Robert Humphrey Doe

US Patent:

8361661, Jan 29, 2013

Filed:

Mar 8, 2011

Appl. No.:

13/043296

Inventors:

Robert Ellis Doe - Brighton MA, US
George Earl Blomgren - Lakewood OH, US
Kristin Aslaug Persson - Orinda CA, US

Assignee:

Pellion Technologies Inc. - Cambridge MA

International Classification:

H01M 10/56

US Classification:

429337, 4292181

Abstract:

A magnesium battery electrode assembly is described, including a current collector comprising a carbonaceous material and an electrode layer comprising an electrode active material disposed on the current collector.

US Patent:

20120219856, Aug 30, 2012

Filed:

Mar 2, 2012

Appl. No.:

13/410578

Inventors:

Robert E. DOE - Norwood MA, US
Timothy K. MUELLER - Somerville MA, US
Gerbrand CEDER - Wellesley MA, US
Jeremy BARKER - Oxfordshire, GB
Kristin A. PERSSON - Orinda CA, US

Assignee:

PELLION TECHNOLOGIES, INC. - Cambridge MA

International Classification:

H01M 4/64

US Classification:

429211

Abstract:

A compound of formula AMgMXor AMgM(XO)for use as electrode material in a magnesium battery is disclosed, wherein A, M, X, b′, a, b, y, and z are defined herein.

US Patent:

20120219859, Aug 30, 2012

Filed:

Mar 2, 2012

Appl. No.:

13/410537

Inventors:

Robert E. DOE - Norwood MA, US
Timothy K. MUELLER - Somerville MA, US
Gerbrand CEDER - Wellesley MA, US
Jeremy BARKER - Oxfordshire, GB
Kristin A. PERSSON - Orinda CA, US

Assignee:

PELLION TECHNOLOGIES, INC. - Cambridge MA

International Classification:

H01M 4/58
H01M 4/48
H01M 4/485

US Classification:

429219, 429220, 429221, 429223, 429224, 429229, 4292311

Abstract:

A compound of formula AMgMXor AMgM(XO)for use as electrode material in a magnesium battery is disclosed, wherein A, M, X, b′, a, b, y, and z are defined herein.

US Patent:

20130089486, Apr 11, 2013

Filed:

Feb 22, 2011

Appl. No.:

13/579202

Inventors:

Gerbrand Ceder - Wellesley MA, US
Hailong Chen - Cambridge MA, US
Robert E. Doe - Brighton MA, US
Geoffrey Hautier - Somerville MA, US
Anubhav Jain - Cambridge MA, US
ByoungWoo Kang - Cambridge MA, US

Assignee:

Massachusetts Institute of Technology - Cambridge MA

International Classification:

H01M 4/525
H01M 4/505

US Classification:

423306

Abstract:

The present invention generally relates to carbophosphates and other compounds. Such compounds may be used in batteries and other electrochemical devices, or in other applications such as those described herein. One aspect of the invention is generally directed to carbophosphate compounds, i.e., compounds containing carbonate and phosphate ions. For example, according to one set of embodiments, the compound has a formula A(M)(PO)(CO), where M comprises one or more cations. A may include one or more alkali metals, for example, lithium and/or sodium. In some cases, x is greater than about 0.1, a is between about 0.1 and about 5.1, and b is between about 0.1 and about 5.1. In certain embodiments, the compound may have a unit cell atomic arrangement that is isostructural to to unit cells of the minerals sidorenkite, bonshtedtite, bradleyite, crawfordite, or ferrotychite. In some embodiments, the compound may have a formula A(M)(YO)(XO), where A comprises one or more alkali metals, M comprises one or more cations, X includes B, C, and/or N, and Y includes Si, P, As, S, V, Nb, Mo, and/or W. In some cases, x is greater than about 0.1, a is between about 0.1 and about 5.1, and b is between about 0.1 and about 5.1. Other aspects of the invention are generally directed to techniques for making or using such compounds, kits involving such compounds, and the like.

