Artificial phosphate solid electrolyte interphase enables stable MnO2 cathode for zinc ion batteries

Junli Chen, Jianhui Ma, Bowen Liu, Ziyan Li, Xiaojun Zhang, Shirong Sun, Ke Lu, Jian Yin, Suli Chen, Xihong Zu, Zejie Zhang, Xueqing Qiu, Yanlin Qin, Wenli Zhang

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Rechargeable aqueous zinc-ion batteries based on manganese-based cathode materials are promising energy storage devices, but the low conductivity and dissolution issues of manganese-based cathode materials lead to instability. In order to address these issues, this work proposes an in situ reaction between hydroxyethylene-1,1,-diphosphonic acid and manganese dioxide to create a phosphorylated manganese dioxide (PMO) cathode on which a phosphate solid electrolyte interphase was built. This artificial organic electrolyte interface improves the stability of the cathode during cycling, allowing it to deliver capacities of 250 mAh g−1 and 105 mAh g−1 at current densities of 0.1 A g−1 and 1.0 A g−1, respectively. The intrinsic mechanism of this phosphate retards the side reactions caused by water attack. This strategy provides a general design strategy for manganese-based cathode materials for aqueous zinc ion batteries.
Original languageEnglish (US)
Pages (from-to)101524
JournalComposites Communications
Volume38
DOIs
StatePublished - Feb 17 2023

Bibliographical note

KAUST Repository Item: Exported on 2023-03-01
Acknowledgements: The authors acknowledge the financial support from the National Natural Science Foundation of China (22108044), the Guangdong Basic and Applied Basic Research Foundation (No.2019B151502038), the Research and Development Program in Key Fields of Guangdong Province (2020B1111380002), the financial support from the Guangdong Provincial Key Laboratory of Plant Resources Biorefinery (2021GDKLPRB07).

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