Heterostructured LCAO/LMNCO cathode material for high capacity lithium-ion batteries

Yan Y. ¹Li Z. ¹Wang P. ²Murakami R.-I. ³Hu H. ¹Zhang M. ¹Liu X. ¹Zhang D.¹

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作者信息

1. School of Advanced Materials and Nanotechnology Xidian University
2. Nanomaterials Group Institute of System Information Technologies and Nanotechnologies (ISIT) Fukuoka Industry-Academia Symphonicity (FiaS)
3. School of Mechanical Engineering Chengdu University
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Abstract

? 2022 Elsevier B.V.Li-rich layered cathode materials based on Li1.2Mn0.54Ni0.13Co0.13O2(LMNCO) have received increasing attention due to their high capacity densities. Nevertheless, these materials are still limited by their unsatisfactory cycle performances. In this work, the sol-gel method was used to construct heterostructured LiCo0.99Al0.01O2-Li1.2Mn0.54Ni0.13Co0.13O2 (LCAO-LMNCO) cathode material to overcome the capacity fading of LMNCO and charging voltage limitation of LiCo0.99Al0.01O2 (LCAO). The as-obtained heterostructured LCAO-LMNCO cathode material showed 273.90 mAh/g capacity at charge-discharge voltages of 2.0–4.6 V. The capacity retention was 72.10% after 100 cycles at 1 C, superior to LCAO or LMNCO.

Key words

Cathode material/Heterostructure/High-voltage/Li-rich/LiCo0.99Al0.01O2/Lithium-ion batteries

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出版年

2022

Journal of Alloys and Compounds

EISCI

ISSN：0925-8388

参考文献量61

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