摘要
Available onlineSilicon monoxide(SiO)is a promising anode material fo r lithium-ion batteries(LIBs)due to its high theoretical specific capacity(~2400 mAh/g),low working potential(<0.5 V vs.Li^+/Li),low cost,easy synthesis,nontoxicity,abundant natural source and smaller volume expansion than Si.However,low intrinsic electrical conductivity,low initial Coulombic efficiency(ICE)and inevitable volume expansion(~200%)impede its practical application.Here we fabricate SiO/wrinkled MXene composite(SiO-WM)by an electrostatic self-assembly method.Importantly,this method is simple,scalable and taking into account all the issues of SiO.As a result,the SiO-WM exhibits imp roved rate capability,cycling performance and ICE than bare SiO.
基金
supported by the National Natural Science Foundation of China(No.51972198)
Shandong Provincial Science and Technology Key Project(No.2018GGX104002)
Taishan Scholars Program of Shandong Province(No.tsqn201812002)
Independent Innovation Foundation of Shandong University
the State Key Program of National Natural Science of China(Nos.61633015,51532005)
the Young Scholars Program of Shandong University(No.2016WLJH03),the Project of the Taishan Scholar(No.ts201511004)
Shandong Provincial Natural Science Foundation(No.ZR2017MB001)
Discipline Construction of High-Level Talents of Shandong University(No.31370089963078)
1000 Talent Plan program(No.31370086963030)
the National Natural Science Foundation of China(No.21371108)。
