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Published on: November 11, 2013
Recent progress in Si/Ti3C2Tx MXene anode materials for lithium-ion batteries
Xinyu Jiang1, Chaoyang Tang2, Xinchi Zhou1
1School of Energy Sciences and Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu Province, China.
Insights
Researchers explore silicon-carbide MXene composites for advanced lithium-ion batteries (LIBs). These materials offer high energy density for wearable cardiovascular disease monitoring devices, addressing silicon anode challenges.
Area of Science:
- Materials Science
- Electrochemistry
- Nanotechnology
Background:
- Cardiovascular diseases (CVDs) necessitate continuous monitoring via wearable devices.
- Wearable devices require efficient portable energy storage, such as lithium-ion batteries (LIBs).
- High-energy-density LIBs are crucial for durable and consistent physiological signal monitoring.
Purpose of the Study:
- To review silicon-based anodes for LIBs, highlighting their potential and challenges.
- To explore the advantages of two-dimensional transition metal carbide (MXene) materials.
- To examine recent advancements in Si/Ti3C2Tx MXene anode materials for high-energy LIBs.
Main Methods:
- Systematic review of silicon anode properties and challenges.
- Analysis of MXene material characteristics, including structure, conductivity, and ion transport.
- Discussion of synthesis methods for Si/Ti3C2Tx MXene nanocomposites.
Main Results:
- Silicon anodes offer high theoretical capacity but suffer from volume expansion and slow kinetics.
- MXenes provide unique structural, conductive, and ion-transport advantages for anodes.
- Si/Ti3C2Tx MXene composites show promise for enhancing LIB performance.
Conclusions:
- Si/Ti3C2Tx MXene nanocomposites are a promising direction for next-generation high-energy LIBs.
- Further research into synthesis methods is needed to overcome challenges in creating these advanced materials.
- This review provides a foundation for designing superior materials for energy storage in wearable health devices.
Abstract:
Cardiovascular diseases (CVDs) are a major global health issue, causing significant morbidity and mortality worldwide. Early diagnosis and continuous monitoring of physiological signals are crucial for managing cardiovascular diseases, necessitating the development of lightweight and cost-effective wearable devices. These devices should incorporate portable energy storage systems, such as lithium-ion batteries (LIBs). To enhance the durability and consistency of the monitoring systems, there is a need to develop LIBs with high energy density. Silicon-based materials hold great promise for future LIBs anodes due to their high theoretical capacity and cost-efficiency. Despite their potential, silicon-based materials encounter challenges like substantial volume fluctuations and sluggish kinetics. Transition metal carbide, MXene, features a two-dimensional structure, offering advantages in silicon-based anode materials. This review initially presents the potential of silicon-based anodes and then addresses their challenges. Subsequently, the advantages of MXene are systematically reviewed, including unique structure, abundant surface functional groups, excellent electrical conductivity, and excellent ion transport performance. Next, the detailed discussion covers recent advancements in Si/Ti3C2Tx MXene anode materials for LIBs, with a focus on their synthesis methods. Finally, the challenges and future perspectives of synthesizing Si/Ti3C2Tx nanocomposites are examined, aiming to provide a foundational resource for designing advanced materials for high-energy LIBs.
