Skoltech Scientists Develop Patented High-Stability Cathode Material for Lithium-Ion Batteries

Researchers at the Skolkovo Institute of Science and Technology (Skoltech) have developed and patented a high-capacity cathode material for lithium-ion batteries, featuring enhanced stability and an efficient production method. The material, based on layered transition metal oxides with increased nickel content, is expected to extend battery life by about 10% compared to commercially available alternatives.

Led by Professor Emeritus Artem Abakumov, the Skoltech team also devised a new production method using hydrothermal treatment with microwave radiation. This faster and more cost-effective process could help meet the growing demand for electric vehicles in Russia.

The production process involves hydrothermal microwave treatment to coat cathode precursor particles with cobalt hydroxide, followed by high-temperature lithiation. This method results in a unique radial particle arrangement that improves material stability and capacity.

The researchers demonstrated that the new material allows lithium-ion batteries to last around 10% longer. Additionally, the use of low-cost reagents, such as urea, further reduces production costs.

Developing advanced energy storage technologies is a key priority for Russia. Skoltech is the largest holder of intellectual property in oxide cathode materials in the country, actively working on new materials and efficient production technologies. According to Abakumov, reducing the cost of cathode material production by even 10% would significantly enhance market competitiveness.

The team is also working on cells with a maximum energy capacity of 260 Wh/kg and has produced prototypes exceeding 250 Wh/kg. Future developments include constructing a new precursor production unit with a capacity of 20 tons per year and launching a high-temperature lithiation furnace with a capacity of 85 tons per year.