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A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
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For electrode reversibility to be maintained, all the reactants and products involved in the half-reaction must be present at the electrode. There are several types of reversible electrodes (half-cells).In metal-metal-ion electrodes, a metal balances electrochemically with a solution of its own ions. Examples are Cu2+|Cu and Zn2+|Zn. Metals that react with the solvent, like group 1 and most group 2 metals, which react with water, and zinc, which reacts with aqueous acidic solutions, cannot be...
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Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
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通过削来定制复合微结构以干处理硫化物为基础的固态电池阴极

Finn Frankenberg1, Carina A Heck1, Maximilian Kissel2

  • 1Technische Universität Braunschweig, Institute for Particle Technology, Volkmaroder Straße 5, 38104, Braunschweig, Lower Saxony, Germany.

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概括
此摘要是机器生成的。

机械处理对固态电池阴极复合材料产生重大影响. 通过控制微观结构和异构接触,优化行星球磨提高了性能,但过度的能量可能是有害的.

关键词:
DEM模拟化学工艺工程微观结构过程 结构 属性固态电池

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科学领域:

  • 材料科学
  • 电化学
  • 化学工程

背景情况:

  • 固态电池对于下一代储能至关重要.
  • 复合电极,结合固体电解质和活性材料,是SSB的关键组成部分.
  • 机械加工对SSB复合材料性能的影响仍未得到充分研究.

研究的目的:

  • 研究行星球磨削过程中机械过程参数对Li6PS5Cl和LiNi0.83Co0.11Mn0.06O2复合阴极的影响.
  • 了解磨削如何影响微观结构,粒子大小和聚合物形成.
  • 将磨削能量输入与电化学性能相关联.

主要方法:

  • 星球磨砂 Li6PS5Cl 和 LiNi0.83Co0.11Mn0.06O2.
  • 微结构分析 (颗粒大小,聚合物形成).
  • 单独的元素模拟模型的微观结构演变.
  • 电化学性能测试
  • 干膜的生产和分析.

主要成果:

  • 削会显著改变复合材料的微观结构,影响固体电解质颗粒大小和电解质活性物质的聚合.
  • 通过增加异质接触密度,增加削能量最初会提高电化学性能.
  • 由于Li6PS5Cl结晶体大小减少和LiNi0.83Co0.11Mn0.06O2应变增加,过多的磨削能量会对性能产生负面影响.
  • 干薄膜生产可以部分补偿非优化削,但精确的控制至关重要.

结论:

  • 机械加工,特别是行星球磨,是确定SSB复合材料正极的性能和性能的一个关键因素.
  • 优化削参数对于最大化电化学性能至关重要.
  • 了解和控制削能量,微观结构和材料特性之间的相互作用对于推进SSB技术至关重要.