Sodium-ion batteries are emerging as a transformative force in the long-duration energy storage (LDES) market, poised to outpace competing technologies and enter widespread use by 2027. Exclusive research by GetFocus, an AI-driven analysis platform specialising in technology forecasting, reveals that sodium-ion batteries are rapidly improving in performance and cost-effectiveness, offering a game-changing solution to renewable energy intermittency.
Affordable and efficient LDES systems are pivotal to the global energy transition, bridging the gaps in solar and wind energy production. By storing surplus energy during peak production and releasing it when needed, these systems stabilise energy supply, reduce dependence on fossil fuels, and accelerate the adoption of renewables. Sodium-ion technology, according to GetFocus’ predictive insights, is making strides that could reshape the energy grid.
GetFocus uses advanced analytics inspired by research from the Massachusetts Institute of Technology, leveraging patent data to calculate metrics like “cycle time” and “knowledge flow.” These metrics, combined into a “technology improvement rate,” provide a clear picture of how fast sodium-ion technology is advancing. In 2024, this improvement rate stands at an impressive 57%, signalling rapid strides in energy density, cost efficiency, and operational flexibility.
The report highlights sodium-ion batteries’ potential to outperform other LDES options thanks to their superior energy efficiency and reduced energy losses during storage and supply. By 2028, their affordability is set to surpass lithium-ion batteries significantly, with projected costs dropping from $87 per kilowatt-hour (kWh) to as low as $10/kWh. This trajectory positions sodium-ion technology as a frontrunner for grid-scale renewable energy storage, where costs of $50/kWh are considered critical for economic viability.
Kacper Gorski, head of operations at GetFocus, underscores the versatility of battery-based LDES, citing the relative ease and speed of developing new battery chemistries compared to infrastructure-heavy alternatives like compressed air energy storage. While other methods may suit specific scenarios, sodium-ion batteries are uniquely positioned to meet diverse energy storage needs with flexibility and scalability.
With their swift technological advancements and affordability, sodium-ion batteries are on track to redefine energy storage solutions across the power grid, supporting the renewable energy transition on a global scale.
DG Innovate plc (LON:DGI) is an advanced research and development company pioneering sustainable and environmentally considerate improvements to electric mobility and storage, using abundant materials and the best engineering and scientific practices. Deregallera is a subsidiary of DG Innovate.
