Beyond Lithium-ion Batteries - Argonne National Laboratory
Lithium metal is considered to be an ideal anode for next-generation rechargeable batteries because its ultra-high theoretical capacity is more than ten times that of graphite anodes used in current lithium-ion batteries. This technology developed at Argonne National Laboratory greatly solves two main problems preventing the application of lithium metal anode from real-world batteries:
1) the formation of dendrites during electrochemical cycles continuously consumes electrolytes and 2) the dendrites can penetrate the separator. Both problems eventually lead to battery failure.
We have developed a solid-state electrolyte by chemical vapor technologies to address the two problems simultaneously and enable the use of high energy anode for long-term cycling. Using our technology, practical rechargeable batteries can reach an energy density of >500 Wh/kg, which is about three times that of current LiCoO2/graphite batteries.