Ilika Technologies Limited

University of Southampton

Samuel Guerin

Brian Elliott Hayden

Laura Mary Perkins

Louise Turner

Thomas Risbridger

Brian Elliot Hayden

Owain Clark

Kyriakos Giagloglou

David Michael Laughman

Gianfranco Aresta

William Richardson

Alexandros Anastasopoulos

Robert Noble

Patrick Casey

Jean-Philippe Soulié

Duncan Smith

David Laughman

Provided is a composition comprising: (a)a principal phase that is provided by a layered mixed metal oxide having a rocksalt structure belonging to the R-3m space group; the layered mixed metal oxide comprising the following component elements: 45 to 55 atomic % lithium; 20 to 55 atomic % of one or more transition metals selected from the group consisting of chromium, manganese, iron, nickel, cobalt, and combinations thereof; and 0 to 25 atomic % of one or more additional dopant elements selected from the group consisting of: magnesium, calcium, strontium, titanium, zirconium, vanadium, copper, ruthenium, zinc, molybdenum, boron, aluminium, gallium, tin, lead, bismuth, lanthanum, cerium, gadolinium and europium; wherein said atomic % is expressed as a % of total atoms of said layered oxide, excluding oxygen; (b)a minor phase that is provided by a metal oxide that does not have the crystal structure of the layered mixed metal oxide, the minor phase comprising one or more of the transition metals contained in the layered mixed metal oxide, the transition metals being selected from the group consisting of chromium, manganese, iron, nickel, and cobalt. Methods of making the composition and electrodes and cells, especially solid-state batteries, containing the composition are also provided. The rough morphology of the crystals confers advantages compared with smoother crystals of similar chemical composition, particularly in solid-state batteries.

Composition, methods for its production, and its use

The present invention provides a vapour deposition method for preparing an amorphous lithium borosilicate compound or doped lithium borosilicate compound, the method comprising: providing a vapour source of each component element of the compound, wherein the vapour sources comprise at least a source of lithium, a source of oxygen, a source of boron and a source of silicon, and, optionally, a source of at least one dopant element; providing a substrate at a temperature of less than about 180° C.; delivering a flow of said lithium, said oxygen, said boron and said silicon, and, optionally, said dopant element, wherein the rate of flow of said oxygen is at least about 8×10m/s; and co-depositing the component elements from the vapour sources onto the substrate wherein the component elements react on the substrate to form the amorphous compound.

Vapor deposition method for preparing an amorphous lithium borosilicate

In a vapor deposition method which can be used to deposit mixtures of materials in progressively varying amounts on a substrate () and which can be used for a variety of purposes, but is of especial value in combinatorial chemistry, the path of the vaporized material from the source () to the substrate () is partially interrupted by a mask (), the positioning of the mask in a plane parallel to the plane defined by the substrate () being such that the material is deposited on the substrate () in a thickness which increases substantially continuously in a direction along the substrate ().

Vapour deposition method

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Southampton, United Kingdom

Samuel Guerin