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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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实用全固态电池的高性能,卷对卷制造的支架支持的固体电解质分离器.

Seok Hun Kang1, Hyobin Lee2, Young-Jin Hong3

  • 1Materials and Components Research Division, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeongno, Yuseong-gu, Daejeon, 34129, Republic of Korea.

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研究人员开发了一种薄而坚固的固体电解质分离器 (SES) 用于全固态电池 (ASB). 这一创新使更高的能量密度成为可能,为更安全的下一代储能解决方案铺平了道路.

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所有固态电池都是固态电池.高能量密度,高能量密度.激光钻孔的脚手架是用激光钻孔的卷对卷制造工艺 卷对卷制造工艺固体电解质分离器 固体电解质分离器

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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:

  • 与传统的离子电池 (LIB) 相比,全固态电池 (ASB) 提供了更高的安全性和更高的能量密度潜力.
  • 实际ASB的一个关键挑战是开发能够支持高能量密度的薄,机械稳定的固体电解质分离器 (SES).

研究的目的:

  • 使用可扩展的磁带造方法为高性能ASB制造薄而机械坚固的SES.
  • 评估在原型电池电池中制造的SES的离子导电性,机械性能和性能.
  • 通过模拟来研究脚手架孔隙和孔隙分布对离子运输和涂层行为的影响.

主要方法:

  • 使用磁带造方法制造27微米薄的SES,将Li6PS5Cl固体电解质 (SE) 与激光钻孔的多孔聚胺 (PI) 支架 (69%的多孔性) 结合起来.
  • 对SES的离子导电性 (146 mS cm−2) 和机械性能 (在6%的应变下7.15 MPa的拉伸应力) 的描述.
  • 组装和测试一个LiNi0.83Co0.11Mn0.06O2的Li-In袋式电池,使用制造的SES和对离子流和板的模拟研究.

主要成果:

  • 该SES实现了高离子导电性,并证明了适合卷对卷制造的机械完整性.
  • 原型袋式电池表现出高的重力密度 (322 Wh kg−1) 和体积密度 (571 Wh L−1).
  • 模拟结果强调了脚手架孔隙和孔隙分布在确保均的离子流量和防止涂层方面发挥的关键作用.

结论:

  • 开发出的薄而坚固的SES是高能量密度ASB的可行组件.
  • 可扩展的制造方法,包括4米长的原型,证实了工业规模生产的潜力.
  • 优化脚手架设计对于最大限度地提高ASB中脚手架支持的SES的性能和安全性至关重要.