The synergistic effect between LiNi0.5Co0.2Mn0.3O2 and LiFe0.15Mn0.85PO4/C on rate and thermal performance for lithium ion battery

The synergistic effect between LiNi0.5Co0.2Mn0.3O2 and LiFe0.15Mn0.85PO4/C on rate and thermal performance for lithium ion battery

A blend cathode has been prepared by mixing both the LiNi0.5Co0.2Mn0.3O2 (NCM523) of high energy density and high specific capacity and the LiFe0.15Mn0.85PO4/C (LFMP/C) of excellent thermal stability via a low-speed ball-milling method. The lithium ion batteries (LIBs) using the blend cathode with L...

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Veröffentlicht in:ACS applied materials & interfaces 2018-04
Hauptverfasser: Sun, Guiyan, Lai, Shaobo, Kong, Xiangbang, Chen, Zhiqiang, Li, Kun, Zhou, Rong, Wang, Jing, Zhao, Jinbao
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container_title ACS applied materials & interfaces
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creator Sun, Guiyan
Lai, Shaobo
Kong, Xiangbang
Chen, Zhiqiang
Li, Kun
Zhou, Rong
Wang, Jing
Zhao, Jinbao
description A blend cathode has been prepared by mixing both the LiNi0.5Co0.2Mn0.3O2 (NCM523) of high energy density and high specific capacity and the LiFe0.15Mn0.85PO4/C (LFMP/C) of excellent thermal stability via a low-speed ball-milling method. The lithium ion batteries (LIBs) using the blend cathode with LFMP/C of optimum percent exhibit better capacity retention after 100 cycles than those using only single NCM523 or LFMP/C. Both theoretical simulation and experimental rate performances demonstrate that the electrochemical property of blend cathode materials is predictable and economical. In addition, the thermal behaviors of blend cathodes are studied by using differential scanning calorimeter (DSC) analysis. The thermal stability of blend cathode materials behaves better than that of the bare NCM523 accompanied with electrolyte. It is found that the outstanding rate and thermal performance of the blend cathode is due to the prominent synergistic effect between NCM523 and LFMP/C, and the 10% LFMP/C in the blend cathode materials is most adaptable as considering both electrochemical and thermal properties simultaneously.
doi_str_mv 10.1021/acsami.8b02102
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The lithium ion batteries (LIBs) using the blend cathode with LFMP/C of optimum percent exhibit better capacity retention after 100 cycles than those using only single NCM523 or LFMP/C. Both theoretical simulation and experimental rate performances demonstrate that the electrochemical property of blend cathode materials is predictable and economical. In addition, the thermal behaviors of blend cathodes are studied by using differential scanning calorimeter (DSC) analysis. The thermal stability of blend cathode materials behaves better than that of the bare NCM523 accompanied with electrolyte. 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title The synergistic effect between LiNi0.5Co0.2Mn0.3O2 and LiFe0.15Mn0.85PO4/C on rate and thermal performance for lithium ion battery
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