Enabling High Stability of Co-Free LiNiO2 Cathode via a Sulfide-Enriched Cathode Electrolyte Interface

Zhaowen Bai; Zhehan Ying; Fengqi Zhang; Wei Wang; Zhiyong Huang; Tingting Yang; Wenjie Li; Weixia Dong; Jie Yan; Cong Lin; Liang Hu; Tiancheng Liu; Zezhou Lin; Tianyi Li; Chengjun Sun; Luxi Li; Yang Wang; Qingyu Kong; Shaonan Gu; Hui Shen; Shijie Hao; Xuanming Chen; Leung Yuk Frank Lam; Xijun Hu; Haitao Huang; Xun Li Wang; Fangxi Xie; Guohua Chen; Qi Liu; Yang Ren

doi:10.1021/acsenergylett.4c00652

Enabling High Stability of Co-Free LiNiO₂ Cathode via a Sulfide-Enriched Cathode Electrolyte Interface

Zhaowen Bai, Zhehan Ying, Fengqi Zhang, Wei Wang, Zhiyong Huang, Tingting Yang, Wenjie Li, Weixia Dong, Jie Yan, Cong Lin, Liang Hu, Tiancheng Liu, Zezhou Lin, Tianyi Li, Chengjun Sun, Luxi Li, Yang Wang, Qingyu Kong, Shaonan Gu, Hui ShenShijie Hao, Xuanming Chen, Leung Yuk Frank Lam, Xijun Hu, Haitao Huang, Xun Li Wang, Fangxi Xie, Guohua Chen, Qi Liu, Yang Ren

Research output: Journal article publication › Journal article › Academic research › peer-review

2 Citations (Scopus)

Abstract

Cobalt-free lithium nickel oxide (LNO) has garnered significant interest as the end member of high-nickel layered oxide cathodes for next-generation batteries. However, its practical performance notably underperforms expectations because of the structural degradation and unstable interfacial chemistry with electrolytes during cycling. Here, we report that a durable cathode-electrolyte interface (CEI), enriched by in situ formed sulfides and borides, can inhibit LNO structural degradation and suppress Ni ion dissolution. With the CEI protection, the stability of LNO can be remarkably extended, and batteries demonstrate a capacity retention rate of 84% (30 °C) and 79% (50 °C) after 200 cycles at 1C, respectively. These results demonstrate that enriching CEI with sulfur-containing species can effectively stabilize the interfacial chemistry of LNO, particularly at an elevated temperature of 50 °C. This finding provides valuable perspectives on designing electrolytes for cobalt-free LNO and other high-Ni cathodes toward the development of next-generation high-energy-density lithium-ion batteries.

Original language	English
Pages (from-to)	2717-2726
Number of pages	10
Journal	ACS Energy Letters
Volume	9
Issue number	6
DOIs	https://doi.org/10.1021/acsenergylett.4c00652
Publication status	Published - 14 May 2024

ASJC Scopus subject areas

Chemistry (miscellaneous)
Renewable Energy, Sustainability and the Environment
Fuel Technology
Energy Engineering and Power Technology
Materials Chemistry

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10.1021/acsenergylett.4c00652

Cite this

Bai, Z., Ying, Z., Zhang, F., Wang, W., Huang, Z., Yang, T., Li, W., Dong, W., Yan, J., Lin, C., Hu, L., Liu, T., Lin, Z., Li, T., Sun, C., Li, L., Wang, Y., Kong, Q., Gu, S., ... Ren, Y. (2024). Enabling High Stability of Co-Free LiNiO₂ Cathode via a Sulfide-Enriched Cathode Electrolyte Interface. ACS Energy Letters, 9(6), 2717-2726. https://doi.org/10.1021/acsenergylett.4c00652

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title = "Enabling High Stability of Co-Free LiNiO2 Cathode via a Sulfide-Enriched Cathode Electrolyte Interface",

abstract = "Cobalt-free lithium nickel oxide (LNO) has garnered significant interest as the end member of high-nickel layered oxide cathodes for next-generation batteries. However, its practical performance notably underperforms expectations because of the structural degradation and unstable interfacial chemistry with electrolytes during cycling. Here, we report that a durable cathode-electrolyte interface (CEI), enriched by in situ formed sulfides and borides, can inhibit LNO structural degradation and suppress Ni ion dissolution. With the CEI protection, the stability of LNO can be remarkably extended, and batteries demonstrate a capacity retention rate of 84% (30 °C) and 79% (50 °C) after 200 cycles at 1C, respectively. These results demonstrate that enriching CEI with sulfur-containing species can effectively stabilize the interfacial chemistry of LNO, particularly at an elevated temperature of 50 °C. This finding provides valuable perspectives on designing electrolytes for cobalt-free LNO and other high-Ni cathodes toward the development of next-generation high-energy-density lithium-ion batteries.",

author = "Zhaowen Bai and Zhehan Ying and Fengqi Zhang and Wei Wang and Zhiyong Huang and Tingting Yang and Wenjie Li and Weixia Dong and Jie Yan and Cong Lin and Liang Hu and Tiancheng Liu and Zezhou Lin and Tianyi Li and Chengjun Sun and Luxi Li and Yang Wang and Qingyu Kong and Shaonan Gu and Hui Shen and Shijie Hao and Xuanming Chen and {Frank Lam}, {Leung Yuk} and Xijun Hu and Haitao Huang and Wang, {Xun Li} and Fangxi Xie and Guohua Chen and Qi Liu and Yang Ren",

note = "Publisher Copyright: {\textcopyright} 2024 American Chemical Society.",

year = "2024",

month = may,

day = "14",

doi = "10.1021/acsenergylett.4c00652",

language = "English",

volume = "9",

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journal = "ACS Energy Letters",

