Will sodium ion batteries replace lithium ion technology soon?

Researchers have developed the concept of sodium-ion batteries with recent success. This technology can replace lithium-ion batteries.

When it comes to electric mobility, many potential electric car buyers are usually interested in one thing: how long does it take to charge and are longer trips possible with an electric car? Meanwhile, short charging operations can guarantee a trip to the next charging station.

But when will there be batteries that allow you to continue driving as fast as combustion engines? Researchers from the Korea Advanced Institute of Science and Technology (KAIST) recently breakthrough achieved in this direction. They have developed a new type of sodium-ion battery that can be charged in just seconds.

This technology could serve as an alternative to today's lithium-ion batteries, especially in areas such as electric vehicles and other energy management technologies.

New sodium-ion batteries eliminate the drawbacks of older versions

This innovation combines anode materials typically used in batteries with cathodes suitable for supercapacitors. This combination enables high storage capacities and fast charging and discharging times.

This represents a significant advance over existing sodium-ion batteries, which often suffer from problems such as lower power output and longer charging times. To overcome the technological challenges, Professor Jeong-Koo Kang's team used two different metal-organic frameworks to improve the production of hybrid batteries.

This approach led to the development of a new anode material. Incorporating fine active materials into porous carbon, which researchers previously obtained from metal-organic frameworks, made this possible. The team also fabricated a high-capacity cathode material that supports rapid acceptance and release of electrons.

They can be used in electric cars and in aviation

The whole-cell composite battery system exhibits high performance that exceeds the energy density of commercial lithium-ion batteries. At the same time, this system has the energy density characteristics of supercapacitors. These characteristics make the battery particularly suitable for applications that require fast charging.

This includes electric cars, smart electronic devices and aviation technologies. Professor Kang confirms that these sodium-ion hybrid energy storage devices charge quickly despite a power density of 247 watt-hours per kilogram and a power density of 34,748 watt-hours per kilogram. It can help overcome current limitations of energy storage systems.

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