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U.S. Department of Energy
Office of Scientific and Technical Information

Nickel-titanium-phosphate cathodes

Patent ·
OSTI ID:985709
Cathode materials having an improved electronic conductivity allowing for faster kinetics in the electrochemical reaction, as well as higher conductivity to meet the power requirements for many consumer applications, especially at low temperatures. The cathode material comprises a compound from the family of compounds where the basic unit is generally represented by Li.sub.xNi.sub.0.5TiOPO.sub.4. The structure of Li.sub.xNi.sub.0.5TiOPO.sub.4 includes corner sharing octahedra [TiO.sub.6] running along the C-axis. The structure is such that nearly three Li atoms are being inserted in Li.sub.xNi.sub.0.5TiOPO.sub.4. A cell in accordance with the principles of the present invention is rechargable and demonstrates a high capacity of lithium intercalation and fast kinetics.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
W-31109-ENG-38;
Assignee:
UChicago Argonne LLC (Chicago, IL)
Patent Number(s):
7,465,520
Application Number:
10/858,806
OSTI ID:
985709
Country of Publication:
United States
Language:
English

References (2)

Preparation and structural characterization of two new titanium phosphates NaCaTi(PO) AND NiTiOPO journal January 1998
Ab initio determination and Rietveld refinement of the crystal structure of Ni 0.50 TiO ( PO 4 ) journal March 1999

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