Patents by Inventor Mohit Singh
Mohit Singh 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: 8563168Abstract: A polymer that combines high ionic conductivity with the structural properties required for Li electrode stability is useful as a solid phase electrolyte for high energy density, high cycle life batteries that do not suffer from failures due to side reactions and dendrite growth on the Li electrodes, and other potential applications. The polymer electrolyte includes a linear block copolymer having a conductive linear polymer block with a molecular weight of at least 5000 Daltons, a structural linear polymer block with an elastic modulus in excess of 1×107 Pa and an ionic conductivity of at least 1×10?5 Scm?1. The electrolyte is made under dry conditions to achieve the noted characteristics.Type: GrantFiled: April 3, 2007Date of Patent: October 22, 2013Assignee: The Regents of The University of CaliforniaInventors: Nitash Pervez Balsara, Mohit Singh, Hany Basam Eitouni, Enrique Daniel Gomez
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Publication number: 20130130069Abstract: A polymer that combines high ionic conductivity with the structural properties required for Li electrode stability is useful as a solid phase electrolyte for high energy density, high cycle life batteries that do not suffer from failures due to side reactions and dendrite growth on the Li electrodes, and other potential applications. The polymer electrolyte includes a linear block copolymer having a conductive linear polymer block with a molecular weight of at least 5000 Daltons, a structural linear polymer block with an elastic modulus in excess of 1×107 Pa and an ionic conductivity of at least 1×10?5 Scm?1. The electrolyte is made under dry conditions to achieve the noted characteristics. In another aspect, the electrolyte exhibits a conductivity drop when the temperature of electrolyte increases over a threshold temperature, thereby providing a shutoff mechanism for preventing thermal runaway in lithium battery cells.Type: ApplicationFiled: October 30, 2012Publication date: May 23, 2013Inventors: Scott Mullin, Ashoutosh Panday, Nitash Pervez Balsara, Mohit Singh, Hany Basam Eitouni, Enrique Daniel Gomez
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Publication number: 20130063092Abstract: Electrochemical cells that use electrolytes made from new polymer compositions based on poly(2,6-dimethyl-1,4-phenylene oxide) and other high-softening-temperature polymers are disclosed. These materials have a microphase domain structure that has an ionically-conductive phase and a phase with good mechanical strength and a high softening temperature. In one arrangement, the structural block has a softening temperature of about 210° C. These materials can be made with either homopolymers or with block copolymers. Such electrochemical cells can operate safely at higher temperatures than have been possible before, especially in lithium cells. The ionic conductivity of the electrolytes increases with increasing temperature.Type: ApplicationFiled: May 19, 2011Publication date: March 14, 2013Applicant: SEEO, INCInventors: Jin Yang, Hany Basam Eitouni, Mohit Singh
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Publication number: 20130066025Abstract: New polymer compositions based on poly(2,6-dimethyl-1,4-phenylene oxide) and other high-softening-temperature polymers are disclosed. These materials have a microphase domain structure that has an ionically-conductive phase and a phase with good mechanical strength and a high softening temperature. In one arrangement, the structural block has a softening temperature of about 210° C. These materials can be made with either homopolymers or with block copolymers.Type: ApplicationFiled: May 19, 2011Publication date: March 14, 2013Applicant: SEEO, INCInventors: Jin Yang, Hany Basam Eitouni, Mohit Singh
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Patent number: 8268197Abstract: The present invention relates generally to electrolyte materials. According to an embodiment, the present invention provides for a solid polymer electrolyte material that is ionically conductive, mechanically robust, and can be formed into desirable shapes using conventional polymer processing methods. An exemplary polymer electrolyte material has an elastic modulus in excess of 1×106 Pa at 90 degrees C. and is characterized by an ionic conductivity of at least 1×10?5 Scm-1 at 90 degrees C. An exemplary material can be characterized by a two domain or three domain material system. An exemplary material can include material components made of diblock polymers or triblock polymers. Many uses are contemplated for the solid polymer electrolyte materials.Type: GrantFiled: November 14, 2008Date of Patent: September 18, 2012Assignee: Seeo, Inc.Inventors: Mohit Singh, Ilan Gur, Hany Basam Eitouni, Nitash Pervez Balsara
