Overseas media report (ESS News, UK energy storage media, August 28, 2026): The world's largest sodium-ion battery supply agreement (CATL and HyperStrong, 60GWh over three years) is seen as a breakthrough for commercialization, but the industry must still prove it can scale manufacturing and compete commercially in the long term. According to the feature, US company Natron Energy (a Stanford University spinout that unveiled plans for a 24GW sodium-ion gigafactory in the US) has ceased operations; Europe's battery manufacturing hopeful Northvolt (pursuing both lithium and sodium-ion technologies) has struggled or collapsed under the weight of scaling challenges. According to the Benchmark Mineral Intelligence (BMI) Gigafactory Database, China currently accounts for 99.6% of global sodium-ion manufacturing capacity, projected to decline only slightly to 98% by 2030; by the end of the decade, global sodium-ion pipeline capacity is about 660GWh, of which 433GWh comes from tier-3 market entrants, while tier-1 producers (such as CATL) account for only about 10%.
On chemistry, analysts at London-based CRU Group expect sodium iron pyrophosphate (NFPP) - the sodium analogue of lithium iron phosphate (LFP) - to reach cost parity with LFP in 2028 and potentially surpass it later this decade; despite NFPP's lower energy density than Prussian blue/white and layered oxide counterparts, its more robust crystal structure delivers much longer cycle life, which is critical for BESS applications.
The article also reviews CATL's sodium-ion positioning: its latest 300+Ah large-format cell has an energy density of about 160Wh/kg, system energy conversion efficiency of 97%, cycle life of more than 15,000 cycles at 80% capacity retention, and an operating temperature range of -40°C to 70°C; since 2016, CATL has invested nearly CNY 10 billion (about USD 1.5 billion) in sodium-ion R&D; its latest product is based on a layered oxide composite cathode (the 2021 first-generation used Prussian blue/white). HyperStrong founder, chairman and CEO Jianhui Zhang said the cooperation is not only about securing future supply capacity but also about accelerating the industrialization and commercialization of sodium-ion storage technology.
The specific timing and reasons for Natron Energy's closure are not detailed in the article and should be verified with its official website or subsequent reports; BMI's 660GWh pipeline capacity is a planned figure, not actual landed capacity; the cost-parity forecast is an institutional estimate that depends on material prices, yields and scale effects.