Toyota Motor Engineering & Manufacturing North America, Inc.

Toyota Jidosha Kabushiki Kaisha

Samsung Electronics Co., Ltd.

Shizuoka University

Toyota Motor Corporation

Centre National De La Recherche Scientifique

University De Montreal

Synthonix Corporation

Masaki Matsui

Nikhilendra Singh

John Muldoon

Timothy Sean Arthur

Yuichi Aihara

Wen Li

Takanobu Yamada

Yutaka Oyama

Hisashi Yamamoto

Tatsuo Fujinami

Nobuyuki Imanishi

Hee Soo Kim

Wei Song

Yasuaki Matsuda

Chen Ling

Fuminori Mizuno

Teruo Umemoto

Rana Mohtadi

Hiroki Awano

Ruigang Zhang

Toshihiko Tani

Claudiu Bogdan Bucur

Takahiro Aoki

Motoshi Isono

Gary Allred

Gerald Perron

Tsuyoshi Sugimoto

Scott Michael Ankeney

Anthony Dotse

Junzo Ukai

Ruoyuan Tao

Hiroaki Awano

Michael B Armand

A method of forming a polyanion active material that includes providing a carbon source, providing a mobile ion source, providing an active metal material, providing a network material, providing a flux material, and mixing the various materials. In one aspect, the mixing step may include grinding or pulverizing materials to a uniform fine mixture. In one aspect, a ball mill may be utilized to mix the components. Following the mixing of the materials, the mixture is heated to a predetermined temperature in a non-oxidizing atmosphere to form a reaction product. In one aspect, the mixture is heated to a temperature above a melting temperature of the flux material. In this manner, the flux material provides a medium in which the various reactants may react to form the desired reaction product. Following the heating of the mixture the reaction product is washed, forming a carbon coated polyanion active material. Also disclosed is a polyanion active material that includes the in situ reaction product of a carbon source, mobile ion source, active metal material, network material, and a flux material wherein the polyanion active material includes a carbon coating formed thereon.

Polyanion active materials and method of forming the same

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 magnesium-ion battery includes a first electrode including an active material and a second electrode. An electrolyte is disposed between the first electrode and the second electrode. The electrolyte includes a magnesium compound. The active material includes tin.

Active material for rechargeable battery

A positive electrode for a lithium ion secondary battery, the positive electrode including: a coated particle including a positive active material particle and a reactive layer on the surface of the positive active material particle; and a sulfide-containing solid electrolyte particle which is in contact with the coated particle, wherein the reactive layer includes a reactive element other than lithium and oxygen, wherein the reactive element has a reactivity with the sulfide-containing solid electrolyte particle which is greater than with a reactivity of the reactive element with a transition metal element included in the positive active material particle, and wherein a ratio of a thickness of the reactive layer to a particle diameter of the positive active material particle is in a range of about 0.0010 to about 0.25.

Positive electrode for lithium ion secondary battery and lithium ion secondary battery including the same

The electrolyte includes a magnesium salt having the formula Mg(BX)where X is selected from H, F and O-alkyl. The electrolyte also includes a solvent, the magnesium salt being dissolved in the solvent. Various solvents including aprotic solvents and molten salts such as ionic liquids may be utilized.

Magnesium borohydride and its derivatives as magnesium ion transfer media

A magnesium ion battery includes a first electrode including a substrate and an active material deposited on the substrate. Also provided is a second electrode. An electrolyte is located between the first electrode and the second electrode. The electrolyte includes a magnesium compound. The active material includes indium and an intermetallic compound of magnesium and indium.

Active material for rechargeable magnesium ion battery

An electrochemical device, such as a magnesium-ion battery, comprises a first electrode including a first active material, a second electrode, and an electrolyte located between the first electrode and the second electrode. The electrolyte may include a magnesium compound, such as a magnesium salt. In representative examples, an improved active material includes a group 15 chalcogenide, in particular a bismuth chalcogenide, such as bismuth oxide or other chalcogenide. In various examples, the improved active material may be used in a positive or negative electrode of an example battery.

Magnesium-based battery

A magnesium battery includes a first electrode including an active material and a second electrode. An electrolyte is disposed between the first electrode and the second electrode. The electrolyte includes a magnesium compound. The active material includes an inter-metallic compound of magnesium and bismuth.

A main object is to provide an asymmetric type BFcomplex which is useful as a solvent for a liquid electrolyte for electrochemical device, in which the liquid electrolyte has a wide potential window and is particularly excellent in oxidation resistance. To attain the object, an asymmetric type BFcomplex is represented by the following general formula (1): (in the general formula (1), each of Rand Ris an alkyl group having 1 to 6 carbon atoms and may be the same or different, and Rand Rmay be branched or may form a ring).

[object Object]

A magnesium battery includes a first electrode including an active material and a second electrode. An electrolyte is disposed between the first electrode and the second electrode. The electrolyte includes a magnesium compound. The active material includes an inter-metallic compound of magnesium and antimony. The active material also includes antimony or an alloy of bismuth and antimony.

A rechargeable magnesium-ion battery includes a first electrode, a second electrode, and an electrolyte layer between the first electrode and the second electrode. The electrolyte includes a source of magnesium ions, such as a magnesium salt. The first electrode includes an active material, the active material including indium and tin, for example as a solid solution or intermetallic compound of indium and tin.

Indium-tin binary anodes for rechargeable magnesium-ion batteries

A rechargeable magnesium-ion battery includes a first electrode, a second electrode, and an electrolyte layer between the first electrode and the second electrode. The electrolyte includes a source of magnesium ions, such as a magnesium salt. The first electrode includes an active material, the active material including tin and bismuth, for example as a binary combination of Sn and Bi, such as a solid solution or intermetallic compound.

Bismuth-tin binary anodes for rechargeable magnesium-ion batteries

To provide a method for manufacturing a lithium secondary battery, characterized by having: a processing lithium secondary battery preparing step for preparing a processing lithium secondary battery that has a positive electrode layer containing LiFePOas a positive-electrode active material, a negative electrode layer containing a carbon material as a negative-electrode active material, and nonaqueous electrolyte solution containing LiPFand LiBOB; and a film forming step of performing a charging process on the processing lithium secondary battery until a voltage of the processing lithium secondary battery falls within a high voltage range in which a film of an oxidative decomposition product of a BOB anion contained in the LiBOB is formed on a surface of the positive-electrode active material.

Method for manufacturing lithium secondary battery, lithium secondary battery, and lithium secondary battery system

An electrochemical device, having an anode containing magnesium; a cathode stable to a voltage of at least 3.2 V relative to a magnesium reference; and an electrolyte containing a solvent and a LiCl complex of a magnesium halide salt of a sterically hindered secondary amine is provided. In a preferred embodiment the electrolyte contains tetrahydrofuran and 2,2,6,6-tetramethylpiperidinyl-magnesium chloride-lithium chloride complex.

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Ann Arbor, MI, United States of America

Masaki Matsui