Molecular layer deposition of Li-ion conducting "Lithicone" solid electrolytes

被引：32
作者：
Kazyak, Eric [1 ]
Shin, Minjeong [1 ]
LePage, William S. [1 ]
Cho, Tae H. [1 ]
Dasgupta, Neil P. [1 ,2 ]
机构：
[1] Univ Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA
[2] Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48109 USA
来源：
CHEMICAL COMMUNICATIONS | 2020年 / 56卷 / 99期
关键词：
THIN-FILMS; STATE ELECTROLYTES; LITHIUM; BATTERIES; METAL; SURFACE; XPS;
D O I：
10.1039/d0cc06077a
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We demonstrate the fabrication of Li-containing ("lithicone") thin films prepared via molecular layer deposition (MLD) using lithium tert-butoxide and ethylene glycol. X-ray photoelectron spectroscopy reveals that the stoichiometry of the lithicone is Li1.5C2O1.8 (H omitted), with C-O-Li moieties present in the film. The bonding environment of lithicone is distinct from that of lithium carbonate or MLD alucone films. Electrochemical impedance spectroscopy measurements show that annealed lithicone films exhibit room temperature ionic conductivity of 3.6-5 x 10(-8) S cm(-1) with an activation energy of similar to 0.6 eV. The lithicone MLD process provides a pathway to further develop hybrid inorganic-organic Li-ion conducting materials for future battery applications.
引用
收藏
页码：15537 / 15540
页数：4
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