El Salvador solid-state energy storage battery company
Technical and market advice on the financing of 4 batteries totaling 14.6 MW for the integration in the electricity market of two PV plants in El Salvador owned by Neoen.
A sodium-ion battery (NIB, SIB, or Na-ion battery) is a rechargeable battery that uses sodium ions (Na +) as charge carriers. In some cases, its working principle and cell construction are similar to those of lithium-ion battery (LIB) types, simply replacing lithium with sodium as the intercalating ion.
Chinese battery manufacturer CATL (world's largest EV battery maker) announced in 2021 that it would bring a sodium-ion based battery to market by 2023. It uses Prussian blue analogue for the positive electrode and porous carbon for the negative electrode. They claimed a specific energy density of 160 Wh/kg in their first generation battery.
In 2024, Dalhousie University researchers enhanced sodium-ion battery performance by replacing hard carbon in the negative electrode with lead (Pb) and single wall carbon nanotubes (SWCNTs). This combination significantly increased volumetric energy density and eliminated capacity fade in half cells.
In February 2023, the Chinese HiNA placed a 140 Wh/kg sodium-ion battery in an electric test car for the first time, and energy storage manufacturer Pylontech obtained the first sodium-ion battery certificate [clarification needed] from TÜV Rheinland. Sodium-ion battery development took place in the 1970s and early 1980s.
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