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公开(公告)号：US10573879B2
公开(公告)日：2020-02-25
申请号：US15115870
申请日：2015-02-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Li Yang , Qiangfeng Xiao , Mei Cai , Meng Jiang , Xingcheng Xiao
IPC: H01M4/04 , H01M4/38 , H01M10/0568 , H01M10/0569 , H01M4/134 , H01M10/052 , H01M10/0567 , H01M4/1395 , H01M10/0525
Abstract: In an example of a method for enhancing the performance of a silicon-based negative electrode, the silicon-based negative electrode is pre-lithiated in an electrolyte including a lithium salt dissolved in a solvent mixture of dimethoxyethane (DME) and fluoroethylene carbonate (FEC). The DME and FEC are present in a volume to volume ratio ranging from 10 to 1 to 1 to 10. The pre-lithiation forms a stable solid electrolyte interface layer on an exposed surface of the negative electrode.
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公开(公告)号：US20190288273A1
公开(公告)日：2019-09-19
申请号：US15924980
申请日：2018-03-19
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Li Yang , Mark W. Verbrugge , Mei Cai , Meng Jiang
IPC: H01M4/04 , H01M10/0525 , H01M10/0563
Abstract: A method of making an electrochemical cell comprising a silicon-containing anode includes forming a first electrochemical cell comprising the silicon-containing anode and a first electrolyte system, pre-lithiating the silicon-containing anode to produce a pre-lithiated anode in the first electrochemical cell, and forming a second electrochemical cell including the pre-lithiated anode and a second electrolyte system. The first electrolyte system includes a fluorinated solvent in an amount greater than 5 wt % and a first salt; and the second electrolyte system includes a hydrocarbon and a second salt. Forming the second electrochemical cell may include removing the first electrolyte system from the first electrochemical cell and introducing the second electrolyte to the emptied first electrochemical cell; or removing the pre-lithiated anode from the first electrochemical cell and constructing the second electrochemical cell with the pre-lithiated anode and the second electrolyte system.
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公开(公告)号：US20190190012A1
公开(公告)日：2019-06-20
申请号：US15843942
申请日：2017-12-15
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Yan Wu , Meng Jiang , Mark W. Verbrugge , Raghunathan K
CPC classification number: H01M4/364 , B60Y2400/112 , H01M4/131 , H01M4/133 , H01M4/366 , H01M4/485 , H01M4/587 , H01M10/0525 , H01M2004/027 , H02J7/0068 , H02P27/08
Abstract: A hybrid negative electrode having high energy capacity and high power capacity used in an electrochemical cell for lithium-ion electrochemical batteries is provided. The electrode may include about 40% to about 60% by mass of a high energy capacity electroactive material having a specific capacity of greater than or equal to about 310 mAh/g and about 40% to about 60% by mass of a high power capacity electroactive material having a potential versus Li/Li+ of greater than or equal to about 1 V during lithium ion insertion. The hybrid negative electrode is capable of a charge rate of greater than or equal to about 4 C at 25° C. In other variations, an electrochemical cell is provided that includes a first negative electrode with a high energy capacity electroactive material and a second negative electrode with a high power capacity electroactive material.
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公开(公告)号：US20250029973A1
公开(公告)日：2025-01-23
申请号：US18354018
申请日：2023-07-18
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Meng Jiang , Xiaosong Huang , Bradley R. Frieberg , Louis G. Hector, Jr.
Abstract: An anode for a rechargeable battery cell includes an electrode substrate and a current collector fixed to the electrode substrate. The anode also includes an active layer arranged on the current collector and having discrete first material sections and at least one second material section arranged in an alternating pattern. Each discrete material section is aligned parallel to the current collector. The active layer is configured to intercalate transient ions during charging of the battery cell and de-intercalate the transient ions during discharging of the battery cell. A method of manufacturing such an anode for a rechargeable battery cell is also considered.
