Daniel C Abraham

US Patent:

20110117445, May 19, 2011

Filed:

Oct 22, 2010

Appl. No.:

12/910549

Inventors:

Daniel P. ABRAHAM - Bolingbrook IL, US

Assignee:

UChicago Argonne, LLC - Chicago IL

International Classification:

H01M 10/056

US Classification:

429330, 429342, 429335, 429329

Abstract:

The present invention provides an electrolyte for lithium and lithium-ion batteries comprising a lithium salt such as LiFBCO, LiPF, LiBF, and/or LiB(CO). In a liquid carrier comprising glycerol carbonate. Preferably, the electrolyte comprises a combination of glycerol carbonate with one or more other carbonate solvent (e.g., dimethylcarbonate, ethylene carbonate, and the like).

US Patent:

20130052542, Feb 28, 2013

Filed:

Aug 29, 2011

Appl. No.:

13/219825

Inventors:

Daniel P. ABRAHAM - Bolingbrook IL, US
Gang CHENG - Naperville IL, US

Assignee:

UCHICAGO ARGONNE, LLC - Chicago IL

International Classification:

H01M 10/056

US Classification:

429332, 429331

Abstract:

The present invention provides an electrolyte composition for a lithium or lithium-ion battery comprising a lithium salt in a liquid carrier comprising (a) a linear alkyl carbonate solvent, a cyclic alkyl carbonate solvent, or a combination thereof, and (b) a glycerol carbonate derivative compound of Formula (I):wherein X is selected from O, O(CO)O, S, N, P, P(═O), B, and Si; n is 1 when X is O, O(CO)O, or S; n is 2 when x is N, P, P(═O), or B; n is 3 when X is Si; and each R independently is selected from alkyl, alkenyl, alkynyl, aryl, acyl, heteroaryl, a 5-member ring heterocyclic group, a 5-member ring heterocycle-substituted methyl group, trialkylsilyl, and any of the foregoing substituted with one or more fluoro substituents, provided that R is acyl only when X is O, S, or N, and R is not alkyl when X is O(CO)O.

US Patent:

20210043975, Feb 11, 2021

Filed:

Oct 19, 2020

Appl. No.:

17/074311

Inventors:

- Chicago IL, US
Ilya A. SHKROB - Chicago IL, US
Daniel ABRAHAM - Bolingbrook IL, US
Zhengcheng ZHANG - Naperville IL, US

Assignee:

UCHICAGO ARGONNE, LLC - Chicago IL

International Classification:

H01M 10/0567
H01M 4/587
H01M 10/0569
H01M 10/0525

Abstract:

Lithium tetrafluoro(malonato)phosphate compounds are useful as additives in lithium ion battery applications. The compounds are represented by Formula (I): MPF[—O(C═O)—(CX′X″)—(C═O)O—]; wherein M is Li or Na; each X′ and X″ independently is selected from the group consisting of H, alkyl, fluoro-substituted alkyl, and F; or wherein the X′ and X″ together are —CR—(CR′)—CR″—; each R, R′ and R″ independently is selected from the group consisting of H methyl, trifluoromethyl, and F; and in is 0 or 1. These compounds can be prepared in high purity and a high yield by reaction of a metal hexafluorophosphate with a bis-silyl malonate compound. A similar oxalato compound, lithium tetrafluoro(oxalato)phosphate), can be made in the same manner, but using a bis-silyl oxalate in place of the bis-silyl malonate. Advantageously, the compounds can be formed, in situ, in a LiPF-containing electrolyte solution.

US Patent:

20210036370, Feb 4, 2021

Filed:

Oct 12, 2020

Appl. No.:

17/068066

Inventors:

- Chicago IL, US
Ilya A. SHKROB - Chicago IL, US
Chen LIAO - Westmont IL, US
Daniel ABRAHAM - Bolingbrook IL, US
Hakim IDDIR - Hoffman Estates IL, US
Juan GARCIA - Naperville IL, US

Assignee:

UCHICAGO ARGONNE, LLC - Chicago IL

International Classification:

H01M 10/0567
H01M 10/0525
H01M 10/058
H01M 10/0569
H01M 10/0568

Abstract:

This invention relates to an electrolyte composition for a lithium ion battery comprising a lithium salt in a non-aqueous solvent containing an additive comprising a compound of formula RSiOP(O)F; wherein each R independently is a hydrocarbyl group; and n is 0 or 1; and wherein the additive is substantially free from (RSiO)P(O)and (RSiO)P(O)F. Electrochemical cells and batteries also are described.

