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相关概念视频

Batteries and Fuel Cells03:12

Batteries and Fuel Cells

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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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Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
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基于石榴石的全固态电池的增强高温循环稳定性,使用多功能催化剂缓冲层.

Leqi Zhao1, Yijun Zhong1, Chencheng Cao1

  • 1WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth, WA, 6102, Australia.

Nano-micro letters
|February 19, 2024
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概括

这项研究引入了一种阻燃添加剂,以稳定固态离子电池. 新的缓冲层增强了高性能能量存储的热稳定性和安全性.

关键词:
阴极电解质中间层是阴极电解质的中间层.骑自行车的稳定性 骑自行车的稳定性阻燃剂添加剂 阻燃剂添加剂接口稳定性 接口稳定性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
  • 储能 储能 储能 储能 储能 储能

背景情况:

  • 固态电池比传统的离子电池提供了更好的安全性.
  • 电极和电解质之间的不稳定接口仍然是固态电池性能的一个关键挑战.
  • 基于石榴石的全固态离子电池 (ASSLB) 中的聚合物中间层改善了接口,但引起了热稳定性的担忧.

研究的目的:

  • 为基于石榴石的ASSLB开发一个热稳定和阻燃的缓冲层.
  • 为了研究多功能阻燃添加剂对电极-电解质接口的影响.
  • 提高ASSLBs的高温性能和安全性.

主要方法:

  • 将三酸添加剂纳入聚乙烯氧化物中作为缓冲层.
  • 在高温下进行电化学稳定性测试和循环性能评估.
  • 接口热稳定性分析和可燃性测试.
  • 材料的表征,以阐明稳定机制.

主要成果:

  • 达到高容量保留:在60°C的100个循环后98.5%,在80°C的50个循环后89.6%.
  • 已证明安全和稳定的循环运行到100°C.
  • 确定了改善界面热稳定性的机制.

结论:

  • 多功能阻燃添加剂可以有效地应对高温ASSLB的接口挑战.
  • 拟议的缓冲层显著提高了热稳定性和安全性.
  • 在ASSLB中优化热管理对于安全的大规模储能应用至关重要.