由硫化物固体电解质启用的无碳高负载阳极
Darren H S Tan1, Yu-Ting Chen1, Hedi Yang1
1Department of NanoEngineering, University of California San Diego, La Jolla, CA 92093, USA.
概括
现在可以使用硫化物固体电解质为离子电池的稳定阳极. 这一突破防止了接口的退化,使得高性能电池具有更高的安全性和寿命.
科学领域:
- 材料科学
- 电化学
- 能量储存
背景情况:
- 阳极为离子电池提供了高的理论容量,但其与液态电解质的界面稳定性不佳.
- 这种不稳定导致连续的界面增长和不可逆转的损失,阻碍了实际应用.
研究的目的:
- 为离子电池开发稳定的微阳极.
- 调查硫化物固体电解质用于接口被动化.
主要方法:
- 使用硫化物固体电解质来使99.9%微阳极的接口被动化.
- 进行了批量和表面特征分析,以分析接口组件.
- 在各种条件下组装和测试微电池.
主要成果:
- 硫化物固体电解质有效消除了连续的界面生长和不可逆转的损失.
- 微充满电池显示了高面积电流密度,广泛的操作温度范围和高面积负载.
- 鉴定证实了微和硫化电解质之间的稳定接口.
结论:
- 硫化物固体电解质使离子电池中的高负载微阳极能够稳定运行.
- 合金的稳定接口和有利的化学性能有助于提高电池性能.
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