Scholarlink

<p>Ternary metal oxides are acknowledged as potential electrode materials for lithium-ion batteries on account of their conspicuous electrochemical properties. Regulating internal morphology structure of materials is conducive to achieving the best electrochemical performance. Among them, two-dimensional nano-metal oxides with high specific surface areas and excellent electronic conductivity have been actively developed. In this work, utilizing pleated manganese-based nanosheets as templates, ternary spinel-structured ZnMn<sub>2</sub>O<sub>4</sub> nanosheets were successfully synthesized using a straightforward alcohol solvothermal zinc ion-exchange routine. When cycled at 500 mA g<sup>− 1</sup>, ZnMn<sub>2</sub>O<sub>4</sub> nanosheets, about 1.1&#xa0;mg cm<sup>− 2</sup> loading weight in electrode, have a specific capacity of 321.48 mAh g<sup>− 1</sup> at the 100th cycle, along with an impressive Coulombic efficiency of about 100%, which obviously exceeds that of MnO<sub>2</sub>. This is a great improvement on the electrochemical properties when zinc ions are introduced into manganese-based materials. Furthermore, ZnMn<sub>2</sub>O<sub>4</sub> nanosheets, only 0.5&#xa0;mg cm<sup>− 2</sup> loading weight in electrode, own a superior discharge capacity of 1047 mAh g<sup>− 1</sup> despite having undergone 200 cycles. Based on our researches, ZnMn<sub>2</sub>O<sub>4</sub> nanosheets are identified as a high-specific-energy active material with exceptional lithium-storage performance and have potential practical value in LIBs.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Facile construction of ZnMn2O4 nanosheets via alcohol solvothermal zinc ion-exchange reaction for high-performance lithium-ion batteries

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年11月24日

查看全文
  • Wenming Liao,
  • Qingbo Xiao,
  • Wanfei Li,
  • Hongzhen Lin

摘要

Ternary metal oxides are acknowledged as potential electrode materials for lithium-ion batteries on account of their conspicuous electrochemical properties. Regulating internal morphology structure of materials is conducive to achieving the best electrochemical performance. Among them, two-dimensional nano-metal oxides with high specific surface areas and excellent electronic conductivity have been actively developed. In this work, utilizing pleated manganese-based nanosheets as templates, ternary spinel-structured ZnMn2O4 nanosheets were successfully synthesized using a straightforward alcohol solvothermal zinc ion-exchange routine. When cycled at 500 mA g− 1, ZnMn2O4 nanosheets, about 1.1 mg cm− 2 loading weight in electrode, have a specific capacity of 321.48 mAh g− 1 at the 100th cycle, along with an impressive Coulombic efficiency of about 100%, which obviously exceeds that of MnO2. This is a great improvement on the electrochemical properties when zinc ions are introduced into manganese-based materials. Furthermore, ZnMn2O4 nanosheets, only 0.5 mg cm− 2 loading weight in electrode, own a superior discharge capacity of 1047 mAh g− 1 despite having undergone 200 cycles. Based on our researches, ZnMn2O4 nanosheets are identified as a high-specific-energy active material with exceptional lithium-storage performance and have potential practical value in LIBs.