Superior Performance of a Li–O 2  Battery with Metallic RuO 2  Hollow Spheres as the Carbon‐Free Cathode | Zendy

Li Fujun | Zendy; Tang DaiMing | Zendy; Zhang Tao | Zendy; Liao Kaiming | Zendy; He Ping | Zendy; Golberg Dmitri | Zendy; Yamada Atsuo | Zendy; Zhou Haoshen | Zendy

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Superior Performance of a Li–O 2 Battery with Metallic RuO 2 Hollow Spheres as the Carbon‐Free Cathode

Author(s) -

Li Fujun,

Tang DaiMing,

Zhang Tao,

Liao Kaiming,

He Ping,

Golberg Dmitri,

Yamada Atsuo,

Zhou Haoshen

Publication year - 2015

Publication title -

advanced energy materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 10.08

H-Index - 220

eISSN - 1614-6840

pISSN - 1614-6832

DOI - 10.1002/aenm.201500294

Subject(s) - battery (electricity) , cathode , materials science , spheres , carbon fibers , metal , fullerene , charge (physics) , nanotechnology , engineering physics , composite material , chemistry , physics , thermodynamics , metallurgy , power (physics) , organic chemistry , quantum mechanics , astronomy , composite number

Hierarchically porous, metallic RuO 2 hollow spheres are applied as a carbon‐free cathode for Li–O 2 batteries for the first time. They exhibit low charge potentials of ≈3.5 V, corresponding to overpotentials of 0.13/0.54 V in discharging and charging processes, a large reversible capacity of ≈1400 mAh g −1 , and 100 cycles of full discharge and charge.

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