A facile coprecipitation approach for synthesizing LaNi0.5Co0.5O3 as the cathode for a molten-salt lithium–oxygen battery
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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14
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Faraday Discussions, Volume 248, pp. 327-340
Abstract
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 LaNi0.5Co0.5O3 (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−2. 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 LiNO3–KNO3 molten salt enhancing the stability of the LOB operating at high temperature.Description
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Qiu, Q, Wang, J, Yao, P & Li, Y 2024, 'A facile coprecipitation approach for synthesizing LaNi 0.5 Co 0.5 O 3 as the cathode for a molten-salt lithium–oxygen battery', Faraday Discussions, vol. 248, pp. 327-340. https://doi.org/10.1039/D3FD00078H