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相关概念视频

Batteries and Fuel Cells03:12

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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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强大的接口和降低的操作压力,通过共同干工艺实现稳定的全固态电池的稳定.

Dong Ju Lee1, Yuju Jeon1, Jung-Pil Lee2

  • 1Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA.

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概括

一个新的干燥工艺通过共同滚动电解质和电极层来增强固态电池的制造. 这种方法产生了薄而坚固的固态电解质层,提高了机械稳定性和电池性能.

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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
  • 可持续制造 可持续制造 可持续制造

背景情况:

  • 干燥加工为全固态电池 (ASSB) 制造提供了一个无溶剂,可持续的途径.
  • 一个关键的挑战仍然是为薄而机械坚固的固态电解质 (SSE) 层开发实用性制造设计.

研究的目的:

  • 开发一种干燥工艺方法,在整个制造和电池操作过程中提高SSE层的机械稳定性.
  • 为了实现同时制造薄SSE层和高负载正电极,使用共技术.

主要方法:

  • 共同卷厚厚的SSE和正电极料,以创建集成的薄膜.
  • 制造的SSE阳性电极膜的物理性能,接口完整性和电化学性能的表征.
  • 使用集成的薄膜,组装和测试一个全固态囊细胞.

主要成果:

  • 同时实现一个统一的,薄的SSE层 (50微米) 和一个高负载正极 (5mAh cm-2).
  • 集成的SSE阳性电极膜在低堆压力 (2MPa) 下表现出增强的物理性能和卓越的循环性 (>500个循环后80%的保留率).
  • 一个完全固态袋式电池实现了高堆水平的特定能量 (310 Wh kg−1) 和能量密度 (805 Wh L−1).

结论:

  • 联合卷干燥工艺通过创建强化和亲密的SSE阳性电极接口,有效地提高SSE层的机械稳定性和性能.
  • 这种综合膜方法对于推进实用,高性能全固态电池至关重要.
  • 证明的袋式电池性能凸显了这种干燥工艺在可扩展和可持续电池制造方面的潜力.