In situ formation of micron-scale Li-metal anodes with high cyclability

Journal Article · Wed Jan 01 00:00:00 EST 2014 · ECS Electrochemistry Letters

OSTI ID:1115363

Arruda, Thomas M ^[1]; Lawton, Jamie S ^[1]; Kumar, Amit ^[2]; Unocic, Raymond R ^[1]; Kravchenko, Ivan I ^[1]; Zawodzinski, Thomas A ^[1]; Jesse, Stephen ^[1]; Kalinin, Sergei V ^[1]; Balke, Nina ^[1]

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1. ORNL
2. Oak Ridge National Laboratory (ORNL)

Scanning probe microscopy methods have been used to fabricate and cycle micron-scale Li anodes deposited electrochemically under nanofabricated Au current collectors. An average Li volume of 5 10^8 nm3 was deposited and cycled with 100 % coulombic efficiency for ~ 160 cycles. Integrated charge/discharge values agree with before/after topography, as well as in situ dilatometry, suggesting this is a reliable method to study solid-state electrochemical processes. In this work we illustrate the possibility to deposit highly cyclable nanometer thick Li electrodes by mature SPM and nanofab techniques which can pave the way for inexpensive nanoscale battery arrays.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1115363
• Journal Information: ECS Electrochemistry Letters, Vol. 3, Issue 1
• Country of Publication: United States
• Language: English