Urchin like inverse spinel manganese doped NiCo2O4 microspheres as high performances anode for lithium-ion batteries

Zhenyan Liang; Huayao Tu; Zhen Kong; Xiaogang Yao; Deqin Xu; Shengfu Liu; Yongliang Shao; Yongzhong Wu; Xiaopeng Hao

doi:10.1016/j.jcis.2022.02.069

Urchin like inverse spinel manganese doped NiCo₂O₄ microspheres as high performances anode for lithium-ion batteries

J Colloid Interface Sci. 2022 Jun 15:616:509-519. doi: 10.1016/j.jcis.2022.02.069. Epub 2022 Feb 18.

Authors

Zhenyan Liang¹, Huayao Tu², Zhen Kong², Xiaogang Yao², Deqin Xu², Shengfu Liu², Yongliang Shao¹, Yongzhong Wu³, Xiaopeng Hao⁴

Affiliations

¹ School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, PR China; State Key Lab of Crystal Materials, Shandong University, Jinan 250100, PR China.
² State Key Lab of Crystal Materials, Shandong University, Jinan 250100, PR China.
³ School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, PR China; State Key Lab of Crystal Materials, Shandong University, Jinan 250100, PR China. Electronic address: wuyz@sdu.edu.cn.
⁴ School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, PR China; State Key Lab of Crystal Materials, Shandong University, Jinan 250100, PR China. Electronic address: xphao@sdu.edu.cn.

PMID: 35228047
DOI: 10.1016/j.jcis.2022.02.069

Abstract

The ternary transition metal oxides are promising anode material for lithium-ion batteries (LIBs). However, their practical applications are greatly hindered by the poor conductivity and huge volume changes. To solve the issues, urchin-like inverse spinel manganese (Mn) doped NiCo₂O₄ hierarchical microspheres were fabricated through a facile hydrothermal approach and subsequent annealing treatment. The as-obtained Mn-doped NiCo₂O₄ hold microsphere and sharp fiber-shaped needle multilevel nanoscale architecture, which effectively shortened Li ions (Li⁺) transmission path and improved the conductivity. In addition, the hierarchical urchin-like Mn-doped NiCo₂O₄ synthesized at annealing temperature (600 °C) manifested a larger capacity and better cycling performance by controlling the crystallinities and morphologies. As expected, it displays an outstanding cycling performance with a reversible capacity of about 945 mAh g^-1 after 500 cycles at 2000 mA g^-1. The kinetic analysis and galvanostatic intermittent titration technique (GITT) testing also verifies the superior pseudocapacitance contribution and fast elevated ion migration of Li⁺. Our work provides a promising design to develop suitable anode materials based on transition metal oxides for high-performance LIBs.

Keywords: Hierarchical structure; Lithium-ion battery; Trimetallic oxide; Urchin-like microspheres.