Open AccessRecent progress and challenges of co‐based compound for aqueous Zn battery
Author(s) -
Gao Xingyuan,
Zhang Jinmiao,
Yin Wei,
Lu Xihong
Publication year - 2021
Publication title -
nano select
Language(s) - English
Resource type - Journals
ISSN - 2688-4011
DOI - 10.1002/nano.202100035
Subject(s) - battery (electricity) , cathode , aqueous solution , energy storage , materials science , voltage , redox , electrochemistry , nanotechnology , computer science , chemistry , electrode , electrical engineering , engineering , physics , metallurgy , power (physics) , quantum mechanics
Aqueous Zn battery turns to be a rational approach for next‐generation energy storage devices due to the high abundance, admirable theoretical capacity and excellent safety. As an emerging candidate of the ideal cathode material for Zn battery, Co‐based compounds have drawn increasing attentions because of the high output voltage, remarkable theoretical capacity and excellent redox property. In this review, a summary of recent developments of Co‐based cathodes in aqueous Zn batteries is presented, including Co 3 O 4 , Co(OH) 2 , NiCo 2 O 4 and other Co‐based compounds. In addition to charge storage mechanisms, smart strategies including structural modulation, composition regulation, and defect engineering are systematically introduced, and their structure‐performance relationships are discussed in depth. Finally, limitations and proposed future work are demonstrated.