In:
Nanoscale Research Letters, Springer Science and Business Media LLC, Vol. 14, No. 1 ( 2019-12)
Abstract:
The reasonable design of nanostructure is the key to solving the inherent defects and realizing a high performance of Li 2 FeSiO 4 cathode materials. In this work, a novel heterostructure CNT@Li 2 FeSiO 4 @C has been designed and synthesized and used as a cathode material for lithium-ion battery. It is revealed that the product has a uniform core-shell structure, and the thickness of the Li 2 FeSiO 4 layer and the outer carbon layer is about 19 nm and 2 nm, respectively. The rational design effectively accelerates the diffusion of lithium ions, improves the electric conductivity, and relieves the volume change during the charging/discharging process. With the advantages of its specific structure, CNT@Li 2 FeSiO 4 @C has successfully overcome the inherent shortcomings of Li 2 FeSiO 4 and shown good reversible capacity and cycle properties.
Type of Medium:
Online Resource
ISSN:
1931-7573
,
1556-276X
DOI:
10.1186/s11671-019-3165-x
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2019
detail.hit.zdb_id:
2253244-4
detail.hit.zdb_id:
3149496-1
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