Probing the degradation of LiCoO2 in batteries subjected to high-voltage cycling with 17O solid-state NMR spectroscopy

Guozhong Lu; Fushan Geng; Nianrui Guo; Shouquan Yao; Ming Shen; Bingwen Hu

doi:10.1039/d3cc02547k

Probing the degradation of LiCoO₂ in batteries subjected to high-voltage cycling with ¹⁷O solid-state NMR spectroscopy

Guozhong Lu, Fushan Geng, Nianrui Guo, Shouquan Yao, Ming Shen^*, Bingwen Hu^*

^*Corresponding author for this work

School of Physics and Electronic Science

East China Normal University

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

The long-term cycling stability of LiCoO₂ under high-voltage operation in lithium-ion batteries is still not satisfactory and the mechanism of capacity decay is not well understood. Here we mainly apply ¹⁷O MAS NMR spectroscopy to probe the phase transformation of cycled LiCoO₂ cathodes in both liquid cells and solid cells. It turns out that deterioration into the spinel phase is the main cause.

Original language	English
Pages (from-to)	7959-7962
Number of pages	4
Journal	Chemical Communications
Volume	59
Issue number	51
DOIs	https://doi.org/10.1039/d3cc02547k
State	Published - 6 Jun 2023

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title = "Probing the degradation of LiCoO2 in batteries subjected to high-voltage cycling with 17O solid-state NMR spectroscopy",

abstract = "The long-term cycling stability of LiCoO2 under high-voltage operation in lithium-ion batteries is still not satisfactory and the mechanism of capacity decay is not well understood. Here we mainly apply 17O MAS NMR spectroscopy to probe the phase transformation of cycled LiCoO2 cathodes in both liquid cells and solid cells. It turns out that deterioration into the spinel phase is the main cause.",

author = "Guozhong Lu and Fushan Geng and Nianrui Guo and Shouquan Yao and Ming Shen and Bingwen Hu",

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T1 - Probing the degradation of LiCoO2 in batteries subjected to high-voltage cycling with 17O solid-state NMR spectroscopy

AU - Lu, Guozhong

AU - Geng, Fushan

AU - Guo, Nianrui

AU - Yao, Shouquan

AU - Shen, Ming

AU - Hu, Bingwen

PY - 2023/6/6

Y1 - 2023/6/6

N2 - The long-term cycling stability of LiCoO2 under high-voltage operation in lithium-ion batteries is still not satisfactory and the mechanism of capacity decay is not well understood. Here we mainly apply 17O MAS NMR spectroscopy to probe the phase transformation of cycled LiCoO2 cathodes in both liquid cells and solid cells. It turns out that deterioration into the spinel phase is the main cause.

AB - The long-term cycling stability of LiCoO2 under high-voltage operation in lithium-ion batteries is still not satisfactory and the mechanism of capacity decay is not well understood. Here we mainly apply 17O MAS NMR spectroscopy to probe the phase transformation of cycled LiCoO2 cathodes in both liquid cells and solid cells. It turns out that deterioration into the spinel phase is the main cause.

UR - https://www.scopus.com/pages/publications/85162272831

U2 - 10.1039/d3cc02547k

DO - 10.1039/d3cc02547k

M3 - 文章

C2 - 37278987

AN - SCOPUS:85162272831

SN - 1359-7345

VL - 59

SP - 7959

EP - 7962

JO - Chemical Communications

JF - Chemical Communications

IS - 51

ER -

Probing the degradation of LiCoO₂ in batteries subjected to high-voltage cycling with ¹⁷O solid-state NMR spectroscopy

Abstract

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