3m Innovative Properties Company

Johnson Matthey Public Limited Company

Mark N Obrovac

Jeffrey R Dahn

Leif Christensen

Dinh B Le

James R Landucci

Xiaohua Ma

Jing Li

Pierre P Ferguson

Phat Tan Pham

Larry J Krause

Vincent J L Chevrier

Timothy D Hatchard

Leyi Zhao

Richard Mar

Michael D Fleischauer

Xiuyun Zhao

Marc Flodquist

Douglas S Iaboni

Robert Y Kube

An electrochemically active material includes an active phase that includes silicon, and at least one inactive phase having a Scherrer Grain Size of greater than 5 nanometers. Each inactive phase of the material having a Scherrer Grain Size of greater than 5 nanometers has a lattice mismatch to LiSiof greater than 5%.

Anode materials for lithium batteries and methods of making and using same

An electrochemically active material includes silicon and a transition metal. At least 50 mole % of the transition metal is present in its elemental state, based on the total number of moles of transition metal elements present in the electrochemically active material. An electrochemically active material includes silicon and carbon. At least 50 mole % of the carbon is present in its elemental state, based on the total number of moles of carbon present in the electrochemically active material.

Silicon based materials for and methods of making and using same

Anode materials for lithium ion batteries and methods of making and using same

An anode composition includes an electrochemically active material comprising silicon; and a cement.

Anode compositions for rechargeable batteries and methods of making same

A cathode composition for a sodium-ion battery. The cathode composition may have the formula NaCrMO, where M is one or more metal elements, and x is greater than 0 and less than or equal to 0.5.

Cathode compositions for sodium-ion batteries and methods of making same

Composite particles that include an electrochemically active metal phase, an insulating phase, and a conducting phase are provided that are useful active materials in negative electrodes for lithium-ion electrochemical cells. The electrochemically active phase includes silicon. Lithium-ion electrochemical cells are provided that include the provided composite composite particles as active materials in negative electrodes as well as methods of making the provided composite particles.

Composite negative electrode materials

Powder milling techniques, tin-based alloys formed thereby, and the use of such alloys as electrode compositions for lithium ion batteries are provided. The alloys include tin and at least one transition metal but contain no silicon. The powder milling is done using low energy roller milling (pebble milling).

Method of making tin-based alloys for negative electrode compositions

Provided are negative electrode compositions for lithium-ion electrochemical cells that include metal oxides and polymeric binders. Also provided are electrochemical cells and battery packs that include electrodes made with these compositions.

Metal oxide negative electrodes for lithium-ion electrochemical cells and batteries

Provided are electrode compositions for lithium-ion electrochemical cells that include novel binders. The novel binders include lithium polysalts of carboxylic and sulfonic acids, lithium salts of copolymers of acids, lithium polysulfonate fluoropolymers, a cured phenolic resin, cured glucose, and combinations thereof.

Electrodes including novel binders and methods of making and using the same

A method of making nanostructured alloy particles includes milling a millbase in a pebble mill containing milling media. The millbase comprises: (i) silicon, and (ii) at least one of carbon or a transition metal, and wherein the nanostructured alloy particles are substantially free of crystalline domains greater than 50 nanometers in size. A method of making a negative electrode composition for a lithium ion battery including the nanostructured alloy particles is also disclosed.

Low energy milling method, low crystallinity alloy, and negative electrode composition

An electrode composition for a lithium ion battery that includes an amorphous alloy having the formula SiMAlwhere x, y, and z represent atomic percent values and (a) x+y+z=100, (b) x&#x2267;55, (c) y&#x3c;22, (d) z&#x3e;0, and (e) M is one or more metals selected from the group consisting of manganese, molybdenum, niobium, tungsten, tantalum, iron, copper, titanium, vanadium, chromium, nickel, cobalt, zirconium, yttrium, and combinations thereof.

Electrode compositions based on an amorphous alloy having a high silicon content

Alloy compositions, lithium ion batteries, and methods of making lithium ion batteries are described. The lithium ion batteries have anodes that contain an alloy composition that includes a) silicon, b) aluminum, c) transition metal, d) tin, e) indium, and f) a sixth element that contains yttrium, a lanthanide element, an actinide element, or a combination thereof. The alloy composition is a mixture of an amorphous phase that includes silicon and a crystalline phase that includes an intermetallic compound of 1) tin, 2) indium, and 3) the sixth element.

Alloy composition for lithium ion batteries

Alloy compositions, lithium ion batteries, and methods of making lithium ion batteries are described. The lithium ion batteries have anodes that contain an alloy composition that includes a) silicon, b) aluminum, c) transition metal, d) tin, and e) a fifth element that contains yttrium, a lanthanide element, an actinide element, or a combination thereof. The alloy composition is a mixture of an amorphous phase that includes silicon and a nanocrystalline phase that includes an intermetallic compound of tin and the fifth element.

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Saint Paul, MN, United States of America

Mark N Obrovac