We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Effect of Componential Proportion in Bimetallic Electrocatalysts on the Aprotic Lithium‐Oxygen Battery Performance.
- Authors
Luo, Xiangyi; Ge, Le; Ma, Lu; Kropf, Arthur J.; Wen, Jianguo; Zuo, Xiaobing; Ren, Yang; Wu, Tianpin; Lu, Jun; Amine, Khalil
- Abstract
Abstract: Rechargeable lithium‐oxygen (Li‐O2) batteries are one of the most promising technologies for next‐generation energy storage, which is also a critical part of the future renewable energy portfolio; however, its commercialization is still hindered by several challenges. The high charge overpotential, in particular, not only causes problems by increasing the possibility of electrolyte decomposition but also induces a low round‐trip efficiency and coulombic efficiency. Here, by choosing the right component proportion in Pt‐Cu bimetallic electrocatalysts that optimize electrocatalytic activity of electrochemical reactions, especially of oxygen evolution reactions, a superior electrochemical behavior is demonstrated, with a low charge overpotential of 0.2 V and cycleability of 50 discharge/charge cycles before capacity fading. The optimized Pt‐Cu bimetallic electrocatalysts significantly reduce the charge overpotential and furthermore enhance the efficiency, stability, and cycleability of an aprotic Li‐O2 battery.
- Subjects
LITHIUM-ion batteries; BIMETALLIC catalysts; OVERPOTENTIAL; APROTIC solvents; OXYGEN evolution reactions; RENEWABLE energy sources
- Publication
Advanced Energy Materials, 2018, Vol 8, Issue 20, p1
- ISSN
1614-6832
- Publication type
Article
- DOI
10.1002/aenm.201703230