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Improved Electrode Performance of Porous LiFePO 4 Using RuO 2 as an Oxidic Nanoscale Interconnect
Author(s) -
Hu Y.S.,
Guo Y.G.,
Dominko R.,
Gaberscek M.,
Jamnik J.,
Maier J.
Publication year - 2007
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200700697
Subject(s) - materials science , interconnection , nanometre , carbon fibers , nanoscopic scale , electrode , porosity , nanotechnology , composite number , computer science , composite material , telecommunications , chemistry
By using nanometer‐sized RuO 2 to “metalize” tiny pores and even “repair” incomplete electronically conducting (carbon) networks in porous carbon‐containing LiFePO 4 (see figure), the kinetics and rate capability of the composite are significantly improved. The key lies in the bonding properties of RuO 2 , which enables good contact to both the oxidic storage material as well as the carbon structures used as current collector.