Microwave-assisted synthesis of Co-free Li[Li0.2Ni0.2Mn0.6]O2 cathodes with a spinel-layered coherent structure for high-power Li-ion batteries

Shenggui Wang; Jinniu Chen; Tian Zhao; Xiaoxia Yang; Lang Qiu; Yuankui Wang; Yang Song; Zhonghua Wu; Xiaodong Guo; Kun Yu

doi:10.1039/d3cc04496c

Microwave-assisted synthesis of Co-free Li[Li_0.2Ni_0.2Mn_0.6]O₂ cathodes with a spinel-layered coherent structure for high-power Li-ion batteries

Chem Commun (Camb). 2024 Feb 6;60(12):1634-1637. doi: 10.1039/d3cc04496c.

Authors

Shenggui Wang^{1

2

3}, Jinniu Chen⁴, Tian Zhao⁴, Xiaoxia Yang⁴, Lang Qiu³, Yuankui Wang², Yang Song³, Zhonghua Wu⁵, Xiaodong Guo³, Kun Yu¹

Affiliations

¹ School of Materials Science and Engineering, Central South University, Changsha 410083, China. w-sh-g@163.com.
² Kunming Branch of the 705 Research lnstitute, China State Shipbuilding Corporation Limited, Kunming 650032, China.
³ School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, 610065, Chengdu, China. xiaodong2009@scu.edu.cn.
⁴ School of Chemical Engineering and Technology, Xi'an Jiaotong University, No. 28, West Xianning Road, Xi'an, Shaanxi 710049, China.
⁵ Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China.

PMID: 38234223
DOI: 10.1039/d3cc04496c

Abstract

Li- and Mn-rich layered oxides (LMLOs) are regarded as the most promising cathode materials for Li-ion batteries (LIBs), but they suffer from poor rate capability. Herein, a promising and practical method (i.e. a hydroxide coprecipitation method in combination with a microwave heating process) is developed to controllably synthesize cobalt-free Li[Li_0.2Ni_0.2Mn_0.6]O₂ with a layered/spinel heterostructure (LLNMO-LS). The cathode made of the LLNMO-LS delivers an excellent electrochemical performance, demonstrating a discharge capacity of 147 mA h g^-1 at 10C.