Michael R Wixom

age ~67

from Ann Arbor, MI

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Michael Wixom Phones & Addresses

Multi-Phase Material And Electrodes Made Therefrom
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US Patent:

6524744, Feb 25, 2003
Filed:

Dec 7, 1999
Appl. No.:

09/454571
Inventors:

Daryl Clerc - Dexter MI
Matthew Fay - Ypsilanti MI
Jennifer Groff - Ann Arbor MI
Michael Wixom - Ann Arbor MI
Assignee:

T/J Technologies, Inc. - Ann Arbor MI
International Classification:

H01M 458
US Classification:

4292181, 429209
Abstract:

A multiphase material comprises a ceramic matrix material having one or more of Sn, Sb, Bi, Pb, Ag, In, Si and Ge nanodispersed in the matrix. The ceramic matrix is preferably based upon carbides, nitrides and oxides of group IV-VI transition metals taken singly or in combination.

Membrane For Fuel Cell, And Fuel Cell Incorporating That Membrane
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US Patent:

6878475, Apr 12, 2005
Filed:

Nov 21, 2003
Appl. No.:

10/719582
Inventors:

Michael Wixom - Ann Arbor MI, US
Hanwei Lei - Ann Arbor MI, US
Pu Zhang - Ann Arbor MI, US
Junqing Ma - Ann Arbor MI, US
Assignee:

T/J Technologies, Inc. - Ann Arbor MI
International Classification:

H01M008/10
US Classification:

429 33, 429314, 429316, 252 622
Abstract:

A proton exchange membrane for a fuel cell is prepared from a polyimidazole polymer having the formula: wherein R-Rare independently H, a halogen, an alkyl or a substituted alkyl. Xand Xare independently or an electron withdrawing group such as CN. The membrane may be doped to alter its conductivity. The membrane may be prepared from a copolymer of the polyimidazole. Also disclosed is a fuel cell incorporating the membrane.

Method For Making A Composite Electrode Material
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US Patent:

7282301, Oct 16, 2007
Filed:

Oct 28, 2005
Appl. No.:

11/261349
Inventors:

Michael R. Wixom - Ann Arbor MI, US
Chuanjing Xu - Ann Arbor MI, US
Assignee:

T/J Technologies, Inc. - Ann Arbor MI
International Classification:

H01M 4/40
H01M 4/58
H01M 4/00
C01B 25/30
C01B 25/37
US Classification:

42923195, 429221, 4292181, 2521821, 423306
Abstract:

A composite material includes a first phase which comprises LiM(PO)wherein M is at least one metal, y and z are independently 0, and x is less than or equal to 1. The material includes a second phase which has an electronic and/or lithium ion conductivity greater than that of the first phase. The material is prepared by heating a starting mixture which includes lithium, iron, a phosphate ion, and a catalyst in a reducing atmosphere. Also disclosed are electrodes which incorporate the material and batteries which utilize those electrodes as cathodes.

Electrode Material With Enhanced Ionic Transport Properties
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US Patent:

7842420, Nov 30, 2010
Filed:

Feb 2, 2006
Appl. No.:

11/345962
Inventors:

Michael R. Wixom - Ann Arbor MI, US
Chuanjing Xu - Ann Arbor MI, US
Assignee:

A123 Systems, Inc. - Watertown MA
International Classification:

H01M 4/58
US Classification:

42923195, 429209, 429221, 423306
Abstract:

Materials useful as electrodes for lithium batteries have very good electronic and ionic conductivities. They are fabricated from a starting mixture which includes a metal, a phosphate ion, and an additive which enhances the transport of lithium ions in the resultant material. The mixture is heated in a reducing environment to produce the material. The additive may comprise a pentavalent metal or a carbon. In certain embodiments the material is a two-phase material. Also disclosed are electrodes which incorporate the materials and lithium batteries which incorporate those electrodes.

Alkali Metal Titanates And Methods For Their Synthesis
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US Patent:

7879493, Feb 1, 2011
Filed:

Jun 4, 2007
Appl. No.:

11/757658
Inventors:

Pu Zhang - Ann Arbor MI, US
Suresh Mani - Ann Arbor MI, US
Michael R. Wixom - Ann Arbor MI, US
Assignee:

A123 Systems, Inc. - Watertown MA
International Classification:

H01M 4/58
C01G 23/00
US Classification:

4292311, 4292315, 423598
Abstract:

Disclosed is a doped lithium titanate and its use as an electrode in a battery. Further disclosed is a method for making an alkali metal titanate, which method includes mixing an alkali metal compound and a titanium compound, impact milling the mixture, and heating the milled mixture for a time, and at a temperature, sufficient to convert the mixture to the alkali metal titanate. The alkali metal compound can be in the form of LiCOand the titanium compound can be in the form of TiO. A dopant may be included in the mixture.

Alkali Metal Titanates, And Electrodes And Batteries Based On The Same
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US Patent:

8076030, Dec 13, 2011
Filed:

Dec 12, 2007
Appl. No.:

11/954955
Inventors:

Pu Zhang - Ann Arbor MI, US
Suresh Mani - Ann Arbor MI, US
Yet-Ming Chiang - Framingham MA, US
Shih-Chieh Yin - Ann Arbor MI, US
Brian Glomski - Ypsilanti MI, US
Young-Il Jang - Newtonville MA, US
Christopher Silkowski - Livonia MI, US
Michael R. Wixom - Ann Arbor MI, US
Assignee:

A123 Systems, Inc. - Waltham MA
International Classification:

H01M 4/58
C01G 23/00
US Classification:

4292311, 423598
Abstract:

Disclosed is a lithium titanate material, which may include an additive, and its use as an electrode in a battery. Specifically disclosed is a lithium titanate based material, with primary particle size larger than 100 nm, having very good high rate charge and discharge capabilities when incorporated into a lithium battery.

Electrode Material With Enhanced Ionic Transport Properties
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US Patent:

8187753, May 29, 2012
Filed:

Nov 29, 2010
Appl. No.:

12/955091
Inventors:

Michael Wixom - Ann Arbor MI, US
Chuanjing Xu - Ann Arbor MI, US
Assignee:

A123 Systems, Inc. - Waltham MA
International Classification:

H01M 4/58
US Classification:

42923195, 4292315, 429221, 429209
Abstract:

Materials useful as electrodes for lithium batteries have very good electronic and ionic conductivities. They are fabricated from a starting mixture which includes a metal, a phosphate ion, and an additive which enhances the transport of lithium ions in the resultant material. The mixture is heated in a reducing environment to produce the material. The additive may comprise a pentavalent metal or a carbon. In certain embodiments the material is a two-phase material. Also disclosed are electrodes which incorporate the materials and lithium batteries which incorporate those electrodes.

Electrode Material With Enhanced Ionic Transport Properties
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US Patent:

8435678, May 7, 2013
Filed:

Apr 18, 2012
Appl. No.:

13/449938
Inventors:

Michael Wixom - Ann Arbor MI, US
Chuanjing Xu - Ann Arbor MI, US
Assignee:

A123 Systems, LLC - Waltham MA
International Classification:

H01M 4/13
US Classification:

42923195, 429221, 4292315
Abstract:

Materials useful as electrodes for lithium batteries have very good electronic and ionic conductivities. They are fabricated from a starting mixture which includes a metal, a phosphate ion, and an additive which enhances the transport of lithium ions in the resultant material. The mixture is heated in a reducing environment to produce the material. The additive may comprise a pentavalent metal or a carbon. In certain embodiments the material is a two-phase material. Also disclosed are electrodes which incorporate the materials and lithium batteries which incorporate those electrodes.