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公开(公告)号：US10050313B2
公开(公告)日：2018-08-14
申请号：US15186526
申请日：2016-06-19
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC , Bar-Ilan University
Inventor： Shalom Luski , Doron Aurbach , Bob R. Powell, Jr. , Ion C. Halalay , Timothy J. Fuller , Anjan Banerjee , Baruch Ziv , Yuliya Shilina
IPC: H01M10/42 , H01M2/16 , H01M10/0525
Abstract: A lithium ion battery includes a positive and a negative electrode, and a nanoporous or microporous polymer separator soaked in electrolyte solution and disposed between the electrodes. At least two different chelating agents are included and selected to complex with: i) two or more different transition metal ions; ii) a transition metal ion in two or more different oxidation states; or iii) both i) and ii). The at least two different selected chelating agents are to complex with transition metal ions in a manner sufficient to not affect movement of lithium ions across the separator during operation of the battery. The chelating agents are: dissolved or dispersed in the electrolyte solution; grafted onto the polymer of the separator; attached to the binder material of the negative and/or positive electrode; disposed within pores of the separator; coated on a surface of the separator; and/or coated on a surface of an electrode.
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公开(公告)号：US10008749B2
公开(公告)日：2018-06-26
申请号：US15186525
申请日：2016-06-19
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC , Bar-Ilan University
Inventor： Shalom Luski , Doron Aurbach , Ion C. Halalay , Timothy J. Fuller , Bob R. Powell, Jr. , Anjan Banerjee , Baruch Ziv , Yuliya Shilina
IPC: H01M10/42 , H01M4/62 , H01M4/587 , H01M4/525 , H01M4/505 , H01M4/133 , H01M4/131 , H01M2/16 , H01M10/0525
CPC classification number: H01M10/4235 , H01M2/1653 , H01M2/166 , H01M4/131 , H01M4/133 , H01M4/505 , H01M4/525 , H01M4/587 , H01M4/623 , H01M4/625 , H01M10/0525 , H01M10/0567
Abstract: A lithium ion battery includes positive and negative electrodes, and a nanoporous or microporous polymer separator soaked in an electrolyte solution, between the positive electrode and the negative electrode. Chelating agent(s) are included to complex with transition metal ions while not affecting movement of lithium ions across the separator during operation of the lithium ion battery. The chelating agents are: dissolved in the electrolyte solution; grafted onto the polymer of the separator; attached to the binder material of the negative and/or positive electrode; coated on a surface of the separator; and/or coated on a surface of the negative and/or positive electrode. The chelating agents are selected from: ion traps in molecular form selected from polyamines, thiols and alkali metal salts of organic acids; polymers functionalized with alkali metal salts of organic acids; polymers functionalized with nitrogen-containing functional groups; and polymers functionalized with two or more functional groups.
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公开(公告)号：US10122002B2
公开(公告)日：2018-11-06
申请号：US14601355
申请日：2015-01-21
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jung Hyun Kim , Bob R. Powell, Jr. , Meng Jiang , Peng Lu , Xingcheng Xiao , Nicholas P. W. Pieczonka
IPC: H01M2/16 , H01M10/0525 , H01M4/13 , H01M10/0562 , H01M10/0565 , H01M10/056 , H01M10/0585 , H01M4/525 , H01M4/505 , H01M4/02 , H01M4/587
Abstract: A lithium-ion conducting, solid electrolyte is deposited on a thin, flexible, porous alumina membrane which is placed between co-extensive facing side surfaces of a porous, lithium-accepting, negative electrode and a positive electrode formed of a porous layer of particles of a compound of lithium, a transition metal element, and optionally, another metal element. A liquid electrolyte formed, for example, of LiPF6 dissolved in an organic solvent, infiltrates the electrode materials of the two porous electrodes for transport of lithium ions during cell operation. But the solid electrolyte permits the passage of only lithium ions, and the negative electrode is protected from damage by transition metal ions or other chemical species produced in the positive electrode of the lithium-ion cell.
