Patents by Inventor Zuqin Liu
Zuqin Liu 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).
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Publication number: 20240097248Abstract: A battery may include an enclosure that defines an interior volume, an electrode cell disposed within the interior volume, and a pair of retaining elements. The electrode cell may include a pair of notches formed therein. The pair of retaining elements may be disposed within volumes defined by the pair of notches. The pair of retaining elements may be connected to the enclosure and may be configured to engage with a respective notch of the pair of notches to arrest movement of the electrode cell with respect to the enclosure.Type: ApplicationFiled: September 15, 2022Publication date: March 21, 2024Applicant: Apple Inc.Inventors: Zuqin Liu, Shabab Amiruddin, Aswin Karthik Manohar, Hongxia Zhou
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Publication number: 20240097244Abstract: A battery may include an enclosure and an electrode cell disposed within the enclosure. A first pair of notches may be formed in the enclosure. Each notch of the first pair of notches may include a protrusion that extends into the enclosure. A second pair of notches may be formed in the electrode cell. The first pair of notches may be aligned with the second pair of notches. The protrusions may be configured to engage with the second pair of notches when the cell moves within the enclosure.Type: ApplicationFiled: September 15, 2022Publication date: March 21, 2024Applicant: Apple Inc.Inventors: Zuqin Liu, Shabab Amiruddin, Aswin Karthik Manohar, Hongxia Zhou
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Patent number: 11855279Abstract: 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.Type: GrantFiled: November 11, 2021Date of Patent: December 26, 2023Assignee: Amprius Technologies, Inc.Inventors: Weijie Wang, Zuqin Liu, Song Han, Jonathan Bornstein, Constantin Ionel Stefan
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Patent number: 11626646Abstract: The disclosed technology relates to a battery utilizing a dampening layer to prevent a failure of the battery. The battery includes an enclosure, a set of electrodes enclosed within the enclosure, and a dampening layer disposed within the set of electrodes. The dampening layer partitions the set of electrodes into a first subset of electrodes and a second subset of electrodes. The dampening layer is configured to absorb a mechanical impact on the enclosure to prevent a failure of at least one of the first subset of electrodes and the second subset of electrodes. The dampening layer may be formed at least one of a polymer, metal, and ceramic.Type: GrantFiled: February 10, 2021Date of Patent: April 11, 2023Assignee: Apple Inc.Inventors: Zuqin Liu, Shabab Amiruddin
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Publication number: 20220149379Abstract: Provided are battery electrode structures that maintain high mass loadings (i.e., large amounts per unit area) of high capacity active materials in the electrodes without deteriorating their cycling performance. These mass loading levels correspond to capacities per electrode unit area that are suitable for commercial electrodes even though the active materials are kept thin and generally below their fracture limits. A battery electrode structure may include multiple template layers. An initial template layer may include nanostructures attached to a substrate and have a controlled density. This initial layer may be formed using a controlled thickness source material layer provided, for example, on a substantially inert substrate. Additional one or more template layers are then formed over the initial layer resulting in a multilayer template structure with specific characteristics, such as a surface area, thickness, and porosity.Type: ApplicationFiled: October 4, 2021Publication date: May 12, 2022Inventors: Zuqin Liu, Song Han, Ghyrn E. Loveness
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Publication number: 20220115650Abstract: 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.Type: ApplicationFiled: November 11, 2021Publication date: April 14, 2022Applicant: Amprius, Inc.Inventors: Weijie Wang, Zuqin Liu, Song Han, Jonathan Bornstein, Constantin Ionel Stefan
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Patent number: 11289701Abstract: 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.Type: GrantFiled: May 13, 2020Date of Patent: March 29, 2022Assignee: Amprius, Inc.Inventors: Weijie Wang, Zuqin Liu, Song Han, Jonathan Bornstein, Constantin Ionel Stefan
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Publication number: 20220094005Abstract: The disclosed technology relates to a battery utilizing a dampening layer to prevent a failure of the battery. The battery includes an enclosure, a set of electrodes enclosed within the enclosure, and a dampening layer disposed within the set of electrodes. The dampening layer partitions the set of electrodes into a first subset of electrodes and a second subset of electrodes. The dampening layer is configured to absorb a mechanical impact on the enclosure to prevent a failure of at least one of the first subset of electrodes and the second subset of electrodes. The dampening layer may be formed at least one of a polymer, metal, and ceramic.Type: ApplicationFiled: February 10, 2021Publication date: March 24, 2022Inventors: Zuqin Liu, Shabab Amiruddin
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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
