DataVXACS Applied Materials & InterfacesPaper
journal article·2019-01-09

Lithium Titanate Matrix-Supported Nanocrystalline Silicon Film as an Anode for Lithium-Ion Batteries

Zhaozhe Yu, Bingbing Tian, Ying Li, Dianyuan Fan, Daoguo Yang, Guisheng Zhu, Miao Cai, Dong Liang Yan

ACS Applied Materials & Interfaces· Volume 11· Issue 1
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Source abstract

Abstract

A facile preparation method of a Si-based anode with excellent cycling property is urgently required in the process of preparing lithium-ion batteries (LIBs). Here, lithium titanate (LTO) matrix-supported nanocrystalline Si film is prepared by radio frequency (RF) magnetron cosputtering utilizing LTO and silicon (Si) targets as the sputtering source. LTO-supported nanocrystalline Si film electrodes revealed a repeatable specific capacity of 1200 mA h g–1 at 150 mA g–1 with a maintenance of more than 75% even after 800 cycles. The remarkable electrochemical properties of the LTO–Si composite films could be attributed to the LTO matrix, preventing the electrolyte from directly making contact with the nanocrystalline Si materials, alleviating the stress of the periodic volume change and further providing efficient and rapid pathways for lithium-ion transport. The results suggest that Si-based LTO composite films are prospective anodes for LIBs, with high capacities and long cycling stabilities.
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Research context

Energy storageNanomaterialsComposites

OpenAlex topics: Advancements in Battery Materials · Extraction and Separation Processes · Advanced Battery Technologies Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

SZU-NUS Collaborative Innovation Center for Optoelectronic Science & Technology, International Collaborative Laboratory of 2D Materials for Optoelectronic Science and Technology of Ministry of Education, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China

Guangxi Key Laboratory of Manufacturing Systems and Advanced Manufacturing Technology, Guilin University of Electronic Technology, Guilin 541004, PR China

Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province, Shenzhen University, Shenzhen 518060, China

Funding

Natural Science Foundation of Guangxi Province · National Natural Science Foundation of China · Shenzhen Science and Technology Innovation Committee · Department of Science and Technology of Guangxi Province · Guangxi Key Laboratory of Manufacturing Systems Foundation

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