公开(公告)号：US10326142B2

公开(公告)日：2019-06-18

申请号：US14855142

申请日：2015-09-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yan Wu ,  Zhongyi Liu ,  Xiaosong Huang ,  Xingyi Yang

IPC: H01M4/62 ,  H01M4/485 ,  H01M4/04 ,  C01F7/34 ,  C01F7/44 ,  H01M4/13 ,  H01M10/42 ,  H01M10/0525 ,  H01M4/02 ,  H01M4/131 ,  H01M4/1391

Abstract: A positive electrode includes a lithium-based active material, a binder, a conductive filler, and discrete aluminum oxide nanomaterials. The aluminum oxide nanomaterials are mixed, as an additive, throughout the positive electrode with the lithium-based active material, the binder, and the conductive filler. The positive electrode with the discrete aluminum oxide nanomaterials may be incorporated into a lithium ion battery. The aluminum oxide nanomaterials may be formed by the following method. A solution is formed by mixing an aluminum oxide precursor and an acid. A carbon material is added to the solution, thereby forming an aqueous mixture having the carbon material therein. Hydrothermal synthesis is performed using the aqueous mixture, and precursor nanostructures are grown on the carbon material. The precursor nanostructures on the carbon material are annealed so that the carbon material is removed and aluminum oxide nanomaterials are formed.

公开(公告)号：US20250096307A1

公开(公告)日：2025-03-20

申请号：US18499309

申请日：2023-11-01

Applicant: GM Global Technology Operations LLC

Inventor： Dewen Kong ,  Yan Wu ,  Haijing Liu ,  Mark W. Verbrugge

IPC: H01M10/0569 ,  H01M4/02 ,  H01M4/38 ,  H01M4/583 ,  H01M10/0525

Abstract: In an embodiment, an electrolyte includes a lithium salt and a cosolvent, where the cosolvent comprises a cyclic carbonate-containing solvent and a linear carbonate-containing solvent. In an embodiment, a battery includes an anode, a cathode, an electrolyte and a separator. The anode includes an anode current collector and an anode active layer. The anode active layer comprises a lithiated silicon oxide or a combination of lithiated silicon oxide and carbon present in an amount of 20 wt % or greater, based on a total weight of the anode active layer. The cathode includes a cathode current collector and a cathode active layer. The electrolyte includes a lithium salt and a cosolvent that includes a cyclic carbonate-containing solvent and a linear carbonate-containing solvent.

公开(公告)号：US20130175998A1

公开(公告)日：2013-07-11

申请号：US13705775

申请日：2012-12-05

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Tao Wang ,  Tao Xie ,  Yan Wu ,  Xiaosong Huang ,  Chih-Cheng Hsu ,  Mahmoud Abd Elhamid

IPC: H02J7/00

CPC classification number: H02J7/00 ,  H01M6/50 ,  H01M10/44 ,  H01M10/448 ,  H01M10/54 ,  H02J7/0031 ,  H02J7/0063 ,  H02J2007/0067 ,  Y02W30/84

Abstract: Methods and systems for depowering an automotive battery in a controlled manner. The methods comprise (i) providing a depowering medium comprising one or more non-ionic electric conductors (for example, a carbon conductor) dispersed in a substantially non-ionic aqueous medium; (ii) contacting terminals of the battery with the depowering medium; and (iii) maintaining contact between the depowering medium and terminals for a period of time sufficient to depower the battery. The systems comprise (i) the depowering medium; and (ii) a container configured to receive a battery and the depowering medium such that the battery body is contacted with the depowering medium prior to the terminals.

Abstract translation: 以受控的方式为汽车电池提供动力的方法和系统。 所述方法包括（i）提供包含分散在基本上非离子水性介质中的一个或多个非离子电导体（例如，碳导体）的断电介质; （ii）使电池的端子与断电介质接触; 和（iii）在断电介质和端子之间保持足以使电池耗电的时间段的接触。 这些系统包括（i）减肥介质; 以及（ii）被配置为接收电池和所述停电介质的容器，使得所述电池体在所述端子之前与所述断电介质接触。

公开(公告)号：US20190198934A1

公开(公告)日：2019-06-27

申请号：US15850614

申请日：2017-12-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhongyi Liu ,  Xiaosong Huang ,  Yan Wu

IPC: H01M10/0585 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M4/04 ,  H01M10/0569

CPC classification number: H01M10/0585 ,  H01M4/0402 ,  H01M4/0409 ,  H01M4/0419 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/623 ,  H01M4/625 ,  H01M10/0569 ,  H01M2004/027

Abstract: An electrode for a battery is provided. The electrode has a first active layer including a first active material, an interlayer including a conductive material, and a second active layer including a second active material. The interlayer is disposed between the first active layer and the second active layer. Methods for fabricating the electrode are also provided.

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

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/485 ,  H01M4/587 ,  H01M4/133 ,  H01M4/131 ,  H02J7/00 ,  H02P27/08

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.

