公开(公告)号：US20170324077A1

公开(公告)日：2017-11-09

申请号：US15527398

申请日：2014-12-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jianyong Liu ,  Su Xiang Deng ,  Xiaohong Q. Gayden

IPC: H01M4/04 ,  H01M4/66 ,  H01M4/62 ,  H01M4/587 ,  H01M4/485 ,  H01M4/1393 ,  H01M10/0525 ,  H01M4/1391

CPC classification number: H01M4/0423 ,  H01M4/13 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/485 ,  H01M4/587 ,  H01M4/622 ,  H01M4/623 ,  H01M4/624 ,  H01M4/625 ,  H01M4/661 ,  H01M4/667 ,  H01M4/668 ,  H01M10/0525

Abstract: Particles of active electrode material for a lithium-ion cell are suspended in an atmospheric plasma-activated gas stream and deposited on a surface of a metal current collector foil having a surface film of an oxide of the metal. The metal oxide film-containing surface of the current collector is pre-coated with a thin layer of an electrically conductive organic polymer composition that serves as a bonding surface for the plasma-applied particles of electrode material. For example, a non-conductive polymer (such as polyvinylidene difluoride) may be filled with carbon particles or copper particles. The polymer layer is typically only a few micrometers in thickness and composed to be compatible with the plasma-applied electrode material particles and to conduct electrons between the oxide film-coated, metal current collector and the deposited electrode layer.

公开(公告)号：US11569525B2

公开(公告)日：2023-01-31

申请号：US16906684

申请日：2020-06-19

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Haijing Liu ,  Zhiqiang Yu ,  Jianyong Liu ,  Xiaochao Que ,  Mark W. Verbrugge

IPC: H01M10/04 ,  H01M10/0525 ,  H01M4/48 ,  H01M4/131 ,  H01M4/485 ,  H01G11/26 ,  H01G11/06 ,  H01G11/28 ,  H01M4/1315 ,  H01G11/30 ,  H01G11/50 ,  H01G11/10 ,  H01M4/136 ,  H01M4/58 ,  H01M4/66 ,  H01G11/52

Abstract: Electrodes are formed with a porous layer of particulate electrode material bonded to each of the two major sides of a compatible metal current collector. In one embodiment, opposing electrodes are formed with like lithium-ion battery anode materials or like cathode materials or capacitor materials on both sides of the current collector. In another embodiment, a battery electrode material is applied to one side of a current collector and capacitor material is applied to the other side. In general, the electrodes are formed by combining a suitable grouping of capacitor layers with un-equal numbers of anode and cathode battery layers. One or more pairs of opposing electrodes are assembled to provide a combination of battery and capacitor energy and power properties in a hybrid electrochemical cell. The cells may be formed by stacking or winding rolls of the opposing electrodes with interposed separators.

公开(公告)号：US10693176B2

公开(公告)日：2020-06-23

申请号：US15221963

申请日：2016-07-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Haijing Liu ,  Zhiqiang Yu ,  Jianyong Liu ,  Xiaochao Que ,  Mark W. Verbrugge

IPC: H01M10/04 ,  H01M10/0525 ,  H01M4/131 ,  H01M4/136 ,  H01M4/485 ,  H01M4/58 ,  H01M4/66 ,  H01G11/28 ,  H01G11/52 ,  H01M4/1315 ,  H01G11/26 ,  H01M4/48 ,  H01G11/30 ,  H01G11/50 ,  H01G11/06 ,  H01G11/10

Abstract: Electrodes are formed with a porous layer of particulate electrode material bonded to each of the two major sides of a compatible metal current collector. In one embodiment, opposing electrodes are formed with like lithium-ion battery anode materials or like cathode materials or capacitor materials on both sides of the current collector. In another embodiment, a battery electrode material is applied to one side of a current collector and capacitor material is applied to the other side. In general, the electrodes are formed by combining a suitable grouping of capacitor layers with un-equal numbers of anode and cathode battery layers. One or more pairs of opposing electrodes are assembled to provide a combination of battery and capacitor energy and power properties in a hybrid electrochemical cell. The cells may be formed by stacking or winding rolls of the opposing electrodes with interposed separators.

