Patents by Inventor Yet-Ming Chiang
Yet-Ming Chiang 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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Patent number: 8617745Abstract: A lithium-ion battery is provided that has a fast charge and discharge rate capability and low rate of capacity fade during high rate cycling. The battery can exhibit low impedance growth and other properties allowing for its use in hybrid electric vehicle applications and other applications where high power and long battery life are important features.Type: GrantFiled: September 11, 2006Date of Patent: December 31, 2013Assignee: A123 Systems LLCInventors: Antoni S. Gozdz, Andrew C. Chu, Ricardo Fulop, Yet-Ming Chiang, Gilbert N. Riley, Jr., Roger Lin
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Publication number: 20130344367Abstract: Redox flow devices are described in which at least one of the positive electrode or negative electrode-active materials is a semi-solid or is a condensed ion-storing electroactive material, and in which at least one of the electrode-active materials is transported to and from an assembly at which the electrochemical reaction occurs, producing electrical energy. The electronic conductivity of the semi-solid is increased by the addition of conductive particles to suspensions and/or via the surface modification of the solid in semi-solids (e.g., by coating the solid with a more electron conductive coating material to increase the power of the device). High energy density and high power redox flow devices are disclosed. The redox flow devices described herein can also include one or more inventive design features. In addition, inventive chemistries for use in redox flow devices are also described.Type: ApplicationFiled: August 26, 2013Publication date: December 26, 2013Applicants: 24-M Technologies, Inc., Massachusetts Institute of TechnologyInventors: Yet-Ming Chiang, W. Craig Carter, Bryan Y. Ho, Mihai Duduta, Pimpa Limthongkul
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Patent number: 8604664Abstract: The present invention provides systems, devices, and related methods, involving electrochemical actuation. In some cases, application of a voltage or current to a system or device of the invention may generate a volumetric or dimensional change, which may produce mechanical work. For example, at least a portion of the system may be constructed and arranged to be displaced from a first orientation to a second orientation. Systems such as these may be useful in various applications, including pumps (e.g., infusion pumps) and drug delivery devices, for example.Type: GrantFiled: July 5, 2012Date of Patent: December 10, 2013Assignee: Massachusetts Institute of TechnologyInventors: Yet-Ming Chiang, Michael J. Cima, Timothy E. Chin
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Patent number: 8586238Abstract: An energy storage device includes a first electrode comprising a first material and a second electrode comprising a second material, at least a portion of the first and second materials forming an interpenetrating network when dispersed in an electrolyte, the electrolyte, the first material and the second material are selected so that the first and second materials exert a repelling force on each other when combined. An electrochemical device, includes a first electrode in electrical communication with a first current collector; a second electrode in electrical communication with a second current collector; and an ionicaily conductive medium in ionic contact with said first and second electrodes, wherein at least a portion of the first and second electrodes form an interpenetrating network and wherein at least one of the first and second electrodes comprises an electrode structure providing two or more pathways to its current collector.Type: GrantFiled: May 15, 2012Date of Patent: November 19, 2013Assignee: Massachusetts Institute of TechnologyInventors: Yet-Ming Chiang, William Douglas Moorehead
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Patent number: 8580430Abstract: An energy storage device includes a first electrode comprising a first material and a second electrode comprising a second material, at least a portion of the first and second materials forming an interpenetrating network when dispersed in an electrolyte, the electrolyte, the first material and the second material are selected so that the first and second materials exert a repelling force on each other when combined. An electrochemical device, includes a first electrode in electrical communication with a first current collector; a second electrode in electrical communication with a second current collector; and an ionically conductive medium in ionic contact with said first and second electrodes, wherein at least a portion of the first and second electrodes form an interpenetrating network and wherein at least one of the first and second electrodes comprises an electrode structure providing two or more pathways to its current collector.Type: GrantFiled: July 13, 2012Date of Patent: November 12, 2013Assignee: Massachusetts Institute of TechnologyInventors: Yet-Ming Chiang, William Douglas Moorehead
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Publication number: 20130249348Abstract: The present invention provides systems, devices, and related methods, involving electrochemical actuation. In some cases, application of a voltage or current to a system or device of the invention may generate a volumetric or dimensional change, which may produce mechanical work. For example, at least a portion of the system may be constructed and arranged to be displaced from a first orientation to a second orientation. Systems such as these may be useful in various applications, including pumps (e.g., infusion pumps) and drug delivery devices, for example.Type: ApplicationFiled: January 11, 2013Publication date: September 26, 2013Applicant: Massachusetts Institute of TechnologyInventors: Yet-Ming Chiang, Michael J. Cima, Timothy E. Chin
