-
公开(公告)号：US20190165416A1
公开(公告)日：2019-05-30
申请号：US16265550
申请日：2019-02-01
Applicant: GM Global Technology Operations LLC
Inventor： Fang Dai , Mahmoud Abd Elhamid , Mei Cai , Anne M. Dailly , Robert M. Lapierre
IPC: H01M10/0565 , H01M10/0525
Abstract: Systems and methods of providing an electrolyte membrane for metal batteries are described. According to aspects of the disclosure, a battery cell includes an anode, a cathode, and an electrolyte membrane therebetween. The electrolyte membrane is formed from a mixture including a matrix precursor portion and an electrolyte portion. In some aspects, the membrane is polymerized after being applied to the battery component.
-
公开(公告)号：US20190165415A1
公开(公告)日：2019-05-30
申请号：US16265326
申请日：2019-02-01
Applicant: GM Global Technology Operations LLC
Inventor： Fang Dai , Mahmoud Abd Elhamid , Mei Cai , Anne M. Dailly , Robert M. Lapierre
IPC: H01M10/0565 , H01M4/36 , H01M4/76 , H01M10/0525 , H01M2/16
Abstract: Systems and methods of providing an electrolyte membrane for metal batteries are described. According to aspects of the disclosure, a method includes preparing a mixture including an electrolyte portion and a matrix precursor portion, forming an electrolyte membrane by initiating polymerization of the gel-forming precursor and the gel-forming initiator to thereby form a polymer matrix, and disposing the electrolyte membrane between an anode and a cathode. The matrix precursor portion includes a gel-forming precursor and a gel-forming initiator. The electrolyte portion is disposed substantially throughout the polymer matrix.
-
23.发明申请公开(公告)号：US20190058211A1
公开(公告)日：2019-02-21
申请号：US15677249
申请日：2017-08-15
Applicant: GM Global Technology Operations LLC
IPC: H01M10/0525 , H01M10/0569
Abstract: A highly-concentrated electrolyte system for an electrochemical cell is provided, along with methods of making the highly-concentrated electrolyte system. The electrolyte system includes a bound moiety having an ionization potential greater than an electron affinity and comprising one or more salts selected from the group consisting of: lithium bis(fluorosulfonyl)imide (LiFSI), sodium bis(fluorosulfonyl)imide (NaFSI), potassium bis(fluorosulfonyl)imide (KFSI), and combinations thereof bound to a solvent comprising dimethoxyethane (DME). The one or more salts have a concentration in the electrolyte system of greater than about 4M, and a molar ratio of the one or more salts to the dimethoxyethane (DME) is greater than or equal to about 1 to less than or equal to about 1.5. The one or more salts binds to the dimethoxyethane (DME) causing the electrolyte system to be substantially free of unbound dimethoxyethane (DME) and unbound bis(fluorosulfonyl)imide (FSI−).
-
公开(公告)号：US20190058210A1
公开(公告)日：2019-02-21
申请号：US15677760
申请日：2017-08-15
Applicant: GM Global Technology Operations LLC
Inventor： Fang Dai , Li Yang , Thomas A. Yersak , James R. Salvador , Mei Cai
IPC: H01M10/056 , H01M10/0525 , H01M4/131 , H01M4/38
Abstract: An electrochemical cell includes a negative electrode that contains lithium and an electrolyte system. In one variation, the electrolyte system includes a first liquid electrolyte, a solid-dendrite-blocking layer, and an interface layer. The solid dendrite-blocking layer is ionically conducting and electrically insulating. The dendrite-blocking layer includes a first component and a distinct second component. The dendrite-blocking layer has a shear modulus of greater than or equal to about 7.5 GPa at 23° C. The interface layer is configured to interface with a negative electrode including lithium metal on a first side and the dendrite blocking layer on a second opposite side. The interface layer includes a second liquid electrolyte, a gel polymer electrolyte, or a solid-state electrolyte. The dendrite-blocking layer is disposed between the first liquid electrolyte and the interface layer.
-
公开(公告)号：US20190036111A1
公开(公告)日：2019-01-31
申请号：US15661240
申请日：2017-07-27
Applicant: GM Global Technology Operations LLC
Inventor： Xingcheng Xiao , Jingmei Shen , Mei Cai , Martin S. Ruthkosky
CPC classification number: H01M4/366 , C23C24/02 , H01M4/1391 , H01M4/1393 , H01M4/1395 , H01M4/364 , H01M4/386 , H01M4/505 , H01M4/525 , H01M4/587 , H01M10/0525 , H01M2220/20
Abstract: Methods for making electroactive composite materials for electrochemical cells are provided. The method includes introducing a particle mixture comprising a first particle having a first diameter (R1) and comprising a first electroactive material and a second particle having a second diameter (R2) smaller than the first diameter (R1) and comprising a second electroactive material into a dry-coating device having a rotatable vessel defining a cavity and a rotor disposed therewithin. The vessel is rotated at a first speed in a first direction, and the rotor is rotated at a second speed greater than the first speed in a second direction opposing the first direction. The particle mixture flows between cavity walls and the rotor and experiences thrusting and compression forces that create a substantially uniform coating comprising the second electroactive material on one or more exposed surfaces of the first particle.