公开(公告)号：US20180034094A1

公开(公告)日：2018-02-01

申请号：US15221963

申请日：2016-07-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Haijing Liu ,  Zhiqiang Yu ,  Jianyong Liu ,  Xiaochao Que ,  Mark W. Verbrugge

IPC: H01M10/04 ,  H01M4/66 ,  H01M4/131 ,  H01G11/28 ,  H01M4/485 ,  H01M4/58 ,  H01G11/52 ,  H01M10/0525 ,  H01M4/136

Abstract: Electrodes are formed with a porous layer of particulate electrode material bonded to each of the two major sides of a compatible metal current collector. In one embodiment, opposing electrodes are formed with like lithium-ion battery anode materials or like cathode materials or capacitor materials on both sides of the current collector. In another embodiment, a battery electrode material is applied to one side of a current collector and capacitor material is applied to the other side. In general, the electrodes are formed by combining a suitable grouping of capacitor layers with un-equal numbers of anode and cathode battery layers. One or more pairs of opposing electrodes are assembled to provide a combination of battery and capacitor energy and power properties in a hybrid electrochemical cell. The cells may be formed by stacking or winding rolls of the opposing electrodes with interposed separators.

公开(公告)号：US20170098817A1

公开(公告)日：2017-04-06

申请号：US15311862

申请日：2014-05-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhiqiang Yu ,  Meiyuan Yu ,  Xiaochao Que ,  Jianyong Liu

IPC: H01M4/04 ,  H01M4/1391 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/62 ,  H01M4/66 ,  H01M4/131 ,  H01M4/525

CPC classification number: H01M4/0404 ,  H01M4/131 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/505 ,  H01M4/525 ,  H01M4/623 ,  H01M4/625 ,  H01M4/661 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2220/20

Abstract: Improved electrodes for lithium battery cells are made by coating micrometer-size anode or cathode material particles with aggregates of smaller conductive carbon black particles in two mixing steps, using a liquid dispersant in each step for the mixing particles. A first portion of carbon black is vigorously mixed with the electrode particles to coat their surfaces with the smaller carbon black particles. A second portion of carbon black is less vigorously mixed with the initially coated electrode particles to form clusters of carbon black particles at the interfaces of the previously coated electrode particles. This two-step distribution of carbon black particles increases the power capacity of the porous electrode layer bonded to its current collector and increases the life of its battery cell.

公开(公告)号：US20170058389A1

公开(公告)日：2017-03-02

申请号：US15308860

申请日：2014-05-12

Applicant: Jianyong LIU ,  GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xiaohong Q. Gayden ,  Jianyong Liu ,  Zhiqiang Yu ,  Haijing Liu ,  Qiang Wu

IPC: C23C4/134 ,  H01M10/0525 ,  C23C4/11 ,  H01M4/04 ,  H01M4/62 ,  H01M4/133 ,  H01M4/134 ,  H01M4/131 ,  C23C4/06 ,  H01M4/66

CPC classification number: C23C4/134 ,  C23C4/01 ,  C23C4/06 ,  C23C4/11 ,  H01M4/0404 ,  H01M4/0407 ,  H01M4/0419 ,  H01M4/0421 ,  H01M4/13 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/139 ,  H01M4/364 ,  H01M4/621 ,  H01M4/626 ,  H01M4/661 ,  H01M10/0436 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0585 ,  H01M2220/20

Abstract: A first atmospheric plasma producing nozzle is used to direct a gas-borne stream of plasma heated and activated particles of lithium battery electrode material for deposition on a surface of lithium cell member, such as a separator or current collector foil. A second atmospheric plasma producing nozzle is used to direct a gas-borne stream of plasma heated and activated metal particles at the same surface area being coated with the stream of electrode material particles. The two plasma streams are combined at the cell member surface to form a layer of electrically-conductive metal-bonded particles of electrode material. The use of multiple atmospheric plasma streams is useful in making thin, efficient, and lower cost electrode structures for lithium batteries.

Abstract translation: 第一大气等离子体产生喷嘴用于引导锂离子电池电极材料的等离子体加热和活化的颗粒的气体流，以便沉积在诸如隔膜或集电箔之类的锂电池构件的表面上。 使用第二大气等离子体产生喷嘴来引导等离子体加热和活化的金属颗粒的气体流在被电极材料颗粒流涂覆的相​​同表面区域。 两个等离子体流在电池元件表面处组合以形成电极材料的导电金属键合颗粒层。 使用多个大气等离子体流可用于制造用于锂电池的薄的，有效的和较低成本的电极结构。