Sowing Silver Seeds within Patterned Ditches for Dendrite-Free Lithium Metal Batteries.

ABSTRACT: The interfacial instability of lithium (Li) metal is one of the critical challenges, which hinders the application of rechargeable Li metal batteries (LMBs). Designing facile and effective surface/interface is extremely important for practical LMBs manufacturing. Here, a highly stable Li anode with silver nanowires sowed in the patterned ditches via a simple calendaring process is developed. The remarkably increased electroactive surface area and the superior lithiophilic Ag seeds enable Li stripping/plating mainly inside the ditches. Benefitting from such unique structural design, the ditches-patterned and Ag-modified composite Li anode (D-Ag@Li) achieves excellent cyclability under 2 mA cm^-2 / 4 mAh cm^-2 over 360 h cycling with low nucleation overpotential of 16 mV.

SUBMITTER: Wang H 

PROVIDER: S-EPMC8292901 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature