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Lithium‐ion capacitors (LICs) are promising electrical energy storage systems for mid‐to‐large‐scale applications due to the high energy and large power output without sacrificing long cycle stability. However, due to the different energy storage mechanisms between anode and cathode, the energy densities of LICs often degrade noticeably at high power density, because of the sluggish kinetics limitation...
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...
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