Improved Electrochemical Properties of LiCoO&lt;sub&gt;2&lt;/sub&gt; via Ni, Mn Co-doping from LiNi&lt;sub&gt;0.8&lt;/sub&gt;Co&lt;sub&gt;0.1&lt;/sub&gt;Mn&lt;sub&gt;0.1&lt;/sub&gt;O&lt;sub&gt;2&lt;/sub&gt; for Rechargeable Lithium-ion Batteries

Baocheng Pang; Jian Huang; Jiawen Ge; Yulin Luo; Mingjiong Zhou; Luo Yu; Shigeto Okada

doi:10.5796/electrochemistry.19-00074

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Improved Electrochemical Properties of LiCoO2 via Ni, Mn Co-doping from LiNi0.8Co0.1Mn0.1O2 for Rechargeable Lithium-ion Batteries

Baocheng Pang Jian Huang Jiawen Ge Yulin Luo Mingjiong Zhou Luo Yu Shigeto Okada

Year: 2020 Journal: Electrochemistry Vol: 88 (4)Pages: 295-299 Publisher: The Electrochemical Society of Japan

DOI: 10.5796/electrochemistry.19-00074

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Abstract

A LiCoO2/LiNi0.8Co0.1Mn0.1O2 composite was prepared by the combination of mechanical ball milling and heat treatment. The as-prepared LiCoO2/LiNi0.8Co0.1Mn0.1O2 composite was characterized by X-ray diffraction, scanning electron microscopy, and energy-dispersive X-ray Spectroscopy. The LiCoO2/LiNi0.8Co0.1Mn0.1O2 composite was utilized as cathode material for lithium-ion batteries. Compared with the milled LiCoO2/LiNi0.8Co0.1Mn0.1O2 composite, the LiCoO2/LiNi0.8Co0.1Mn0.1O2 composite after heat treatment exhibited superior performance, including in an increased coulombic efficiency, better capacity retention and enhanced rate capability. The present work demonstrated that Ni and Mn from LiNi0.8Co0.1Mn0.1O2 were co-doped for the LiCoO2 during high temperature, resulting in improving the electrochemical properties of the LiCoO2/LiNi0.8Co0.1Mn0.1O2 composite.

Keywords:

Materials science Composite number Electrochemistry Faraday efficiency Scanning electron microscope Lithium (medication) Ball mill Doping Cathode Cobalt Chemical engineering Analytical Chemistry (journal) Nuclear chemistry Metallurgy Composite material Chemistry Electrode Physical chemistry Organic chemistry

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Advancements in Battery Materials

Physical Sciences → Engineering → Electrical and Electronic Engineering

Extraction and Separation Processes

Physical Sciences → Engineering → Mechanical Engineering

Advanced Battery Materials and Technologies

Physical Sciences → Engineering → Electrical and Electronic Engineering

Improved Electrochemical Properties of LiCoO<sub>2</sub> via Ni, Mn Co-doping from LiNi<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>O<sub>2</sub> for Rechargeable Lithium-ion Batteries

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