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Patent number: 8541122Abstract: A battery management system includes one or more lithium ion cells in electrical connection, each said cell comprising: first and second working electrodes and one or more reference electrodes, each reference electrode electronically isolated from the working electrodes and having a separate tab or current collector exiting the cell and providing an additional terminal for electrical measurement; and a battery management system comprising a battery state-of-charge monitor, said monitor being operable for receiving information relating to the potential difference of the working electrodes and the potential of one or more of the working electrodes versus the reference electrode.Type: GrantFiled: April 17, 2012Date of Patent: September 24, 2013Assignee: A123 Systems LLCInventors: Ricardo Fulop, Yet-Ming Chiang, Karen E. Thomas-Alyea, William H. Gardner
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Publication number: 20130183568Abstract: An electrode/separator assembly for use in an electrochemical cell includes a porous composite layer having a total thickness in the range of about 4 ?m to about 50 ?m comprising inorganic particles having an average aggregate particle size in the range of about 0.5 ?m to about 6 ?m in an electrochemically stable polymer matrix.Type: ApplicationFiled: November 18, 2010Publication date: July 18, 2013Inventors: Susan J. Babinec, Patrick Hagans, William Hicks, Yet-Ming Chiang
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Patent number: 8481208Abstract: The invention provides bipolar articles (e.g., batteries and capacitors) with new architectures and methods of making and using the same. Articles are provided with interpenetrating anode and cathode structures that allow for improved power density, and arbitrary form factors that allow for formation in substantially any desired shape. The articles are useful for embedding or integral formation in various electronic devices to provide more efficient use of space in the devices. The articles optionally include self-organizing bipolar structures.Type: GrantFiled: June 16, 2010Date of Patent: July 9, 2013Assignee: A123 Systems, LLCInventors: Gilbert N. Riley, Jr., Yet-Ming Chiang, Antoni S. Gozdz, Michael S. Viola, Ricardo Fulop
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Publication number: 20130065122Abstract: An electrochemical cell includes an anode, a semi-solid cathode, and a separator disposed therebetween. The semi-solid cathode includes a porous current collector and a suspension of an active material and a conductive material disposed in a non-aqueous liquid electrolyte. The porous current collector is at least partially disposed within the suspension such that the suspension substantially encapsulates the porous current collector.Type: ApplicationFiled: September 7, 2012Publication date: March 14, 2013Applicant: 24M Technologies, Inc.Inventors: Yet-Ming Chiang, William Craig Carter, James C. Cross, III, Ricardo Bazzarella, Naoki Ota
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Publication number: 20130055559Abstract: A method of manufacturing an electrochemical cell includes transferring an anode semi-solid suspension to an anode compartment defined at least in part by an anode current collector and an separator spaced apart from the anode collector. The method also includes transferring a cathode semi-solid suspension to a cathode compartment defined at least in part by a cathode current collector and the separator spaced apart from the cathode collector. The transferring of the anode semi-solid suspension to the anode compartment and the cathode semi-solid to the cathode compartment is such that a difference between a minimum distance and a maximum distance between the anode current collector and the separator is maintained within a predetermined tolerance. The method includes sealing the anode compartment and the cathode compartment.Type: ApplicationFiled: September 7, 2012Publication date: March 7, 2013Applicant: 24M Technologies, Inc.Inventors: Alexander Slocum, Tristan Doherty, Ricardo Bazzarella, James C. Cross, III, Pimpa Limthongkul, Mihai Duduta, Jeffry Disko, Allen Yang, Throop Wilder, William Craig Carter, Yet-Ming Chiang
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Patent number: 8378552Abstract: The present invention provides systems, devices, and related methods, involving electrochemical actuation. In some cases, application of a voltage or current to a system or device of the invention may generate a volumetric or dimensional change, which may produce mechanical work. For example, at least a portion of the system may be constructed and arranged to be displaced from a first orientation to a second orientation. Systems such as these may be useful in various applications, including pumps (e.g., infusion pumps) and drug delivery devices, for example.Type: GrantFiled: December 12, 2011Date of Patent: February 19, 2013Assignee: Massachusetts Institute of TechnologyInventors: Yet-Ming Chiang, Michael J. Cima, Timothy E. Chin
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Patent number: 8368285Abstract: Devices and methods for providing electrochemical actuation are described herein. In one embodiment, an actuator device includes an electrochemical cell including a negative electrode and a positive electrode At least a portion of the negative electrode is formed with a material formulated to at least one of intercalate, de-intercalate, alloy with, oxidize, reduce, or plate with a first portion of the positive electrode to an extent different than with a second portion of the positive electrode such that a differential strain is imparted between the first portion and the second portion of the positive electrode and such that at least a portion of the electrochemical cell is displaced. The electrochemical cell includes a portion that is pre-bent along an axis of the electrochemical cell to define a fold axis and the displacement of the at least a portion of the electrochemical cell is maximized along the fold axis.Type: GrantFiled: December 16, 2011Date of Patent: February 5, 2013Assignees: Massachusette Institute of Technology, SpringLeaf TherapeuticsInventors: Yet-Ming Chiang, Timothy E. Chin, Michael J. Cima, J. Richard Gyory
