The Dow Chemical Company

A123 Systems LLC

Dow Global Technolgoies LLC

Ut-battelle, Inc.

Uchicago Argonne, LLC

Aveso, Inc.

Susan J Babinec

Gregory B Less

Greg K Rickle

Bharat Indu Chaudhary

Gilbert N Riley, Jr

Jaime Simon

Carey L Scortichini

Mani Shabrang

Angela Knapp

Ashish Sen

Richard D Varjian

Brian W Walther

H Craig Silvis

Eric P Wasserman

Ray E Drumright

Martin J Guest

Richard K Holman

Deidre A Strand

Robert D Mussell

Richard Allen Lundgard

Kevin E Howard

Daniel Lawrence Dermody

Beth Louise Armstrong

Vojislav Stamenkovic

Thomas H Kalantar

Claus Daniel

Mark T Bernius

Stephen A Noding

Robert A Cipriano

Abhijit Ghosh-Dastidar

Jane Y Howe

Richard T Fox

David L Wood, Iii

Houxiang Tang

Lonnie Curt Maxey

Karen E Thomas-Alyea

Paul E Cranley

Russell P Barry

Adrian Stefan Sabau

Nicole L Wagner

John Bryan Vincent

Peter K Mercure

Ralph B Dinwiddie

Richard A Galley

Edward Andrew Payzant

Mark A Chartier

W Chris McDougall

Robert B Fletcher

Bettina Rosner

Kristine L Danowski

Pietro Papa Lopes

Flor A Castillo

Robert P Haley, Jr

Yu Chen

Douglas A Brune

Todd M Clarey

Stephanie L Hughes

Marianne L McKelvy

Timothy Fister

Michael M Luong

Dave Vieau

Larry S Sun

Douglas P White

Michelle A Pressler

Jahne Simon

Malcolm W Warren, Ii

Diedre A Strand

Christopher M Jones

Mark S B Felix

Ruseell B Peters, Jr

Danny J King

Patrick L Hagans

Mechelle A Blanchard

Nicole S Nembhard

Andrew G Talik

Bettina M Rosner

Mark Newsham

Carlton L Gaupp

Peter Kip Mercure

Malcolm W Warren

Mark Sb Felix

Robert Paul Haley

Chris W Mcdougall

Larry Sun

An electrochemical cell includes a housing, a positive electrode substrate disposed within a first electrode chamber of the housing, a negative electrode substrate disposed within a second electrode chamber of the housing, and a separator may be disposed within the housing between the first electrode chamber and the second electrode chamber. A method further includes pumping a manufacturing electrolyte through the positive electrode portion around the positive electrode substrate. The method further includes applying a first electrical signal to the positive electrode substrate so as to electrochemically fabricate one or both of an active material the negative electrode substrate to form a negative electrode and/or an active material on the positive electrode substrate, thereby forming a positive electrode.

Electrochemical cells and methods of manufacturing thereof

An electrode/separator assembly for use in an electrochemical cell includes a current collector; a porous composite electrode layer adhered to the current collector, said electrode layer comprising at least electroactive particles and a binder; and a porous composite separator layer comprising inorganic particles substantially uniformly distributed in a polymer matrix to form nanopores and having a pore volume fraction of at least 25%, wherein the separator layer is secured to the electrode layer by a solvent weld at the interface between the two layers, said weld comprising a mixture of the binder and the polymer. Methods of making and using the assembly are also described.

Separator for electrochemical cell and method for its manufacture

Porous separators for use in electrochemical cells and methods of their manufacture are provided. The separators are porous structures comprising an electroactive material and an electronically insulating structural material, wherein the electroactive material forms a percolating path in the separator.

Separator including electroactive material for overcharge protection

A system and a method for characterizing a dielectric material are provided. The system and method generally include applying an excitation signal to electrodes on opposing sides of the dielectric material to evaluate a property of the dielectric material. The method can further include measuring the capacitive impedance across the dielectric material, and determining a variation in the capacitive impedance with respect to either or both of a time domain and a frequency domain. The measured property can include pore size and surface imperfections. The method can still further include modifying a processing parameter as the dielectric material is formed in response to the detected variations in the capacitive impedance, which can correspond to a non-uniformity in the dielectric material.

Characterization of dielectric materials

The present invention is directed at a binder for a battery electrode comprising an ethylene oxide-containing copolymer including a first monomer of ethylene oxide (EO) and at least one additional monomer selected from an alkylene-oxide that is different from the first monomer of EO, an alkyl glycidyl ether, or a combination thereof; wherein the ethylene oxide-containing copolymer has a weight average molecular weight less than about 200,000 g/mole (e.g., from about 10,000 to about 100,000), the molar fraction of the first monomer of EO (X) in the ethylene oxide-containing copolymer is greater than 0.80 (e.g., from about 0.80 to about 0.995), and the ethylene oxide-containing copolymer has a peak melting temperature (T), in &#xb0; C., for a selected Xin the range of about 0.80 to about 0.995, which is below a maximum value of T, at the selected X, which is calculated using the equation T=(60&#x2212;150 (1&#x2212;X)).

