Lithium-manganese composite oxide granular secondary...

Details Lithium-manganese composite oxide granular secondary... Lithium-manganese composite oxide granular secondary...

Filed on

2007-05-15

Date issued

2007-05-15

Examiner

Vanoy, Timothy C. (Department: 1754)

Patent Class

Chemistry of inorganic compounds

SubClass

Oxygen or compound thereof

SubSubClass

Metal containing

Other Related Categories

C423S599000, C423S594150, C423S594600, C423S594400, C423S596000, C423S594200, C423S594160, C423S049000, C423S179500, C423S111000, C423S138000, C423S053000, C423S155000, C429S231100, C429S224000, C429S231300, C429S223000, C429S221000, C429S231600, C429S231500, C429S231950

Type

Reexamination Certificate

Status

active

Patent number

10505141

Description

ABSTRACT:
Granular secondary particles of a lithium-manganese composite oxide suitable for use in non-aqueous electrolyte secondary batteries showing high-output characteristics which are granular secondary particles made up of aggregated crystalline primary particles of a lithium-manganese composite oxide and have many micrometer-size open voids therein with a defined average diameter and total volume of open voids. A process for producing the granular secondary particles which includes spray-drying a slurry of at least a manganese oxide, a lithium source, and an agent for open-void formation to thereby granulate the slurry and then calcining the granules.

REFERENCES:
patent: 6670076 (2003-12-01), Iwata et al.
patent: 6706444 (2004-03-01), Numata et al.
patent: 6875416 (2005-04-01), Benz
patent: 6998069 (2006-02-01), Coluccia et al.
patent: 7008608 (2006-03-01), Park et al.
patent: 2000-323123 (2000-11-01), None
patent: 2001-143687 (2001-05-01), None
patent: 2002-053321 (2002-02-01), None
patent: 2002-53321 (2002-02-01), None
patent: WO 01/004975 (2001-01-01), None
English translation of Japan Patent Document No. 2002-53,321 A published Feb. 19, 2002.

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