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May 17, 2022

Posco and Prologium to co-develop solid-state battery tech

Posco and Prologium will co-develop anode materials, silicon cathode materials, and solid electrolytes for solid-state batteries and plan a global supply system.

By David Leggett

Posco Holdings has decided to cooperate with Prologium solid-state battery manufacturer, to develop core materials for next-generation secondary batteries.

Posco has signed an agreement to invest in Prologium and to co-develop cathode materials, silicon cathode materials, solid electrolytes for solid-state batteries, and establish a global supply system.

Founded in 2006, Prologium developed solid-state batteries in 2012 and is selling them to manufacturers of small IT devices such as smartwatches. The company is also attracting investment from global investment companies and co-developing solid-state batteries for electric vehicles with major automakers such as Mercedes-Benz.

Whereas in conventional secondary batteries, electricity is generated and charged through liquid electrolytes between the anode and cathode electrodes of the battery, a “solid-state battery” is a next-generation battery that replaces the liquid electrolytes between the battery’s anode and cathode with a solid and eliminates a separator, which can secure safety and increase energy density.

Posco says it is securing its capabilities to develop materials such as high-capacity anode materials and silicon anode materials that can be applied to solid-state batteries and has strengthened its capabilities to develop next-generation secondary battery materials by establishing POSCO JK SOLID SOLUTION at the beginning of this year.

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