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Publication number: 20130020903Abstract: The present invention provides devices and structures and methods of use thereof in electrochemical actuation. This invention provides electrochemical actuators, which are based, inter-alia, on an electric field-driven intercalation or alloying of high-modulus inorganic compounds, which can produce large and reversible volume changes, providing high actuation energy density, high actuation authority and large free strain.Type: ApplicationFiled: June 22, 2012Publication date: January 24, 2013Applicant: Massachusetts Institute of TechnologyInventors: Yet-Ming Chiang, Steven R. Hall, Yukinori Koyama, Kyungyeol Song, Timothy E. Chin, Urs Rhyner, Dimitrios Sapnaras, Fernando Tubilla
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Publication number: 20130020906Abstract: The present invention provides systems, devices, and related methods, involving electrochemical actuation. In some cases, application of a voltage or current to a system or device of the invention may generate a volumetric or dimensional change, which may produce mechanical work. For example, at least a portion of the system may be constructed and arranged to be displaced from a first orientation to a second orientation. Systems such as these may be useful in various applications, including pumps (e.g.Type: ApplicationFiled: July 5, 2012Publication date: January 24, 2013Applicant: Massachusetts Institute of TechnologyInventors: Yet-Ming Chiang, Michael J. Cima, Timothy E. Chin
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Publication number: 20120315538Abstract: Porous electrodes in which the porosity has a low tortuosity are generally provided. In some embodiments, the porous electrodes can be designed to be filled with electrolyte and used in batteries, and can include low tortuosity in the primary direction of ion transport during charge and discharge of the battery. In some embodiments, the electrodes can have a high volume fraction of electrode active material (i.e., low porosity). The attributes outlined above can allow the electrodes to be fabricated with a higher energy density, higher capacity per unit area of electrode (mAh/cm2), and greater thickness than comparable electrodes while still providing high utilization of the active material in the battery during use. Accordingly, the electrodes can be used to produce batteries with high energy densities, high power, or both compared to batteries using electrodes of conventional design with relatively highly tortuous pores.Type: ApplicationFiled: April 9, 2012Publication date: December 13, 2012Applicants: Massachusetts Instituteof Technology, The Regents of the University of Michigan, Lawrence Berkeley LaboratoryInventors: Yet-Ming Chiang, Chang-Jun Bae, John William Halloran, Qiang Fu, Antoni P. Tomsia, Can K. Erdonmez
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Patent number: 8323832Abstract: Nanoscale ion storage materials are provided that exhibit unique properties measurably distinct from their larger scale counterparts. For example, the nanoscale materials can exhibit increased electronic conductivity, improved electromechanical stability, increased rate of intercalation, and/or an extended range of solid solution. Useful nanoscale materials include alkaline transition metal phosphates, such as LiMPO4, where M is one or more transition metals. The nanoscale ion storage materials are useful for producing devices such as high energy and high power storage batteries, battery-capacitor hybrid devices, and high rate electrochromic devices.Type: GrantFiled: February 8, 2007Date of Patent: December 4, 2012Assignee: A123 Systems, Inc.Inventors: Yet-Ming Chiang, Antoni S. Gozdz, Martin W. Payne
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Patent number: 8310130Abstract: The present invention provides devices and structures and methods of use thereof in electrochemical actuation. This invention provides electrochemical actuators, which are based, inter-alia, on an electric field-driven intercalation or alloying of high-modulus inorganic compounds, which can produce large and reversible volume changes, providing high actuation energy density, high actuation authority and large free strain.Type: GrantFiled: March 4, 2011Date of Patent: November 13, 2012Assignee: Massachusetts Institute of TechnologyInventors: Yet-Ming Chiang, Steven R. Hall, Yukinori Koyama, Kyungyeol Song, Timothy E. Chin, Urs Rhyner, Dimitrios Sapnaras, Fernando Tubilla
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Publication number: 20120282530Abstract: An energy storage device includes a first electrode comprising a first material and a second electrode comprising a second material, at least a portion of the first and second materials forming an interpenetrating network when dispersed in an electrolyte, the electrolyte, the first material and the second material are selected so that the first and second materials exert a repelling force on each other when combined. An electrochemical device, includes a first electrode in electrical communication with a first current collector; a second electrode in electrical communication with a second current collector; and an ionically conductive medium in ionic contact with said first and second electrodes, wherein at least a portion of the first and second electrodes form an interpenetrating network and wherein at least one of the first and second electrodes comprises an electrode structure providing two or more pathways to its current collector.Type: ApplicationFiled: July 13, 2012Publication date: November 8, 2012Applicant: Massachusetts Institute of TechnologyInventors: Yet-Ming Chiang, William Douglas Moorehead
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Publication number: 20120270109Abstract: Amorphous or partially amorphous nanoscale ion storage materials are provided. For example, lithium transition metal phosphate storage compounds are nanoscale and amorphous or partially amorphous in an as-prepared state, or become amorphous or partially amorphous upon electrochemical intercalation or de-intercalation by lithium. These nanoscale ion storage materials are useful for producing devices such as high energy and high power storage batteries.Type: ApplicationFiled: April 13, 2012Publication date: October 25, 2012Applicant: A123 SYSTEMS, INC.Inventors: Yet-Ming CHIANG, Anthony E. PULLEN, Nonglak MEETHONG