典型文献
Conducting network interface modulated rate performance in LiFePO4/C cathode materials
文献摘要:
Carbon can play a critical role in electrode,especially for LiFePO4 cathode,not only serving as con-tinuous conducting network for electron pathway,but also boosting Li+diffusion through providing sufficient elec-trons.Here,we report the modulation of electrode/elec-trolyte interface to yield excellent rate performance by creating cross-linked conducting carbon network in LiFePO4/C cathode material.Such conducting networks inhibit agglomeration and growth of LiFePO4/C primary particles and hence lead to a short Li+diffusion pathway.Furthermore,it also offers fast electron transmission rate and efficient electron for Li storage in the LiFePO4 sheath.The LiFePO4/C with carbon nanotubes(CNTs)delivers a discharge capacity of 150.9 mAh·g-1 at 0.1C(initial Coulombic efficiency of 96.4%)and an enhanced rate capability(97.2 mAh·g-1 at 20.0C).Importantly,it exhi-bits a high cycle stability with a capacity retention of 90.3%even after 800 cycles at 5.0C(0.85 A·g-1).This proposed interface design can be applied to a variety of battery electrodes that face challenges in electrical contact and ion transport.
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作者姓名:
Ji-Ming Peng;Zhi-Qiang Chen;Yu Li;Si-Jiang Hu;Qi-Chang Pan;Feng-Hua Zheng;Hong-Qiang Wang;Qing-Yu Li
作者机构:
Guangxi Key Laboratory of Low Carbon Energy Materials,School of Chemical and Pharmaceutical Sciences,Guangxi New Energy Ship Battery Engineering Technology Research Center,Guangxi Normal University,Guilin 541004,China;Hubei Key Laboratory for Processing and Application of Catalytic Materials,College of Chemical Engineering,Huanggang Normal University,Huanggang 438000,China
文献出处:
引用格式:
[1]Ji-Ming Peng;Zhi-Qiang Chen;Yu Li;Si-Jiang Hu;Qi-Chang Pan;Feng-Hua Zheng;Hong-Qiang Wang;Qing-Yu Li-.Conducting network interface modulated rate performance in LiFePO4/C cathode materials)[J].稀有金属(英文版),2022(03):951-959
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0.618696
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