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Publication number: 20120141881Abstract: An optimal architecture for a polymer electrolyte battery, wherein one or more layers of electrolyte (e.g., solid block-copolymer) are situated between two electrodes, is disclosed. An anolyte layer, adjacent the anode, is chosen to be chemically and electrochemically stable against the anode active material. A catholyte layer, adjacent the cathode, is chosen to be chemically and electrochemically stable against the cathode active material.Type: ApplicationFiled: August 13, 2010Publication date: June 7, 2012Applicant: SEEO, INCInventors: Michael Geier, Ilan Gur, Mohit Singh, William Hudson
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Publication number: 20120110835Abstract: When electrode films are prepared for lithium electrochemical cells, problems are often encountered in laminating the films with an appropriate intervening electrolyte layer. This presents a significant challenge because proper alignment of the three layers and complete lamination at the interfaces are crucial to good cell performance. Often lamination is imperfect with gaps and defects at the interfaces. The disclosure herein describes a method of casting or extruding a polymer electrolyte directly onto an electrode film to create an electrode assembly with a continuous, defect-free interface. In some arrangements, there is some slight intermixing of the layers at the interface. A complete cell can be formed by laminating two such electrode assemblies to opposite sides of an additional electrolyte or to one another.Type: ApplicationFiled: November 6, 2009Publication date: May 10, 2012Applicant: Seeo, Inc.Inventors: Willliam Hudson, Mohit Singh, Michael Geier
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Patent number: 8149332Abstract: Aspects of a method and system for processing signals in a television system using a subset of receive operations for detecting digital and analog television signals are provided. The system and method may be deployed in, for example, cable TV set-top boxes, cable TV modems, and television receivers, which may be coupled to a cable TV or over-the-air terrestrial network. Performing only a subset of receiver operations may allow detection of the type of signal; for example digital QAM, digital VSB, or analog; present in a television channel. In this regard, it is not necessary to generate and validate a bit stream in order to detect if a signal is present and/or the type of signal present.Type: GrantFiled: May 10, 2007Date of Patent: April 3, 2012Assignee: Broadcom CorporationInventors: Mohit Singh, Thomas Spieker
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Publication number: 20120029099Abstract: The present invention relates generally to electrolyte materials. According to an embodiment, the present invention provides for a solid polymer electrolyte material that has high ionic conductivity and is mechanically robust. An exemplary material can be characterized by a copolymer that includes at least one structural block, such as a vinyl polymer, and at least one ionically conductive block with a siloxane backbone. In various embodiments, the electrolyte can be a diblock copolymer or a triblock copolymer. Many uses are contemplated for the solid polymer electrolyte materials. For example, the novel electrolyte material can be used in Li-based batteries to enable higher energy density, better thermal and environmental stability, lower rates of self-discharge, enhanced safety, lower manufacturing costs, and novel form factors.Type: ApplicationFiled: August 22, 2009Publication date: February 2, 2012Applicant: SEEO, INCInventors: Bing Hsieh, Hany Basam Eitouni, Mohit Singh
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Publication number: 20110281175Abstract: An electrode/electrolyte assembly that has a well-integrated interface between an electrode and a solid polymer electrolyte film, which provides continuous, ionically-conducting and electronically insulating paths between the films is provided. A slurry is made containing active electrolyte material, a liquefied, ionically-conductive first polymer electrolyte with dissolved lithium salt, and conductive additive. The binder may have been liquefied by dissolving in a volatile solvent or by melting. The slurry is cast or extruded as a thin film and dried or cooled to form an electrode layer that has some inherent porosity. A liquefied second polymer electrolyte that includes a salt is cast over the electrode film. Some of the liquefied second polymer electrolyte fills at least some of the pores in the electrode film and the rest forms an electrolyte layer on top of the electrode film.Type: ApplicationFiled: November 6, 2009Publication date: November 17, 2011Applicant: Seeo, IncInventors: William Hudson, Mohit Singh, Michael Geier
