Method for making a battery

Details Method for making a battery Method for making a battery

2003-07-01

2009-12-15

Maples, John S (Department: 1795)

Metal working

Method of mechanical manufacture

Electrical device making

C029S623100, C429S231800, C429S052000

Reexamination Certificate

active

07632317

ABSTRACT:
A method for coating an active material with carbon to form an electrode material is disclosed, comprising: exposing olivine or nasicon to a carbon source gas in a furnace; and heating the carbon source gas to deposit carbon thereon. The carbon source gas, which may be mixed with an inert gas, generally decomposes between 100° C. and 1300° C. to generate carbon material. The amount of coated carbon on the olivine or nasicon is preferably <15 wt %, and more preferably about 4 wt % or less. Also disclosed is a battery comprising: a positive electrode comprising the inventive electrode material; a negative electrode; and an electrolyte.

REFERENCES:
patent: 5910382 (1999-06-01), Goodenough et al.
patent: 6514640 (2003-02-01), Armand et al.
patent: 6589696 (2003-07-01), Matsubara et al.
patent: 2002/0192137 (2002-12-01), Chaloner-Gill et al.
patent: 2003/0138697 (2003-07-01), Leising et al.
patent: 2003/0138698 (2003-07-01), Lee et al.
patent: 2004/0033360 (2004-02-01), Armand et al.
patent: 2004/0072075 (2004-04-01), Tsukamoto et al.
patent: 2200998 (1998-09-01), None
patent: 2270711 (2000-10-01), None
patent: 1 193 787 (2002-04-01), None
patent: 7335263 (1995-12-01), None
patent: 2001-110414 (2001-04-01), None
patent: 2001110414 (2001-04-01), None
patent: WO 02/27823 (2002-04-01), None
patent: WO 02/27824 (2002-04-01), None
patent: WO 02/046101 (2002-06-01), None
patent: WO 02/073716 (2002-09-01), None
R. Brec et al., Chemical and Electrochemical Study of the Li2FeS2Cathodic System, Mater. Res. Bull., 1980, 15,619-625.
V.B. Nalbandyan, et al., New Modification of Lithium Monoferrite and the Morphotropic Series AFeO2, Russian Journal of Inorganic Chemistry, 1987, 32, 3, 453-454.
A. Manthiram et al., Lithium Insertion into Fe2(MO4)3Frameworks: Comparison of M=W with M=Mo, Journal of Solid State Chemistry, 1987, 71,349-360.
R.W. Pekela, Organic Aerogels From The Polycondensation Of Resorcinol With Formaldehyde, Journal of Materials Science, 1989, 24, 3221-3227.
A.K. Padhi et al., Phospho-olivines as Positive-Electrode Materials for Rechargeable Lithium Batteries, J. Electrochem. Soc., 1997, 144, 4, 1188-1194.
A.K. Padhi et al., Effect of Structure on the Fe3+/Fe2+Redox Couple in Iron Phosphates, J. Electrochem. Soc., 1997, 144; 5, 1609-1613.
H. Huang et al., Approaching Theoretical Capacity of LiFePO4at Room Timperature at High Rates, Electrochemical and Solid-State Letters, 2001, 4(10), A170-A172.
S. Yang et al., Reactivity, Stability and Electrochemical Behavior of Lithium Iron Phosphates, Electrochemistry Communications, 2002, 4(3), 239-244.
P.P. Prosini et al.. Determination of the Chemical Diffusion Coefficient of Lithium in LiFePO4, Solid State Ionics, 2002, 148, 45-51.
F. Croce et al., A Novel Concept for the Synthesis of an Improved LiFePO4Lithium Battery Cathode, Electrochemical and Solid State Letters, 2002, 5(3), A57-A50.
I. Belharouak et al., Improved LiFePO4Cathode for Lithium-Ion Batteries, Presented at the 14th International Conference on Solid State Ionic's, Extended Abstract, Jun. 22-27, 2003, Monterey, California, USA, 2 pages.
F. Croce et al., Composite Ag-LiFePO4Cathode for Polymeric Lithium Batteries, The Electrochemical Society; http://www electrochem.org/meetings/future/203/meetng.htm, 1 page (no date).
A. D'Eplfanio at al., Quartz iron Phosphate As New Lithium Intercalation Electrode, The Electrochemical Society; http://www.electrochem.org/meetings/future/203/meetng.htm, 1 page (no date).

Affiliated with

Also associated with

Rating

Method for making a battery does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for making a battery, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making a battery will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4109461