Physical Modeling of Supercapacitors and Lithium-Ion Capacitors

While lithium-ion batteries are the dominant rechargeable devices visible to the public and in the headlines, other electrochemical energy storage technologies will have a complementary role in industrial decarbonization. Supercapacitors, also called electrochemical double-layer capacitors, typically store less energy than lithium-ion batteries, but allow rapid delivery of very high power with high cycling stability. Researchers are increasingly exploring new hybrid devices, such as lithium-ion capacitors (LIC), which can exploit features of both traditional supercapacitors and lithium-ion batteries.