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11. 发明授权

US10811675B2 Electrode including nanostructures for rechargeable cells 有权
公开(公告)号：US10811675B2
公开(公告)日：2020-10-20
申请号：US16109609
申请日：2018-08-22
申请人： Amprius, Inc.
发明人： Yi Cui , Song Han , Mark C. Platshon
IPC分类号： H01M4/134 , H01M4/1395 , H01M4/36 , H01M4/66 , H01M4/75 , H01M4/02 , H01M10/0525
摘要： A lithium ion battery electrode includes silicon nanowires used for insertion of lithium ions and including a conductivity enhancement, the nanowires growth-rooted to the conductive substrate.

12. 发明授权

US10707484B2 Structurally controlled deposition of silicon onto nanowires 有权
公开(公告)号：US10707484B2
公开(公告)日：2020-07-07
申请号：US15887809
申请日：2018-02-02
申请人： Amprius, Inc.
发明人： Weijie Wang , Zuqin Liu , Song Han , Jonathan Bornstein , Constantin Ionel Stefan
IPC分类号： H01M4/04 , H01M4/134 , H01M4/1395 , H01M4/36 , H01M4/38 , H01M10/052 , H01M10/0525 , H01M4/02
摘要： Provided herein are nanostructures for lithium ion battery electrodes and methods of fabrication. In some embodiments, a nanostructure template coated with a silicon coating is provided. The silicon coating may include a non-conformal, more porous layer and a conformal, denser layer on the non-conformal, more porous layer. In some embodiments, two different deposition processes, e.g., a PECVD layer to deposit the non-conformal layer and a thermal CVD process to deposit the conformal layer, are used. Anodes including the nanostructures have longer cycle lifetimes than anodes made using either a PECVD or thermal CVD method alone.

13. 发明授权

US09692056B1 Dual current collectors for battery electrodes 有权
公开(公告)号：US09692056B1
公开(公告)日：2017-06-27
申请号：US13863358
申请日：2013-04-15
申请人： Amprius, Inc.
发明人： Zuqin Liu , Song Han
IPC分类号： H01M4/58 , H01M4/64 , H01M4/04 , H01M4/66 , H01M4/36 , H01M4/75 , H01M4/42 , H01M4/72 , H01M4/136 , H01M4/13 , H01M4/38 , H01M4/1395
CPC分类号： H01M4/64 , H01M4/0402 , H01M4/0416 , H01M4/0428 , H01M4/045 , H01M4/13 , H01M4/134 , H01M4/136 , H01M4/1395 , H01M4/366 , H01M4/38 , H01M4/386 , H01M4/387 , H01M4/42 , H01M4/58 , H01M4/66 , H01M4/661 , H01M4/663 , H01M4/667 , H01M4/70 , H01M4/72 , H01M4/75
摘要： Batteries having improved current collection are provided. In some implementations, an electrode structure of a battery may include an active material and two or more current collectors in electrical communication with the active material. In some implementations, an electrode structure of a battery may include two or more current collector layers. According to various implementations, the electrode structure may or may not include a current collector substrate. In some implementations, a battery anode includes a current collector substrate in electronic contact with nanostructured active material. In order to ensure that electronic communication between the active material and the current collector substrate is maintained throughout the life of the battery, a second electronically conductive path is provided in the form of a current collector layer over the nanostructured active material. The additional layer is thin and electronically conductive, and does not interfere adversely with battery operation.

14. 发明申请

US20160190600A1 INTERCONNECTED HOLLOW NANOSTRUCTURES CONTAINING HIGH CAPACITY ACTIVE MATERIALS FOR USE IN RECHARGEABLE BATTERIES 审中-公开
公开(公告)号：US20160190600A1
公开(公告)日：2016-06-30
申请号：US14952744
申请日：2015-11-25
申请人： Amprius, Inc.
发明人： Yi Cui , Song Han , Ghyrn E. Loveness
IPC分类号： H01M4/70 , H01M4/04 , H01M4/133 , H01M10/0525 , H01M4/134
CPC分类号： H01M10/0525 , B82Y30/00 , B82Y40/00 , H01M4/04 , H01M4/0402 , H01M4/043 , H01M4/0438 , H01M4/0471 , H01M4/049 , H01M4/0492 , H01M4/133 , H01M4/134 , H01M4/38 , H01M4/386 , H01M4/387 , H01M2004/021 , H01M2004/022 , H01M2004/027 , Y02E60/122
摘要： Provided are electrode layers for use in rechargeable batteries, such as lithium ion batteries, and related fabrication techniques. These electrode layers have interconnected hollow nanostructures that contain high capacity electrochemically active materials, such as silicon, tin, and germanium. In certain embodiments, a fabrication technique involves forming a nanoscale coating around multiple template structures and at least partially removing and/or shrinking these structures to form hollow cavities. These cavities provide space for the active materials of the nanostructures to swell into during battery cycling. This design helps to reduce the risk of pulverization and to maintain electrical contacts among the nanostructures. It also provides a very high surface area available ionic communication with the electrolyte. The nanostructures have nanoscale shells but may be substantially larger in other dimensions. Nanostructures can be interconnected during forming the nanoscale coating, when the coating formed around two nearby template structures overlap.

15. 发明申请

US20130320582A1 INTERCONNECTED HOLLOW NANOSTRUCTURES CONTAINING HIGH CAPACITY ACTIVE MATERIALS FOR USE IN RECHARGEABLE BATTERIES 有权
标题翻译：包含高容量活性材料的互连中空纳米结构用于可充电电池
公开(公告)号：US20130320582A1
公开(公告)日：2013-12-05
申请号：US13891035
申请日：2013-05-09
申请人： Amprius, Inc.
发明人： Yi Cui , Song Han , Ghyrn E. Loveness
IPC分类号： H01M4/04
CPC分类号： H01M4/70 , B82Y30/00 , B82Y40/00 , H01M4/04 , H01M4/0402 , H01M4/043 , H01M4/0438 , H01M4/0471 , H01M4/049 , H01M4/0492 , H01M4/133 , H01M4/134 , H01M4/38 , H01M4/386 , H01M4/387 , H01M10/0525 , H01M2004/021 , H01M2004/022 , H01M2004/027 , Y02E60/122
摘要： Provided are electrode layers for use in rechargeable batteries, such as lithium ion batteries, and related fabrication techniques. These electrode layers have interconnected hollow nanostructures that contain high capacity electrochemically active materials, such as silicon, tin, and germanium. In certain embodiments, a fabrication technique involves forming a nanoscale coating around multiple template structures and at least partially removing and/or shrinking these structures to form hollow cavities. These cavities provide space for the active materials of the nanostructures to swell into during battery cycling. This design helps to reduce the risk of pulverization and to maintain electrical contacts among the nanostructures. It also provides a very high surface area available ionic communication with the electrolyte. The nanostructures have nanoscale shells but may be substantially larger in other dimensions. Nanostructures can be interconnected during forming the nanoscale coating, when the coating formed around two nearby template structures overlap.
摘要翻译：提供了用于可再充电电池的电极层，例如锂离子电池以及相关制造技术。这些电极层具有互连的中空纳米结构，其包含高容量的电化学活性材料，例如硅，锡和锗。在某些实施例中，制造技术包括围绕多个模板结构形成纳米级涂层，并且至少部分地去除和/或收缩这些结构以形成中空腔。这些空穴为纳米结构的活性材料在电池循环过程中提供空间。该设计有助于降低粉碎的风险并保持纳米结构之间的电接触。它还提供了与电解质的非常高的表面积可用的离子连通。纳米结构具有纳米尺寸的壳，但在其它尺寸上可能显着更大。当形成纳米尺度涂层时，当围绕两个附近的模板结构形成的涂层重叠时，纳米结构可以相互连接。

16. 发明申请

US20190273252A1 TEMPLATE ELECTRODE STRUCTURES FOR DEPOSITING ACTIVE MATERIALS 审中-公开
公开(公告)号：US20190273252A1
公开(公告)日：2019-09-05
申请号：US16264456
申请日：2019-01-31
申请人： Amprius, Inc.
发明人： Ghyrn E. Loveness , William S. Delhagen , Rainer Fasching , Song Han , Zuqin Liu
IPC分类号： H01M4/36 , H01M4/38 , H01M4/75 , H01M4/04 , H01M4/134 , H01M4/1395 , H01M4/58 , H01M4/136 , H01M4/66
摘要： Provided are examples of electrochemically active electrode materials, electrodes using such materials, and methods of manufacturing such electrodes. Electrochemically active electrode materials may include a high surface area template containing a metal silicide and a layer of high capacity active material deposited over the template. The template may serve as a mechanical support for the active material and/or an electrical conductor between the active material and, for example, a substrate. Due to the high surface area of the template, even a thin layer of the active material can provide sufficient active material loading and corresponding battery capacity. As such, a thickness of the layer may be maintained below the fracture threshold of the active material used and preserve its structural integrity during battery cycling.

