Dandelion-like NiCo2O4 hollow microspheres as enhanced cathode catalyst for Li-oxygen batteries in ambient air
作者： Lu Zou , Yuexing Jiang , Junfang Cheng , Yingpeng Gong , Bo Chi
DOI: 10.1016/J.ELECTACTA.2016.08.151
关键词:
摘要: Abstract The high overpotentials of oxygen reduction reaction (ORR) and evolution (OER) in the air cathode are still big challenge to be overcome for performance non-aqueous lithium-air batteries (LABs), especially ambient air. In this paper, dandelion-like NiCo 2 O 4 hollow microspheres prepared through a simple self-assembled hydrothermal process as catalyst. assembled LABs show relative discharge potential different partial pressure, can deliver reversible capacity 8019 mAh·g −1 at current density 300 mA·g with stable cycle least 40 times excellent attributed dandelion structure, together abundant vacancies, which would enhance ORR OER process. study confirms feasibility spheres efficient
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