In Situ Synthesis of Mn3 O4 Nanoparticles on Hollow Carbon Nanofiber as High-Performance Lithium-Ion Battery Anode

Dan Zhang; Guangshe Li; Jianming Fan; Baoyun Li; Liping Li

doi:10.1002/chem.201801196

In Situ Synthesis of Mn₃ O₄ Nanoparticles on Hollow Carbon Nanofiber as High-Performance Lithium-Ion Battery Anode

Chemistry. 2018 Jul 5;24(38):9632-9638. doi: 10.1002/chem.201801196. Epub 2018 Jun 10.

Authors

Dan Zhang¹, Guangshe Li¹, Jianming Fan², Baoyun Li¹, Liping Li¹

Affiliations

¹ State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P.R. China.
² College of Chemistry and Materials, Longyan University, Longyan, 364012, P.R. China.

PMID: 29697864
DOI: 10.1002/chem.201801196

Abstract

The practical applications of Mn₃ O₄ in lithium-ion batteries are greatly hindered by fast capacity decay and poor rate performance as a result of significant volume changes and low electrical conductivity. It is believed that the synthesis of nanoscale Mn₃ O₄ combined with carbonaceous matrix will lead to a better electrochemical performance. Herein, a convenient route for the synthesis of Mn₃ O₄ nanoparticles grown in situ on hollow carbon nanofiber (denoted as HCF/Mn₃ O₄ ) is reported. The small size of Mn₃ O₄ particles combined with HCF can significantly alleviate volume changes and electrical conductivity; the strong chemical interactions between HCF and Mn₃ O₄ would improve the reversibility of the conversion reaction for MnO into Mn₃ O₄ and accelerate charge transfer. These features endow the HCF/Mn₃ O₄ composite with superior cycling stability and rate performance if used as the anode for lithium-ion batteries. The composite delivers a high discharge capacity of 835 mA h g^-1 after 100 cycles at 200 mA g^-1 , and 652 mA h g^-1 after 240 cycles at 1000 mA g^-1 . Even at 2000 mA g^-1 , it still shows a high capacity of 528 mA h g^-1 . The facile synthetic method and outstanding electrochemical performance of the as-prepared HCF/Mn₃ O₄ composite make it a promising candidate for a potential anode material for lithium-ion batteries.

Keywords: carbon; electrochemistry; manganese; nanostructures; synthesis design.