Publications by authors named "Yue-Xian Song"
Article Synopsis
- Zn anodes struggle with issues like poor reversibility and stability due to irregular dendrite growth and self-corrosion.
- The introduction of 1-ethyl-3-methylimidazolium acetate (EMImAc) improves these issues by modifying the solvation environment and creating a protective electrical double layer on the anode.
- This leads to a remarkable cycling lifespan of 7000 hours and 61.3% zinc utilization in Zn/Zn symmetric cells, showcasing the potential of ionic liquid additives for enhancing zinc battery performance.
The irreversibility and low utilization of Zn anode stemming from the corrosion and dendrite growth have largely limited the commercialization of aqueous zinc batteries. Here, a carbonyl-rich polymer interphase of zinc polyacrylate (ZPAA) is spontaneously in-situ constructed on Zn anode to address the above-mentioned dilemmas. The ZPAA interlayer enables fast transport kinetics of Zn and tailors the interfacial electric field for realizing the uniform Zn deposition due to superior zincophilicity, high Zn transference number and inherent ion-diffusion channel.
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- Zinc anodes in aqueous zinc-ion batteries often face issues like uncontrolled dendrite formation due to uneven electric fields and the buildup of insulating by-products.
- A proposed solution involves using an additive called 1-butyl-3-methylimidazolium hydrogen sulfate (BMIHSO) to improve zinc deposition and minimize harmful by-product formation on the anode surface.
- This approach results in significantly enhanced cycling stability for the zinc anode, achieving over a year of use with high efficiency and capacity during operation.
Article Synopsis
- Improving fast-charging and energy storage for electric vehicles can help reduce range anxiety, and nanostructured electrode materials are key to this advancement.
- Current methods for producing these materials are complex and yield limited amounts, prompting the development of a new, more efficient approach for synthesizing CoS nanoparticles.
- This method enables mass production of high-performance anode materials for sodium-ion batteries, achieving impressive discharge capacities even at high current densities, thanks to a unique surface area that enhances sodium-ion diffusion and reduces structural damage.
Article Synopsis
- A single-crystalline Ni-rich cathode (SC-NCM) offers better capacity retention for advanced solid-state lithium batteries (SSLBs) but faces interfacial instability during cycling.
- *To improve this stability, Li PO is used to coat SC-NCM (resulting in L-NCM) through atomic layer deposition, which minimizes unwanted reactions.
- *In situ atomic force microscopy (AFM) shows that the coating helps maintain a stable structure on the cathode during cycling, enhancing cycling stability and rate performance of the battery.
All-carbon graphdiyne (GDY)-based materials have attracted extensive attention owing to their extraordinary structures and outstanding performance in electrochemical energy storage. Straightforward insights into the interfacial evolution at GDY electrode/electrolyte interface could crucially enrich the fundamental comprehensions and inspire targeted regulations. Herein, optical microscopy and atomic force microscopy monitoring of the GDY and N-doped GDY electrodes reveal the interplay between the solid electrolyte interphase (SEI) and Li deposition.
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- Sulfide-based solid-state electrolytes (SSEs) paired with alloy anodes are gaining attention for all-solid-state batteries (ASSBs) as they can potentially improve lithium (Li) anode performance.* -
- Atomic force microscopy reveals how Li precipitation forms and accumulates on an Li electrode, showing the dynamic nanoscale processes involved in charge and discharge cycles.* -
- The study highlights the role of a flexible solid electrolyte interphase (SEI) on Li-indium alloy anodes, which protects the electrode and aids in Li deposition, providing insights for enhancing alloy-based ASSBs.*
Article Synopsis
- * Using atomic force microscopy, researchers monitored the formation of a hybrid interphase layer on LiNiCoMnO cathode particles in real-time and examined its mechanical properties throughout the battery cycling process.
- * The research identifies key components like LiF and LiCO within the cathode interphase layer and highlights how changes in these components contribute to battery degradation, emphasizing the need for a stable interphase to enhance SSLB performance.
Unstable electrode/solid-state electrolyte interfaces and internal lithium dendrite penetration hamper the applications of solid-state lithium-metal batteries (SSLMBs), and the underlying mechanisms are not well understood. Herein, in situ optical microscopy provides insights into the lithium plating/stripping processes in a gel polymer electrolyte and reveals its dynamic evolution. Spherical lithium deposits evolve into moss-like and branch-shaped lithium dendrites with increasing current densities.
View Article and Find Full Text PDFThe hybrid nanocomposites of zero-valent iron loaded the activated carbon derived from the corn stalk (ZVI@ACCS) was prepared and used to remove the antibiotics of tetracycline (TC), oxytetracycline (OTC) and chlortetracycline (CTC) from aqueous solution. The adsorption amounts of three antibiotics (103.1 mg g for CTC, 72.
View Article and Find Full Text PDFMolybdenum disulfide is considered one of the most promising anodes for lithium-ion batteries due to its high specific capacity; however, it suffers from an unstable solid electrolyte interphase. Understanding its structural evolution and reaction mechanism upon charging/discharging is crucial for further improvements in battery performance. Herein, the interfacial processes of solid electrolyte interphase film formation and lithiation/delithiation on ultra-flat monolayer molybdenum disulfide are monitored by in situ atomic force microscopy.
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