Paul A Nelson

US Patent:

6858345, Feb 22, 2005

Filed:

Apr 9, 2002

Appl. No.:

10/118788

Inventors:

Khalil Amine - Downers Grove IL, US
Paul A. Nelson - Wheaton IL, US

Assignee:

The University of Chicago - Chicago IL

International Classification:

H01M006/42

US Classification:

429149, 429152, 429153, 429161

Abstract:

A high power bipolar battery, such as a high power lithium polymer battery is provided. The bipolar battery includes a plurality of multiple cell assemblies. The plurality of multiple cell assemblies is connected in series to form the high power bipolar battery. Each of the plurality of multiple cell assemblies includes a rigid core with a bipolar cell stack of multiple cells wound together around the rigid core to produce a large active cell area. The wound bipolar cell stack includes a positive battery connection and a negative battery connection. A container surrounds the bipolar cell stack. A positive terminal carried by the container is connected to the positive battery connection. A negative terminal carried by the container is spaced apart from the positive terminal and connected to the negative battery connection. A state-of-charge connector carried by the container is spaced apart from the positive and negative terminals. The state-of-charge connector include multiple conductors, each connected to a respective one of the multiple cells.

US Patent:

43723764, Feb 8, 1983

Filed:

Dec 9, 1980

Appl. No.:

6/214807

Inventors:

Paul A. Nelson - Wheaton IL
Jeffrey S. Horowitz - Woodridge IL

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

F28D 1500

US Classification:

16510412

Abstract:

A heat pump apparatus including a compact arrangement of individual tubular reactors containing hydride-dehydride beds in opposite end sections, each pair of beds in each reactor being operable by sequential and coordinated treatment with a plurality of heat transfer fluids in a plurality of processing stages, and first and second valves located adjacent the reactor end sections with rotatable members having multiple ports and associated portions for separating the hydride beds at each of the end sections into groups and for simultaneously directing a plurality of heat transfer fluids to the different groups. As heat is being generated by a group of beds, others are being regenerated so that heat is continuously available for space heating. As each of the processing stages is completed for a hydride bed or group of beds, each valve member is rotated causing the heat transfer fluid for the heat processing stage to be directed to that bed or group of beds. Each of the end sections are arranged to form a closed perimeter and the valve member may be rotated repeatedly about the perimeter to provide a continuous operation.

US Patent:

51943433, Mar 16, 1993

Filed:

Oct 9, 1990

Appl. No.:

7/594485

Inventors:

Ira D. Bloom - Bolingbrook IL
Paul A. Nelson - Wheaton IL
Donald R. Vissers - Naperville IL

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

H01M 400

US Classification:

429218

Abstract:

A method of fabricating an electrode for use in a metal chloride battery and an electrode are provided. The electrode has relatively larger and more uniform pores than those found in typical electrodes. The fabrication method includes the steps of mixing sodium chloride particles selected from a predetermined size range with metal particles selected from a predetermined size range, and then rigidifying the mixture. The electrode exhibits lower resistivity values of approximately 0. 5. OMEGA. cm. sup. 2 than those resistivity values of approximately 1. 0-1. 5. OMEGA. cm. sup. 2 exhibited by currently available electrodes.

US Patent:

45087970, Apr 2, 1985

Filed:

Jul 26, 1983

Appl. No.:

6/517473

Inventors:

Reinhard Knoedler - Nussloch, DE
Paul A. Nelson - Wheaton IL
Hiroshi Shimotake - Hinsdale IL
James E. Battles - Oak Forest IL

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

H01M 208
H01M 202

US Classification:

429184

Abstract:

A passthrough seal is disclosed for electrically isolating the terminal in a lithium/metal sulfide cell from the structural cell housing. The seal has spaced upper and lower insulator rings fitted snuggly between the terminal and an annularly disposed upstanding wall, and outwardly of a powdered insulator also confined between the upstanding wall and terminal. The adjacent surfaces of the upper insulator ring and the respective upstanding wall and terminal are conically tapered, diverging in the axial direction away from the cell interior, and a sealing ring is located between each pair of the adjacent surfaces. The components are sized so that upon appropriate movement of the upper insulator ring toward the lower insulator ring the powdered insulator and sealing rings are each compressed to a high degree. This compacts the powdered insulator thereby rendering the same highly impervious and moreover fuses the sealing rings to and between the adjacent surfaces. The upper and lower insulator rings might be formed of beryllium oxide and/or alumina, the powdered insulator might be formed of boron nitride, and the sealing rings might be formed of aluminum.

