Highly crystalline Mn2O3 or Mn3O4 manganese oxides

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6517803
APP PUB NO 20010022959A1
SERIAL NO

09842968

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention includes lithium manganese oxide spinel compounds having a low porosity, a high tap density and a high pellet density, and methods of preparing these compounds. In particular, the method comprises preparing a lithium manganese oxide with a spinel structure and having the formula: wherein: Li.sub.1+X Mn.sub.2-Y M.sub.m.sub..sub.1 .sup.1 M.sub.m.sub..sub.2 .sup.2 . . . M.sub.m.sub..sub.k .sup.k O.sub.4+Z M.sup.1, M.sup.2, . . . M.sup.k are cations different than lithium or manganese selected from the group consisting of alkaline earth metals, transition metals, B, Al, Si, Ga and Ge; X, Y, m.sub.1, m.sub.2, . . . , m.sub.k, each have a value between 0 and 0.2; Z has a value between -0.1 and 0.2; and X, Y, m.sub.1, m.sub.2, . . . m.sub.k are selected to satisfy the equation: Y=X+m.sub.1 +m.sub.2 + . . . +m.sub.k.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
FMC CORPORATIONPHILADELPHIA, PA260

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Barnette, D Wayne Kings Mountain, NC 7 109
Faulkner, Titus Gastonia, NC 19 209
Manev, Vesselin Gastonia, NC 12 195

Cited Art Landscape

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* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM (3)
7718319 Cation-substituted spinel oxide and oxyfluoride cathodes for lithium ion batteries 6 2007
* 2008/0157,027 Cation-Substituted Spinel Oxide and Oxyfluoride Cathodes for Lithium Ion Batteries 15 2007
8722246 Cation-substituted spinel oxide and oxyfluoride cathodes for lithium ion batteries 0 2010
* Cited By Examiner