No Evidence of Benefits of Host Nano-Carbon Materials for Practical Lithium Anode-Free Cells
Bingxin Zhou,
Baizeng Fang,
Ivan Stoševski,
Arman Bonakdarpour,
David P. Wilkinson
Affiliations
Bingxin Zhou
Department of Chemical & Biological Engineering, The Clean Energy Research Center, University of British Columbia, 2360 East Mall, Vancouver, BC V6T 1Z3, Canada
Baizeng Fang
Department of Chemical & Biological Engineering, The Clean Energy Research Center, University of British Columbia, 2360 East Mall, Vancouver, BC V6T 1Z3, Canada
Ivan Stoševski
Department of Chemical & Biological Engineering, The Clean Energy Research Center, University of British Columbia, 2360 East Mall, Vancouver, BC V6T 1Z3, Canada
Arman Bonakdarpour
Department of Chemical & Biological Engineering, The Clean Energy Research Center, University of British Columbia, 2360 East Mall, Vancouver, BC V6T 1Z3, Canada
David P. Wilkinson
Department of Chemical & Biological Engineering, The Clean Energy Research Center, University of British Columbia, 2360 East Mall, Vancouver, BC V6T 1Z3, Canada
Nano-carbon-based materials are widely reported as lithium host materials in lithium metal batteries (LMBs); however, researchers report contradictory claims as to where the lithium plating occurs. Herein, the use of pure hollow core-carbon spheres coated on Cu (PHCCSs@Cu) to study the lithium deposition behavior with respect to this type of structure in lithium anode-free cells is described. It is demonstrated that the lithium showed some initial and limited intercalation into the PHCCSs and then plated on the external carbon walls and the top surface of the carbon coating during the charging process. The unfavorable deposition of lithium inside the PHCCSs is discussed from the viewpoint of lithium-ion transport and lithium nucleation. The application potential of PHCCSs and the data from these LMB studies are also discussed.
