Sodium-ion cells launched for energy storage by another Chinese mid-tier battery company

Hubei-located Bosa Energy has announced the launch of 175 Ah sodium-ion cells, and while not one of the battery giants in the market, it’s a further sign of sodium-ion advancing to compliment lithium-ion based battery solutions.

Bosa Energy operates four manufacturing bases covering about 500,000m2 in China, and the company says its new sodium-ion battery cell “is identical in size to the 314 Ah cell”, requiring no adjustments to the existing structural design or installation methods. The company also said “existing equipment and products can be directly replaced, significantly saving R&D time and modification costs, enabling efficient deployment and upgrades.”

According to the product specifications, each cell has a mass energy density of 110 Wh/Kg and a volumetric energy density 206 Wh/L. The 175 Ah cell weighs 4.75 kg with dimensions 174.2mm by 71.6mm by 204.4mm.

Bosa says its lifespan has with a cycle life of greater than 8000 cycles at a power charge 0.5P/0.5P. It is positioning the cells for energy storage systems, electric ships, or industrial power applications

Bosa did not publish a price for the cells and did not respond to ESS News at the time of writing. At the start of 2026, sodium-ion battery cells were said to be already near lithium-ion cost parity, and set to get cheaper.