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Patent number: 11223036Abstract: An anode active material comprises a silicon-carbon secondary particle comprising a composite having an exterior conformal carbon coating and formed of type I primary particles. Each type I primary particle comprises a core particle of interconnected silicon, the interconnected silicon formed of nano-sized silicon particles each connected to at least one other particle, inner pores internal to the core particle and defined by the interconnected silicon, an internal carbon coating on internal wall surfaces of the inner pores and a conformal carbon coating on the core particle.Type: GrantFiled: November 18, 2019Date of Patent: January 11, 2022Assignee: Apple Inc.Inventors: Zuqin Liu, Richard M. Mank, Hyea Kim, Hongli Dai, Sunho Kang, Ji-Guang Zhang, Ran Yi, Qiuyan Li, Xiaolin Li, Wu Xu, Rajankumar L. Patel, Hyung-Seok Lim, Chongmin Wang, Langli Luo, Yang He
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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
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Publication number: 20200274156Abstract: 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.Type: ApplicationFiled: May 13, 2020Publication date: August 27, 2020Inventors: Weijie Wang, Zuqin Liu, Song Han, Jonathan Bornstein, Constantin Ionel Stefan
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Patent number: 10707484Abstract: 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.Type: GrantFiled: February 2, 2018Date of Patent: July 7, 2020Assignee: Amprius, Inc.Inventors: Weijie Wang, Zuqin Liu, Song Han, Jonathan Bornstein, Constantin Ionel Stefan
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Publication number: 20200161635Abstract: An anode active material comprises a silicon-carbon secondary particle comprising a composite having an exterior conformal carbon coating and formed of type I primary particles. Each type I primary particle comprises a core particle of interconnected silicon, the interconnected silicon formed of nano-sized silicon particles each connected to at least one other particle, inner pores internal to the core particle and defined by the interconnected silicon, an internal carbon coating on internal wall surfaces of the inner pores and a conformal carbon coating on the core particle.Type: ApplicationFiled: November 18, 2019Publication date: May 21, 2020Inventors: Zuqin Liu, Richard M. Mank, Hyea Kim, Hongli Dai, Sunho Kang, Ji-Guang Zhang, Ran Yi, Qiuyan Li, Xiaolin Li, Wu Xu, Rajankumar L. Patel, Hyung-Seok Lim, Chongmin Wang, Langli Luo, Yang He
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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
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Publication number: 20190088939Abstract: 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.Type: ApplicationFiled: February 2, 2018Publication date: March 21, 2019Inventors: Weijie Wang, Zuqin Liu, Song Han, Jonathan Bornstein, Constantin Ionel Stefan
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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
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Patent number: 10096817Abstract: Provided herein are novel template electrode materials and structures for lithium ion cells. Related methods are also provided. According to various embodiments, an electrode can include a nanostructured template, an electrochemically active material layer coating the template, and a first intermediate layer between the nanostructured template and the electrochemically active material layer. In one arrangement, the nanostructured template includes silicide nanowires. The electrochemically active material may be any of silicon, tin, germanium, carbon, metal hydrides, silicides, phosphides, and nitrides. The first intermediate layer may facilitate adhesion between the nanostructured template and the electrochemically active material layer, electronic conductivity within the electrode, and/or stress relaxation between the nanostructured template and the electrochemically active material layer.Type: GrantFiled: July 2, 2012Date of Patent: October 9, 2018Assignee: Amprius, Inc.Inventors: Ghyrn E. Loveness, Song Han, Zuqin Liu
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Publication number: 20180090755Abstract: Provided are battery electrode structures that maintain high mass loadings (i.e., large amounts per unit area) of high capacity active materials in the electrodes without deteriorating their cycling performance. These mass loading levels correspond to capacities per electrode unit area that are suitable for commercial electrodes even though the active materials are kept thin and generally below their fracture limits. A battery electrode structure may include multiple template layers. An initial template layer may include nanostructures attached to a substrate and have a controlled density. This initial layer may be formed using a controlled thickness source material layer provided, for example, on a substantially inert substrate. Additional one or more template layers are then formed over the initial layer resulting in a multilayer template structure with specific characteristics, such as a surface area, thickness, and porosity.Type: ApplicationFiled: September 1, 2017Publication date: March 29, 2018Inventors: Zuqin Liu, Song Han, Ghyrn E. Loveness
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Patent number: 9923201Abstract: 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.Type: GrantFiled: May 12, 2015Date of Patent: March 20, 2018Assignee: Amprius, Inc.Inventors: Weijie Wang, Zuqin Liu, Song Han, Jonathan Bornstein, Constantin Ionel Stefan