Conductive surface modification of LiFePO4 with nitrogen doped carbon layers for lithium-ion batteries

Journal Article · Sun Jan 01 00:00:00 EST 2012 · Journal of Materials Chemistry

DOI:https://doi.org/10.1039/c2jm15325d· OSTI ID:1035535

Yoon, Sukeun ^[1]; Liao, Chen ^[1]; Sun, Xiao-Guang ^[1]; Bridges, Craig A ^[1]; Unocic, Raymond R ^[1]; Nanda, Jagjit ^[1]; Dai, Sheng ^[1]; Paranthaman, Mariappan Parans ^[1]

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1. ORNL

The LiFePO4 rod surface modified with nitrogen doped carbon layer has been prepared using hydrothermal processing followed by post-annealing in the presence of an ionic liquid. The coated LiFePO4 rod exhibits good capacity retention and high rate capability as the nitrogen doped carbon improves conductivity and prevents aggregation of the rod during cycling.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Shared Research Equipment Collaborative Research Center
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1035535
• Journal Information: Journal of Materials Chemistry, Vol. 22, Issue 3; ISSN 0959-9428
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
CAPACITY
CARBON
MODIFICATIONS
MOLTEN SALTS
NITROGEN
PROCESSING
RETENTION
LITHIUM IONS
ELECTRIC BATTERIES