Facile construction of ZnMn2O4 nanosheets via alcohol solvothermal zinc ion-exchange reaction for high-performance lithium-ion batteries
Year: 2025
Type: article
Abstract: 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 2 O 4 nanosheets were successfully synthesized using a straightforward alcohol solvothermal zinc ion-exchange routine. When cycled at 500 mA g − 1 , ZnMn 2 O 4 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 MnO 2 . This is a great improvement on the electrochemical properties when zinc ions are introduced into manganese-based materials. Furthermore, ZnMn 2 O 4 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, ZnMn 2 O 4 nanosheets are identified as a high-specific-energy active material with exceptional lithium-storage performance and have potential practical value in LIBs.
Source: Scientific Reports
Authors: Wenming Liao, Qingbo Xiao, Wanfei Li, Hongzhen Lin
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,690
OpenAlex ID: W4416592792