Uchicago Argonne, LLC

Trevor L Dzwiniel

Krzysztof Pupek

Gregory K Krumdick

Chen Liao

Anthony Keiran Burrell

Vojislav Stamenkovic

Rongyue Wang

Baofei Pan

Sang-Don Han

Kewel Liu

Joseph A Libera

Nenad Markovic

Yujia Liang

Stephen Cotty

A method for synthesis of platinum nanoparticles by continuous flow using large flow segments. The nanoparticles are monodispersed and can undergo acid leaching to form platinum catalyst, such as PtNi or PtCo catalyst material.

Systems and methods for platinum nanocatalyst synthesis via continuous flow reactor

Described herein are borate salts useful as additives, binders, and electrolyte salts for solid state lithium ion batteries. In particular, the borate salts of Formula (I), Formula (II) and Formula (III) as described herein: can be bound to an existing polymer to provide polymeric binders for ceramic solid state electrolytes that are themselves capable of ion transport independent of the ceramic.

Borate salts, polymers and composites

A process for forming cubic LLZO through the use of atomic mixing of metal salts used in an aerosol process. The cubic LLZO is formed at temperatures below 1000° C.

Method of tuning the conversion temperature of cubic phase of aluminum-doped lithium lanthanum zirconium oxide

In one embodiment, a continuous process for preparing organic carbonate solvent of Formula (I) as described herein comprises contacting a first reactant (an alcohol) with a reactive carbonyl source (carbonyldiimidazole (CDI) or an alkylchloroformate) in the presence of a catalyst in reaction stream flowing through a continuous flow reactor at temperature 20&#xb0; C. to about 160&#xb0; C. and at a flow rate providing a residence time in the range of about 0.1 minute to about 24 hours; collecting a reactor effluent exiting from the continuous flow reactor; recovering a crude product from the reactor effluent; and distilling the crude product to obtain the organic carbonate compound of Formula (I). In another embodiment, the first reactant is an epoxide and the carbonyl source is carbon dioxide.

Continuous method for preparing carbonate esters

Described herein are borate salts useful as additives, binders, and electrolyte salts for solid state lithium ion batteries. In particular, the borate salts of Formula (I), Formula (II) and Formula (III) as described herein: can be polymerized, or can be bound to an existing polymer, to provide polymeric binders for ceramic solid state electrolytes that are themselves capable of ion transport independent of the ceramic.

Methods for preparing electrolyte salts for alkaline earth metal-ion batteries (e.g., calcium and magnesium ion batteries) are described. The electrolyte salts comprise alkaline earth metal (e.g., Mg or Ca) salts of 3,4-dicyano-2-trifluoromethylimidazole (TDI). The methods comprise contacting TDI with an alkaline earth metal bis(trifluoroacetate) salt in trifluoroacetic acid.

Salts for multivalent ion batteries

A method for synthesis of PtNi nanocages by synthesizing Pt1Ni6 nanoparticles and acid leaching to form PtNi nanocages. The acid leaching removes nickel selectively from the core of the nanoparticle.

Systems and methods for PTNI nanocages

A solvent useful for lithium batteries comprises a compound of Formula (I): (R)(R)(R)Si&#x2014;R&#x2014;O&#x2014;C(O)&#x2014;[(O&#x2014;R)&#x2014;(O&#x2014;C(O)]&#x2014;O&#x2014;R&#x2014;X. Each of Rand Rindependently is alkyl; Ris alkyl, &#x2014;X&#x2014;Si(R)(R)(R), or &#x2014;CH&#x2014;O&#x2014;C(O)&#x2014;O&#x2014;R; Xis H or &#x2014;Si(R)(R)(R); each of Rand Rindependently is alkylene; each Rindependently is Cto Calkylene; each of R, R, R, and Rindependently is alkyl; Xis O or alkylene; each of Rand Rindependently is alkyl; Ris alkyl or &#x2014;X&#x2014;Si(R)(R)(R); each of R, R, and Rindependently is alkyl; Xis O or alkylene; m is 0 or 1, and n is 1-3; and when m is 0 and Ris alkyl, Xis &#x2014;Si(R)(R)(R). Also described is a method for manufacturing a compound of Formula (II): (R)(R)(R)Si&#x2014;CH&#x2014;O&#x2014;C(O)&#x2014;O&#x2014;Rwhere each R, R, R, and Ris alkyl.

Solvent for non-aqueous battery

Carbonate esters of Formula (I): (R)(R)(R)Si&#x2014;R&#x2014;O&#x2014;C(&#x2550;O)&#x2014;O&#x2014;R&#x2014;Si(R)(R)(R) are prepared by reaction of a silyl-substituted alcohol of Formula (II): (R)(R)(R)Si&#x2014;R&#x2014;OH with an activated carbonyl compound of Formula (III): C(&#x2550;O)Zin the presence of a catalyst (e.g., an bicyclic amidine, a bicyclic guanidine, or a phosphazene) in an aprotic solvent. In Formulas (I) and (II) each of Rand Rindependently is alkyl; Ris alkyl or &#x2014;X&#x2014;Si(R)(R)(R); Xis O or alkylene; Ris alkylene; and each R, R, and Rindependently is alkyl. In Formula (III), Z is 1-N-imidazolyl or 1-N-succinimidyl. In some embodiments, the catalyst used in the methods described herein comprises at least one base selected from the group consisting of a bicyclic amidine and a bicyclic guanidine. The reaction proceeds readily under both bulk and continuous flow reactor conditions.

Method for preparing bis-(silylalkyl)carbonate esters

The invention provides a method for producing halogenated carbonates, the method comprising reacting a halogenated alcohol or diol with a solid source of carbonyl moiety as a base in an ether.

Process for producing fluorinated electrolyte solvent

A method for producing halogenated carbonates is provided, the method having the steps of reacting a halogenated hydroxyl moiety with an alkyl formate in the presence of a liquid solvent and a solid base. An exemplary halogenated carbonate so produced is trifluoroethyl methyl carbonate.

Process for the production of high voltage electrolyte solvents for Li-ion batteries

Methods for preparing electrolyte salts for alkaline earth metal-ion batteries (e.g., calcium and magnesium ion batteries) are described. The electrolyte salts comprise alkaline earth metal (e.g., Mg or Ca) salts of bis(fluorosulfonyl)imide (FSI) and 3,4-dicyano-2-trifluoromethylimidazole (TDI). The methods comprise contacting FSI or TDI with an alkaline earth metal bis(trifluoroacetate) salt in trifluoroacetic acid.

The invention provides a method for producing a molecule capable of undergoing reduction-oxidation when subjected to a voltage potential, the method comprising phosphorylating hydroquinone to create a first intermediate; rearranging the first intermediate to an aryl-bis-(phosphonate) thereby creating a second intermediate comprising phosphorous alkoxy groups; alkylating (e.g., methylating) the second intermediate; converting the alkoxy groups to halides; and substituting the halides to alkyl or aryl groups. Also provided is a system for preventing overcharge in a Lithium-ion battery, the method comprising a mixture of a redox shuttle with electrolyte in the battery such that the shuttle comprises between about 10 and about 20 weight percent of the mixture.

High voltage redox shuttles, method for making high voltage redox shuttles

The invention provides a method for producing electrolyte solvent, the method comprising reacting a glycol with a disilazane in the presence of a catalyst for a time and at a temperature to silylate the glycol, separating the catalyst from the silylated glycol, removing unreacted silazane; and purifying the silylated glycol.

Growing community of inventors

Carol Stream, IL, United States of America

Trevor L Dzwiniel