Citation: Baiyao Gan, Lijun Xiong, Haotian Gong, Lishan Yang, Yahui Yang, Lixiong Bai, Ting Long, Jian Zhu, Jian Yang. Amorphous LiBO₂-assisted cathode-electrolyte-interphase enhancing the reversibility of commercial nickel-rich layered cathodes[J]. Chinese Chemical Letters, ;2026, 37(8): 111228. doi: 10.1016/j.cclet.2025.111228 shu

Amorphous LiBO₂-assisted cathode-electrolyte-interphase enhancing the reversibility of commercial nickel-rich layered cathodes

Baiyao Gan ^a ,
Lijun Xiong ^a ,
Haotian Gong ^a ,
Lishan Yang ^{a, *,} ,
Yahui Yang ^{a, *,} ,
Lixiong Bai ^c ,
Ting Long ^a ,
Jian Zhu ^c ,
Jian Yang ^{b, *,}

a.
Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education of China), National and Local Joint Engineering Laboratory for New Petrochemical Materials and Fine Utilization of Resources, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Key Laboratory of Light Energy Conversion Materials of Hunan Province, Hunan Normal University, Changsha 410081, China
b.
Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Ji’nan 250100, China
c.
Minmetals New Energy Materials (Hunan), Co., Ltd., Changsha 410205, China

lsyang@hunnu.edu.cn

yangyahui2002@sina.com

yangjian@sdu.edu.cn

Received Date: 25 February 2025
Revised Date: 10 April 2025
Accepted Date: 16 April 2025
Available Online: 17 April 2025

Figures(7)

The nickel-rich layered cathode materials (LiNi_xCo_yMn_1-x-yO₂) in lithium-ion batteries suffer from labile surface reactivity, leading to the formation of residual lithium impurities and the induction of interfacial side reactions, ultimately degrading battery performance. Here, a controlled reaction between residual lithium and the glassy material H₃BO₃ on the surface of commercial LiNi_0.82Co_0.12Mn_0.06O₂ cathode materials converts into a protective fast ionic conductor layer. It was observed that sintering temperatures distinctly influenced the composition and structure of interface coating, subsequently affecting electrochemical properties of cathode. Notably, upon treatment at a relatively low temperature of 300 ℃, the surface of sample was enveloped in an amorphous LiBO₂ layer, which effectively alleviates interfacial side reactions, stabilizes the crystal structure and enhances lithium-ion transport kinetics. Furthermore, during cycling, the amorphous LiBO₂ coating facilitates the formation of a stable cathode electrolyte interphase layer enriched with LiF. Consequently, the material exhibits exceptional electrochemical performance, balancing high capacity and excellent cycling stability. This interfacial engineering strategy, compatible with industrial-scale processing, provides a viable pathway to enhance the durability of nickel-rich cathodes for high-energy-density batteries.
- Lithium-ion batteries,
- Nickel-rich layered cathode,
- LiBO₂ coating,
- Residual lithium,
- Cathode electrolyte interphase
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Amorphous LiBO2-assisted cathode-electrolyte-interphase enhancing the reversibility of commercial nickel-rich layered cathodes

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通讯作者: 陈斌, bchen63@163.com

Amorphous LiBO₂-assisted cathode-electrolyte-interphase enhancing the reversibility of commercial nickel-rich layered cathodes