2022年1月1日 · X-ray diffraction (XRD) is a well-established tool for identifying the crystal structure and phase evolution of electrodes during charge/discharge cycling. Diffraction patterns containing structural information are generated by X-ray scattering of the long-range ordered atoms in a crystal.

2016年9月1日 · Experimental results demonstrate that the NbS 2 nanosheets exhibit high electrochemical performance for Na + storage, low charge-transfer resistance and excellent cycling stability. The sodiation/desodiation mechanisms in NbS 2 nanosheets have been studied by using in situ X-ray diffraction (XRD). 2. Experimental. 2.1. Material synthesis.

2023年1月1日 · In situ XRD is a versatile technique to trace the structural variation, phase transitions, and lattice constant evolution of SIB electrodes during the charging/discharging process, which provides important data support for the operation and failure mechanism studies of …

Sodium-ion batteries (SIBs) are among the most cost-effective and environmentally benign electrical energy storage devices required to match the needs of commercialized...

Transition metal phosphates (TMPs) are considered as promising anode materials for sodium-ion batteries (SIBs) due to their high theoretical capacity (up to 1000 mAh g⁻¹)...

2020年7月3日 · Here, we demonstrate a new type of zero-strain cathode for reversible intercalation of beyond-Li + ions (Na +, K +, Zn 2+, Al 3+) through interface strain engineering of a 2D multilayered VOPO 4...

2020年9月5日 · Layered transition metal oxides (NaxMO2, M = Fe, Mn, Ni, Co, Cr and their combinations) are promising cathode materials for SIBs due to their high theoretical capacity and simple structure. Interlayer glide and phase transitions are more prone to occur in sodium transition metal layered oxides than in their lithium counterparts.

As for ZMA, in-situ XRD technique can identify byproducts formation and measure crystal planes changes during the plating/stripping process. ... The research interest in aqueous zinc-ion...

2017年7月4日 · 研究人员通过水热法制备得到了均匀、无碳的NVPF-NTP，将其用作SIBs正极材料时，发现在4.01V和3.60 V vs Na + /Na处存在两个放电平台，比容量可达127.8 mAh/g，接近其理论比容量130 mAh/g。 NVPF-NTP与NASICON型正极材料相比在理论容量上提升了23.4 %，在目前所报道的SIBs正极材料里最高。 半电池测试结果显示NVPF-NTP具备优异的倍率容量和超长循环稳定性，在低温环境下，仍表现优异。 当与负极材料（Sb-CNT）组成全电池时，表现出了优 …

2023年11月20日 · Herein, the three most wide and important synchrotron radiation techniques used in battery research were systematically reviewed, namely X-ray absorption fine structure (XAFS) spectroscopy, small-angle X-ray scattering (SAXS), and X-ray diffraction (XRD).