Michael M. Thackeray
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View article: Unraveling the Structure and Composition of Li<sub>4</sub>Mn<sub>2</sub>O<sub>4.5</sub> (Li<sub>2</sub>O·Li<sub>0.667</sub>Mn<sub>1.333</sub>O<sub>2</sub>) Electrodes for Lithium Batteries Using a High-Temperature Synthesis Approach
Unraveling the Structure and Composition of Li<sub>4</sub>Mn<sub>2</sub>O<sub>4.5</sub> (Li<sub>2</sub>O·Li<sub>0.667</sub>Mn<sub>1.333</sub>O<sub>2</sub>) Electrodes for Lithium Batteries Using a High-Temperature Synthesis Approach Open
This paper addresses the debate about the composition and structure of a lithium-rich manganese oxide electrode with a fully disordered rock salt component, Li 4 Mn 2 O 5 (or Li 2 O·2LiMnO 2 ), first reported by Freire et al. in 2016; it i…
View article: Unraveling the structure and composition of Li4Mn2O4.5 (Li2O•Li0.667Mn1.333O2) electrodes for lithium batteries
Unraveling the structure and composition of Li4Mn2O4.5 (Li2O•Li0.667Mn1.333O2) electrodes for lithium batteries Open
This communication addresses the debate about the composition and structure of a lithium-rich manganese oxide electrode with a fully disordered Li-Mn-O rock salt component that was first reported as Li4Mn2O5 (Li2O•2LiMnO2), by Freire et al…
View article: Layered-spinel electrodes for lithium batteries
Layered-spinel electrodes for lithium batteries Open
An electrode for a lithium-ion cell comprising a ‘layered-spinel’ composite oxide material is disclosed. The ‘layered-spinel’ can be a material of formula xLiMO2.(1−x)LiyM′zO4, wherein 0 < x < 1; LiMO2 is a lithium metal oxide having a lay…
View article: Graphene-coated metal oxide spinel cathodes
Graphene-coated metal oxide spinel cathodes Open
Disclosed herein are graphene-coated lithium manganese oxide spinels cathodes for high-performance batteries Li-ion batteries and methods for making thereof. A single-layer graphene coating is shown to significantly reduce manganese loss i…
View article: Surface treatment for lithium battery electrode materials
Surface treatment for lithium battery electrode materials Open
Electrode materials for electrochemical cells and batteries and methods of producing such materials are disclosed herein. A method of preparing an active lithium metal oxide material suitable for use in an electrode for a lithium electroch…
View article: Cobalt-stabilized lithium metal oxide electrodes for lithium batteries
Cobalt-stabilized lithium metal oxide electrodes for lithium batteries Open
An electrode material comprising a composite lithium metal oxide, which in an initial state has the formula: y[xLi2MO3.(1−x)LiM′O2].(1−y)Li1+dMn2−z−dM″zO4; wherein 0≤x≤1; 0.75≤y<1; 0<z≤2; 0≤d≤0.2; and z−d≤2. M comprises one or more metal i…
View article: LT-LiNi<sub>1/3</sub>Mn<sub>1/3</sub>Co<sub>1/3</sub>O<sub>2</sub>: A Partially-Disordered, Composite Rock Salt Cathode Prepared by Flame Spray Pyrolysis for Li-Ion Batteries
LT-LiNi<sub>1/3</sub>Mn<sub>1/3</sub>Co<sub>1/3</sub>O<sub>2</sub>: A Partially-Disordered, Composite Rock Salt Cathode Prepared by Flame Spray Pyrolysis for Li-Ion Batteries Open
A unique composite cathode structure for Li-ion batteries, designated LT-LiNi 1/3 Mn 1/3 Co 1/3 O 2 (or LT-NMC111), has been prepared by flame spray pyrolysis and subsequent annealing between 400 and 650 °C. It is composed predominantly of…
View article: Lithium battery electrodes
Lithium battery electrodes Open
Electrode materials for electrochemical cells and batteries and methods of producing such materials are disclosed herein. The electrode materials comprise an active lithium metal oxide material prepared by: (a) contacting the lithium metal…
View article: Stabilized electrodes for lithium batteries
Stabilized electrodes for lithium batteries Open
A structurally inhomogeneous lithium metal oxide material having the Formula (I): y[xLi2MO3•(1-x)LiM′O2]•(1-y)Li1+dM″2−dO4; wherein 0≤x≤1; 0<y<1; 0≤d≤0.33; and wherein the Li1+dM″2−dO4 component comprises a spinel structure, and each of th…
View article: Materials for electrochemical device safety
Materials for electrochemical device safety Open
An electrochemical device includes a thermally-triggered intumescent material or a gas-triggered intumescent material. Such devices prevent or minimize short circuits in a device that could lead to thermal run-away. Such devices may includ…
View article: Multi-component intermetallic electrodes for lithium batteries
Multi-component intermetallic electrodes for lithium batteries Open
Multi-component intermetallic negative electrodes prepared by electrochemical deposition for non-aqueous lithium cells and batteries are disclosed. More specifically, the invention relates to composite intermetallic electrodes comprising t…
View article: Modified lithium vanadium oxide electrode materials products and methods
Modified lithium vanadium oxide electrode materials products and methods Open
A method of improving certain vanadium oxide formulations is presented. The method concerns fluorine doping formulations having a nominal formula of LiV.sub.3 O.sub.8. Preferred average formulations are provided wherein the average oxidati…
View article: Anodes for rechargeable lithium batteries
Anodes for rechargeable lithium batteries Open
A negative electrode (12) for a non-aqueous electrochemical cell (10) with an intermetallic host structure containing two or more elements selected from the metal elements and silicon, capable of accommodating lithium within its crystallog…
View article: Silver manganese oxide electrodes for lithium batteries
Silver manganese oxide electrodes for lithium batteries Open