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公开(公告)号：US20240313257A1
公开(公告)日：2024-09-19
申请号：US18183549
申请日：2023-03-14
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Meng Jiang , Louis G. Hector, Jr. , Erik B. Golm , Meinan He , Yangbing Zeng
IPC: H01M10/0525 , H01M10/0585 , H01M10/52
CPC classification number: H01M10/0525 , H01M10/0585 , H01M10/52
Abstract: A battery cell is provided. The battery cell includes an external container and an electrode stack disposed within the external container. The electrode stack includes at least one pair of an anode and a cathode. The battery cell further includes an electrolyte disposed within the external container and an O2 scavenger material disposed within the external container. The O2 scavenger material is configured for absorbing oxygen gas generated within the electrode stack.
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Patent Agency Ranking
公开(公告)号：US11784305B2
公开(公告)日：2023-10-10
申请号：US16539647
申请日：2019-08-13
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Li Yang , Mei Cai , Meng Jiang , Martin S. Ruthkosky
IPC: H01M4/36 , H01M4/38 , H01M4/62 , H01M10/0569 , H01M10/0525
CPC classification number: H01M4/366 , H01M4/386 , H01M4/621 , H01M4/625 , H01M10/0569 , H01M10/0525 , H01M2300/0034 , H01M2300/0037 , H01M2300/0091
Abstract: An example of a negative electrode includes silicon nanoparticles having a carbon coating thereon. The carbon coating has an oxygen-free structure including pentagon rings. The negative electrode with the silicon nanoparticles having the carbon coating thereon may be incorporated into a lithium-based battery. In an example of a method, silicon nanoparticles are provided. A carbon precursor is applied on the silicon nanoparticles. The carbon precursor is an oxygen-free, fluorene-based polymer. Then the silicon nanoparticles are heated in an inert gas atmosphere to form the carbon coating on the silicon nanoparticles. The carbon coating formed on the silicon nanoparticles has an oxygen-free structure including pentagon rings.
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公开(公告)号：US11325594B2
公开(公告)日：2022-05-10
申请号：US16785771
申请日：2020-02-10
Applicant: GM Global Technology Operations LLC
Inventor： Shengbing Jiang , Shuqing Zeng , Prakash Mohan Peranandam , Meng Jiang , Jiyu Zhang , Mohamed A. Layouni
IPC: B60W30/095 , B60W50/16 , G01S13/931 , G01S17/931 , B60W30/09
Abstract: Methods and systems to implement sensor fusion to determine collision potential for a vehicle include identifying a specific intersection that the vehicle is approaching, and identifying collision potential scenarios associated with one or more paths through the specific intersection. Each collision potential scenario defines a risk of a collision between the vehicle and an object in a specified area. A weight with which one or more information sources of the vehicle are considered is adjusted for each collision potential scenario such that a highest weight is given to one or more of the one or more information sources that provide most relevant and reliable information about the specified area. Sensor fusion is implemented based on the adjusting the weight of the one or more information sources and performing detection based on the sensor fusion, and an alert is provided or actions are implemented according to the detection.
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公开(公告)号：US20210256327A1
公开(公告)日：2021-08-19
申请号：US16790799
申请日：2020-02-14
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Prakash Mohan Peranandam , Erik B. Golm , Meng Jiang , Shengbing Jiang , Jiyu Zhang
Abstract: A system and method for determining the presence of a hidden hazard may include identification of an operational scene for a host vehicle, and identification of an operational situation for the host vehicle. Information from a plurality of proximity sensors is collected and classified. A plurality of hidden hazard presence probabilities corresponding to the information from each of the plurality of proximity sensors, the operational scene, the operational situation, and at least one of a comparative process and a dynamic neural network process are estimated. A fusion process may be performed upon the plurality of hidden hazard presence probabilities to determine the presence of a hidden hazard.
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公开(公告)号：US20210253095A1
公开(公告)日：2021-08-19
申请号：US16791066
申请日：2020-02-14
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Meng Jiang , Jiyu Zhang , Prakash Mohan Peranandam , Mohamed A. Layouni
IPC: B60W30/095 , B60W30/09 , B60W30/18
Abstract: A system and method for predicting a collision between a host vehicle and a target vehicle operating on a multi-lane roadway may include determining the host and target vehicles are converging from respective first and second lanes to a third lane intermediate the first and second lanes. A predetermined set of conditions is evaluated including relationships among the host and target vehicle separations and speeds, and a collision predicted based upon the evaluation.
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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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