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Bai, Z, Ying, Z, Zhang, F, Wang, W, Huang, Z, Yang, T, Li, W, Dong, W, Yan, J, Lin, C, Hu, L, Liu, T, Lin, Z, Li, T, Sun, C, Li, L, Wang, Y, Kong, Q, Gu, S, Shen, H, Hao, S, Chen, X, Frank Lam, LY, Hu, X, Huang, H, Wang, XL, Xie, F, Chen, G, Liu, Q & Ren, Y 2024, 'Enabling High Stability of Co-Free LiNiO₂ Cathode via a Sulfide-Enriched Cathode Electrolyte Interface', ACS Energy Letters, vol. 9, no. 6, pp. 2717-2726. https://doi.org/10.1021/acsenergylett.4c00652

TY - JOUR

T1 - Enabling High Stability of Co-Free LiNiO2 Cathode via a Sulfide-Enriched Cathode Electrolyte Interface

AU - Bai, Zhaowen

AU - Ying, Zhehan

AU - Zhang, Fengqi

AU - Wang, Wei

AU - Huang, Zhiyong

AU - Yang, Tingting

AU - Li, Wenjie

AU - Dong, Weixia

AU - Yan, Jie

AU - Lin, Cong

AU - Hu, Liang

AU - Liu, Tiancheng

AU - Lin, Zezhou

AU - Li, Tianyi

AU - Sun, Chengjun

AU - Li, Luxi

AU - Wang, Yang

AU - Kong, Qingyu

AU - Gu, Shaonan

AU - Shen, Hui

AU - Hao, Shijie

AU - Chen, Xuanming

AU - Frank Lam, Leung Yuk

AU - Hu, Xijun

AU - Huang, Haitao

AU - Wang, Xun Li

AU - Xie, Fangxi

AU - Chen, Guohua

AU - Liu, Qi

AU - Ren, Yang

PY - 2024/5/14

Y1 - 2024/5/14

N2 - Cobalt-free lithium nickel oxide (LNO) has garnered significant interest as the end member of high-nickel layered oxide cathodes for next-generation batteries. However, its practical performance notably underperforms expectations because of the structural degradation and unstable interfacial chemistry with electrolytes during cycling. Here, we report that a durable cathode-electrolyte interface (CEI), enriched by in situ formed sulfides and borides, can inhibit LNO structural degradation and suppress Ni ion dissolution. With the CEI protection, the stability of LNO can be remarkably extended, and batteries demonstrate a capacity retention rate of 84% (30 °C) and 79% (50 °C) after 200 cycles at 1C, respectively. These results demonstrate that enriching CEI with sulfur-containing species can effectively stabilize the interfacial chemistry of LNO, particularly at an elevated temperature of 50 °C. This finding provides valuable perspectives on designing electrolytes for cobalt-free LNO and other high-Ni cathodes toward the development of next-generation high-energy-density lithium-ion batteries.

AB - Cobalt-free lithium nickel oxide (LNO) has garnered significant interest as the end member of high-nickel layered oxide cathodes for next-generation batteries. However, its practical performance notably underperforms expectations because of the structural degradation and unstable interfacial chemistry with electrolytes during cycling. Here, we report that a durable cathode-electrolyte interface (CEI), enriched by in situ formed sulfides and borides, can inhibit LNO structural degradation and suppress Ni ion dissolution. With the CEI protection, the stability of LNO can be remarkably extended, and batteries demonstrate a capacity retention rate of 84% (30 °C) and 79% (50 °C) after 200 cycles at 1C, respectively. These results demonstrate that enriching CEI with sulfur-containing species can effectively stabilize the interfacial chemistry of LNO, particularly at an elevated temperature of 50 °C. This finding provides valuable perspectives on designing electrolytes for cobalt-free LNO and other high-Ni cathodes toward the development of next-generation high-energy-density lithium-ion batteries.

UR - http://www.scopus.com/inward/record.url?scp=85193543024&partnerID=8YFLogxK

U2 - 10.1021/acsenergylett.4c00652

DO - 10.1021/acsenergylett.4c00652

M3 - Journal article

AN - SCOPUS:85193543024

SN - 2380-8195

VL - 9

SP - 2717

EP - 2726

JO - ACS Energy Letters

JF - ACS Energy Letters

IS - 6

ER -

Enabling High Stability of Co-Free LiNiO₂ Cathode via a Sulfide-Enriched Cathode Electrolyte Interface

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