This invention relates to electrodes for non-aqueous lithium cells and batteries with silver manganese oxide positive electrodes, denoted AgxMnOy, in which x and y are such that the manganese ions in the charged or partially charged electr…
View article: Lithium metal oxide electrodes for lithium cells and batteries
Lithium metal oxide electrodes for lithium cells and batteries Open
A lithium metal oxide positive electrode for a non-aqueous lithium cell is disclosed. The cell is prepared in its initial discharged state and has a general formula xLiMO.sub.2.(1-x)Li.sub.2M'O.sub.3 in which 0<x<1, and where M is more tha…
View article: Electrode for a lithium cell
Electrode for a lithium cell Open
This invention relates to a positive electrode for an electrochemical cell or battery, and to an electrochemical cell or battery; the invention relates more specifically to a positive electrode for a non-aqueous lithium cell or battery whe…
View article: Silver manganese vanadium oxide electrodes for lithium batteries
Silver manganese vanadium oxide electrodes for lithium batteries Open
This invention relates to electrodes for non-aqueous lithium cells and batteries. More specifically, the invention relates to silver manganese vanadium oxide positive electrodes for such cells and batteries. The silver manganese vanadium o…
View article: Electrode structures and surfaces for Li batteries
Electrode structures and surfaces for Li batteries Open
This invention relates to methods of preparing positive electrode materials for electrochemical cells and batteries. It relates, in particular, to a method for fabricating lithium-metal-oxide electrode materials for lithium cells and batte…
View article: Autogenic pressure reactions for battery materials manufacture
Autogenic pressure reactions for battery materials manufacture Open
A lithium- or lithium-ion electrochemical cell of the present invention comprises a lithium-containing cathode, an anode, and a non-aqueous lithium-containing electrolyte therebetween; wherein one or more of the anode and the cathode compr…
View article: Surface protected lithium-metal-oxide electrodes
Surface protected lithium-metal-oxide electrodes Open
A lithium-metal-oxide positive electrode having a layered or spinel structure for a non-aqueous lithium electrochemical cell and battery is disclosed comprising electrode particles that are protected at the surface from undesirable effects…
View article: Pseudo-capacitor device for aqueous electrolytes
Pseudo-capacitor device for aqueous electrolytes Open
A pseudo-capacitor having a high energy storage capacity develops a double layer capacitance as well as a Faradaic or battery-like redox reaction, also referred to as pseudo-capacitance. The Faradaic reaction gives rise to a capacitance mu…
View article: Intermetallic electrodes for lithium batteries
Intermetallic electrodes for lithium batteries Open
This invention relates to intermetallic negative electrode compounds for non-aqueous, electrochemical lithium cells and batteries. More specifically, the invention relates to one or more electrode components or compositions, one of which c…
View article: Surface stabilized electrodes for lithium batteries
Surface stabilized electrodes for lithium batteries Open
A method of stabilizing a metal oxide or lithium-metal-oxide electrode comprises contacting a surface of the electrode, prior to cell assembly, with an aqueous or a non-aqueous acid solution having a pH greater than 4 but less than 7 and c…
View article: Manganese oxide composite electrodes for lithium batteries
Manganese oxide composite electrodes for lithium batteries Open
An activated electrode for a non-aqueous electrochemical cell is disclosed with a precursor of a lithium metal oxide with the formula xLi.sub.2MnO.sub.3.(1-x)LiMn.sub.2-yM.sub.yO.sub.4 for 0<x<1 and 0.ltoreq.y<1 in which the Li.sub.2MnO.su…
View article: Intermetallic negative electrodes for non-aqueous lithium cells and batteries
Intermetallic negative electrodes for non-aqueous lithium cells and batteries Open
A method of operating an electrochemical cell is disclosed. The cell has an intermetallic negative electrode of Cu.sub.6-x M.sub.x Sn.sub.5, wherein x is .ltoreq.3 and M is one or more metals including Si and a positive electrode containin…
View article: Lithium metal oxide electrodes for lithium batteries
Lithium metal oxide electrodes for lithium batteries Open
An uncycled preconditioned electrode for a non-aqueous lithium electrochemical cell including a lithium metal oxide having the formula xLi.sub.2-yH.sub.yO.xM'O.sub.2.(1-x)Li.sub.1-zH.sub.zMO.sub.2 in which 0<x<1, 0<y<1 and 0<z<1, M is anon…
View article: Materials as additives for advanced lubrication
Materials as additives for advanced lubrication Open
This invention relates to carbon-based materials as anti-friction and anti-wear additives for advanced lubrication purposes. The materials have various shapes, sizes, and structures and are synthesized by autogenic reactions under extreme …
View article: Protective coating on positive lithium-metal-oxide electrodes for lithium batteries
Protective coating on positive lithium-metal-oxide electrodes for lithium batteries Open
A positive electrode for a non-aqueous lithium cell comprising a LiMn2-xMxO4 spinel structure in which M is one or more metal cations with an atomic number less than 52, such that the average oxidation state of the manganese ions is equal …
View article: Negative electrodes for lithium cells and batteries
Negative electrodes for lithium cells and batteries Open
A negative electrode is disclosed for a non-aqueous electrochemical cell. The electrode has an intermetallic compound as its basic structural unit with the formula M.sub.2 M' in which M and M' are selected from two or more metal elements i…