra-fast charging appeared first on CarNewsChina.com.

Samsung SDI has locked in a major battery supply contract in the US, and all signs point to Tesla being the customer.

On January 30, Samsung SDI confirmed that its US subsidiary has signed a large-scale battery supply deal. Key details are sealed until 2030 due to confidentiality. That alone tells you the size and sensitivity of the agreement.

The South Korean tech giant has not named its partner, but the market reaction was instant. This looks like a strategic win for Samsung at a moment when the US battery supply chain is being forcibly reshaped.

Meanwhile, this disclosure effectively closes the loop on reports from late last year that linked Samsung SDI to Tesla’s energy storage business.

The US government has tightened the screws on Chinese batteries, cutting them out of subsidies and slapping on steep tariffs. That said, Tesla needed a China-free alternative fast, and Samsung SDI was ready to land the deal.

Supplying LFP chemistry is not enough. Tesla needs prismatic cells, made at scale, inside North America. That short list of suppliers is very short, and Samsung SDI sits comfortably on it.

Samsung SDI has been quietly building out ESS-focused capacity in the US while others debated policy risk. At the StarPlus Energy joint venture with Stellantis, Samsung SDI already operates a 7 GWh NCA ESS line.

If this deal is indeed tied to Tesla’s ESS program, Samsung SDI just scored one of its most important US wins in years.

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