Revealing unusual storage failure of single-crystal high-nickel cathodes during high-temperature and high-humidity exposure

Ran An; Yuefeng Su; Yihong Wang; Enhua Dong; Yongjian Li; Pengfei Yan; Qing Huang; Meng Wang; Lian Wang; Lai Chen; Feng Wu; Ning Li

doi:10.1039/d5cc02395e

Revealing unusual storage failure of single-crystal high-nickel cathodes during high-temperature and high-humidity exposure

Chem Commun (Camb). 2025 Jun 27. doi: 10.1039/d5cc02395e. Online ahead of print.

Authors

Ran An^{1

2}, Yuefeng Su^{1

3

4}, Yihong Wang^{1

3}, Enhua Dong², Yongjian Li^{1

3}, Pengfei Yan², Qing Huang^{1

3}, Meng Wang³, Lian Wang³, Lai Chen^{1

3}, Feng Wu^{1

3}, Ning Li^{1

3

4}

Affiliations

¹ School of Materials Science and Engineering, Beijing Key Laboratory of Environmental Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China. ningli@bit.edu.cn.
² State Key Laboratory of Materials Low-Carbon Recycling, College of Materials Science & Engineering, Beijing University of Technology, Beijing 100124, P. R. China.
³ Chongqing Innovation Centre, Beijing Institute of Technology, Chongqing, 401120, P. R. China.
⁴ Beijing Institute of Technology Zhuhai Campus, Zhuhai, 519085, P. R. China.

PMID: 40576112
DOI: 10.1039/d5cc02395e

Abstract

This work investigates an unusual storage failure in single-crystal high-nickel cathode materials under a simulated hot and humid environment. A transient passivation effect was observed during short-term exposure, followed by rapid performance deterioration and structural/chemical state transformations upon prolonged storage. The findings highlight the need for targeted ambient storage control and material modification strategies.