MANGANESE PHOSPHATES AND RELATED ELECTRODE ACTIVE MATERIALS

Title:

MANGANESE PHOSPHATES AND RELATED ELECTRODE ACTIVE MATERIALS

Document Type and Number:

WIPO Patent Application WO/2011/037972

Kind Code:

A3

Abstract:

The invention provides electrode active materials comprising lithium or other alkali metals, manganese, a+3 oxidation state metal ion, and optionally other metals, and a phosphate moiety. Such electrode active materials include those of the formula: AaMnbMIcMIIdMIIIePO4 wherein (a) A is selected from the group consisting of Li, Na, K, and mixtures thereof, and 0 < a ≤ 1; (b) 0 < b ≤ l; (c) MI is a metal ion in the +3 oxidation state, and 0 < c < 0.5; (d) Mil is metal ion, a transition metal ion, a non-transition metal ion or mixtures thereof, and 0 ≤ d < 1; (e) Mill is a metal ion in the +1 oxidation state and 0 < e < 0.5; and wherein A, Mn, MI, MIl, MIll, PO4, a, b, c, d and e are selected so as to maintain electroneutrality of said compound.

Inventors:

HUANG HAITAO (US)
SAIDI YAZID M (US)

Application Number:

PCT/US2010/049781

Publication Date:

August 25, 2011

Filing Date:

September 22, 2010

Export Citation:

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Assignee:

VALENCE TECHNOLOGY INC (US)
HUANG HAITAO (US)
SAIDI YAZID M (US)

International Classes:

H01M4/58; C01B25/45; H01M10/0525

Foreign References:

KR20080047537A	2008-05-29
US20040018135A1	2004-01-29
US20040016632A1	2004-01-29
US20050194567A1	2005-09-08
US20080157024A1	2008-07-03

Other References: