LiCoO₂ Battery Electrode Fabricated by High Deposition-Rate Atmospheric Plasma Spraying for Lithium Battery

Abstract

Lithium cobalt oxide (LiCoO2, LCO) thin-film cathodes are usually prepared with slow deposition rates by sputtering techniques. Atmospheric plasma spraying (APS) is a possible technology for the rapid deposition method replacing sputter deposition to fabricate all-solid-state lithium batteries. This study employed the APS device to rapidly deposit LCO thick films as cathodes with deposition rates exceeding 5,400 nm/min. The results show that the LCO cathodes have presented a specific capacity of 120 mAh/g after being annealed and assembled in a gel polymer electrolyte lithium battery. Furthermore, the LCO cathodes also demonstrated a high areal capacity of 5.65 mAh/cm2, one of the best areal capacity performances. Therefore, APS technology offers a highly competitive approach to commercializing energy storage products.

Thermal Sprayed Protective Coatings for Bipolar Plates of Hydrogen Fuel Cells and Water Electrolysis Cells

“…However, these coating preparations are time-consuming due to the additional drying and sintering processes [55][56][57] compared to APS. Furthermore, several parallel production lines are usually needed to reach a high production capability, leading to increased equipment costs [58]. In contrast, APS offers a cost-effective option for producing BP coatings.…”

“…Varied materials, e.g., rare-earth perovskite oxides, spinel oxides, etc., can be directly deposited on BP substrates using one single APS equipment (no need for extra sintering treatment). Meanwhile, APS has the ability to achieve BP coatings within a few minutes due to the high deposition rate (a few kilograms of feedstock per hour) [58]. In addition, the microstructure and composition of coatings can be precisely controlled by adjusting spraying parameters except for some special specimens (such as extremely dense or porous coatings).…”

Applications of Plasma Technologies in Recycling Processes

“…Plasmas are commonly used in the production processes of LIBs [6,. Both thermal plasmas [278][279][280] and nonthermal plasmas [281][282][283][284][285] are used for these production processes. The recyclability of LIBs is limited, and there are also many challenges that such a process would entail, which include the variety of battery designs and the limitations of current recycling technologies [286,287].…”

Fabrication and Characterization of Plasma Sprayed TiO2 and Li4Ti5O12 Materials as All Active Material Lithium-Ion Battery Electrodes

“…As an example, Chang et al successfully synthesized LTO particles by plasma spraying a precursor containing lithium and titanium, but that powder was subsequently processed and evaluated in a conventional composite electrode [38]. Other recent reports have investigated both LCO and LTO materials experiencing plasma spray conditions during processing [39][40][41]. Relatively thick AAM plasma sprayed electrodes are expected to provide further opportunity as a case with a unique electrode architecture utilizing plasma spray.…”