%0 Journal Article
%A Kazyak, Eric
%A Wood, Kevin N.
%A Dasgupta, Neil P.
%D 2015
%T Improved Cycle Life and Stability of Lithium Metal
Anodes through Ultrathin Atomic Layer Deposition Surface Treatments
%U https://acs.figshare.com/articles/journal_contribution/Improved_Cycle_Life_and_Stability_of_Lithium_Metal_Anodes_through_Ultrathin_Atomic_Layer_Deposition_Surface_Treatments/2129122
%R 10.1021/acs.chemmater.5b02789.s001
%2 https://acs.figshare.com/ndownloader/files/3762922
%K Cycle Life
%K discharge conditions
%K Li metal foil electrodes
%K Li ion flux
%K layer deposition
%K cycle life
%K 1259 cycles
%K Lithium Metal Anodes
%K failure resistance
%K air exposure
%K dendrite formation
%K Ultrathin Atomic Layer Deposition Surface TreatmentsImproving
%K Al 2O layers
%K electrode morphology
%K lithium metal anodes
%K ALD
%X Improving the cycle life and failure
resistance of lithium metal
anodes is critical for next-generation rechargeable batteries. Here,
we show that treating Li metal foil electrodes with ultrathin (∼2
nm) Al2O3 layers using atomic layer deposition
(ALD) without air exposure can prevent dendrite formation upon cycling
at a current density of 1 mA/cm2. This has the effect of
doubling the lifetime of the anode before failure both under galvanostatic
deep discharge conditions and cyclic plating/stripping of symmetric
Li–Li cells. The ALD treated electrodes can be cycled for 1259
cycles before failure occurs, which is attributed to improved electrode
morphology resulting from homogeneous Li ion flux across the electrode/electrolyte
interface.
%I ACS Publications