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公开(公告)号：US09828963B2
公开(公告)日：2017-11-28
申请号：US14950059
申请日：2015-11-24
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Robert S. Conell , Bob R. Powell, Jr. , Mark W. Verbrugge , Scott W. Jorgensen
CPC classification number: F02N11/0803 , B60Y2300/18066 , B60Y2400/47 , F02N11/006 , F02N11/04 , F02N11/0825 , F02N11/0833 , F02N11/0866 , F02N11/10 , F02N15/08 , F02N2011/0896 , F02N2200/06 , F02N2200/0801 , F02N2300/30 , Y02T10/48 , Y02T10/76
Abstract: A method for fault-tolerant coasting control of a powertrain system having an engine and a first energy storage system (ESS) includes receiving a real impedance value of the first ESS from a frequency analyzer device at a calibrated frequency while the engine is running, and comparing the real impedance value to a calibrated impedance. A coasting maneuver is enabled allowing the engine to turn off above a threshold speed when the real impedance value is less than the calibrated impedance. The method may include starting the engine using a second ESS in parallel with the first ESS to exit the coasting maneuver when the real impedance value exceeds the calibrated impedance. Subsequent execution of the coasting maneuver may be prevented as long as the real impedance value exceeds the calibrated impedance. A powertrain system includes the engine, starter motor, rechargeable ESS, frequency analyzer, and controller.
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公开(公告)号：US10581119B2
公开(公告)日：2020-03-03
申请号：US15644422
申请日：2017-07-07
Applicant: GM Global Technology Operations LLC
Inventor： Ion C. Halalay , Zicheng Li , Timothy J. Fuller , Bob R. Powell, Jr.
IPC: H01M10/42 , H01M10/0567 , H01M10/052 , H01M4/13 , B01J39/04 , B01J39/18 , C08J5/22 , H01M10/0525 , H01M10/0568 , H01M4/587 , H01M2/16 , H01M4/36 , H01M4/62
Abstract: Electrochemical cells that cycle lithium ions and methods for suppressing or minimizing dendrite formation are provided. The electrochemical cells include a positive electrode, a negative electrode, and a separator disposed therebetween. At least one transition metal ion-trapping moiety, including one or more polymers functionalized with one or more trapping groups, may be included within the electrochemical cell as a coating, pore filler, substitute pendant group, or binder. The one or more trapping groups may be selected from the group consisting of: crown ethers, siderophores, bactins, ortho-phenanthroline, iminodiacetic acid dilithium salt, oxalates malonates, fumarates, succinates, itaconates, phosphonates, and combinations thereof, and may bind to metal ions found within the electrochemical cell to minimize or suppress formation of dendrite protrusions on the negative electrode.
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Patent Agency Ranking
6.发明授权公开(公告)号：US10581117B2
公开(公告)日：2020-03-03
申请号：US15644436
申请日：2017-07-07
Applicant: GM Global Technology Operations LLC
Inventor： Ion C. Halalay , Timothy J. Fuller , Bob R. Powell, Jr.
IPC: H01M10/0567 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M4/38 , H01M2/16
Abstract: Electrochemical cells that cycle lithium ions and methods for suppressing or minimizing deposition of transition metal ions at negative electrodes are provided. The electrochemical cells include a positive electrode, a negative electrode, a separator disposed therebetween, and an electrolyte system including one or more lithium salts, one or more solvents, and at least one additive complexing compound. The at least one additive complexing compound includes an alkyl group having greater than or equal to 4 carbon atoms and less than or equal to 22 carbon atoms and a transition metal ion trapping group. The at least one additive compound associates with a surface of the separator via van der Waal's interactive forces and is further capable of complexing with transition metal ion within the electrochemical cell to sequester or tether the ions generated by contaminants to minimize or suppress the deposition of transition metal cations on the negative electrode.
