Breakthrough battery technology is coming...in 2020.
Comparison Between Lithium-Ion and Solid-State Technology
That's the word from Toyota, the automaker that would like to stop using lithium-ion batteries in the future due to cost and excessive weight.
Toyota says it's readying both solid-state and lithium-air battery technology for use in production plug-in vehicles by 2020
In the words of Toyota:
"As Toyota anticipates the widespread use of electric vehicles in the future, we have begun research in developing next-generation secondary batteries with performance that greatly exceeds that of lithium-ion batteries. Beginning in 2010, we planned to accelerate our research through collaboration with production technologies. We are currently conducting research and development on two types of batteries, all-solid-state batteries and lithium-air batteries."
Solid-state batteries utilize a solid electrolyte and electrodes, unlike lithium-ion technology, which utilizes liquid electrolytes.
The expected benefits of solid-state batteries include:
- The lack of liquid in solid-state battery cells enables them to be connected to each other without being placed in their own individual cases, which enables more compact packaging.
- Solid-state batteries have the potential to be extremely high in energy density.
- Solid-state technology promises to offer an exceptional power-to-weight ratio
Lithium-air batteries, which Toyota is working on, would come after solid-state and could theoretically store up to 50 times more energy than today's lithium-ion units.
However, theory doesn't necessarily equal reality, but 2020 could potentially be the breakthrough year for battery tech. Only seven years of breath-holding. Hope you're patient.