Carbon-containing lithium-iron composite phosphorus oxide...

Details Carbon-containing lithium-iron composite phosphorus oxide... Carbon-containing lithium-iron composite phosphorus oxide...

2006-04-11

2006-04-11

Kopec, Mark (Department: 1751)

Compositions

Electrically conductive or emissive compositions

Metal compound containing

C252S502000, C252S519540, C252S521600, C423S306000, C423S593100, C423S594120, C429S221000, C429S218100

Reexamination Certificate

active

07025907

ABSTRACT:
A carbon-containing lithium-iron composite phosphorus oxide for a lithium secondary battery positive electrode active material, includes particles being composed of a lithium-iron composite phosphorus oxide having an olivine structure whose basic composition is LiFePO4, and being composited with carbonaceous fine particles. A process for producing the same includes the steps of mixing a lithium compound making a lithium source, an iron compound making an iron source, a phosphorus-containing ammonium salt making a phosphorus source and carbonaceous fine particles, thereby preparing a mixture, and calcicing the mixture at a temperature of from 600° C. or more to 750° C. or less.

REFERENCES:
patent: 5910382 (1999-06-01), Goodenough et al.
patent: 6153333 (2000-11-01), Barker
patent: 6528033 (2003-03-01), Barker et al.
patent: 2002/0106563 (2002-08-01), Okawa et al.
patent: 2003/0190526 (2003-10-01), Saidi et al.
patent: 9-134725 (1997-05-01), None
patent: 11-25983 (1999-01-01), None
patent: 11-025983 (1999-01-01), None
patent: 2000-294238 (2000-10-01), None
patent: 2001-110414 (2001-04-01), None
Huasng et al, “Approaching Theoretical Capacity of LiFePO4 at Room Temperature at High Rates,” Electrochemical and Solid0State Letters, 2001,4(10), A170-A172.
Huang et al, “Approaching Theoretical Capacity of LiFePO4 at Room Temperature at High Rates,” Electrochemical and Solid-State Letters, 2001, 4(10), A 170-A172.
Weth et al, “The Structure of Carbon Blacks Measured with (Ultra) Small Angle X-ray Scattering,” J. Porous Matl. 2001, 8(4), pp 319-325, Abstract.
A. Yamada, et al. “Optimized LiFePO4for Lithium Battery Cathodes” Journal of the Electrochemical Society, 148 (3), 2001, pp. A224-A229.
H. Huang, et al. “Approaching Theoretical Capacity of LiFePO4at Room Temperature at High Rates” Electrochemical and Solid-State Letters, 4 (10), 2001, pp. A170-A172.
A. K. Padhi, et al. “Phospho-Olivines as Positive-Electrode Materials for Rechargeable Lithium Batteries” J. Electrochem. Soc., vol. 144, No. 4, Apr. 1997, pp. 1188-1194.

Affiliated with

Also associated with

Rating

Carbon-containing lithium-iron composite phosphorus oxide... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Carbon-containing lithium-iron composite phosphorus oxide..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carbon-containing lithium-iron composite phosphorus oxide... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3543139