RT Journal Article
SR Electronic
T1 Printable, high-performance solid-state electrolyte films
JF Science Advances
JO Sci Adv
FD American Association for the Advancement of Science
SP eabc8641
DO 10.1126/sciadv.abc8641
VO 6
IS 47
A1 Ping, Weiwei
A1 Wang, Chengwei
A1 Wang, Ruiliu
A1 Dong, Qi
A1 Lin, Zhiwei
A1 Brozena, Alexandra H.
A1 Dai, Jiaqi
A1 Luo, Jian
A1 Hu, Liangbing
YR 2020
UL http://advances.sciencemag.org/content/6/47/eabc8641.abstract
AB Current ceramic solid-state electrolyte (SSE) films have low ionic conductivities (10−8 to 10−5 S/cm ), attributed to the amorphous structure or volatile Li loss. Herein, we report a solution-based printing process followed by rapid (~3 s) high-temperature (~1500°C) reactive sintering for the fabrication of high-performance ceramic SSE films. The SSEs exhibit a dense, uniform structure and a superior ionic conductivity of up to 1 mS/cm. Furthermore, the fabrication time from precursor to final product is typically ~5 min, 10 to 100 times faster than conventional SSE syntheses. This printing and rapid sintering process also allows the layer-by-layer fabrication of multilayer structures without cross-contamination. As a proof of concept, we demonstrate a printed solid-state battery with conformal interfaces and excellent cycling stability. Our technique can be readily extended to other thin-film SSEs, which open previously unexplores opportunities in developing safe, high-performance solid-state batteries and other thin-film devices.