Gilbert N Riley, 61375 Highland St, Cherry Brook, MA 02493

7087348, Aug 8, 2006

Jan 30, 2003

10/354405

Richard K. Holman - Belmont MA, US
Yet Ming Chiang - Framingham MA, US
Antoni S. Gozdz - Marlborough MA, US
Andrew L. Loxley - Roslindale MA, US
Benjamin Nunes - Allston MA, US
Michele Ostraat - Whitehouse Station NJ, US
Gilbert N. Riley - Marlborough MA, US
Michael S. Viola - Burlington MA, US

A123 Systems, Inc. - Watertown MA

H01M 4/02
B23H 3/04

429209, 429217, 429137, 429233, 20429001

Electrodes for use in electrochemical devices are disclosed. More particularly coated electrode particles for use in solid electrochemical cells and materials and systems for improving electronic conductivity and repulsive force characteristics of an electrode network are disclosed. An article containing a plurality of distinct first particles that form an electrode network in which the distinct first particles are coated with a system of electrically conductive material is also disclosed. In some embodiments, the coating layer also includes a low refractive index material. In some embodiments, the coating layer of the electroactive material includes a plurality of second particles.

7348101, Mar 25, 2008

Feb 7, 2005

11/052971

Antoni S. Gozdz - Marlborough MA, US
Andrew C. Chu - Cambridge MA, US
Yet Ming Chiang - Framingham MA, US
Gilbert N. Riley - Marlborough MA, US

A123 Systems, Inc. - Watertown MA

H01M 4/58

42923195, 4292181

A high capacity, high charge rate lithium secondary cell includes a high capacity lithium-containing positive electrode in electronic contact with a positive electrode current collector, said current collector in electrical connection with an external circuit, a high capacity negative electrode in electronic contact with a negative electrode current collector, said current collector in electrical connection with an external circuit, a separator positioned between and in ionic contact with the cathode and the anode, and an electrolyte in ionic contact with the positive and negative electrodes, wherein the total area specific impedance for the cell and the relative area specific impedances for the positive and negative electrodes are such that, during charging at greater than or equal to 4C, the negative electrode potential is above the potential of metallic lithium. The current capacity per unit area of the positive and negative electrodes each are at least 3 mA-h/cm, the total area specific impedance for the cell is less than about 20 Ω-cm, and the positive electrode has an area specific impedance rand the negative electrode has an area specific impedance r, and wherein the ratio of rto ris at least about 10.

2001000, Jul 26, 2001

Mar 1, 2001

09/797487

Gilbert Riley - Marlborough MA, US

H01B001/00
C23C002/00

505/432000, 505/433000, 505/491000

A modified powder-in-tube process produces a superconductor wire having a significantly greater current density than will a superconductor wire of the same nominal superconductor composition produced using conventional draw-swage-extrude-roll deformation. In the process disclosed, a superconductor precursor is placed within a ductile tube, the tube with the powder therein is then deformed into a cross-section substantially corresponding to that of the end product, and the deformed tube is then subject to a plurality of heat treatments to convert the precursor into the desired superconducting ceramic oxide phase. Before the last of the heat treatments, the tube is isostatically pressed to densify and texture the superconductor precursor oxide in the tube.

2001002, Oct 4, 2001

Jan 25, 2001

09/769705

Gregory Snitchler - Shrewsbury MA, US
Jeffrey Seuntjens - Spencer MA, US
William Barnes - Brockton MA, US
Gilbert Riley - Marlborough MA, US

American Superconductor Corporation Delaware Corporation

H01L033/00
B23P011/00

505/430000, 505/330000

A cabled conductor comprises a plurality of transposed strands each comprising one or more preferably twisted filaments preferably surrounded or supported by a matrix material and comprising textured anisotropic superconducting compounds which have crystallographic grain alignment that is substantially unidirectional and independent of the rotational orientation of the strands and filaments in the cabled conductor. The cabled conductor is made by forming a plurality of suitable composite strands, forming a cabled intermediate from the strands by transposing them about the longitudinal axis of the conductor at a preselected strand lay pitch, and, texturing the strands in one or more steps including at least one step involving application of a texturing process with a primary component directed orthogonal to the widest longitudinal cross-section of the cabled intermediate, at least one such orthogonal texturing step occurring subsequent to said strand transposition step. In a preferred embodiment, the filament cross-section, filament twist pitch, and strand lay pitch are cooperatively selected to provide a filament transposition area which is always at least ten times the preferred direction area of a typical grain of the desired anisotropic superconducting compound. For materials requiring biaxial texture, the texturing step preferably includes application of a texturing process with a second primary component in a predetermined direction in the plane of the widest longitudinal cross-section of the conductor.

