Journal
NATURE COMMUNICATIONS
Volume 14, Issue 1, Pages -Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41467-023-35982-7
Keywords
-
Categories
Ask authors/readers for more resources
By regulating the nucleation energy, crystallites within glass ceramics can self-organize into hetero-nanodomains during the solid-state reaction, resulting in numerous closely spaced grain boundaries with enriched charge carriers, enabling superior Li+-conduction.
Easy-to-manufacture Li2S-P2S5 glass ceramics are the key to large-scale all-solid-state lithium batteries from an industrial point of view, while their commercialization is greatly hampered by the low room temperature Li+ conductivity, especially due to the lack of solutions. Herein, we propose a nanocrystallization strategy to fabricate super Li+-conductive glass ceramics. Through regulating the nucleation energy, the crystallites within glass ceramics can self-organize into hetero-nanodomains during the solid-state reaction. Cryogenic transmission electron microscope and electron holography directly demonstrate the numerous closely spaced grain boundaries with enriched charge carriers, which actuate superior Li+-conduction as confirmed by variable-temperature solid-state nuclear magnetic resonance. Glass ceramics with a record Li+ conductivity of 13.2mS cm(-1) are prepared. The high Li+ conductivity ensures stable operation of a 220 mu m thick LiNi0.6Mn0.2Co0.2O2 composite cathode (8mAh cm(-2)), with which the all-solid-state lithium battery reaches a high energy density of 420Wh kg(-1) by cell mass and 834WhL(-1) by cell volume at room temperature. These findings bring about powerful new degrees of freedom for engineering super ionic conductors.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available