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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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In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries
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通过在固态电池中的快速烧结来构建阴极接口.

Jinhang Chen1, Weiyin Chen1, Bing Deng1

  • 1Department of Chemistry, Rice University, 6100 Main Street, Houston, TX, 77005, USA.

Small (Weinheim an der Bergstrasse, Germany)
|October 11, 2023
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概括
此摘要是机器生成的。

研究人员开发了一种快速烧结方法,为固态电池 (SSB) 创建一个薄而导电的接口. 这通过降低界面电阻来提高SSB的性能和安全性,为实际应用铺平了道路.

关键词:
在LATPP上,你会发现.阴极接口的介面是阴极接口.协同结是一种共同结.基于氧化物的固体电解质.固态电池是一种固态电池.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 电化学 电化学 电化学
  • 电池技术 电池技术

背景情况:

  • 固态电池 (SSB) 与传统的离子电池相比,提供了更高的安全性和能量密度.
  • 基于氧化物的固体电解质 (SE) 因其在空气中的稳定性和不易燃性而受到青.
  • 在SE和阴极之间高的接口电阻阻碍了SSB的性能.

研究的目的:

  • 为高性能氧化物基SSB开发一个亲密和坚固的固体电解质-阴极接口.
  • 研究快速烧结对接口特性和电池性能的影响.
  • 展示一种可扩展的方法来改进SSB接口.

主要方法:

  • 使用快速烧结 (10秒) 制造氧化 (LATP) 和氧化 (LCO) 之间的薄,导电界面.
  • 利用快速的加热和冷却速度来最大限度地减少接口上的副作用和相互扩散.
  • 在室温条件下测试使用厚复合材料阴极的SSB.

主要成果:

  • 在LATP固体电解质和LCO阴极之间成功构建了一个薄的导电介面.
  • 快速烧结有效地限制了有害的副作用和相互扩散.
  • 在室温下,SSB在200个循环中实现了大约120mAhg-1的高初始容量.
  • 快速烧结方法被证明可以适应其他阴极系统.

结论:

  • 优化固体电解质 - 阴极接口的构建对于实际的固态电池设计至关重要.
  • 快速烧结是一种有效的技术,用于创建坚固和导电的界面.
  • 这种方法为开发高性能,更安全的固态电池提供了有希望的途径.