17. 发明授权

US09923201B2 Structurally controlled deposition of silicon onto nanowires 有权
公开(公告)号：US09923201B2
公开(公告)日：2018-03-20
申请号：US14710103
申请日：2015-05-12
申请人： Amprius, Inc.
发明人： Weijie Wang , Zuqin Liu , Song Han , Jonathan Bornstein , Constantin Ionel Stefan
IPC分类号： H01M4/38 , H01M4/36 , H01M4/134 , H01M10/0525 , H01M4/04 , H01M4/1395 , H01M4/02 , H01M10/052
CPC分类号： H01M4/386 , H01M4/0428 , H01M4/134 , H01M4/1395 , H01M4/366 , H01M10/052 , H01M10/0525 , H01M2004/027
摘要： Provided herein are nanostructures for lithium ion battery electrodes and methods of fabrication. In some embodiments, a nanostructure template coated with a silicon coating is provided. The silicon coating may include a non-conformal, more porous layer and a conformal, denser layer on the non-conformal, more porous layer. In some embodiments, two different deposition processes, e.g., a PECVD layer to deposit the non-conformal layer and a thermal CVD process to deposit the conformal layer, are used. Anodes including the nanostructures have longer cycle lifetimes than anodes made using either a PECVD or thermal CVD method alone.

18. 发明申请

US20170338464A1 COMPOSITE STRUCTURES CONTAINING HIGH CAPACITY POROUS ACTIVE MATERIALS CONSTRAINED IN SHELLS 审中-公开
公开(公告)号：US20170338464A1
公开(公告)日：2017-11-23
申请号：US15608829
申请日：2017-05-30
申请人： Amprius, Inc.
发明人： Rainer J. Fasching , Zuqin Liu , Song Han , Ghyrn E. Loveness , Constantin I. Stefan
IPC分类号： H01M4/04 , H01M4/133 , H01M4/134 , H01M10/0525 , H01M10/052 , H01M4/58 , H01M4/36 , H01M4/1395 , H01M4/1393 , H01M4/38 , H01M4/62 , H01M4/02 , H01M10/52
CPC分类号： H01M4/0404 , H01M4/0428 , H01M4/0471 , H01M4/049 , H01M4/133 , H01M4/134 , H01M4/1393 , H01M4/1395 , H01M4/364 , H01M4/366 , H01M4/386 , H01M4/387 , H01M4/58 , H01M4/625 , H01M10/052 , H01M10/0525 , H01M10/52 , H01M2004/021 , H01M2004/027 , H01M2220/30 , Y02E60/122
摘要： Provided are novel electrode material composite structures containing high capacity active materials formed into porous base structures. The structures also include shells that encapsulate these porous base structures. During lithiation of the active material, the shell mechanically constrains the porous base structure. The shell allows lithium ions to pass through but prevents electrolyte solvents from interacting with the encapsulated active material. In certain embodiments, the shell contains carbon, while the porous base structure contains silicon. Although silicon tends to swell during lithiation, the porosity of the base structure and/or void spaces inside the shell helps to accommodate this additional volume within the shell without breaking it or substantially increasing the overall size of the composite structure. This allows integration of the composite structures into various types of battery electrodes and cycling high capacity active materials without damaging the electrodes' internal structures and deteriorating cycling characteristics of batteries.

