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Crystal Growth: Principles of Crystallization01:25

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Crystallization is a phase transformation process in which crystals are precipitated from a supersaturated solution or formed from other sources. During crystallization, atoms or molecules arrange themselves into a well-defined, rigid crystal lattice to minimize energy.
Initiating crystallization involves manipulating the concentration of the solute and the temperature of the solution. Since crystal growth occurs when the ratio of concentration and solubility of the solute in the solvent...
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晶体生长工程用于无金金属板的树.

Guifang Zeng1,2,3, Sharona Horta4, Qing Sun1,2,3

  • 1Catalonia Institute for Energy Research (lREC), Sant Adrià de Besòs, Barcelona, 08930, Spain.

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概括

稀土离子可以在水性离子电池 (AZIB) 中进行受控涂,防止树的生长. 这一战略促进了均的沉积,提高了电池的安全性和循环寿命.

关键词:
水性离子电池水性离子电池表皮轴生长的表皮轴生长.稀土金属是一种稀土金属.螺杆脱位 增长 增长 螺杆脱位阳极是一种阳极.

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Fabrication of Schottky Diodes on Zn-polar BeMgZnO/ZnO Heterostructure Grown by Plasma-assisted Molecular Beam Epitaxy
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科学领域:

  • 电化学 电化学 电化学
  • 材料科学 材料科学 材料科学
  • 储能 储能 储能 储能 储能 储能

背景情况:

  • 水性离子电池 (AZIBs) 面临的挑战是由于 (Zn) 树突在阳极涂层过程中不受控制的生长,影响安全性和寿命.
  • 当前的Zn涂层通常沿着镜方向遵循2D生长模式,导致六角形血小板,促进树岩的形成.

研究的目的:

  • 开发一种使用稀土离子的电解质工程策略,以调节Zn涂层并抑制AZIBs中的树生长.
  • 调查稀土离子对Zn涂层调节的机制及其对阳极形态和电池性能的影响.

主要方法:

  • 用稀土离子进行电解质工程.
  • 多尺度实验分析 (例如,显微镜,光谱).
  • 计算建模 (例如密度函数理论).

主要成果:

  • 稀土离子优先吸附到 Zn 的镜面上,抑制横向生长.
  • 板被重定向到沿着[0001]轴的螺丝脱位驱动的增长.
  • 实现了无树,密集和均的 Zn 层,改善了循环稳定性和排放深度.

结论:

  • 这项研究挑战了这种假设,即状的抑制需要以 (0002) 为导向的生长.
  • 建立了一个可扩展的策略,在AZIB中建立稳定,无树的Zn阳极.
  • 提供了对涂层动态的新机制性见解.