Ductile polymer binders and battery components using the same

An electrochemical cell, such as Li-Ion, having (a) a positive electrode; (b) a negative electrode, (c) a porous inorganic/organic composite layer interposed between the positive electrode and the negative electrode, and (d) an electrolyte comprising a lithium salt and a non-aqueous solvent. The composite layer includes inorganic nanoparticles and a binder to form a nanocomposite separator (NCS). In addition to the composite layer, the electrochemical cell includes a porous separator.

Batteries having inorganic/organic porous films

Electrodes with a multilayer or monolayer composite separator are described. The multilayer composite separator comprises multiple individual composite separator layers. Each individual composite separator layer comprises inorganic particulate material(s) and organic polymer(s) with different inorganic particulate material/polymer weight ratios. The multilayer composite separator layer is constructed in a way such that the composite separator layer adjacent to the electrode active material contains a higher weight percentage of the inorganic particulate material and lower weight percentage of the organic polymer than the composite separator layer outermost from the electrode current collector. Laminated cells comprising a positive electrode, a negative electrode, a laminated multilayer or monolayer composite separator layer are described, wherein at least one of the electrodes has a multilayer or monolayer composite separator disposed onto the surface of the electrode. Methods of making such laminated cells are also described.

Laminated battery cell comprising multilayer composite separator and methods for creating the same

A device useful for oral drug delivery device consisting of: (a) a capsule, tablet or pill designed to disperse in the gastrointestinal system; (b) an RFID tag positioned in the capsule, tablet or pill, the RFID tag comprising an antenna; (c) an object selected from the group consisting of a magnet, a ferromagnetic object, a ferrite object and an electromagnetic shielding object positioned within, over or adjacent the antenna of the RFID tag to alter the antenna characteristics of the RFID tag so that if the RFID tag is interrogated before the capsule, tablet or pill disperses in the gastrointestinal system, the response of the RFID tag is sufficiently altered or attenuated to determine that the capsule, tablet or pill has not dispersed in the gastrointestinal system and so that if the RFID tag is interrogated after the capsule, tablet or pill has dispersed in the gastrointestinal system, the object separates from the RFID tag so that the response of the RFID tag is sufficiently detectable to determine that the capsule, tablet or pill has dispersed in the gastrointestinal system. Alternatively, a switch can be used to signal ingestion of the device, and change the response of the device.

Oral drug compliance monitoring using radio frequency identification tags

Disclosed is an electrically conductive thermoplastic polymer composition comprising a thermoplastic polymer and a synergistic combination of metal fibers and metal-coated fibers, structures made therefrom, and a process to make said compositions and structures.

Electrically conductive thermoplastic polymer composition

The present invention relates to a composition and to a display device having the composition positioned between electrodes. The composition contains: (a) a compound that undergoes a reversible redox reaction to generate a pH gradient between the two electrodes, (b) an indicator dye, (c) a charge transport material, and optionally, (d) a matrix material and (e) an opacifier, and (f) secondary redox couple wherein components (a), (b), and (c) are different from one another and the standard reduction potential of component (a) is less than the standard reduction potential for the other components. Depending on the electric field present between the electrodes, a display image may be generated.

Electrochromic display device and compositions useful in making such devices

COMPOSITIONS OF INTERPOLYMERS OF &agr;-OLEFIN MONOMERS WITH ONE OR MORE VINYL OR VINYLIDENE AROMATIC MONOMERS AND/OR ONE OR MORE HINDERED ALIPHATIC OR CYCLOALIPHATIC VINYL OR VINYLIDENE MONOMERS BLENDED WITH A CONDUCTIVE ADDITIVE

An electrochemical fuel cell having a membrane electrode assembly and a flow field adjacent thereto wherein the flow field comprises an electrically conductive porous material having a porosity of at least about 50 percent and a mean pore size of at least about 35 microns. This fuel cell is able to operate at relatively high current densities and relatively high voltages at reduced gas flow rates.

Macroporous flow field assembly

A doped intrinsically-conductive polymer having a conductivity of at least about 10,Siemens/cm (S/cm); which is doped with at least two different dopants, including a &ldquo;short-chain dopant&rdquo; having a molecular weight of less than 1,000 and a &ldquo;long-chain dopant&rdquo; which is polymeric and has a weight average molecular weight of greater than 2,000.

Electronically-conductive polymers

Growing community of inventors

Midland, MI, United States of America

Susan J Babinec