Aspen Aerogels (ASPN) recently obtained a patent for the use of carbon aerogels in lithium-sulfur batteries. The patent has the potential to disrupt the electric vehicle and sustainable energy markets.
There is still a lot of research needed to understand how much this technology will improve lithium-sulfur batteries and if it will be enough to replace lithium-ion batteries. Even if it does, this change will happen gradually, but the change’s prospect is enough to be optimistic about the company in the long run.
Understanding the patent
To understand why lithium-sulfur batteries could replace lithium-ion batteries, we need to understand how these two technologies compare in the 3 key aspects of a battery for the industry: capacity, price, and the number of cycles of the battery.
Capacity is the amount of energy that a battery can accumulate. Current lithium-ion batteries can accumulate around 200 Wh/kg and have a theoretical maximum of