Affiliation:
1. State Key of Metal Matrix Composites, School of Materials Science and Engineering Shanghai Jiao Tong University Shanghai 200240 P. R. China
2. China Huaneng Clean Energy Research Institute Beijing 102209 P. R. China
Abstract
AbstractMXene nanosheets and ordered porous carbons both have their own advantages and disadvantages. Assembling and combining the advantages of the two will be a good choice for battery electrode hosts of active materials. In this work, an electrostatic separation‐adsorption strategy is proposed to realize the ordered alternating self‐assembly of MXene nanosheets and ordered porous carbon (MPOC), obtaining a unique wall‐like porous material with a high conductivity and interconnected porous nanostructure, which strengthens the transfer rate of electrons and ions simultaneously. Meanwhile, the introduction of N‐doping from porous carbon into MPOC prolongs the cycle life. When use red phosphorus (RP) as active materials, the MPOC@RP anode exhibited high‐capacity output (2454.3 and 2408.1 mAh g−1 in lithium‐ion batteries (LIBs) and sodium‐ion batteries (SIBs) at 0.1 C) and long cycle life (the decay rates per cycle of 0.028% and 0.036% after 1500 and 1200 cycles at 2 C in LIBs and SIBs respectively). The successful application in RP anodes displays great potential in other electrode materials such as silicon, sulfur, selenium, and so on. Meanwhile, this strategy is also effective to design other composites materials like MXene and carbon nanotubes, MXene and Graphene, and so on.
Funder
National Natural Science Foundation of China
China Postdoctoral Science Foundation
Subject
Biomaterials,Biotechnology,General Materials Science,General Chemistry