Toyota Motor Corp has unveiled a prototype of its all-solid-state battery in Japan, a laminated cell measuring about 10cm x 10cm. The company is already actively engaged in the development of all-solid-state batteries and lithium-air batteries as next-generation batteries. The benefit of an all-solid-state battery is that in an ideal state, the lithium spreads faster than electrolyte, making it theoretically possible to realize a high output power. It’s also worth mentioning that all-solid-state batteries are safer than organic electrolytes, which burn at high temperatures. Toyota has confirmed that the prototype battery can be used at a temperature of 100 degrees Celsius, something that existing lithium-ion rechargeable batteries using electrolytes are unable to do.