PTI technical team takes on the challenge of developing a new sodium battery


PTI technical team takes on the challenge of developing a new sodium battery The new version will have flat cells and have wide application area, also serving electric vehicles and energy storage systems The research project for a new version of the sodium battery, an initiative of Itaipu Binacional involving joint execution with experts from the Itaipu Technological Park (PTI), was started this year. The technical team of the two institutions has been developing battery research since 2012 and, with the support of the Financing Agency for Studies and Projects (Finep), obtained knowledge and experience with the technology, which allowed the development of the first version of sodium battery.


Currently a new battery version, with flat cells, is being developed. The expectation is to reach a high-tech product with competitive price in the market. The project is scheduled for completion in December 2019.



Nickel-sodium batteries, also known as NaMCl2, are composed of transition metals (M = nickel, iron, cobalt, among others) and sodium chloride (NaCl). In addition to having high energy density and being safe, these batteries are sustainable since they use abundant, non-toxic, recyclable and inexpensive materials.


Nickel-sodium batteries with the new cell shape can be used in a wide range of applications. These technologies can be used in stationary systems in conjunction with power generation systems, such as wind and photovoltaic, for energy storage. They also have application in telecommunications systems (backup for the power supply) and isolated systems.


In the first project, which was supported by Finep, the first version of the nickel-sodium battery was developed. 


The new generation of nickel-sodium batteries also serves mobility, and can be used in electric drive vehicles, off-road vehicles, electric trucks, vehicle rapid charging system, small and medium size buses, among others.

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Learn about the applications advantages of the sodium battery