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

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

Chem Commun (Camb). 2022 Aug 2;58(62):8626-8629. doi: 10.1039/d2cc03208b.

Authors

Haojie Zhu^{1

2}, Lu Peng³, Jie Shu⁴, Cheng Yang¹

Affiliations

¹ Institute of Materials Research, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China. yang.cheng@sz.tsinghua.edu.cn.
² School of Materials Science and Engineering, Tsinghua University, Beijing, China.
³ Institute of Environment and Ecology and Tsinghua-Berkeley Shenzhen Institute, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China.
⁴ School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China. shujie@nbu.edu.cn.

PMID: 35833593
DOI: 10.1039/d2cc03208b

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).