Toyota Motor Engineering & Manufacturing North America, Inc.

Toyota Motor Corporation

Case Western Reserve University

Georgia Tech Research Corporation

Synthonix Corporation

Toyota Jidosha Kabushiki Kaisha

University of California

Toyota Technical Center, U.s.a., Inc.

Sandia Corporation, Operator of Sandia National Laboratories

John Muldoon

Claudiu Bogdan Bucur

Wen Li

Patrick J Bonnick

Masaki Matsui

Hee Soo Kim

Timothy Sean Arthur

Peter N Pintauro

Monique Nathalie Richard

Ryszard J Wycisk

Naoki Osada

Meilin Liu

Gary Allred

Kimber Lee Stamm

Koji Suto

Jun Lin

Kohei Hase

Xiaobing Zhu

Mike Jones

Adrian Lita

Emilyne E Nicolas

Anthony Dotse

Erika Nagai

Min Kyu Song

Keita Niitani

James E Miller

Fred Wudl

Nikhilendra Singh

John A Shelnutt

Tetsuo Nagami

Ruigang Zhang

Craig J Medforth

Bruce S Dunn

Yujiang Song

Hiroaki Takahashi

Tetsuo Kawamura

Michael A Hickner

Mikhail Y Redko

Michael Jones

Tsuyoshi Sugimoto

Kimber L Stamm Masias

Scott Michael Ankeney

Hiroshi Hamaguchi

Wei Song

Akira Tsujiko

Kurt Star

Kohai Hase

Ryuta Sugiura

Toshiya Saito

Filippo Marchioni

Provided is a composition containing a redox charge-transfer complex of an electron donor polymer and an electron acceptor compound where the anionic form of the electron acceptor has a reduction potential higher than the reduction potential of the electron donor polymer; at least one metal salt and at least one additive compound having a dielectric constant of 10 or greater. The composition is a free-flowing, substantially amorphous powder and is useful as a metal ion conducting component of electrolytic cells.

Polymer electrolyte for a solid state battery

A lithium metal electrode having an artificial interphase layer is provided. The artificial interphase layer conducts lithium ions but is nonconductive of electrons. A method to prepare the lithium metal electrode is also provided. A solid state electrochemical cell containing the lithium metal electrode is provided. A solid state lithium-sulfur electrochemical cell is provided which has a sustained discharge capacity of about 3 mAh/cm.

Interphase between lithium metal and solid electrolyte

An electrode for a solid-state lithium battery is provided. The electrode has a current collector and an electrode active layer of lithium metal or lithium metal alloy on the current collector. A surface layer of a homogeneous nano-alloy particle composition containing nanoparticles of an element M or nanoparticles of a lithium alloy of an element M, wherein M is at least one element selected from elements of Groups 2 and 8-16 is present on the active layer. Solid-state batteries containing the electrode are provided.

Nano-alloy interphase for lithium metal solid state batteries

A microwave induced solvothermal method to prepare lithium thiophosphate composites including &#x3b1;-LiPSand crystalline LiPSis provided. The method is scaleable to commercial size production.

Microwave synthesis of lithium thiophosphate composite materials

A particle having a core of elemental chalcogen elements, such as sulfur, selenium and tellurium, and a coating of at least one polymeric layer on the core. A functionalized conductive carbon material is dispersed in the core. A cathode containing the particles and a battery constructed with the cathode are also provided.

Functionalization of carbon for embedding in chalcogen particles to enhance electronic conductivity

A low resistance multivalent metal anode is provided. The metal is present in the anode as a Riecke highly active particle. Anode resistivity of 1000 &#x3a9;&#xb7;cmor lower can be obtained. Metals employed include magnesium, calcium, zinc and aluminum. Electrochemical cells containing the low resistance multivalent metal anodes are also provided.

Low resistance, multivalent metal anodes

A lithium sulfide (LiS)-lithium phosphorus sulfide (LiPS) composite, electrochemical cells comprising the same, and methods for making the same are described herein. By the mechanochemical method described herein, the LiS&#x2014;LiPScomposite can be formed and used as the active material in a positive electrode for a variety of electrochemical cells. It is shown herein that the composite is an electrochemically active cathode material. Further, it has been shown that the LiS&#x2014;LiPScomposite shows increased resistance to decomposition and HS generation than LiS.

