K. Kanamura et al., ELECTROCHEMICAL DEPOSITION OF UNIFORM LITHIUM ON AN NI SUBSTRATE IN ANONAQUEOUS ELECTROLYTE, Journal of the Electrochemical Society, 141(9), 1994, pp. 120000108-120000110
The electrochemical deposition of lithium on an Ni substrate was condu
cted in propylene carbonate (PC) containing 1.0 mol dm-3 LiClO4 (LiClO
4/PC). The morphology of the lithium deposited on the Ni substrate had
the typical dendrite form. The electrodeposition of lithium was then
performed in LiClO4/PC containing 5 x 10(-3) mol dm-3 HF. The lithium
deposited on the Ni substrate in this electrolyte had a hemispherical
form, and irregular shapes were not observed. The color of the Ni elec
trode surface turned to brilliant blue during the electrodeposition of
lithium. This indicates that the lithium surface is very smooth and u
niform. After five discharge and charge cycles, there were no lithium
dendrites on the electrode surface. From these results, it can be conc
luded that the addition of a small amount of HF to the electrolyte is
significantly effective for the suppression to the lithium dendrite fo
rmation.