Seeo, Inc.

Robert Boschgmbh

University of California

Hany Basam Eitouni

Kulandaivelu Sivanandan

Russell Clayton Pratt

Mohit Singh

Jin Yang

Jonathan C Pistorino

Malar Azagarsamy

Xiao-Liang Wang

Boris Kozinsky

Jonathan Mailoa

Georgy Samsonidze

Nitash Balsara

Scott Allen Mullin

Bing R Hsieh

Steven Michael Lam

Yan Li

Ilan Gur

John F Christensen

Mordechai C Kornbluth

Sondra L Hellstrom

Karim Gadelrab

Katherine Harry

Natasha Teran

Vishal Vijay

Enrique Daniel Gomez

Tristan Palmer

Michel Bernard Armand

Nathan P Craig

Lei Cheng

Jeffrey R Long

Saravanan Kuppan

Michael Metzger

William Hudson

Jean Fanous

Abdul-Kader Srouji

Xiaoliang Wang

Heng Zhang

Yiqing Huang

Albert Aumentado

Ashoutosh Panday

Jose Castellanos

Lide Rodriguez

Mario Joost

David Abram

Michael Aubrey

Jordan Axelson

Nicola Molinari

Jonathan P Mailoa

Nitash Pervez Balsara

A copolymer for constituting a polymer electrolyte for a solid-electrolyte lithium or sodium cell. A polymer electrolyte that is usable in combination with high-voltage cathode active materials and makes it possible to provide solid-electrolyte lithium or sodium cells and/or batteries having a high energy density that is sufficient even for use in electricity-based vehicles, the copolymer encompasses at least two ion-conductive polymers, the copolymer encompassing at least one polymer polymerized by ring-opening polymerization of at least one lactone and/or of at least one lactide and/or of at least one cyclic carbonate and/or of at least one cyclic carbamate and/or of at least one lactam and/or of at least one epoxide, and/or at least one polymer polymerized by radical polymerization of acrylonitrile and/or of at least one acrylonitrile derivative; and encompasses at least one polyacrylate having at least one repeating unit.

High-voltage stable copolymer for constituting a polymer electrolyte for a lithium or sodium cell

New polymer compositions based on poly(2,6-dimethyl-1,4-phenylene oxide) and other high-softening-temperature polymers are disclosed. These materials have a microphase domain structure that has an ionically-conductive phase and a phase with good mechanical strength and a high softening temperature. In some arrangements, the structural block has a softening temperature of about 210&#xb0; C. These materials can be made with either homopolymers or with block copolymers. When these polymers are combined with electrolyte salts, they can be used as electrolytes that have both high ionic conductivity and good mechanical properties.

Polymer compositions based on PXE

A method of forming a metal oxy-fluoride surface on lithium metal oxide cathode material particles is disclosed. Such a metal oxy-fluoride surface may help to prevent lithium metal oxide cathode active materials from reacting with water, thus enabling aqueous processing of cathodes made from such materials in the manufacture of lithium batteries. Such a method may also reduce lithium battery manufacturing costs and time by substituting water for currently-used organic solvents that are expensive and require special handling and disposal. Such a method may also reduce the cost of lithium metal oxide cathode active materials as the requirements for moisture-free manufacture, storage, and processing will be reduced or eliminated.

High-energy cathode material particles with oxy-fluoride surfaces for aqueous processing

Lithium battery electrolyte materials comprising fluorinated phosphonates and having a polymer structure defined by: where Ris &#x2014;CF, &#x2014;(CF)CFand n is an integer ranging from 1 to 10, perfluoropolyether (PFPE), polyvinylidene fluoride (PVDF), polytetrafluoroethylene (PTFE), fluorinated ethylene propylene (FEP), ethylene fluorinated ethylene propylene (EFEP), or polyethylene tetrafluoroethylene (ETFE) and Ris &#x2014;(CF)and n is an integer ranging from 1 to 10, perfluoropolyether (PFPE), polyvinylidene fluoride (PVDF), polytetrafluoroethylene (PTFE), fluorinated ethylene propylene (FEP), ethylene fluorinated ethylene propylene (EFEP), or polyethylene tetrafluoroethylene (ETFE).

