A5092279477- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Supercapacitor Materials and Fabrication
- Semiconductor materials and devices
- Advanced Battery Technologies Research
- Extraction and Separation Processes
Chengdu University
2024
Sichuan University
2023
Silicon-based anodes are becoming promising materials due to their high specific capacity. However, the intrinsically large volume change brought about by alloying reaction results in crushing of active particles and destruction electrode structure, which severely limits its practical application. Various structured modified silica-based exhibit improved cycling stability demonstrated ability mitigate changes through interfacial binder strategies. issue silicon-based remains. Herein, we...
The energy density of lithium metal batteries (LMBs) is much higher than that lithium-ion (LIBs). It considered an effective development for the next generation batteries. However, LMBs has been limited by destructive dendrites formed during cycling and unstable solid electrolyte interface (SEI). Current collectors with nanoarrays, which have extensively studied in recent years, are improving stability LMBs. Here we investigated three mechanisms action based on different nanoarrays as...
Boosting the anion redox reaction opens up a possibility of further capacity enhancement on transition-metal-ion redox-only layer-structured cathodes for sodium-ion batteries. To mitigate deteriorating impact internal and surface structure cathode caused by inevitable increase in operation voltage, probing solution to promote bulk-phase crystal stability chemistry environment facilitate electrochemical performance is key issue. A dual modification strategy establishing an hybrid activation...
The exploration of cost-effective and scalable methods to fabricate Si anodes with high capacity cycle stability is crucial for advancing their practical applications. Si/graphite composites have emerged as one the most promising candidates commercialization. Various manufacturers use different techniques such ball milling, chemical vapor deposition, sol–gel, spray drying, among others, compound graphite, but there no standardized approach yet. This study investigates inexpensive efficient...
Single-crystal and polycrystalline structures are the two main structural forms of Ni-rich layered cathode for lithium-ion batteries. The difference is closely related to electrochemical performance thermal stability, but its internal mechanism unclear worthy further exploration. In this study, both single-crystal LiNi0.83Co0.12Mn0.05O2 cathodes were prepared by adjusting calcination temperature mechanical post-treatment, respectively. Systematic comparisons made assess effects different...
The significance of high-nickel layered oxides in lithium-ion batteries is self-evident, with LiNi0.92Co0.05Mn0.03O2 (NCM9253) emerging as a promising candidate for high-energy-density batteries. Enhancing its cycling stability and rate capability crucial promoting the widespread adoption electric vehicles improving user experience portable devices. Here, employing density functional theory (DFT), it has been established that Nb preferentially incorporates into bulk phase material. This...