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Publication number: 20110281173Abstract: Electrode assemblies for use in electrochemical cells are provided. The negative electrode assembly comprises negative electrode active material and an electrolyte chosen specifically for its useful properties in the negative electrode. These properties include reductive stability and ability to accommodate expansion and contraction of the negative electrode active material. Similarly, the positive electrode assembly comprises positive electrode active material and an electrolyte chosen specifically for its useful properties in the positive electrode. These properties include oxidative stability and the ability to prevent dissolution of transition metals used in the positive electrode active material. A third electrolyte can be used as separator between the negative electrode and the positive electrode.Type: ApplicationFiled: November 6, 2009Publication date: November 17, 2011Applicant: SEEO, INC.Inventors: Mohit Singh, Ilan Gur, Hany Basam Eitouni, Nitash Pervez Balsara
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Publication number: 20110206994Abstract: Nanostructured gel polymer electrolytes that have both high ionic conductivity and high mechanical strength are disclosed. The electrolytes have at least two domains—one domain contains an ionically-conductive gel polymer and the other domain contains a rigid polymer that provides structure for the electrolyte. The domains are formed by block copolymers. The first block provides a polymer matrix that may or may not be conductive on by itself, but that can soak up a liquid electrolyte, thereby making a gel. An exemplary nanostructured gel polymer electrolyte has an ionic conductivity of at least 1×10?4 S cm?1 at 25° C.Type: ApplicationFiled: January 16, 2009Publication date: August 25, 2011Applicants: SEEO, INC, THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Nitash Pervez Balsara, Hany Basam Eitouni, Ilan Gur, Mohit Singh
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Publication number: 20110136017Abstract: A novel anode for a lithium battery cell is provided. The anode contains silicon nanoparticles embedded in a solid polymer electrolyte. The electrolyte can also act as a binder for the silicon nanoparticles. A plurality of voids is dispersed throughout the solid polymer electrolyte. The anode may also contain electronically conductive carbon particles. Upon charging of the cell, the silicon nanoparticles expand as take up lithium ions. The solid polymer electrolyte can deform reversibly in response to the expansion of the nanoparticles and transfer the volume expansion to the voids.Type: ApplicationFiled: July 31, 2009Publication date: June 9, 2011Applicant: SEEO, INCInventors: Mohit Singh, William Hudson
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Publication number: 20110075324Abstract: An electrode for a supercapacitor includes a block copolymer and active material particles. The block copolymer is used both to bind the particles together and to act as an electrolyte. The electrode does not have a porous structure, but rather it is pressed or rolled to achieve zero porosity and to ensure good contact between the particles and the block copolymer electrolyte. Thus, the entire surface of the active particles can be accessed for charge storage. Furthermore, the volume of such an electrode is smaller than typical electrodes with the same capacity, as none of the volume is wasted with additional, non-active binder material, offering a higher effective active material loading per unit volume. Electrodes made in this way, with block copolymer electrolyte and active materials, can also form free-standing films that are easy to handle during manufacture of supercapacitors.Type: ApplicationFiled: May 29, 2009Publication date: March 31, 2011Applicant: Seeo, IncInventor: Mohit Singh
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Publication number: 20110033755Abstract: It has long been recognized that replacing the Li intercalated graphitic anode with a lithium foil can dramatically improve energy density due to the dramatically higher capacity of metallic lithium. However, lithium foil is not electrochemically stable in the presence of typical lithium ion battery electrolytes and thus a simple replacement of graphitic anodes with lithium foils is not possible. It was found that diblock or triblock polymers that provide both ionic conduction and structural support can be used as a stable passivating layer on a lithium foil. This passivation scheme results in improved manufacture processing for batteries that use Li electrodes and in improved safety for lithium batteries during use.Type: ApplicationFiled: April 21, 2009Publication date: February 10, 2011Applicant: Seeo, IncInventors: Hany Basam Eitouni, Mohit Singh, Nitash Pervez Balsara, William Hudson, Ilan R. Gur
