Naxion Energy builds sodium-ion storage systems that aim to replace lead-acid inverters and diesel generators

Naxion Energy, a company founded in 2024 as Sodion Energy, is set to revolutionize the energy storage market with its innovative sodium-ion battery systems. The company's headquarters is located in Hyderabad, India, with a manufacturing plant in Coimbatore. These sodium-ion batteries aim to replace traditional lead-acid inverters and diesel generators, which are heavy, water-dependent, corrosive, and have limited lifespans.

In December 2025, Naxion Energy unveiled its first sodium-ion energy storage systems for the Indian market. These systems combine the battery, inverter, and solar charge controller into a single unit, available in three capacities of 3.5 kW, 5 kW, and 10 kW. The battery capacity can be doubled, making them an ideal solution for both residential and commercial applications.

What sets sodium-ion batteries apart from their competitors is their safety and low maintenance requirements. Unlike lithium batteries, sodium-ion cells do not pose a risk of fire, making them suitable for indoor installations in homes and commercial spaces. Additionally, sodium-ion batteries require no maintenance, eliminating the need for regular water top-ups and corrosion that plagues lead-acid batteries.

The sodium-ion cells also boast a higher charge and discharge rate compared to lead-acid and lithium batteries. This feature enables the systems to handle heavy inductive loads, such as air conditioners, compressors, pumps, and industrial equipment like welding and cutting machines. These loads often exceed the capabilities of conventional inverter batteries.

Naxion Energy's sodium-ion battery packs are versatile and cater to a wide range of applications. They are currently being developed for mobility, industrial use, marine applications, and grid-scale installations. The company also plans to collaborate with equipment manufacturers to integrate their sodium-ion chemistry into their products.