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ISSN: 2637-4609

Archives of Organic and Inorganic Chemical Sciences

Short Communication(ISSN: 2637-4609)

The Washing Effect of Quaternary Layered NCMA Cathode Materials

Volume 4 - Issue 4

Xiang Zhangb2, Yang Shi1, Shiguo Xua1*, Xiaoyan Zhoua1, Kaihua Xub2*, Yujun Zhanga1*, Wei Lia1*, Ningjing Liao1, Haibo wangcde3,4,5, Jianqing Zhao3,4

  • Author Information Open or Close
    • 1GEM new energy materials research institute, GEM (Wuxi) energy material CO, China
    • 2GEM CO., LTD, Shenzhen, 518101, China
    • 3Soochow Institute for Energy and Materials Innovation, School of Energy, Soochow University,China
    • 4Jiangsu Provincial Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies, Soochow University, China
    • 5Institute of Chemical Power Sources, Soochow University, China

    *Corresponding author: Shiguo Xua,GEM new energy materials research institute, GEM (Wuxi) energy material CO., LTD, Wuxi, 214142, China

Received: June 27, 2020;   Published: August 10, 2020

DOI: 10.32474/AOICS.2020.04.000193

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Abstract

Li(Ni0.82Co0.11Mn0.05Al0.01)O2 (NCMA) cathodes are synthesized by adding Al2O3 during high temperature solid state reaction. The results show that Al element can largely increase the surface stability of cathode compared to pristine NCM cathode and thus suppress the severe capacity fading after washing process. NCMA delivers a discharge capacity of 203.8 mAh g-1 at 0.2 C, with an outstanding capacity retention of 94% after 50 cycles at 25°C. This proposed synthesis strategy demonstrates that an optimal doping method will immensely retain the electrochemical performance while reduce content of the residual lithium compounds during the washing process which promote industrial fabrication of cathode materials.

Keywords: NCMA; washing process; cathode material; Li-ion battery Abbreviations: Li(Ni0.82Co0.11Mn0.05Al0.01)O2 (NCMA); Li(Ni0.83Co0.12Mn0.05)O2 (NCM); Scanning electron microscope (SEM); X-ray diffraction spectra (XRD); Cyclic voltammetry (CV); Electrochemical impedance spectroscopy (EIS)

Abstract| Introduction| Experimental Method| Results and discussion| Conclusion| Declarations of Interest| Acknowledgements| References|

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