公开(公告)号：US09312702B2

公开(公告)日：2016-04-12

申请号：US13705775

申请日：2012-12-05

Applicant: GM Global Technology Operations LLC

Inventor： Tao Wang ,  Tao Xie ,  Yan Wu ,  Xiaosong Huang ,  Chih-Cheng Hsu ,  Mahmoud Abd Elhamid

IPC: H02J7/00 ,  H01M10/44 ,  H01M6/50 ,  H01M10/54

CPC classification number: H02J7/00 ,  H01M6/50 ,  H01M10/44 ,  H01M10/448 ,  H01M10/54 ,  H02J7/0031 ,  H02J7/0063 ,  H02J2007/0067 ,  Y02W30/84

Abstract: Methods and systems for depowering an automotive battery in a controlled manner. The methods comprise (i) providing a depowering medium comprising one or more non-ionic electric conductors (for example, a carbon conductor) dispersed in a substantially non-ionic aqueous medium; (ii) contacting terminals of the battery with the depowering medium; and (iii) maintaining contact between the depowering medium and terminals for a period of time sufficient to depower the battery. The systems comprise (i) the depowering medium; and (ii) a container configured to receive a battery and the depowering medium such that the battery body is contacted with the depowering medium prior to the terminals.

Abstract translation: 以受控的方式为汽车电池提供动力的方法和系统。 所述方法包括（i）提供包含分散在基本上非离子水性介质中的一个或多个非离子电导体（例如，碳导体）的断电介质; （ii）使电池的端子与断电介质接触; 和（iii）在断电介质和端子之间保持足以使电池耗电的时间段的接触。 这些系统包括（i）减肥介质; 以及（ii）被配置为接收电池和所述停电介质的容器，使得所述电池体在所述端子之前与所述断电介质接触。

公开(公告)号：US20250158077A1

公开(公告)日：2025-05-15

申请号：US18914372

申请日：2024-10-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dewen KONG ,  Jingyuan Liu ,  Meiyuan Wu ,  Yan Wu ,  Haijing Liu

IPC: H01M4/66 ,  H01M4/02 ,  H01M4/131

Abstract: A cathode electrode includes a multi-functional cathode current collector including a cathode current collector and a layer including a positive temperature coefficient (PTC) material arranged adjacent to the cathode current collector. A cathode active material layer is arranged on the multi-functional cathode current collector and includes a cathode active material including nickel.

公开(公告)号：US20170077520A1

公开(公告)日：2017-03-16

申请号：US14855142

申请日：2015-09-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yan Wu ,  Zhongyi Liu ,  Xiaosong Huang ,  Xingyi Yang

IPC: H01M4/62 ,  C01F7/02 ,  H01M2/16 ,  H01M4/485 ,  H01M4/04

CPC classification number: H01M4/628 ,  C01F7/34 ,  C01F7/441 ,  C01P2004/04 ,  C01P2004/13 ,  C01P2004/16 ,  C01P2006/12 ,  H01M4/0404 ,  H01M4/13 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/621 ,  H01M4/625 ,  H01M10/0525 ,  H01M10/4235 ,  H01M2004/028

Abstract: A positive electrode includes a lithium-based active material, a binder, a conductive filler, and discrete aluminum oxide nanomaterials. The aluminum oxide nanomaterials are mixed, as an additive, throughout the positive electrode with the lithium-based active material, the binder, and the conductive filler. The positive electrode with the discrete aluminum oxide nanomaterials may be incorporated into a lithium ion battery. The aluminum oxide nanomaterials may be formed by the following method. A solution is formed by mixing an aluminum oxide precursor and an acid. A carbon material is added to the solution, thereby forming an aqueous mixture having the carbon material therein. Hydrothermal synthesis is performed using the aqueous mixture, and precursor nanostructures are grown on the carbon material. The precursor nanostructures on the carbon material are annealed so that the carbon material is removed and aluminum oxide nanomaterials are formed.

Abstract translation: 正极包括锂基活性材料，粘合剂，导电填料和离散的氧化铝纳米材料。 氧化铝纳米材料作为添加剂以整个正极与锂基活性材料，粘合剂和导电填料混合。 具有离散氧化铝纳米材料的正极可以并入锂离子电池中。 氧化铝纳米材料可以通过以下方法形成。 通过混合氧化铝前体和酸形成溶液。 向该溶液中加入碳材料，由此形成其中含有碳材料的水性混合物。 使用含水混合物进行水热合成，并在碳材料上生长前体纳米结构。 将碳材料上的前体纳米结构退火，以除去碳材料并形成氧化铝纳米材料。

公开(公告)号：US20160351865A1

公开(公告)日：2016-12-01

申请号：US14722893

申请日：2015-05-27

Applicant: GM Global Technology Operations LLC

Inventor： Anthony Ottomano ,  Qian Lin ,  Yan Wu

IPC: H01M2/06 ,  H01M2/02

CPC classification number: H01M2/06 ,  B32B7/02 ,  B32B7/12 ,  B32B15/08 ,  B32B15/20 ,  B32B27/08 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  B32B2307/206 ,  B32B2307/546 ,  B32B2307/732 ,  B32B2457/10 ,  H01M2/0275 ,  H01M2/0277 ,  H01M2/0285 ,  H01M2/0287

Abstract: Methods and battery cells formed thereby are provided that minimize issues with an exposed metallic layer at the peripheral edge of a flexible laminate forming a battery cell pouch. Sealing the periphery of the pouch is optimized projecting terminals of the electrochemical cell through perforations in the flexible laminate at a folded edge thereof. The folded edge does not present an exposed metallic layer and does not require a sealing material or use of sealing operation complicated by the terminals.

Abstract translation: 提供了方法和由此形成的电池单元，其使形成电池单元袋的柔性层压体的周缘处的暴露的金属层的问题最小化。 密封袋的周边是通过在其折叠边缘处的柔性层压体中的穿孔来优化电化学电池的突出端子。 折叠边缘不存在暴露的金属层，并且不需要密封材料或使用由端子复杂的密封操作。