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Abstract

The LiMnPO4/C composites were prepared using a solid-state reaction with addition of the resorcinol formaldehyde resin as the carbon source. The effects of reaction temperature and time on the crystal structure, morphology and electrochemical properties of the LiMnPO4/C composites were investigated. The results show that the best performance was achieved with the LiMnPO4/C composites synthesized at 600 oC for 12 h which had the particle sizes about 100~200 nm. The initial discharge capacities were 121.6 mAh?g-1 at 0.02C, 110 mAh?g-1 at 0.1C and more than 60 mAh?g-1 at 1C. An overall reversible capacity of 110 mAh?g-1 had been retained after 20 cycles.

Graphical Abstract

Keywords

lithium manganese phosphate, solide-state reaction, resorcinol formaldehyde resin, lithium ion battery, cathode material

Publication Date

2011-08-28

Online Available Date

2011-06-09

Revised Date

2011-04-26

Received Date

2011-03-24

References

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