2002000, Jan 10, 2002

Mar 22, 2001

09/815063

Lawrence Masur - Needham MA, US
Donald Parker - Randolph MA, US
Eric Podtburg - Natick MA, US
Peter Roberts - Groton MA, US
Ronald Parrella - Shrewsbury MA, US
Gilbert Riley - Marlborough MA, US
Steven Hancock - Worcester MA, US

American Superconductor Corporation, a Delaware corporation

H01B001/00
H01F001/00

505/100000

The invention features high performing composite superconducting oxide articles that can be produced from OPIT precursors substantially without poisoning the superconductor. In general, the superconducting oxide is substantially surrounded by a matrix material. The matrix material contains a first constraining material including a noble metal and a second metal. The second metal is a relatively reducing metal which lowers the overall oxygen activity of the matrix material and the article at a precursor process point prior to oxidation of the second metal. The second metal is substantially converted to a metal oxide dispersed in the matrix during or prior to a first phase conversion heat treatment but after formation of the composite, creating an ODS matrix.

2002001, Feb 7, 2002

Sep 21, 2001

09/960189

Martin Rupich - Framingham MA, US
William Carter - Chelmsford MA, US
Qi Li - Westborough MA, US
Alexander Otto - Chelmsford MA, US
Gilbert Riley - Marlborough MA, US

C01F001/00
H01B001/00
H01F001/00

505/510000, 029/599000, 505/736000, 505/121000

A novel process of the production and processing of high quality, high T(Bi,Pb)SCCO superconductors starts with fabrication of a precursor article including selected intermediate phases with desired chemical and structural properties. The precursor fabrication includes mixing raw powders with a desired ratio of Bi:Pb:Sr:Ca:Cu elements and reacting the mixture under different selected reaction conditions that form a precursor powder with a dominant (Bi, Pb)SCCO 2212 phase and without Ca—Pb—O phase, wherein the 2212 phase may be the orthorhombic 2212 phase. The precursor article is then subjected to optimized reaction and mechanical deformation processes that lead to a reaction induced texturing and deformation induced texturing, respectively. A heating process is used to convert the precursor powder to the 2223 phase and subsequent deformation and annealing processes may be used to form a substantially single phase, highly textured (Bi, Pb)SCCO 2223 superconductor with high Jc.

2002001, Feb 14, 2002

Feb 12, 2001

09/781371

Qi Li - Waltham MA, US
William Michels - Brookline MA, US
Ronald Parrella - Natick MA, US
Gilbert Riley - Marlborough MA, US
Mark Teplitsky - Westborough MA, US
Steven Fleshler - Brookline MA, US

H01B012/00

505/230000, 505/231000, 505/431000, 505/501000

The present invention provides a (Bi,Pb)SCCO-2223 oxide superconductor composite which exhibits improved critical current density and critical current density retention in the presence of magnetic fields. Retention of critical current density in 0.1 T fields (77 K, ⊥ ab plane) of greater than 35% is disclosed. Significant improvements in oxide superconductor wire current carrying capacity in a magnetic field are obtained by subjecting the oxide superconductor composite to a post-processing heat treatment which reduces the amount of lead in the (Bi,Pb)SCCO-2223 phase and forms a lead-rich non-superconducting phase. The heat treatment is carried out under conditions which localize the lead-rich phase at high energy sites in the composite.

2002011, Aug 15, 2002

Oct 25, 2001

10/061440

Qi Li - Marlborough MA, US
Eric Podtburg - Natick MA, US
Patrick Walsh - Cheshire CT, US
William Carter - Chelmsford MA, US
Gilbert Riley - Marlborough MA, US
Martin Rupich - Framingham MA, US
Elliott Thompson - Coventry RI, US
Alexander Otto - Chelmsford MA, US

C03C001/00
C22B001/00
H01B001/00

505/801000, 505/431000, 029/599000

A novel process of the production and processing of high quality, high T(Bi,Pb)SCCO superconductors starts with fabrication of a precursor article including selected intermediate phases with desired chemical and structural properties. The precursor fabrication includes introducing the reacted mixture having a dominant amount of the tetragonal BSCCO phase into a metal sheath, and sealing the reacted mixture within said sheath, heating the mixture at a second selected processing temperature in an inert atmosphere with a second selected oxygen partial pressure for a second selected time period, the second processing temperature and the second oxygen partial pressure being cooperatively selected to form a dominant amount of an orthorhombic BSCCO phase in the reacted mixture. The sealed sheath is deformed to form an elongated precursor article of a desired texture; and thereafter heated at a third selected processing temperature in an inert atmosphere with a third selected oxygen partial pressure for a third selected time period. The third processing temperature and third oxygen partial pressure are cooperatively selected to convert at least a portion of the orthorhombic BSCCO phase to the final superconducting BSCCO material.