Study on preparation of LiFePO4 nanoparticle by template method

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  • Research Institute,Guangdong Brunp Recycling Technology Co.,Ltd.,Foshan 528100

Received date: 2020-05-19

  Revised date: 2021-06-17

  Online published: 2021-09-30

Abstract

The lithium iron phosphate (LiFePO4) nanoparticles were successfully synthesized by one-step method and two-step method respectively,using spherically porous carbon(3DOM carbon) as a template.The properties of the material were examined by X-ray diffraction(XRD),scanning electron microscope(SEM),transmission electron microscope(TEM),laser particle size analyzer,and coin cell tests.The material synthesized by two-step method(two-step LFP) had smaller particle size,which resulted in higher specific capacity and better rate performance than the one synthesized by one-step method(one-pot LFP).The discharge specific capacity of two-step LFP was about 136mAh/g at 1C,and for one-pot LFP 109mAh/g at 1C.After cycles,the capacity of two-step LFP had no significant attenuation,while the capacity of one-pot LFP quickly degraded to below 100mAh/g after a few cycles.Study shown that the particle size had a critical effect on the electrochemical performance of LiFePO4,and the template was an effective way to control the particle size of LiFePO4 nanoparticle.

Cite this article

Wang Yuan, Ruan Dingshan, Zeng Yong, Zhang Yingjiao . Study on preparation of LiFePO4 nanoparticle by template method[J]. New Chemical Materials, 2021 , 49(9) : 151 -154 . DOI: 10.19817/j.cnki.issn 1006-3536.2021.09.033

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