US Patent:

43573983, Nov 2, 1982

Filed:

Mar 5, 1981

Appl. No.:

6/240673

Inventors:

Paul A. Nelson - Wheaton IL
Hiroshi Shimotake - Hinsdale IL

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

H01M 226
H01M 644

US Classification:

429 94

Abstract:

A secondary, high temperature electrochemical cell especially adapted for lithium alloy negative electrodes, transition metal chalcogenide positive electrodes and alkali metal halide or alkaline earth metal halide electrolyte is disclosed. The cell is held within an elongated cylindrical container in which one of the active materials is filled around the outside surfaces of a plurality of perforate tubular current collectors along the length of the container. Each of the current collector tubes contain a concentric tubular layer of electrically insulative ceramic as an interelectrode separator. The active material of opposite polarity in elongated pin shape is positioned longitudinally within the separator layer. A second electrically conductive tube with perforate walls can be swagged or otherwise bonded to the outer surface of the pin as a current collector and the electrically insulative ceramic layer can be coated or otherwise layered onto the outer surface of this second current collector. Alternatively, the central pin electrode can include an axial core as a current collector.

US Patent:

40864049, Apr 25, 1978

Filed:

Apr 7, 1977

Appl. No.:

5/785639

Inventors:

Donald R. Vissers - Naperville IL
Paul A. Nelson - Wheaton IL
Thomas D. Kaun - Lisle IL
Zygmunt Tomczuk - Palos Hills IL

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

H01M 436

US Classification:

429220

Abstract:

Particles of carbonaceous matrices containing embedded electrode active material are prepared for vibratory loading within a porous electrically conductive substrate. In preparing the particles, active materials such as metal chalcogenides, solid alloys of alkali or alkaline earth metals along with other metals and their oxides in powdered or particulate form are blended with a thermosetting resin and particles of a volatile to form a paste mixture. The paste is heated to a temperature at which the volatile transforms into vapor to impart porosity at about the same time as the resin begins to cure into a rigid, solid structure. The solid structure is then comminuted into porous, carbonaceous particles with the embedded active material.

US Patent:

40487156, Sep 20, 1977

Filed:

Jan 27, 1976

Appl. No.:

5/652696

Inventors:

Donald R. Vissers - Naperville IL
Paul A. Nelson - Wheaton IL
Thomas D. Kaun - Lisle IL
Zygmunt Tomczuk - Palos Hills IL

Assignee:

The United States of America as represented by the United States Energy
Research and Development Administration - Washington DC

International Classification:

H01M 600

US Classification:

296235

Abstract:

Particles of carbonaceous matrices containing embedded electrode active material are prepared for vibratory loading within a porous electrically conductive substrate. In preparing the particles, active materials such as metal chalcogenides, solid alloys of alkali or alkaline earth metals along with other metals and their oxides in powdered or particulate form are blended with a thermosetting resin and particles of a volatile to form a paste mixture. The paste is heated to a temperature at which the volatile transforms into vapor to impart porosity at about the same time as the resin begins to cure into a rigid, solid structure. The solid structure is then comminuted into porous, carbonaceous particles with the embedded active material.

US Patent:

56973071, Dec 16, 1997

Filed:

Dec 4, 1995

Appl. No.:

8/522369

Inventors:

Paul A. Nelson - Wheaton IL
William M. Swift - Downers Grove IL

Assignee:

The University of Chicago - Chicago IL

International Classification:

F23J 1100

US Classification:

110345

Abstract:

A process for treating organic waste materials without venting gaseous emissions to the atmosphere which includes oxidizing the organic waste materials at an elevated temperature not less than about 500. degree. C. with a gas having an oxygen content in the range of from about 20% to about 70% to produce an oxidation product containing CO. sub. 2 gas. The gas is then filtered to remove particulates, and then contacted with an aqueous absorbent solution of alkali metal carbonates or alkanolamines to absorb a portion of the CO. sub. 2 gas from the particulate-free oxidation product. The CO. sub. 2 absorbent is thereafter separated for further processing. A process and system are also disclosed in which the waste materials are contacted with a reactive medium such as lime and product treatment as described.