Open AccessMOF derived carbon with ultra-high specific surface area and pore volume for lithium-ion capacitor cathodes
Author(s) -
Jian Yang,
Teng Li,
Kashif Khan,
Junxiang Li,
Mengqiang Wu
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/844/1/012003
Subject(s) - supercapacitor , lithium (medication) , capacitor , materials science , power density , cathode , carbon fibers , nanotechnology , electrode , specific surface area , optoelectronics , capacitance , composite material , power (physics) , chemistry , electrical engineering , composite number , voltage , medicine , physics , biochemistry , engineering , quantum mechanics , endocrinology , catalysis
Traditional supercapacitors have been studied extensively because of their high-power characters. However, their poor energy density severely limits its future applications. Different from the traditional supercapacitors, lithium-ion capacitors combine the high-power density of double-layer capacitors with the high energy density of lithium-ion batteries. In order to obtain the lithium-ion capacitors with such high performance, new electrode materials are inevitable. Herein, we use the metal-organic framework (MOF) technique to synthesize nano-sheets carbon-based materials with a large specific surface area and large pore volume. This new carbon-based material shows a very high specific capacity and long cycle life when being utilized in the cathode of lithium-ion capacitor. This method introduces a novel approach to the synthesis of high-specific surface activated carbon for lithium-ion capacitors.