19. 发明授权

US09287560B2 Silicon-embedded copper nanostructure network for high energy storage 有权
标题翻译：硅嵌入式铜纳米结构网络，用于高能量存储
公开(公告)号：US09287560B2
公开(公告)日：2016-03-15
申请号：US14255418
申请日：2014-04-17
申请人： Amprius, Inc.
发明人： Tianyue Yu
IPC分类号： H01L29/47 , H01M4/36 , H01M4/38 , H01M4/134 , H01M4/02
CPC分类号： H01M4/366 , B82Y30/00 , H01M4/134 , H01M4/1395 , H01M4/38 , H01M4/386 , H01M4/387 , H01M4/483 , H01M4/622 , H01M4/624 , H01M4/626 , H01M10/052 , H01M10/0525 , H01M2004/021
摘要： Provided herein are nanostructure networks having high energy storage, electrochemically active electrode materials including nanostructure networks having high energy storage, as well as electrodes and batteries including the nanostructure networks having high energy storage. According to various implementations, the nanostructure networks have high energy density as well as long cycle life. In some implementations, the nanostructure networks include a conductive network embedded with electrochemically active material. In some implementations, silicon is used as the electrochemically active material. The conductive network may be a metal network such as a copper nanostructure network. Methods of manufacturing the nanostructure networks and electrodes are provided. In some implementations, metal nanostructures can be synthesized in a solution that contains silicon powder to make a composite network structure that contains both. The metal nanostructure growth can nucleate in solution and on silicon nanostructure surfaces.
摘要翻译：本文提供了具有高能量存储的纳米结构网络，包括具有高能量存储的纳米结构网络的电化学活性电极材料，以及包括具有高能量存储的纳米结构网络的电极和电池。根据各种实施方案，纳米结构网络具有高能量密度以及较长的循环寿命。在一些实施方案中，纳米结构网络包括嵌入电化学活性材料的导电网络。在一些实施方案中，硅用作电化学活性材料。导电网络可以是诸如铜纳米结构网络的金属网络。提供了制造纳米结构网络和电极的方法。在一些实施方案中，金属纳米结构可以在含有硅粉末的溶液中合成，以形成包含两者的复合网络结构。金属纳米结构生长可以在溶液和硅纳米结构表面上成核。

20. 发明申请

US20160049693A1 ELECTROLYTES FOR RECHARGEABLE BATTERIES 审中-公开
标题翻译：电解电容器可充电电池
公开(公告)号：US20160049693A1
公开(公告)日：2016-02-18
申请号：US14831697
申请日：2015-08-20
申请人： Amprius, Inc.
发明人： Gregory Alan Roberts , Rainer J. Fasching , Constantin I. Stefan
IPC分类号： H01M10/0569 , H01M10/0525 , H01M4/75 , H01M4/38 , H01M4/36
CPC分类号： H01M10/0569 , B82Y30/00 , H01M4/0428 , H01M4/134 , H01M4/366 , H01M4/386 , H01M4/483 , H01M4/75 , H01M10/052 , H01M10/0525 , H01M10/0568 , H01M2300/0034 , H01M2300/0037 , Y02E60/122
摘要： Provided are novel electrolytes for use in rechargeable lithium ion cells containing high capacity active materials, such as silicon, germanium, tin, and/or aluminum. These novel electrolytes include one or more pyrocarbonates and, in certain embodiments, one or more fluorinated carbonates. For example, dimethyl pyrocarbonate (DMPC) may be combine with mono-fluoroethylene carbonate (FEC). Alternatively, DMPC or other pyrocarbonates may be used without any fluorinated carbonates. A weight ratio of pyrocarbonates may be between about 0% and 50%, for example, about 10%. Pyrocarbonates may be combined with other solvents, such as ethylene carbonate (EC), propylene carbonate (PC), dimethyl carbonate (DMC), diethyl carbonate (DEC), and/or ethyl-methyl carbonate (EMC). Alternatively, pyrocarbonates may be used without such solvents. Experimental results conducted using electrochemical cells with silicon based electrodes demonstrated substantial improvements in cycle life when pyrocarbonate containing electrolytes were used in comparison with pyrocarbonate free electrolytes.
摘要翻译：提供了用于可再充电锂离子电池的新型电解质，其包含高容量活性材料，例如硅，锗，锡和/或铝。这些新型电解质包括一种或多种热解碳酸盐，并且在某些实施方案中包括一种或多种氟化碳酸盐。例如，焦碳酸二甲酯（DMPC）可以与单氟代碳酸亚乙酯（FEC）组合。或者，可以使用DMPC或其它焦碳酸酯而没有任何氟化碳酸酯。焦碳酸酯的重量比可以在约0％至50％之间，例如约10％。焦碳酸酯可以与其它溶剂如碳酸亚乙酯（EC），碳酸亚丙酯（PC），碳酸二甲酯（DMC），碳酸二乙酯（DEC）和/或碳酸甲乙酯（EMC）等组合。或者，可以使用焦碳酸酯而不使用这些溶剂。使用具有硅基电极的电化学电池进行的实验结果表明，当使用含焦碳酸盐的电解质与无焦碳酸盐电解质相比时，循环寿命显着改善。

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