Air stable lithium sulfide cathode compositions, methods for producing them, and solid-state lithium batteries incorporating the same

An electrode for a lithium battery constructed of a metal foil current collector, a coating of a pH sensitive polyelectrolyte polymer directly on the metal foil current collector; and a polyelectrolyte polymer nanomembrane comprising alternating layers of oppositely charged polyelectrolyte polymer wherein each succeeding polyelectrolyte layer has excess charge over the previous layer is provided. The pH sensitive polymer may be poly(allylamine hydrochloride) (PAH), poly(dimethyldiallyl ammonium chloride) (PDAD), poly(vinyl pyridine) (PPy), polyethyleneimine (PEI), polyacrylic acid (PAA), polymethacrylic acid (PMA) or poly(styrene sulfonic acid-maleic acid, sodium salt) (PSSM3:1).

Lithium deposition with multilayer nanomebrane

A high voltage rechargeable magnesium cell includes an anode and cathode housing. A magnesium metal anode is positioned within the housing. A high voltage electrolyte is positioned proximate the anode. A metal oxide cathode is positioned proximate the high voltage electrolyte. The magnesium cell includes a multi-cycle charge voltage up to at least 3.0 volts and includes a reversible discharge capacity.

High voltage rechargeable magnesium cell

A core-shell composite sulfur particle containing a core of elemental sulfur having homogeneously dispersed particles of a conductive carbon and a polyelectrolyte polymer; and a shell containing a hybrid membrane coating of branched polyethyleneimine (bPEI) on the core and at least one sequential set of a negatively charged clay nanosheet and a further coating of bPEI encapsulating the core is provided. In the sulfur particle the dispersed particles of conductive carbon are associated with the polyelectrolyte polymer. A cathode having an active material containing the core-shell composite sulfur particle and a sulfur loading of 1.0 mg S/cmto 10 mg/cmand a battery containing the cathode are also provided.

Sulfur particles coated with inorganic-organic hybrid membranes as cathode active material and batteries containing the particles

A high density slurry comprising encapsulated sulfur particles, carbon nanofibers and activated carbon black suitable for use in forming the active material of an electrode. A method for forming the high density sulfur slurry is also provided. A cathode containing the particles and a battery constructed with the cathode as well as methods for their formation are also provided.

Formation of slurry for high loading sulfur cathodes

A sulfur particle containing a core of elemental sulfur having homogeneously dispersed particles of a conductive carbon and branched polyethyleneimine; and a coating of branched polyethyleneimine (bPEI) encapsulating the core is provided. In the sulfur particle the dispersed particles of conductive carbon are associated with the bPEI. A cathode having an active material containing the sulfur particles and a sulfur loading of 1.0 mg S/cmto 10 mg/cmand a battery containing the cathode are also provided.

In situ formation of sulfur particles using organic acids in the presence of polymer functionalized carbon

A one-step method to prepare a magnesium electrolyte salt is provided. According to the method, the magnesium electrolyte is obtained by reacting a Grignard reagent and a fluorinated aryl borane. In addition, formation of monomeric or dimeric magnesium ion is determined by the choice of the Grignard reagent. The magnesium electrolyte may be non-chlorinated and non-corrosive. A magnesium battery containing the magnesium electrolyte is also provided.

One step synthesis of non-chlorinated magnesium electrolytes

A method to prepare a chloride free magnesium electrolyte salt is provided. According to the method a water stable borate or carborate anion is converted to metal salt of an alkali metal or silver by an ion exchange and then converted to a chloride free magnesium salt by another ion exchange. A chloride free magnesium salt suitable as an electrolyte for a magnesium battery and a magnesium battery containing the chloride free magnesium electrolyte are also provided.

Chloride-free electrolyte for a magnesium battery and a method to convert a magnesium electrolyte to a chloride-free electrolyte

A hybrid particle having a core of a hybrid composite comprising at least two elements selected from the group consisting of sulfur, selenium and tellurium and a coating of at least one self-assembling polymeric layer encapsulating the core is provided. A method for preparing the hybrid particle includes mixing an aqueous solution of a polymer with an aqueous solution of a soluble precursor of at least two elements selected from the group consisting of sulfur, selenium and tellurium to form a mixture and adding an acid to the mixture to obtain the hybrid particle. A cathode having an active material of the hybrid particles and a battery containing the cathode are also provided.

Hybrid sulfur particles and cathode active materials containing the hybrid particles

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Saline, MI, United States of America

John Muldoon