Patents by Inventor William S. DelHagen
William S. DelHagen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20220020979Abstract: 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.Type: ApplicationFiled: May 18, 2021Publication date: January 20, 2022Inventors: Ghyrn E. Loveness, William S. Delhagen, Rainer J. Fasching, Song Han, Zuqin Liu
-
Patent number: 11121396Abstract: 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.Type: GrantFiled: November 5, 2018Date of Patent: September 14, 2021Assignee: Amprius, Inc.Inventors: William S. Delhagen, Rainer J. Fasching, Ghyrn E. Loveness, Song Han, Eugene M. Berdichevsky, Constantin Ionel Stefan, Yi Cui, Mark C. Platshon
-
Patent number: 11024841Abstract: 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.Type: GrantFiled: January 31, 2019Date of Patent: June 1, 2021Assignee: Amprius, Inc.Inventors: Ghyrn E. Loveness, William S. Delhagen, Rainer Fasching, Song Han, Zuqin Liu
-
Publication number: 20190273252Abstract: 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.Type: ApplicationFiled: January 31, 2019Publication date: September 5, 2019Inventors: Ghyrn E. Loveness, William S. Delhagen, Rainer Fasching, Song Han, Zuqin Liu
-
Publication number: 20190181489Abstract: 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.Type: ApplicationFiled: November 5, 2018Publication date: June 13, 2019Inventors: William S. Delhagen, Rainer J. Fasching, Ghyrn E. Loveness, Song Han, Eugene M. Berdichevsky, Constantin Ionel Stefan, Yi Cui, Mark C. Platshon
-
Patent number: 10230101Abstract: 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.Type: GrantFiled: September 18, 2015Date of Patent: March 12, 2019Assignee: Amprius, Inc.Inventors: Ghyrn E. Loveness, William S. Delhagen, Rainer Fasching, Song Han, Zuqin Liu
-
Publication number: 20160013483Abstract: 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.Type: ApplicationFiled: September 18, 2015Publication date: January 14, 2016Inventors: Ghyrn E. Loveness, William S. Delhagen, Rainer Fasching, Song Han, Zuqin Liu
-
Patent number: 9172094Abstract: 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.Type: GrantFiled: June 10, 2013Date of Patent: October 27, 2015Assignee: Amprius, Inc.Inventors: Ghyrn E. Loveness, William S. DelHagen, Rainer Fasching, Song Han, Zuqin Liu
-
Patent number: 8637185Abstract: Provided are conductive substrates having open structures and fractional void volumes of at least about 25% or, more specifically, or at least about 50% for use in lithium ion batteries. Nanostructured active materials are deposited over such substrates to form battery electrodes. The fractional void volume may help to accommodate swelling of some active materials during cycling. In certain embodiments, overall outer dimensions of the electrode remain substantially the same during cycling, while internal open spaces of the conductive substrate provide space for any volumetric changes in the nanostructured active materials. In specific embodiments, a nanoscale layer of silicon is deposited over a metallic mesh to form a negative electrode. In another embodiment, a conductive substrate is a perforated sheet with multiple openings, such that a nanostructured active material is deposited into the openings but not on the external surfaces of the sheet.Type: GrantFiled: November 11, 2010Date of Patent: January 28, 2014Assignee: Amprius, Inc.Inventors: Eugene M. Berdichevsky, Song Han, Yi Cui, Rainer J. Fasching, Ghyrn E. Loveness, William S. DelHagen, Mark C. Platshon
-
Publication number: 20130344383Abstract: 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.Type: ApplicationFiled: June 10, 2013Publication date: December 26, 2013Applicant: Amprius, Inc.Inventors: Ghyrn E. Loveness, William S. DelHagen, Rainer Fasching, Song Han, Zuqin Liu
-
Patent number: 8556996Abstract: 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.Type: GrantFiled: August 1, 2012Date of Patent: October 15, 2013Assignee: Amprius, Inc.Inventors: Ghyrn E. Loveness, William S. DelHagen, Rainer Fasching, Song Han, Zuqin Liu
-
Publication number: 20120301789Abstract: 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.Type: ApplicationFiled: August 1, 2012Publication date: November 29, 2012Applicant: AMPRIUS, INC.Inventors: Ghyrn E. Loveness, William S. DelHagen, Rainer Fasching, Song Han, Zuqin Liu
-
Patent number: 8257866Abstract: 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.Type: GrantFiled: March 2, 2011Date of Patent: September 4, 2012Assignee: Amprius, Inc.Inventors: Ghyrn E. Loveness, William S. DelHagen, Rainer Fasching, Song Han, Zuqin Liu
-
Publication number: 20110229761Abstract: Provided are various examples of lithium electrode subassemblies, lithium ion cells using such subassemblies, and methods of fabricating such subassemblies. Methods generally include receiving nanostructures containing electrochemically active materials and interconnecting at least a portion of these nanostructures. Interconnecting may involve depositing one or more interconnecting materials, such as amorphous silicon and/or metal containing materials. Interconnecting may additionally or alternatively involve treating a layer containing the nanostructures using various techniques, such as compressing the layer, heating the layer, and/or passing an electrical current through the layer. These methods may be used to interconnect nanostructures containing one or more high capacity materials, such as silicon, germanium, and tin, and having various shapes or forms, such as nanowires, nanoparticles, and nano-flakes.Type: ApplicationFiled: March 22, 2011Publication date: September 22, 2011Applicant: AMPRIUS, INC.Inventors: Yi Cui, Song Han, Ghyrn E. Loveness, Rainer Fasching, William S. DelHagen, Eugene M. Berdichevsky
-
Publication number: 20110159365Abstract: 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.Type: ApplicationFiled: March 2, 2011Publication date: June 30, 2011Applicant: AMPRIUS, INC.Inventors: Ghyrn E. Loveness, William S. DelHagen, Rainer Fasching, Song Han, Zuqin Liu
-
Publication number: 20110111300Abstract: 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.Type: ApplicationFiled: November 11, 2010Publication date: May 12, 2011Applicant: AMPRIUS INC.Inventors: William S. DelHagen, Rainer J. Fasching, Ghyrn E. Loveness, Song Han, Eugene M. Berdichevsky, Constantin I. Stefan, Yi Cui, Mark C. Platshon
-
Publication number: 20110111296Abstract: Provided are conductive substrates having open structures and fractional void volumes of at least about 25% or, more specifically, or at least about 50% for use in lithium ion batteries. Nanostructured active materials are deposited over such substrates to form battery electrodes. The fractional void volume may help to accommodate swelling of some active materials during cycling. In certain embodiments, overall outer dimensions of the electrode remain substantially the same during cycling, while internal open spaces of the conductive substrate provide space for any volumetric changes in the nanostructured active materials. In specific embodiments, a nanoscale layer of silicon is deposited over a metallic mesh to form a negative electrode. In another embodiment, a conductive substrate is a perforated sheet with multiple openings, such that a nanostructured active material is deposited into the openings but not on the external surfaces of the sheet.Type: ApplicationFiled: November 11, 2010Publication date: May 12, 2011Applicant: AMPRIUS, INC.Inventors: Eugene M. Berdichevsky, Song Han, Yi Cui, Rainer J. Fasching, Ghyrn E. Loveness, William S. DelHagen, Mark C. Platshon