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Publication number: 20110003211Abstract: An electrode assembly that includes an electrode film and a current collector is provided. The electrode film includes electrode active material, electronically conductive particles, and a solid polymer electrolyte. In some embodiments, no additional binder is used as the solid polymer electrolyte also acts as a binder to hold together the active material and electronically conductive particles, thus creating a freestanding electrode film. Such a freestanding film makes it possible to deposit a very thin current collector layer, thus increasing specific energy and specific power for electrochemical cells in which these electrode assemblies are used.Type: ApplicationFiled: February 13, 2009Publication date: January 6, 2011Applicant: Seeo, Inc.Inventors: William Hudson, Hany Basam Eitouni, Mohit Singh, Nitash Pervez Balsara, Ilan Gur
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Publication number: 20100318436Abstract: A system that selects items from a plurality of items is described herein. The system includes a receiver component that receives a plurality items for an activity in a sequence having an order. A selection component sequentially evaluates each of the items in the sequence in the order received by the receiver component and for each item being evaluated determines that an evaluated item is to be uniquely selected out of the plurality of items immediately upon evaluation thereof. The selection component selects the item such that when the value of the item is higher than the values of all previous items in the sequence, any position in the sequence has a substantially similar probability as any other position to have the item selected.Type: ApplicationFiled: June 15, 2009Publication date: December 16, 2010Applicant: Microsoft CorporationInventors: Kamal Jain, Niv Buchbinder, Mohit Singh
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Publication number: 20100227224Abstract: A sulfur-based cathode for use in an electrochemical cell is disclosed. An exemplary sulfur-based cathode is coupled with a solid polymer electrolyte instead of a conventional liquid electrolyte. The dry, solid polymer electrolyte acts as a diffusion barrier for the sulfur, thus preventing the sulfur capacity fade that occurs in conventional liquid electrolyte based cell systems. The solid polymer electrolyte further binds the sulfur-containing active particles, preventing sulfur agglomerates from forming, while still allowing lithium ions to be transported between the anode and cathode.Type: ApplicationFiled: March 5, 2010Publication date: September 9, 2010Applicant: SEEO, INCInventors: Hany Basam Eitouni, Mohit Singh
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Publication number: 20090263725Abstract: A polymer that combines high ionic conductivity with the structural properties required for Li electrode stability is useful as a solid phase electrolyte for high energy density, high cycle life batteries that do not suffer from failures due to side reactions and dendrite growth on the Li electrodes, and other potential applications. The polymer electrolyte includes a linear block copolymer having a conductive linear polymer block with a molecular weight of at least 5000 Daltons, a structural linear polymer block with an elastic modulus in excess of 1×107 Pa and an ionic conductivity of at least 1×10?5 Scm?1. The electrolyte is made under dry conditions to achieve the noted characteristics.Type: ApplicationFiled: April 3, 2007Publication date: October 22, 2009Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Nitash Pervez Balsara, Mohit Singh, Hany Basam Eitouni, Enrique Daniel Gomez
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Publication number: 20090104523Abstract: A polymer that combines high ionic conductivity with the structural properties required for Li electrode stability is useful as a solid phase electrolyte for high energy density, high cycle life batteries that do not suffer from failures due to side reactions and dendrite growth on the Li electrodes, and other potential applications. The polymer electrolyte includes a linear block copolymer having a conductive linear polymer block with a molecular weight of at least 5000 Daltons, a structural linear polymer block with an elastic modulus in excess of 1×107 Pa and an ionic conductivity of at least 1×10?5 Scm?1. The electrolyte is made under dry conditions to achieve the noted characteristics. In another aspect, the electrolyte exhibits a conductivity drop when the temperature of electrolyte increases over a threshold temperature, thereby providing a shutoff mechanism for preventing thermal runaway in lithium battery cells.Type: ApplicationFiled: October 1, 2008Publication date: April 23, 2009Inventors: Scott Mullin, Ashoutosh Panday, Nitash Pervez Balsara, Mohit Singh, Hany Basam Eitouni, Enrique Daniel Gomez