Electrochemical One-Step Synthesis of Cu2O with Tunable Oxygen Defects and Their Electrochemical Performance in Li-Ion Batteries

被引：0

作者：

Zheng, Yu ^{[1
]}

Huang, Lanxiang ^{[2
]}

Jian, Feiyu ^{[1
]}

Zhao, Shujia ^{[1
]}

Tang, Wu ^{[1
]}

Tang, Hui ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Mat & Energy, Chengdu 611731, Peoples R China

[2] Leshan Normal Univ, Sch New Energy Mat & Chem, Leshan 614004, Peoples R China

来源：

COATINGS | 2025年 / 15卷 / 05期

关键词：

Cu2O; oxygen vacancies; electrochemical synthesis; anode; lithium-ion battery; ANODE MATERIALS; RECHARGEABLE LITHIUM; RECENT PROGRESS; FABRICATION; PARTICLES;

D O I：

10.3390/coatings15050510

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report a facile galvanic oxidation corrosion method for the preparation of cuprite nanocrystals (Cu2O) with controllable oxygen vacancies. The Cu2O microspheres have been employed as active anode materials in lithium-ion batteries (LIBs), exhibiting excellent electrochemical performance. The effect of oxygen vacancies on the electrochemical properties was studied. The oxygen vacancy-rich Cu2O electrodes exhibited a high specific discharge capacity (1002.3 mAh g(-1) at 0.1 C) and remarkable reversibility. Oxygen vacancies in Cu2O not only promote high electronic conductivity but also provide additional active sites for lithiation/delithiation, further enhancing electrochemical performance. Furthermore, the formation mechanism of Cu2O during the galvanic oxidation-corrosion process has been proposed.

引用

页数：12

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