当前位置: X-MOL 学术Solid State Ionics › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Influence of Al layer thickness on Li6.6Al0.05La3Zr1.75Nb0.25O12 solid electrolyte | Li anode interface in all-solid-state batteries
Solid State Ionics ( IF 3.0 ) Pub Date : 2021-08-25 , DOI: 10.1016/j.ssi.2021.115736
E.A. Il'ina 1 , K.V. Druzhinin 1, 2 , E.D. Lyalin 1, 2 , B.D. Antonov 1 , A.A. Pankratov 1 , E.G. Vovkotrub 1 , V.I. Pryakhina 2
Affiliation  

The critical issue of the interface between Li anode and solid electrolyte based on Li7La3Zr2O12 can be addressed by using a buffer layer. Ceramic samples were covered with Al layers of various thickness – 10, 50 and 150 nm using vacuum deposition. It was established that the deposition of 150 nm Al reduces interface resistance between solid electrolyte and Li and leads to a faster formation of the stable interface at room and elevated temperatures. The influence of constant current flow and heating on the tight and uniform interface formation between Li6.6Al0.05La3Zr1.75Nb0.25O12 and Li was studied. Heating leads to an increase in the contact area between Li and Al, which cannot be easily achieved at low temperatures even under applied current. According to X-ray diffraction method, Raman spectroscopy and scanning electron microscopy, no visible degradation processes occurred during the storage and operation of symmetric cells. Aluminum deposition with the layer thickness of 150 nm on the ceramic surface with preheating improves the contact with Li anode and can be used to create all-solid-state lithium power sources.



中文翻译:

Al层厚度对Li6.6Al0.05La3Zr1.75Nb0.25O12固体电解质的影响| 全固态电池中的锂负极界面

锂负极和基于 Li 7 La 3 Zr 2 O 12 的固体电解质之间界面的关键问题可以通过使用缓冲层来解决。陶瓷样品使用真空沉积用不同厚度的铝层覆盖 - 10、50 和 150 nm。已确定 150 nm Al 的沉积降低了固体电解质和 Li 之间的界面电阻,并导致在室温和高温下更快地形成稳定界面。恒流和加热对Li 6.6 Al 0.05 La 3 Zr 1.75 Nb 0.25 O 12紧密均匀界面形成的影响和李被研究了。加热会导致 Li 和 Al 之间的接触面积增加,即使在施加电流的情况下,这在低温下也不容易实现。根据X射线衍射方法、拉曼光谱和扫描电子显微镜,对称电池在储存和运行过程中没有发生可见的降解过程。预热后在陶瓷表面沉积 150 nm 层厚的铝改善了与锂负极的接触,可用于制造全固态锂电源。

更新日期:2021-08-26
down
wechat
bug