A novel iron phosphate/oxygen hybrid cathode with high power output for the aprotic lithium-oxygen battery
- Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu 610207 (China)
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065 (China)
Highlights: • This study affords a new strategy to improve the power output of Li-O{sub 2} cell. • FePO{sub 4}@C nanorods with exposed {010} facets are prepared and applied in O{sub 2} cathode. • Hybrid cathode retains high energy output via ORR. • Hybrid cathode attains 8-fold increased power output via Li{sup +}-insertion of FePO{sub 4}. - Abstract: The aprotic lithium-oxygen (Li-O{sub 2}) battery has recently attracted the worldwide attention by virtue of its super-large energy output. However, the extremely poor power output is one of the key issues which severely restrict the commercialization of the Li-O{sub 2} technology. In this work, we demonstrate a novel and simple strategy to address the power issue of the aprotic Li-O{sub 2} battery. An iron phosphate/oxygen (FePO{sub 4}/O{sub 2}) hybrid cathode is proposed for the first time by simply introducing the {010}-oriented FePO{sub 4} nanorods into a conventional O{sub 2} cathode. The as-built hybrid cathode not only retains a high-energy output via the O{sub 2} cathodic reaction, but also achieves an 8-fold increased power output via the Li{sup +}-insertion reaction of the {010}-oriented FePO{sub 4} nanorods.
- OSTI ID:
- 22730468
- Journal Information:
- Materials Research Bulletin, Vol. 95; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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