-
Patent Agency Ranking
公开(公告)号：US10141559B2
公开(公告)日：2018-11-27
申请号：US15091331
申请日：2016-04-05
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Qiangfeng Xiao , Mei Cai
IPC: H01M2/16 , H01M2/14 , H01M10/052 , H01M4/13
Abstract: A porous interlayer for a lithium-sulfur battery includes an electronic component and a negatively charged or chargeable lithium ion conducting component. The electronic component is selected from a carbon material, a conductive polymeric material, and combinations thereof. In an example, the porous interlayer may be disposed between a sulfur-based positive electrode and a porous polymer separator in a lithium-sulfur battery. In another example, the porous interlayer may be formed on a surface of a porous polymer separator.
-
27.发明申请公开(公告)号：US20180237656A1
公开(公告)日：2018-08-23
申请号：US15435820
申请日：2017-02-17
Applicant: GM Global Technology Operations LLC
Inventor： Fang Dai , Mei Cai , Tao Wang , Mohammed Bahauddin , Sherman Zeng
IPC: C09D171/00 , H01M2/10 , H01M10/0525
CPC classification number: C09D171/00 , F28D1/03 , H01M2/1077 , H01M2/1094 , H01M10/0525 , H01M10/625 , H01M10/6567 , H01M2220/20 , Y02E60/122
Abstract: The present disclosure provides a battery pack component including a self-healing coating. The self-healing coating is disposed on at least a portion of a surface of the battery pack component. The self-healing coating includes a first precursor including a cyclic ether capable of reacting in a self-healing cationic ring-opening polymerization reaction. The self-healing coating further includes an initiator including an alkali metal salt. The self-healing cationic ring-opening polymerization reaction occurs when a defect is present in the self-healing coating. In certain aspects, the cyclic ether may include 1,3-dioxolane (C3H6O2) and the initiator may include lithium bis(fluorosulfonyl)imide (F2NaNO4S2). In other aspects, the self-healing coating may include a second precursor that is capable of copolymerizing with the first precursor. In still other aspects, the present disclosure provides a method of making a self-healing coating for a battery pack component.
-
公开(公告)号：US09647254B2
公开(公告)日：2017-05-09
申请号：US14560322
申请日：2014-12-04
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Gayatri Vyas Dadheech , Mei Cai
CPC classification number: H01M2/145 , B82Y30/00 , C23C4/10 , C23C4/134 , H01M2/1646 , H01M2/1653 , H01M2/1686
Abstract: In a one-step method for preparing a coated separator, a suspension of i) a ceramic, ii) a cermet, iii) a ceramic with an electrolyte, or iv) a cermet with an electrolyte in a carrier liquid is plasma sprayed without a carrier gas. The carrier liquid is water, alcohol, ethylene glycol, or mixtures thereof.
-
公开(公告)号：US20170114458A1
公开(公告)日：2017-04-27
申请号：US15276154
申请日：2016-09-26
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Xingcheng Xiao , Mei Cai , Gongshin Qi
IPC: C23C16/455 , F01N3/20 , C23C16/02
Abstract: In an example of a method for suppressing aging of platinum group metal (PGM) particles in a catalytic converter, PGM particles are applied to a support. A surface of the PGM particles is passivated by exposing the PGM particles to carbon monoxide at a temperature equal to or less than 200° C. to introduce —CO groups to the surface. Atomic layer deposition (ALD) is performed to selectively grow a barrier on the support around the PGM particles.
-
公开(公告)号：US09624851B2
公开(公告)日：2017-04-18
申请号：US14614386
申请日：2015-02-04
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Anne M. Dailly , Jose Franca , Mei Cai , Arianna T. Morales , Mahmoud H. Abd Elhamid , Robert Lee Girdwood
CPC classification number: F02D41/0025 , B60W10/06 , B60W10/08 , B60W20/15 , B60W30/182 , B60Y2400/433 , F02D19/061 , F02D19/0615 , F02D19/0647 , F02D19/0692 , F02D29/02 , F02D41/0027 , F02D2200/0602 , F02D2200/604 , F02D2200/606 , Y02T10/36 , Y02T10/6286 , Y10S903/93
Abstract: A method of operating a vehicle powertrain includes determining a selected powertrain operational mode. A demand fraction is determined. An internal combustion engine (ICE) is to output a maximum power when a gaseous fuel is conveyed to an injector of the ICE at a source pressure greater than a cutoff pressure. The source pressure in a container in fluid connection with the injector is determined. The gaseous fuel is received at the source pressure by the injector to inject the gaseous fuel into the ICE for combustion in response to the source pressure, demand fraction, or selected powertrain operation mode meeting a first set of criteria. The injector is prevented from injecting the gaseous fuel into the ICE and the powertrain is driven from an alternative power source in response to the source pressure, demand fraction, or selected powertrain operation mode meeting a second set of criteria.
-
-
-
-
-
-
-
-
-
Search Results
230
records
(took 0.033 seconds)
