sodium-ion batteries

A report from the International Renewable Energy Agency (IRENA) notes that while it is still uncertain whether sodium-ion batteries will become a disruptive alternative to lithium-ion technology, they could offer significant cost-saving opportunities in applications such as electric vehicles and large-scale energy storage.

In a major milestone for the two-year-old Series A startup and the broader stationary energy storage sector, US-based Peak Energy has signed a supply agreement potentially worth more than $500 million.

From ESS News China Petroleum & Chemical Corporation (Sinopec) and South Korea’s LG Chem have signed a joint development agreement to advance key materials for sodium-ion batteries, as the technology moves closer to mass commercialization. Under the agreement, the two companies will collaborate on developing cathode and anode materials for sodium-ion batteries, targeting applications in […]

Researchers in Japan have adopted a new calcium-doping strategy to improve the stability and electrochemical properties of NFM, a cathode material used in sodium-ion batteries. The new technique enhances crystallinity and increases the interlayer spacing in NFM, resulting in higher performance compared to NFM treated with conventional processes.

Researchers in China have used electrochemical impedance spectroscopy to analyze the state of health of sodium-ion batteries. Extracting four features from the measurements, they were able to create a machine learning model for a temperature-resistant state of health estimation method.

Italy-based Heiwit has developed a 200 Ah sodium-ion battery with a lifespan of 6,000 cycles. The device reportedly offers thermal stability and rapid charging speed.

Spain’s Instituto Tecnológico de la Energía (ITE) has built a prototype sodium-ion battery cell using high-potential materials and a sustainable polymer-based separator, as part of the SOSBAT project to develop alternatives to lithium-ion storage.

The Baochi Storage Station in Yunnan integrates lithium and sodium-ion technologies at scale, a global first, aiming to stabilize renewable energy and cut costs as China accelerates its energy transition.

Researchers in Germany have compared the electrical behaviour of sodium-ion batteries with that of lithium-iron-phosphate batteries under varying temperatures and state-of-charges. Their work shows how state-of-charge during cycling significantly affects the efficiency of sodium-ion devices.

Cheap, safe, widely available sodium could be used for battery energy storage alongside photovoltaics. The Sodium-Ion-Battery Germany (SIB:DE) Research project is investigating whether sodium-ion technology can be affordably integrated into lithium-ion battery production facilities.