Issue 80, 2022

A montmorillonite-modification strategy enabling long cycling stability of dual-ion batteries

Abstract

Lithium‖graphite dual-ion batteries (DIBs) have received widespread attention due to their low cost and high operating voltage (nearly 5 V). However, DIBs face several challenges such as decomposition of the electrolyte under high voltage and structural deterioration of graphite. Herein, montmorillonite (MMT) is employed to generate a favorable and robust cathode electrolyte interface (CEI) layer on the graphite surface. As a result, the DIBs exhibit a 100% capacity retention for 500 cycles at 2C. Even after 1000 cycles at 5C, the capacity retention is still as high as 99%.

Graphical abstract: A montmorillonite-modification strategy enabling long cycling stability of dual-ion batteries

Supplementary files

Article information

Article type
Communication
Submitted
16 Aug 2022
Accepted
08 Sep 2022
First published
08 Sep 2022

Chem. Commun., 2022,58, 11276-11279

A montmorillonite-modification strategy enabling long cycling stability of dual-ion batteries

G. Li, H. Wang, X. Shi, C. Yang, R. Wang, B. He, J. Jin, Y. Gong, A. Tang and H. Yang, Chem. Commun., 2022, 58, 11276 DOI: 10.1039/D2CC04552D

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