According to China Energy Storage Network coverage on August 21 (data source: CESA Energy Storage Application Branch industry database), 2026 is widely regarded as the "year one of volume production" for sodium-ion batteries, with both investment and capacity layout expanding in the first half. On financing: China's sodium battery sector saw 20 financing events in Jan-Jul 2026, of which 13 disclosed specific amounts totaling about RMB 2.02 billion; the largest single round was a US$100 million strategic financing for CNaE. On capacity: 36 sodium battery expansion projects were tracked with a combined designed annual capacity of about 165.7GWh and disclosed total investment exceeding RMB 60.5 billion. By progress: 7 projects have been put into production (including product roll-off), 5 signed, and 10 under construction/groundbreaking, with the rest at filing, EIA or public-notice stages — that is, truly landed capacity is only about 14.7GWh and capacity under construction is 34GWh, with most planned capacity not yet entering actual construction.
On structure and regions: A-round and A+ rounds were the most active (10 rounds, 50%), strategic financing 4 rounds (20%), and angel/angel+ 3 rounds (15%). By industry segment, cell and whole-line companies led with 11 rounds (57%), followed by cathode material companies with 5 (24%) and anode material companies with 4 (19%). Cathode financing concentrated on the polyanionic (including NFPP) route, including He Electric, Xingrong Xinyuan, Jiana Energy and Yingna New Energy; anode financing focused on biomass-derived hard carbon, including Sodium New Materials, Guoke Carbon Core, Huakai New Energy and Rongna New Energy. Notably, all-solid-state sodium-ion batteries began attracting early investment — Zhaona New Energy completed a near-RMB 100 million angel+ round in July with investors including Jiangyin Future Industrial Investment and Xinguolian.
By region: East China has 10 projects, the densest area (ChaoWei Anqing 6.5GWh in production, Hunar Jiaxing 4GWh under construction, Qingna Xuancheng 5GWh in acceptance); Northwest China has 8 projects focusing on "wind-solar + storage" synergy (Jiuxu Sodium's 50GWh full-chain Alxa project filed with RMB 20 billion investment); Southwest China has 7 projects leveraging hydropower for "material-cell" integration (Sodium Innovation Energy's Puer 2GWh in production, Haisida Neijiang 6GWh under construction); South China has 6 projects (East Group's Foshan 2GWh already in production, Do-Fluoride's Nanning 30GWh at filing stage).
This suggests the sodium battery industry is shifting from a planning stage of "hot capital and capacity" to a validation stage of "whether planned capacity can translate into effective output" — the 165.7GWh planned across 36 expansion projects in H1 is substantial, but landed capacity is only 14.7GWh. Planned capacity does not equal actual capacity; between them lie construction cycles, funding availability, yield ramp-up and downstream demand validation.