Rosatom Chemistry JSC (AO “Rosatom Khimia”), a
subsidiary of Rosatom's Fuel division, has launched the pilot production of eight
electrolyte grades. These products are used as
components in the manufacturing of
battery cells, which are subsequently
assembled into batteries for a variety of
applications. The company has developed its own manufacturing process and mastered the production of electrolytes for both non-rechargeable and rechargeable
batteries, including lithium-ion and post-lithium systems such as sodium-ion
and potassium-ion batteries. These electrolytes ensure consistent battery performance even at such low temperatures as -40°C, enhance the battery's lifespan and improve the efficiency of the charge-discharge cycle. The know-how employed allows for achieving
high transparency, stability, and a prolonged
shelf life for the chemical composition.
The pilot production has been arranged at Rosatom Chemistry JSC research and development center in Moscow. This facility is capable of producing electrolytes for chemical power sources in full compliance with the specifications of the customers. Currently, the pilot facility produces 6 tons of electrolyte annually, but there are plans to increase production to 50 tons in the near future with strategic plans including the arrangement of a large-scale production with a capacity of up to 10,000 tons. The capacity increase is driven by the growing market demand in Russia and the production of lithium-ion batteries by Rosatom. In December 2025, Rosatom started pilot commercial operation of Russia's first gigafactory for energy storage systems in the Kaliningrad Oblast, while a similar facility is currently under construction in New Moscow.
“Most lithium-ion battery manufacturers opt for procuring pre-made electrolytes rather than producing them in-house. Rosatom’s production of battery cell components is a further step towards strengthening the national technological independence in the strategic battery sector. Our research and development center has mastered the entire process, from designing the chemical composition of electrolytes to assembling test batteries to ensure the compliance with customer requirements. With our expertise, we are able to thoroughly inspect every component in a completed cell,” said Kristina Tikhomirova, Development Director at Rosatom Chemistry JSC.
The electrolyte manufactured by Rosatom Chemistry JSC has been qualified by a number of Russian battery producers and is currently undergoing trials at nine companies operating in various sectors. The electrolyte has already been supplied to Russian manufacturers of medical and specialized equipment, such as pacemakers, solar batteries, and spacecraft batteries, as well as to a prominent energy research and development center.
An electrolyte is a lithium salt
solution that is infused into
the porous separator and electrodes of a battery. This is an environment enabling the movement of lithium cations,
which makes possible repeated battery recharge
and discharge over a long time. The characteristics of the electrolyte have a direct
impact on the battery's performance,
including its energy capacity, power output, lifespan,
and safety. The electrolytes produced
by Rosatom Chemistry JSC are complex mixtures of highly pure solvents and functional
additives.
Energy storage systems represent a promising sector of the emerging technological landscape. Lithium-ion
batteries are already widely used in
electric vehicles, including cars, trucks, buses, and boats, as well as in specialized equipment such as forklifts,
warehouse and logistics vehicles, mining equipment, logistics robots, etc. The
use of energy storage systems in the electricity sector is increasing. Operating DC systems
ensure uninterrupted energy supply to
critical manufacturing facilities while energy storage systems help to balance electricity demand, thereby reducing energy
costs.
JSC Rosatom Chemistry is a subsidiary company of the Fuel division of Rosatom.
Rosatom’s
Fuel division includes nuclear fuel
fabrication plants, uranium conversion and enrichment companies, gas centrifuge manufacturers, and R&D facilities.
The division is the sole supplier of nuclear fuel for Russian NPPs. It provides
fuel for more than 70 power reactors in
15 countries and research reactors in 9 countries. The division also supplies
fuel for propulsion reactors of the Russian nuclear fleet. Its fuel powers one in six reactors
worldwide. The division is also the
largest producer of enriched uranium and leader in the global market for stable
isotopes. It is actively expanding its business into new areas such as
chemistry, metallurgy, energy storage technologies, 3D printing, and digital
products, as well as decommissioning of
nuclear facilities. The Fuel division also includes industry integrators
for additive manufacturing and energy storage systems.
Rosatom's advanced technologies draw on the outstanding achievements in Russian nuclear science and fully conform to the current ESG agenda. These accomplishments are the result of work of thousands of highly trained experts who are committed to maintaining Russia's economic stability. Through a close partnership between industrial companies and research institutions, the nation is bolstering its technological independence and improving the competitiveness of its domestic nuclear sector.