US Patent:

20190207256, Jul 4, 2019

Filed:

Mar 9, 2018

Appl. No.:

15/916723

Inventors:

- Chicago IL, US
Ilya A. SHKROB - Chicago IL, US
Chen LIAO - Westmont IL, US
Daniel ABRAHAM - Bolingbrook IL, US
Hakim IDDIR - Hoffman Estates IL, US
Juan GARCIA - Naperville IL, US

Assignee:

UCHICAGO ARGONNE, LLC - Chicago IL

International Classification:

H01M 10/0567
H01M 10/0525
H01M 10/058
H01M 10/0568
H01M 10/0569

Abstract:

This invention relates to a method for preparing an electrochemical cell comprising the sequential steps of preparing a solution of a lithium salt in an non-aqueous solvent containing an additive compound, and maintaining the solution at a temperature in the range of about 20 to about 30 C. for about 5 to 10 days to form an aged electrolyte; assembling an electrochemical cell from an anode, a cathode, and the aged electrolyte; and electrochemically subjecting the electrochemical cell to formation cycling. The additive compound comprises one or more compounds selected from the group consisting of: (RSiO)B, (RSiO)XY, (RSiO)P, (R′O)PO, (RSi)X′, RSiOS(O)R′; (RSi)OC(═O)R′; wherein each R and R′ independently is a hydrocarbyl group; X is P or B; Y is O or S; X is Ti or Al. Electrochemical cells and batteries also are described.

US Patent:

20180309168, Oct 25, 2018

Filed:

Apr 20, 2017

Appl. No.:

15/492260

Inventors:

- Chicago IL, US
Cameron Peebles - Oak Park IL, US
Daniel Abraham - Bolingbrook IL, US
Zhengcheng Zhang - Naperville IL, US

Assignee:

UCHICAGO ARGONNE, LLC - Chicago IL

International Classification:

H01M 10/0567
H01M 10/0525
H01M 10/0568
H01M 10/0569

Abstract:

A non-aqueous electrolyte for a lithium-ion battery comprises a lithium salt and an additive in an organic solvent. The additive comprises a di-substituted malonate silyl ester compound, in which the hydrogens of the malonate methylene group are replaced by substituents R(e.g., alkyl) and X (e.g., halogen). Each of the carboxylic acid groups of the malonate are esterified by a monovalent silyl group such as —Si(R); or the two carboxylic acid groups are esterified by a single divalent silylene group such as —Si(R)— to form a ring therewith. Each Rand Rindependently is alkyl, phenyl, or alkoxy; and each substituted-alkyl comprises an alkyl moiety substituted with one or more group selected from alkenyl, alkynyl, hydroxy, halogen, alkoxy, carboxylic acid, carboxylic ester, carboxylic amide, phenyl, sulfonic acid, and phosphonic acid.

US Patent:

20140220417, Aug 7, 2014

Filed:

Feb 12, 2014

Appl. No.:

14/179051

Inventors:

- Chicago IL, US
Daniel P. ABRAHAM - Bolingbrook IL, US

Assignee:

UCHICAGO ARGONNE, LLC - Chicago IL

International Classification:

H01M 10/0569
H01M 10/0525
H01M 10/052

US Classification:

429156, 429336, 429337, 429327, 429328, 429329, 429334

Abstract:

The present invention provides an electrolyte for lithium and/or lithium-ion batteries comprising a lithium salt in a liquid carrier comprising heteroaromatic compound including a five-membered or six-membered heteroaromatic ring moiety selected from the group consisting of a furan, a pyrazine, a triazine, a pyrrole, and a thiophene, the heteroaromatic ring moiety bearing least one carboxylic ester or carboxylic anhydride substituent bound to at least one carbon atom of the heteroaromatic ring. Preferred heteroaromatic ring moieties include pyridine compounds, pyrazine compounds, pyrrole compounds, furan compounds, and thiophene compounds.