Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, 52056 Aachen, Germany.
Phys Chem Chem Phys. 2019 Nov 21;21(43):24232-24238. doi: 10.1039/c9cp04792a. Epub 2019 Oct 29.
NASICON-structured materials of the composition LiAlTi(PO) are regarded as solid electrolytes with high Li-ion conductivity applicable in all solid-state batteries. In this study we investigate the migration paths of constituting ions and monovalent charge carriers including K, Na, and, H. The results proof that Li is the most mobile species in the investigated composition and that the formation of intrinsic defects is unlikely. In addition, we find surprisingly low migration energy for oxygen vacancies in the structure of the dedicated Li-ion conductor.
被视为具有高锂离子电导率的固体电解质的 NASICON 结构材料 LiAlTi(PO) 适用于全固态电池。在这项研究中，我们研究了构成离子和单价电荷载流子（包括 K、Na 和 H）的迁移路径。结果证明，在研究的组成中，Li 是最具迁移性的物质，而且形成本征缺陷的可能性不大。此外，我们发现专门的锂离子导体结构中氧空位的迁移能出奇地低。
