Print Friendly, PDF & Email

Solid-state battery

Facts for Prelims (FFP)


Source: IE

 Context: Toyota aims to launch next-generation solid-state batteries within three years, with the potential for two sets of battery electric vehicles (BEVs) in its line-up—one using existing lithium-ion batteries and another featuring the new solid-state batteries.

  • The breakthrough technology could revolutionize EVs by doubling range and significantly reducing charging time compared to traditional lithium-ion batteries.


Solid-state batteries use solid electrodes and a solid electrolyte, instead of the liquid or polymer gel electrolytes found in lithium-ion or lithium polymer batteries.

Solid-state batteries use a variety of materials, including ceramics, solid polymers, and glass. 

The working principle of a solid-state battery is similar to a conventional lithium-ion battery. During discharge, the cathode is reduced and the anode is oxidized. Lithium ions move from the anode to the cathode through the solid electrolyte. The reverse process occurs during charge.