Co3O4 and expanded graphite self-assembled polyhedron composites used as anode materials for lithium ion batteries

被引：0

作者：

Ou Y. ^{[1
,2
]}

Tang Z. ^{[1
]}

Huang D. ^{[1
]}

Zhao T. ^{[1
]}

Liu L. ^{[1
]}

Cheng J. ^{[1
]}

机构：

[1] School of Materials Science and Engineering, Hunan University of Science and Technology, Xiangtan

[2] Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment, Hunan University of Science and Technology, Xiangtan

来源：

Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica | 2023年 / 40卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Co[!sub]3[!/sub]O[!sub]4[!/sub] anode; Co[!sub]3[!/sub]O[!sub]4[!/sub]-EG composite; expanded graphite; Li-ion batteries; self-assembled;

D O I：

10.13801/j.cnki.fhclxb.20220727.003

中图分类号：

学科分类号：

摘要：

As a cathode material for lithium ion batteries, Co3O4 has attracted much attention due to its high theoretical specific capacity of 890 mA·h/g. In this paper, Co3O4 and expanded graphite self-assembled polyhedral composites (Co3O4-EG) were prepared by simple chemical solution method and heat treatment. When used as the anode material of lithium ion battery, the reversible capacity of Co3O4-EG composite electrode with the mass ratio of EG to Co3O4 of 1∶3 after 400 cycles at the current rate of 0.1 C is still as high as 418 mA·h/g, which is higher than that of other Co3O4-EG composite materials (The capacity is 273 mA·h/g after 190 cycles with a mass ratio of 1∶4 and 329 mA·h/g after 135 cycles with a mass ratio of 1∶5). And the discharge capacity of all Co3O4-EG composites is higher than that of pure Co3O4 (The capacity is 40 mA·h/g after 400 cycles). The nanostructure of Co3O4, the excellent electrical conductivity of expanded graphite and the synergistic effect of self-assembled polyhedron structure make Co3O4-EG composites have excellent lithium storage properties. © 2023 Beijing University of Aeronautics and Astronautics (BUAA). All rights reserved.

引用

页码：2741 / 2748

页数：7

共 30 条

[1] LIU Qi, HAO Siyu, FENG Dong, Et al., Research progress of anode materials for lithium ion battery[J], Acta Materiae Compositae Sinica, 39, 4, pp. 1446-1456, (2022)
[2] ZHAO Tingting, LI Xiaoqiang, ZHANG Yamei, Et al., CoFe2O4@C composite nanofiber films as self-standing anodes for lithium-ion batteries, Acta Materiae Compositae Sinica, 39, 9, pp. 4431-4440, (2022)
[3] HAN J S, DUAN L Q, HE L Y, Et al., Template-assisted synthesis of porous Co3O4 nanosheet with excellent electrochemical performance for rechargeable lithium-ion batteries[J], Journal of Nanoparticle Research, 23, 11, pp. 1-10, (2021)
[4] ZHAO Y C, LIU C G, YI R W, Et al., Facile preparation of Co3O4 nanoparticles incorporating with highly conductive MXene nanosheets as high-performance anodes for lithium-ion batteries[J], Electrochimica Acta, 345, (2020)
[5] SUN J, WANG H, LI Y, Et al., Porous Co3O4 column as a high-performance lithium anode material[J], Journal of Porous Materials, 28, 3, pp. 889-894, (2021)
[6] DAI Y, FANG X, YANG T, Et al., Construction of the peanut-like Co3O4 as anode materials for high-performance lithium-ion batteries[J], Ionics, 26, 3, pp. 1261-1265, (2020)
[7] ZHANG C, WANG H, NIE Y, Et al., MOF-derived Co3O4 mi-crospheres with pagoda cauliflower shape as anode materials for stable life Li-ion battery[J], Functional Materials Letters, 13, 6, (2020)
[8] WEN J, XU L, WANG J, Et al., Lithium and potassium storage behavior comparison for porous nanoflaked Co3O4 anode in lithium-ion and potassium-ion batteries[J], Journal of Power Sources, 474, (2020)
[9] HOU C, WANG B, MURUGADOSS V, Et al., Recent advances in Co3O4 as anode materials for high-performance lithium-ion batteries, Engineered Science, 11, 5, pp. 19-30, (2020)
[10] ZHANG X T, CHEN X Z, LUO G, Et al., Co3O4-based fluffy tubes structure used as anode material for lithium-ion battery[J], Materials Letters, 309, (2022)

← 1 2 3 →