Interface-Amorphized Ti3C2@Si/SiOx@TiO2 Anodes with Sandwiched Structures and Stable Lithium Storage
Source abstract
Abstract
A new two-dimensional material (MXene) has been compounded lately with silicon as anodes for lithium-ion batteries to achieve excellent lithium storage performances on account of its unique properties, such as high electrical conductivities, low ion diffusion barrier, and large surface area. However, the exposed silicon particles may lead to fast capacity decaying upon direct contact with the electrolyte. To solve this issue, the porous silicon and SiOx are introduced into Ti3C2Tx to construct a conductive network, and then Ti3C2@Si/SiOx are covered with amorphous TiO2 to make a sandwiched Ti3C2@Si/SiOx@TiO2 composite. Owing to the cooperation of the Ti3C2 matrix, Si/SiOx interlayer, and amorphous TiO2 layer, the reversible capacity of the Ti3C2@Si/SiOx@TiO2 composite with a sandwiched structure can be maintained at 939 mA h g–1 after 100 cycles and enhanced capacity retention capabilities in the initial 10 cycles can be came ture. The combination of these four components also makes the Ti3C2@Si/SiOx@TiO2 composite material a promising application prospect in lithium-ion batteries.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: MXene and MAX Phase Materials · Advancements in Battery Materials · Ferroelectric and Negative Capacitance Devices
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, International Joint Laboratory for Advanced Fiber and Low-dimension Materials, Donghua University, Shanghai 201620, China
Institute of Functional Materials, Donghua University, Shanghai 201620, China
Institute for Superconducting & Electronic Materials, School of Mechanical, Materials, Mechatronics & Biomedical Engineering, Faculty of Engineering and Information Sciences, University of Wollongong, Wollongong, NSW 2500, Australia
Funding
Ministry of Education of the People's Republic of China · Australian Research Council · Donghua University · National Natural Science Foundation of China · State Key Laboratory for Modification of Chemical Fibers and Polymer Materials · Shanghai Institutions of Higher Learning · International Joint Laboratory for Advanced fiber and Low-dimension Materials
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