US Patent:

20130115521, May 9, 2013

Filed:

Dec 21, 2012

Appl. No.:

13/724057

Inventors:

Robert Ellis Doe - Norwood MA, US
Kristin A. Persson - Orinda CA, US
David Eaglesham - Lexington MA, US
Andrew Gmitter - Cambridge MA, US

Assignee:

PELLION TECHNOLOGIES, INC. - Cambridge MA

International Classification:

H01M 4/66
H01M 10/056

US Classification:

429329, 429199, 429200, 429337, 429211, 429201, 429341, 429326

Abstract:

A magnesium battery electrode assembly is described, including a current collector comprising a metal, an overlayer material on the metal and an electrode layer comprising an electrode active material disposed on the current collector. The overlayer material passivates the metal, or inhibits a corrosion reaction that would occur between the metal and an electrolyte in the absence of the overlayer material.

US Patent:

20130252112, Sep 26, 2013

Filed:

Mar 14, 2013

Appl. No.:

13/803321

Inventors:

Robert Ellis Doe - Norwood MA, US
George Hamilton Lane - St. Helens, AU
Robert E. Jilek - Belmont MA, US
Jaehee Hwang - Cambridge MA, US

Assignee:

PELLION TECHNOLOGIES, INC. - Cambridge MA

International Classification:

H01M 10/056

US Classification:

429328, 429199, 429330

Abstract:

A rechargable magnesium battery having an non-aqueous electrolyte is provided. The properties of the electrolyte include high conductivity, high Coulombic efficiency, and an electrochemical window that can exceed 3.5 V vs. Mg/Mg. The use of the electrolyte promotes the electrochemical deposition and dissolution of Mg without the use of any Grignard reagents, other organometallic materials, tetraphenyl borate, or tetrachloroaluminate derived anions. Other Mg-containing electrolyte systems that are expected to be suitable for use in secondary batteries are also described.

US Patent:

20130252114, Sep 26, 2013

Filed:

Mar 14, 2013

Appl. No.:

13/803382

Inventors:

Robert Ellis Doe - Norwood MA, US
George Hamilton Lane - St. Helens, AU
Robert E. Jilek - Belmont MA, US
Jaehee Hwang - Cambridge MA, US

Assignee:

PELLION TECHNOLOGIES, INC. - Cambridge MA

International Classification:

H01M 10/056

US Classification:

429337, 429199, 429341

Abstract:

A electrochemical cell having an non-aqueous electrolyte is provided. The properties of the electrolyte include high conductivity, high Coulombic efficiency, and an electrochemical window that can exceed 3.5 V vs. Mg/Mg. The use of the electrolyte promotes the electrochemical deposition and dissolution of Mg without the use of any Grignard reagents, other organometallic materials, tetraphenyl borate, or tetrachloroaluminate derived anions. Other Mg-containing electrolyte systems that are expected to be suitable for use in secondary batteries are also described.

US Patent:

20130260225, Oct 3, 2013

Filed:

Mar 11, 2013

Appl. No.:

13/794508

Inventors:

Robert Ellis Doe - Norwood MA, US
Craig Michael Downie - Waltham MA, US
Christopher Fischer - Somerville MA, US
George Hamilton Lane - St. Helens, AU
Dane Morgan - Middleton WI, US
Josh Nevin - Belmont MA, US
Gerbrand Ceder - Wellesley MA, US
Kristin Aslaug Persson - Orinda CA, US
David Eaglesham - Lexington MA, US

Assignee:

Pellion Technologies, Inc. - Cambridge MA

International Classification:

H01M 4/38

US Classification:

429188, 429209, 4292316, 429219, 429220, 4292315, 429221, 429217

Abstract:

Electrochemical devices which incorporate cathode materials that include layered crystalline compounds for which a structural modification has been achieved which increases the diffusion rate of multi-valent ions into and out of the cathode materials. Examples in which the layer spacing of the layered electrode materials is modified to have a specific spacing range such that the spacing is optimal for diffusion of magnesium ions are presented. An electrochemical cell comprised of a positive intercalation electrode, a negative metal electrode, and a separator impregnated with a nonaqueous electrolyte solution containing multi-valent ions and arranged between the positive electrode and the negative electrode active material is described.