title: Unravelling the Role of Electrochemically Active FePO4Coating by Atomic Layer Deposition for Increased High-Voltage Stability of LiNi0.5Mn1.5O4Cathode Material.
abstract: Ultrathin amorphous FePO4coatingderived by atomic layer deposition (ALD) is used to coat the 5 V LiNi0.5Mn1.5O4cathode material powders, which dramatically increases the capacity retention of LiNi0.5Mn1.5O4. It is believed that the amorphous FePO4layer could act as a lithium-ions reservoir and electrochemically active buffer layer during the charge/discharge cycling, helping achieve high capacities in LiNi0.5Mn1.5O4, especially at high current densities.
authors.affiliation: Department of Mechanical and Materials Engineering University of Western Ontario London ON Canada N6A 5B9.
authors.forename: Biwei
authors.initials: B
authors.lastname: Xiao
authors.affiliation: Department of Mechanical and Materials Engineering University of Western Ontario London ON Canada N6A 5B9.
authors.forename: Jian
authors.initials: J
authors.lastname: Liu
authors.affiliation: Department of Mechanical and Materials Engineering University of Western Ontario London ON Canada N6A 5B9.
authors.forename: Qian
authors.initials: Q
authors.lastname: Sun
authors.affiliation: Department of Mechanical and Materials Engineering University of Western Ontario London ON Canada N6A 5B9; Department of Chemistry University of Western Ontario London ON Canada N6A 5B7.
authors.forename: Biqiong
authors.initials: B
authors.lastname: Wang
authors.affiliation: Department of Mechanical and Materials Engineering University of Western Ontario London ON Canada N6A 5B9.
authors.forename: Mohammad Norouzi
authors.initials: MN
authors.lastname: Banis
authors.affiliation: Department of Chemistry University of Western Ontario London ON Canada N6A 5B7.
authors.forename: Dong
authors.initials: D
authors.lastname: Zhao
authors.affiliation: Department of Chemistry University of Western Ontario London ON Canada N6A 5B7.
authors.forename: Zhiqiang
authors.initials: Z
authors.lastname: Wang
authors.affiliation: Department of Mechanical and Materials Engineering University of Western Ontario London ON Canada N6A 5B9.
authors.forename: Ruying
authors.initials: R
authors.lastname: Li
authors.affiliation: Canadian Light Source Saskatoon SK Canada S7N 2V3.
authors.forename: Xiaoyu
authors.initials: X
authors.lastname: Cui
authors.affiliation: Department of Chemistry University of Western Ontario London ON Canada N6A 5B7.
authors.forename: Tsun-Kong
authors.initials: TK
authors.lastname: Sham
authors.affiliation: Department of Mechanical and Materials Engineering University of Western Ontario London ON Canada N6A 5B9.
authors.forename: Xueliang
authors.initials: X
authors.lastname: Sun
keywords: X‐ray absorption spectroscopy; atomic layer deposition; iron phosphate; lithium nickel manganese oxide; lithium‐ion batteries