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公开(公告)号：US10220835B2
公开(公告)日：2019-03-05
申请号：US15446380
申请日：2017-03-01
Applicant: GM Global Technology Operations LLC
Inventor： Scott W. Jorgensen , Bob R. Powell, Jr. , Robert S. Conell , Mark W. Verbrugge
Abstract: In a vehicle, a first energy storage device has a first direct current (DC) operating voltage; and a second energy storage device has a second DC operating voltage. The second DC operating voltage is greater than or less than the first DC operating voltage the first DC operating voltage. A switch is connected between the first and second energy storage devices. A fault diagnostic module, while an internal combustion engine of the vehicle is shut down, diagnoses that a fault is present when a voltage of the first energy storage device is less than a predetermined DC voltage. The predetermined DC voltage is less than the first DC operating voltage. A switch control module closes the switch when the fault is diagnosed. A starter control module, when the fault is diagnosed, applies power to a starter from the second energy storage device via the switch.
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公开(公告)号：US10411252B2
公开(公告)日：2019-09-10
申请号：US15019481
申请日：2016-02-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Nicholas P. W. Pieczonka , Jung-Hyun Kim , Bob R. Powell, Jr. , Mark W. Verbrugge
IPC: H01M4/36 , H01M4/04 , H01M4/48 , H01M4/50 , H01M4/58 , H01M4/62 , H01M4/66 , H01M10/05 , H01M10/0525 , H01M4/485 , H01M4/505 , H01M4/525 , H01M10/0568
Abstract: A positive electrode composition includes a binder material; an electrically conductive material dispersible in the binder material and comprising a plurality of conductive carbon particles; an active material dispersible in the binder material and comprising a plurality of active particles; and a coating agent comprising one of a non-lithiated polymer, an at least partially-lithiated polymer, and a fully-lithiated polymer. The coating agent is disposed on and at least partially encapsulates at least one of: each of the plurality of conductive carbon particles and each of the plurality of active particles. A positive electrode of a lithium ion electrochemical cell includes a current collector comprising aluminum and a layer formed from the positive electrode composition and disposed on the current collector. A method of forming the positive electrode is also disclosed.
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公开(公告)号：US10211452B2
公开(公告)日：2019-02-19
申请号：US14973356
申请日：2015-12-17
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Meng Jiang , Bob R. Powell, Jr. , Jung-Hyun Kim
Abstract: A lithium ion battery component includes a support selected from the group consisting of a current collector, a negative electrode, and a porous polymer separator. A lithium donor is present i) as an additive with a non-lithium active material in a negative electrode on the current collector, or ii) as a coating on at least a portion of the negative electrode, or iii) as a coating on at least a portion of the porous polymer separator. The lithium donor has a formula selected from the group consisting of Li8-yMyP4, wherein M is Fe, V, or Mn and wherein y ranges from 1 to 4; Li10-yTiyP4, wherein y ranges from 1 to 2; LixP, wherein 0
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10.发明授权公开(公告)号：US08999584B2
公开(公告)日：2015-04-07
申请号：US13832297
申请日：2013-03-15
Applicant: GM Global Technology Operations LLC
Inventor： Meng Jiang , Xingcheng Xiao , Mei Cai , Li Yang , Bob R. Powell, Jr.
CPC classification number: H01M4/58 , H01M2/145 , H01M4/0404 , H01M4/136 , H01M4/1397 , H01M4/364 , H01M4/366 , H01M10/0525 , H01M2220/20 , Y02E60/122 , Y10T29/49115
Abstract: A Li-ion battery is disclosed, the Li-ion battery including an anode, a cathode, a lithium donor formed from a Li-containing material, and an electrolyte in communication with the anode, the cathode, and the lithium donor. The lithium donor may be incorporated into the anode, incorporated into the cathode, a layer formed on either an anode side or a cathode side of a separator of the battery. The lithium donor is formed from Li-containing material insensitive to oxygen and aqueous moisture.
Abstract translation: 公开了一种锂离子电池，所述锂离子电池包括阳极，阴极，由含锂材料形成的锂供体以及与阳极，阴极和锂供体连通的电解质。 锂供体可以结合到阳极中，并入阴极中，形成在电池的隔板的阳极侧或阴极侧上的层。 锂供体由对氧和水分不敏感的含Li材料形成。
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