A Wadsley–Roth crystallographic shear phase SrNb6O16 anode for fast Li-ion storage

Haojie Zhu; Lu Peng; Jie Shu; Cheng Yang

doi:10.1039/D2CC03208B

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A Wadsley–Roth crystallographic shear phase SrNb₆O₁₆ anode for fast Li-ion storage†

Haojie Zhu,^ab Lu Peng,^c Jie Shu

^d and Cheng Yang

*^a

Author affiliations

* Corresponding authors

^a Institute of Materials Research, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China
E-mail: yang.cheng@sz.tsinghua.edu.cn

^b School of Materials Science and Engineering, Tsinghua University, Beijing, China

^c Institute of Environment and Ecology and Tsinghua-Berkeley Shenzhen Institute, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China

^d School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
E-mail: shujie@nbu.edu.cn

Abstract

SrNb₆O₁₆, featuring an enlarged unit-cell volume (Wadsley–Roth phase), is selected as a model anode to investigate its fast-charging behaviors. This novel SrNb₆O₁₆ exhibits a large reversible capacity of 223.4 mA h g⁻¹ at 0.3C, high rate performance (20C) and remarkable cyclability (capacity retention rate of 80.5% after 850 cycles).

This article is part of the themed collection: Electrochemical Energy

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Article information

DOI: https://doi.org/10.1039/D2CC03208B
Article type: Communication
Submitted: 07 Jun 2022
Accepted: 04 Jul 2022
First published: 05 Jul 2022

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Chem. Commun., 2022,58, 8626-8629

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A Wadsley–Roth crystallographic shear phase SrNb₆O₁₆ anode for fast Li-ion storage

H. Zhu, L. Peng, J. Shu and C. Yang, Chem. Commun., 2022, 58, 8626 DOI: 10.1039/D2CC03208B

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