Sulfonyl Molecules Induced Oriented Lithium Deposition for Long-Term Lithium Metal Batteries.
Angew Chem Int Ed Engl
; 63(13): e202315122, 2024 Mar 22.
Article
em En
| MEDLINE
| ID: mdl-38311601
ABSTRACT
Dendrites growth and unstable interfacial Li+ transport hinder the practical application of lithium metal batteries (LMBs). Herein, we report an active layer of 2,4,6-trihydroxy benzene sulfonyl fluorine on copper substrate that induces oriented Li+ deposition and generates highly crystalline solid-electrolyte interphase (SEI) to achieve high-performance LMBs. The lithiophilic -SO2 - groups of highly crystalline SEI accept the rapidly transported Li+ ions and form a dense inner layer of LiF and Li3 N, which regulate Li+ plating morphology along the (110) crystal surface toward dendrite-free Li anode. Thus, Li||Cu cells with lithiophilic SEI achieve an average deposition efficiency of 99.8 % after 700â
cycles, and Li||Li cells operate well for 1100â
h. Besides, Li||LiNi0.8 Co0.1 Mn0.1 O2 cells with modified SEI exhibit a capacity retention that is 14â
times than that of conventional SEI. Even at -60 °C, Li||Cu cells reach stable deposition efficiency of 83.2 % after 100â
cycles.
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MEDLINE
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En
Ano de publicação:
2024
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Article