Inexpensive and capacious. An innovative solid-state battery was developed in Belgium

Solid-state batteries can become a breakthrough in electric vehicles, making electric cars more affordable and practical.

The Belgian company Imec, a leader in the field of scientific research. and development, together with European partners, has demonstrated significant progress in this field.

As part of the SOLiDIFY project, the company presented a solid-state battery prototype with an energy density of 1070 Wh/l. 25% higher than that of modern lithium-ion batteries. Moreover, the production process of these batteries is carried out at room temperature, which makes it possible to adapt it to the existing production lines of lithium-ion batteries. These batteries are expected to cost less than €150 per kWh, making them competitive with traditional batteries that cost around $140 per kWh.

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A key achievement was the application of the technology “solidification from a liquid to a solid body”, where an alloyed polymerized ionic liquid is used in a thin layer of electrolyte 50 micrometers thick. This design, which includes a high-capacity composite cathode and a thin lithium-metal anode, makes the battery compact and energy-efficient.

The consortium also managed to increase the charge speed to three hours and extend the life of the batteries to 100 cycles. , solving the problems of mechanical strength and reducing the use of cobalt. However, for full commercialization, improved charge times and increased cycle rates are needed so that the batteries can withstand more than 2,000 charges like modern lithium-ion batteries.

Despite these challenges, solid-state batteries represent a promising technology. They can provide increased energy density, reduce charging time and increase safety at a more affordable price, making them one of the most promising developments for the future of electric vehicles.