Citation: Yumei Wu, Wenbin Li, Qi Dong, Jianhua Zhang, Xing Huang, Haofei Yang, Siwen Zhang, Jingjing Wang, Xifei Li. Synergistic pre-intercalation and coating engineering to realize stable Zn²⁺/H⁺ storage in vanadium oxide cathodes for zinc-ion batteries[J]. Chinese Chemical Letters, ;2026, 37(9): 111456. doi: 10.1016/j.cclet.2025.111456 shu

Synergistic pre-intercalation and coating engineering to realize stable Zn²⁺/H⁺ storage in vanadium oxide cathodes for zinc-ion batteries

Yumei Wu ^{a, b, 1} ,
Wenbin Li ^{a, b, 1,*,} ,
Qi Dong ^{a, b, 1} ,
Jianhua Zhang ^{a, b} ,
Xing Huang ^{a, b} ,
Haofei Yang ^{a, b} ,
Siwen Zhang ^{a, b} ,
Jingjing Wang ^{a, b} ,
Xifei Li ^{a, b, c, *,}

a.
Key Laboratory of Advanced Batteries Materials for Electric Vehicles of China Petroleum and Chemical Industry Federation, Institute of Advanced Electrochemical Energy & School of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, China
b.
Shaanxi Engineering Research Center of Key Materials for Lithium/Sodium-ion Batteries, Shaanxi International Joint Research Center of Surface Technology for Energy Storage Materials, Key Laboratory of Advanced Batteries Materials for Energy Storage Materials, Key Laboratory of Advanced Batteries Materials for Electric Vehicles of China Petorleum and Chemical Industry Federation, Xi'an 710048, China
c.
Guangdong Yuanneng Technologies Co., Ltd., Foshan 528223, China

liwb@xaut.edu.cn

xfli2011@hotmail.com

Received Date: 18 April 2025
Revised Date: 10 June 2025
Accepted Date: 13 June 2025
Available Online: 13 June 2025

Figures(5)

Layered V₅O₁₂·6H₂O is a cathode material with great development potential for aqueous zinc-ion batteries due to its large interlayer spacing (~1.18 nm), high proportion of V⁴⁺, and abundant interlayer H₂O. However, its low electronic conductivity and poor lattice stability lead to significant capacity degradation. In this regard, we develop a synergistic pre-intercalation & coating engineering, where Ni²⁺, Mn²⁺, or Zn²⁺ cations are pre-intercalated by one-step hydrothermal approach, and graphite oxides (GO) are coated by an electrostatic self-assembly strategy. It is found that Zn²⁺ pre-intercalation shows a better enhancement effect on the Zn²⁺/H⁺ storage reversibility and stability, and the charge and mass transfer kinetics. Meanwhile, the synergistic effect of Zn²⁺ pre-intercalation and GO coating achieves the enhancement of the cycling performance and rate capacity with the minimal loss of initial capacities, where the discharge capacity of 288.3 and 183.3 mAh/g with the retention of 85.0% and 61.6% are achieved at 1 and 3 A/g after 150 and 600 cycles, respectively. The excellent electrochemical performance is attributed to the biggest downward shift of the p-band center of oxygen, the moderate radius of Zn²⁺, and the coating of ultrathin GO with high electrical conductivity.
- V₅O₁₂·6H₂O,
- Layered cathode,
- Zinc-ion battery,
- Pre-intercalation,
- Coating
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沈阳化工大学材料科学与工程学院沈阳 110142

Synergistic pre-intercalation and coating engineering to realize stable Zn2+/H+ storage in vanadium oxide cathodes for zinc-ion batteries

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通讯作者: 陈斌, bchen63@163.com

Synergistic pre-intercalation and coating engineering to realize stable Zn²⁺/H⁺ storage in vanadium oxide cathodes for zinc-ion batteries