DataVXACS Applied Nano MaterialsPaper
journal article·2024-12-27

SiOx@ZrO2@C Nanospheres as a High-Capacity and Stable Anode Material for Lithium-Ion Batteries

Wenwen Deng, Shaocong Ni, Naiqi Hu, Ying Zhou, Zhong Jin

ACS Applied Nano Materials· Volume 7· Issue 24
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Source abstract

Abstract

Silicon oxide (SiO x ) has been widely studied due to its ultrahigh theoretical specific capacity for lithium storage. However, its inherent low electronic conductivity and large volume change before and after lithium insertion have limited its commercialization. To address this issue, we report the synthesis of SiO x @ZrO 2 @C ternary composite nanospheres by convenient and scalable wet chemistry and sintering processes. In the unique structure of 3D porous SiO x @ZrO 2 @C nanospheres, zirconium oxide (ZrO 2 ) supplies high structural stability, while the amorphous carbon (C) layer helps to form a stable solid–electrolyte interface, suppress volume expansion, and greatly improve the conductivity. Electrochemical measurements demonstrate that the SiO x @ZrO 2 @C nanospheres exhibit a capacity retention of 72.2% after 500 cycles at 500 mA g –1 . At a high current density of 800 mA g –1, the SiO x @ZrO 2 @C nanospheres can still deliver a capacity of 529.1 mAh g –1 . This work provides a promising mass-scale synthesis method for producing SiO x composites and introduces a high-performance anode material for lithium-ion batteries.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storageCeramics & glassesNanomaterialsComposites

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

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

Affiliations

State Key Laboratory of Coordination Chemistry, MOE Key Laboratory of Mesoscopic Chemistry, MOE Key Laboratory of High Performance Polymer Materials and Technology, Jiangsu Key Laboratory of Advanced Organic Materials, Tianchang New Materials and Energy Technology Research Center, Institute of Green Chemistry and Engineering, School of Chemistry and Chemical Engineering

Nanjing University

School of Material Science and Engineering

Suzhou University of Science and Technology

Funding

Fundamental Research Funds for the Central Universities · National Natural Science Foundation of China · Scientific and Technological Innovation Special Fund for Carbon Peak and Carbon Neutrality of Jiangsu Province · Nanjing International Collaboration Research Program · Suzhou Gusu Leading Talent Program of Science and Technology Innovation and Entrepreneurship in Wujiang District

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