This technology is a method for modifying lithium cobalt oxide (LCO) cathodes to provide improved operation voltage, specific capacity, and lifetime.
Rechargeable lithium-ion batteries (LIBs) are widely used in various portable electronics, and lithium cobalt oxide (LCO) is currently used in more than 31% of such LIBs. LCO is an important cathode material due to its high theoretical energy storage capacity, but much of that theoretical capacity is inaccessible and incompatible with poly(ethylene oxide) (PEO)-based electrolytes, which are gaining popularity as safer device components in regards to flammability. There is a need for economical methods that modify LCO to amend these shortcomings.
This technology is a method for developing ceramic-modified LCO cathodes exhibiting improved operation voltage, specific capacity, and lifetime when tested in liquid electrolytes. Furthermore, this technology is compatible with poly(ethylene oxide) (PEO)-based electrolytes, which increases safety by reducing flammability. This technology represents an economical solution to improving the capacity of LCO lithium ion batteries and facilitates the design of solid-state PE-based electrolyte lithium metal batteries, in order to improve various energy storage applications.
This technology enables improvements in the specific capacity and cycling stability at 4.5V with liquid electrolytes.
Patent Pending
IR CU19216
Licensing Contact: Dovina Qu