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1. 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.

2. 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。

3. 发明申请

US20190181489A1 INTERMEDIATE LAYERS FOR ELECTRODE FABRICATION 审中-公开
公开(公告)号：US20190181489A1
公开(公告)日：2019-06-13
申请号：US16181133
申请日：2018-11-05
申请人： Amprius, Inc.
发明人： William S. Delhagen , Rainer J. Fasching , Ghyrn E. Loveness , Song Han , Eugene M. Berdichevsky , Constantin Ionel Stefan , Yi Cui , Mark C. Platshon
IPC分类号： H01M10/052 , H01M4/66 , H01M4/36 , H01M4/13 , H01M4/134
摘要： Provided are novel electrodes for use in lithium ion batteries. An electrode includes one or more intermediate layers positioned between a substrate and an electrochemically active material. Intermediate layers may be made from chromium, titanium, tantalum, tungsten, nickel, molybdenum, lithium, as well as other materials and their combinations. An intermediate layer may protect the substrate, help to redistribute catalyst during deposition of the electrochemically active material, improve adhesion between the active material and substrate, and other purposes. In certain embodiments, an active material includes one or more high capacity active materials, such as silicon, tin, and germanium. These materials tend to swell during cycling and may loose mechanical and/or electrical connection to the substrate. A flexible intermediate layer may compensate for swelling and provide a robust adhesion interface. Provided also are novel methods of fabricating electrodes containing one or more intermediate layers.

4. 发明申请

US20220020979A1 TEMPLATE ELECTRODE STRUCTURES FOR DEPOSITING ACTIVE MATERIALS 有权
公开(公告)号：US20220020979A1
公开(公告)日：2022-01-20
申请号：US17323575
申请日：2021-05-18
申请人： Amprius, Inc.
发明人： Ghyrn E. Loveness , William S. Delhagen , Rainer J. Fasching , Song Han , Zuqin Liu
IPC分类号： H01M4/36 , H01M4/38 , H01M4/04 , H01M4/134 , H01M4/1395 , H01M4/66 , H01M4/75 , H01M4/136 , H01M4/58
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.

5. 发明授权

US10038219B2 Electrolytes for rechargeable batteries 有权
公开(公告)号：US10038219B2
公开(公告)日：2018-07-31
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： H01M4/134 , H01M10/0569 , B82Y30/00 , H01M4/04 , H01M4/38 , H01M4/48 , H01M10/052 , H01M4/36 , H01M4/75 , H01M10/0525 , H01M10/0568
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.

6. 发明授权

US11121396B2 Intermediate layers for electrode fabrication 有权
公开(公告)号：US11121396B2
公开(公告)日：2021-09-14
申请号：US16181133
申请日：2018-11-05
申请人： Amprius, Inc.
发明人： William S. Delhagen , Rainer J. Fasching , Ghyrn E. Loveness , Song Han , Eugene M. Berdichevsky , Constantin Ionel Stefan , Yi Cui , Mark C. Platshon
IPC分类号： H01M4/00 , H01M10/052 , H01M4/13 , H01M4/134 , H01M4/36 , H01M4/66 , H01M4/1395
摘要： An electrode includes one or more intermediate layers positioned between a substrate and an electrochemically active material. Intermediate layers may be made from chromium, titanium, tantalum, tungsten, nickel, molybdenum, lithium, as well as other materials and their combinations. In certain embodiments, an active material includes one or more high capacity active materials, such as silicon, tin, and germanium. These materials tend to swell during cycling and may loose mechanical and/or electrical connection to the substrate. A flexible intermediate layer may compensate for swelling and provide a robust adhesion interface. Methods of fabricating electrodes involve forming metal silicide nanostructures.

7. 发明授权

US09698410B2 Composite structures containing high capacity porous active materials constrained in shells 有权
公开(公告)号：US09698410B2
公开(公告)日：2017-07-04
申请号：US14928576
申请日：2015-10-30
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 , H01M4/1393 , H01M4/1395 , H01M4/36 , H01M4/62 , H01M10/052 , H01M4/38 , H01M4/58 , H01M10/0525 , 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.

8. 发明申请

US20160064725A1 COMPOSITE STRUCTURES CONTAINING HIGH CAPACITY POROUS ACTIVE MATERIALS CONSTRAINED IN SHELLS 有权
标题翻译：包含高容量多孔活性材料的复合结构
公开(公告)号：US20160064725A1
公开(公告)日：2016-03-03
申请号：US14928576
申请日：2015-10-30
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 , H01M10/0525
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.
摘要翻译：提供了包含形成多孔基底结构的高容量活性材料的新型电极材料复合结构。结构还包括封装这些多孔基底结构的壳。在活性物质的锂化期间，壳体机械地约束多孔基底结构。壳体允许锂离子通过，但是防止电解质溶剂与包封的活性材料相互作用。在某些实施方案中，壳包含碳，而多孔基底结构包含硅。虽然硅在锂化期间趋向于膨胀，但是壳体内的基础结构和/或空隙空间的孔隙度有助于在壳体内容纳该附加体积而不破坏壳体或基本上增加复合结构体的整体尺寸。这允许将复合结构集成到各种类型的电池电极中并循环高容量活性材料，而不损害电极的内部结构和劣化电池的循环特性。

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