Capacitors: A High‐Performance Lithium‐Ion Capacitor Based on 2D Nanosheet Materials (Small 6/2017)

A high-performance lithium-ion capacitors (LIC) based on two dimensional nanosheet materials, made of ZnMn2O4-graphene (ZMO-G) hybrid nanosheets anode and N-doped carbon nanosheets (NCN) cathode is realized by P. S. Lee and co-workers in article number 1602893. The fabricated LIC delivers a high specific energy of 202.8 Wh kg−1 at a power of 180 W kg−1, the specific energy can still remain 98 Wh kg−1 even when the power density reaches as high as 21 kW kg−1.