title: Long-Life Nickel-Rich Layered Oxide Cathodes with a Uniform Li2ZrO3Surface Coating for Lithium-Ion Batteries.
abstract: As nickel-rich layered oxide cathodes start to attract worldwide interest for the next-generation lithium-ion batteries, their long-term cyclability in full cells remains a challenge for electric vehicles. Here we report a long-life Ni-rich layered oxide cathode (LiNi0.7Co0.15Mn0.15O2) with a uniform surface coating of the cathode particles with Li2ZrO3. A pouch-type full cell fabricated with the Li2ZrO3-coated cathode and a graphite anode displays 73.3% capacity retention after 1500 cycles at a C/3 rate. The Li2ZrO3coating has been optimized by a systematic study with different synthesis approaches, annealing temperatures, and coating amounts. The complex relationship among the coating conditions, uniformity, and morphology of the coating layer and their impacts on the electrochemical properties are discussed in detail.
authors.affiliation: Materials Science and Engineering Program & Texas Materials Institute, The University of Texas at Austin , Austin, Texas 78712, United States.
authors.forename: Bohang
authors.initials: B
authors.lastname: Song
authors.affiliation: Materials Science and Engineering Program & Texas Materials Institute, The University of Texas at Austin , Austin, Texas 78712, United States.
authors.forename: Wangda
authors.initials: W
authors.lastname: Li
authors.affiliation: Materials Science and Engineering Program & Texas Materials Institute, The University of Texas at Austin , Austin, Texas 78712, United States.
authors.forename: Seung-Min
authors.initials: SM
authors.lastname: Oh
authors.affiliation: Materials Science and Engineering Program & Texas Materials Institute, The University of Texas at Austin , Austin, Texas 78712, United States.
authors.forename: Arumugam
authors.identifier: http://orcid.org/0000-0003-0237-9563
authors.initials: A
authors.lastname: Manthiram
keywords: Li2ZrO3 surface coating; full cells; layered oxide cathodes; lithium-ion batteries; long-term cyclability; nickel-rich oxides