A facile coprecipitation approach for synthesizing LaNi 0.5 Co 0.5 O 3 as the cathode for a molten-salt lithium-oxygen battery

A facile coprecipitation approach for synthesizing LaNi 0.5 Co 0.5 O 3 as the cathode for a molten-salt lithium-oxygen battery

The cathode of a lithium-oxygen battery (LOB) should be well designed to deliver high catalytic activity and long stability, and to provide sufficient space for accommodating the discharge product. Herein, a facile coprecipitation approach is employed to synthesize LaNi Co O (LNCO) perovskite oxide...

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Veröffentlicht in:Faraday discussions 2024-01, Vol.248, p.327-340
Hauptverfasser: Qiu, Qianyuan, Wang, Jiaqi, Yao, Penghui, Li, Yongdan
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Yao, Penghui
Li, Yongdan
description The cathode of a lithium-oxygen battery (LOB) should be well designed to deliver high catalytic activity and long stability, and to provide sufficient space for accommodating the discharge product. Herein, a facile coprecipitation approach is employed to synthesize LaNi Co O (LNCO) perovskite oxide with a low annealing temperature. The assembled LOB exhibits superior electrochemical performance with a low charge overpotential of 0.03-0.05 V in the current density range of 0.1-0.5 mA cm . The battery ran stably for 119 cycles at a high coulombic efficiency. The superior performance is ascribed to (i) the high catalytic activity of LNCO towards oxygen reduction/evolution reactions; (ii) the increased temperature enabling fast kinetics; and (iii) the LiNO -KNO molten salt enhancing the stability of the LOB operating at high temperature.
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title A facile coprecipitation approach for synthesizing LaNi 0.5 Co 0.5 O 3 as the cathode for a molten-salt lithium-oxygen battery
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