LiNi1/3Co1/3Mn1/3O2 hollow nano-micro hierarchical microspheres with enhanced performances as cathodes for lithium-ion batteries

Jili Li, Chuanbao Cao*, Xingyan Xu, Youqi Zhu, Ruimin Yao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

116 Citations (Scopus)

Abstract

LiNi1/3Co1/3Mn1/3O2 hollow nano-micro hierarchical microspheres (NCM-HS) are synthesized using MnCO 3 both as a self-template and Mn source. The hollow microspheres with diameters of about 1 μm have walls about 250 nm thick, which are composed of approximately 100 nm primary nanoparticles. NCM-HS cathodes have an initial discharge capacity of 212 mA h g-1 at 0.1 C between 2.5 and 4.5 V. After 40 charge-discharge cycles, the capacity retention at 0.1 C is 85.1%. At higher rates, the reversible capacities of the NCM-HS cathodes are 208.9 (0.5 C), 204.8 (1 C), 180.7 (2 C), 155.7 (5 C) and 135.9 mA h g-1 (10 C). The high performances can be attributed to the distinctive hollow microspherical structures with the 100 nm building blocks, which could effectively reduce the path of Li ion diffusion, increase the contact area between electrodes and electrolyte and buffer the volume changes during the Li ion intercalation/ deintercalation processes.

Original languageEnglish
Pages (from-to)11848-11852
Number of pages5
JournalJournal of Materials Chemistry A
Volume1
Issue number38
DOIs
Publication statusPublished - 14 Oct 2013

Fingerprint

Dive into the research topics of 'LiNi1/3Co1/3Mn1/3O2 hollow nano-micro hierarchical microspheres with enhanced performances as cathodes for lithium-ion batteries'. Together they form a unique fingerprint.

Cite this