Thin-Film Lithium Cobalt Oxide for Lithium-Ion Batteries

Zeqing Duan, Yunfan Wu, Jie Lin (), Laisen Wang () and Dong-Liang Peng
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Zeqing Duan: College of Materials, Xiamen University, Fujian 361005, China
Yunfan Wu: College of Materials, Xiamen University, Fujian 361005, China
Jie Lin: College of Materials, Xiamen University, Fujian 361005, China
Laisen Wang: College of Materials, Xiamen University, Fujian 361005, China
Dong-Liang Peng: College of Materials, Xiamen University, Fujian 361005, China

Energies, 2022, vol. 15, issue 23, 1-13

Abstract: Lithium cobalt oxide (LCO) cathode has been widely applied in 3C products (computer, communication, and consumer), and LCO films are currently the most promising cathode materials for thin-film lithium batteries (TFBs) due to their high volumetric energy density and favorable durability. Most LCO thin films are fabricated by physical vapor deposition (PVD) techniques, while the influence of preparation on the materials’ properties and electrochemical performance has not been highlighted. In this review, the dominant effects (heating, substrate, power, atmosphere, etc.) on LCO thin films are summarized, and the LCO thin films fabricated by other techniques (spin coating, sol–gel, atomic layer deposition, pulsed laser deposition, etc.) are outlined. Moreover, the modification strategies including bulk doping and surface coating for powder and thin-film LCO electrodes are discussed in detail. This review may pave the way for developing novel, durable, and high-performance LCO thin films by versatile methods for TFB and other energy storage devices.

Keywords: lithium cobalt oxide; thin film; physical vapor deposition; bulk doping; surface coating (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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