Polymer electrolyte material for lithium battery cells

Fluorinated ionic liquids have been prepared to be used as catholytes in lithium battery cells. Such ionic liquids are immiscible with polyethylene-oxide-based solid polymer electrolytes, which may be used as separators in such cells. Such catholytes can increase the lifetime and boost the performance of lithium battery cells.

Fluorinated ionic liquids for multi-layer Li ion battery applications

Polymer-based electrolyte materials that may be used as proton exchange membranes in proton exchange membrane fuel cells are described. The disclosed polymer electrolyte materials can be generally defined by a general 1,3-dicarbonyl repeat unit that may include various side chain and main chain constituents changing the acidity of the C&#x2014;H proton(s) located between the carbonyl groups. Accordingly, by varying such side-chain and main-chain constituents, the proton-conduction properties the disclosed proton exchange membranes can be manipulated, and methods of producing the same. Methods of producing such polymer electrolyte materials are also disclosed.

Polymer-based electrolyte materials for proton exchange membrane fuel cells

New sulfur-based polyesters have been synthesized. When these polymers are combined with electrolyte salts, such polymer electrolytes have shown excellent electrochemical oxidation stability in lithium battery cells. Their stability along with their excellent ionic transport properties make them especially suitable as electrolytes in high energy density lithium battery cells.

Sulfur-based polyester electrolytes for high voltage lithium ion batteries

New phosphorous-based polyesters have been synthesized. When these polymers are combined with electrolyte salts, such polymer electrolytes have shown excellent electrochemical oxidation stability in lithium battery cells. Their stability along with their excellent ionic transport properties make them especially suitable as electrolytes in high energy density lithium battery cells.

Phosphorous-based polyester electrolytes for high voltage lithium ion batteries

In this disclosure, we describe a new chemical treatment that can be performed on lithium metal and lithium alloy surfaces to selectively remove LiH defects. This treatment utilizes an exclusive reaction between LiH and trialkyl borane to form lithium borohydride complexes, which can be easily washed away from surface using an inert organic solvent. This treatment can be useful for lithium metal and lithium alloy anodes for high energy batteries.

Method for removing lithium hydride faceted defects from lithium metal foil

New polymers with that have polyesters grafted onto polynorbornene backbones have been synthesized. When these grafted polymers are combined with electrolyte salts, such polymer electrolytes have shown excellent electrochemical oxidation stability in lithium battery cells. Their stability along with their excellent ionic transport properties make these grafted polyesters especially suitable as electrolytes in high energy density lithium battery cells.

Grafted polyesters as electrolytes for lithium ion batteries

A solid state battery cathode material includes a first polymer of the general formula where R is naught, C-Calkyl, C-Cperfluoroalkyl, or C-Calkanone; X is naught, O, S, or NR; and R, Rare H, C-Calkyl, C-Ccycloalkyl, C-Cperfluoroalkyl, aryl, phenyl, or 1,2-phenylene.

Solid state battery cathode material

New homopolymers and copolymers of diester-based polymers have been synthesized. When these polymers are combined with electrolyte salts, such polymer electrolytes have shown excellent electrochemical oxidation stability in lithium battery cells. Their stability along with their excellent ionic conductivities make them especially suitable as electrolytes in high energy density lithium battery cells.

Diester-based polymer electrolytes for high voltage lithium ion batteries

New acrylate-based polymers with dicarbonyl pendant groups have been synthesized. When these polymers are combined with electrolyte salts, such polymer electrolytes have shown excellent electrochemical oxidation stability in lithium battery cells. Their stability along with their excellent ionic transport properties make them especially suitable as electrolytes in high energy density lithium battery cells.

Acrylate polymers with dicarbonyl pendant groups as electrolytes for lithium ion batteries

New poly(anhydride)-based polymers have been synthesized. When these polymers are combined with electrolyte salts, such polymer electrolytes have shown excellent electrochemical oxidation stability in lithium battery cells. Their stability along with their excellent ionic transport properties make them especially suitable as electrolytes in high energy density lithium battery cells.

Poly(anhydride)-based polymer electrolytes for high voltage lithium ion batteries

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Oakland, CA, United States of America

Hany Basam Eitouni