Improved Cycle Life and Stability of Lithium Metal
Anodes through Ultrathin Atomic Layer Deposition Surface Treatments
Eric Kazyak
Kevin N. Wood
Neil P. Dasgupta
10.1021/acs.chemmater.5b02789.s001
https://acs.figshare.com/articles/journal_contribution/Improved_Cycle_Life_and_Stability_of_Lithium_Metal_Anodes_through_Ultrathin_Atomic_Layer_Deposition_Surface_Treatments/2129122
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) Al<sub>2</sub>O<sub>3</sub> layers using atomic layer deposition
(ALD) without air exposure can prevent dendrite formation upon cycling
at a current density of 1 mA/cm<sup>2</sup>. 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.
2015-09-22 00:00:00
Cycle Life
discharge conditions
Li metal foil electrodes
Li ion flux
layer deposition
cycle life
1259 cycles
Lithium Metal Anodes
failure resistance
air exposure
dendrite formation
Ultrathin Atomic Layer Deposition Surface TreatmentsImproving
Al 2O layers
electrode morphology
lithium metal anodes
ALD