Patents by Inventor James R. Salvador
James R. Salvador 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: 20190372155Abstract: A method of fabricating a composite electrode for use in an electrochemical cell includes preparing a layer of powder including a plurality of electroactive material particles and a plurality of electrolyte particles. The electrolyte particles include a sulfide or oxy-sulfide glass. The method further includes heating the layer of powder to a temperature of greater than or equal to Tg and less than Tc. Tg is a glass transition temperature of the sulfide or oxy-sulfide glass. Tc is a crystallization temperature of the sulfide or oxy-sulfide glass. The method further includes, while the sulfide or oxy-sulfide glass electrolyte is at the temperature, applying a pressure of about 0.1-360 MPa to the layer of powder. The pressure causes the sulfide or oxy-sulfide glass to flow around the electroactive material particles to create a compact. The present disclosure also provides methods of creating laminates including the composite electrodes.Type: ApplicationFiled: May 30, 2018Publication date: December 5, 2019Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Thomas A. YERSAK, James R. SALVADOR, Robert D. SCHMIDT
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Publication number: 20190372164Abstract: An electrolyte system for an electrochemical cell includes an aprotic solvent, such as an ether-based solvent and a lithium salt, and a solid component. The aprotic solvent has a dielectric constant of ?3. The solid component is in direct communication with the aprotic solvent. The solid component includes a sulfide or oxy-sulfide, glass or glass-ceramic electrolyte. The sulfide or oxy-sulfide, glass or glass-ceramic electrolyte has a weighted average bond dissociation enthalpy of greater than or equal to about 380 kJ/mol, which corresponds to a glass having strong bonds. The sulfide or oxy-sulfide, glass or glass-ceramic electrolyte is therefore insoluble in the aprotic solvent. The solid component is lithium ion-conducting and electrically insulating. The electrolyte system may be disposed between a positive electrode and a negative electrode in an electrochemical cell. In various aspects, the negative electrode includes lithium metal and the positive electrode includes sulfur.Type: ApplicationFiled: May 30, 2018Publication date: December 5, 2019Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: James R. SALVADOR, Thomas A. YERSAK
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Publication number: 20190352748Abstract: Provided is a method of manufacturing a crystalline aluminum-iron-silicon alloy, and optionally an automotive component comprising the same, comprising forming a composite ingot including a plurality of crystalline phases by melting aluminum, iron, and silicon raw materials in an inert environment to form a substantially homogenous melt, subsequently solidifying the melt, and annealing the ingot under vacuum by heating at a temperature in the range of 850° C. to 1000° C. yield an annealed crystalline ingot wherein the predominant crystalline phase is FCC Al3Fe2Si. The raw materials can further include one or more additives such as zinc, zirconium, tin, and chromium. Melting can occur above the FCC Al3Fe2Si crystalline phase melting point, or at a temperature of about 1100° C. to about 1400° C. Annealing can occur under vacuum conditions.Type: ApplicationFiled: May 21, 2018Publication date: November 21, 2019Inventors: Zhongyi Liu, Tengjiao Qi, James R. Salvador, Ratandeep S. Kukreja
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Publication number: 20190345588Abstract: A method of making an aluminum alloy containing titanium includes heating a first composition to a first temperature. The first composition includes aluminum. The first temperature is greater than or equal to a liquidus temperature of the first composition. The method further includes adding a second composition to the first composition to form a third composition. The second composition includes a copper-titanium compound. The method further includes decomposing at least a portion of the copper-titanium compound into copper and titanium. The method further includes cooling the third composition to a second temperature to form a first solid material. The second temperature is less than or equal to a solidus temperature of the third composition. The method further includes heat treating the first solid material to form the aluminum alloy containing titanium.Type: ApplicationFiled: May 9, 2018Publication date: November 14, 2019Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Michael J. WALKER, Qigui WANG, Andrew C. BOBEL, James R. SALVADOR, Henry ZHAN
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Patent number: 10473604Abstract: A number of variations may involve a method that may include providing a non-conductive layer. A conductive layer may be provided overlying the non-conductive layer with the conductive layer to form a sensor device. An opposition to electrical current through the conductive layer may be monitored. The location of a status of the non-conductive layer or of the conductive layer may be determined through a change in the opposition.Type: GrantFiled: April 29, 2016Date of Patent: November 12, 2019Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: James R. Salvador, Debejyo Chakraborty, Leonid C. Lev
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Patent number: 10431849Abstract: An electrochemical cell comprising an alkali metal anode and a solid electrolyte is disclosed. The surface of the electrolyte is roughened, mechanically, chemically or by ablation and the cell is operated at a pressure of between 3 MPa and 10 MPa. Such a cell exhibits higher power density than a like-dimensioned cell employing a smooth-surfaced electrolyte surface and operated at pressures of less than 1 MPa.Type: GrantFiled: April 21, 2017Date of Patent: October 1, 2019Assignee: GM Global Technology Operations LLCInventors: Thomas A. Yersak, James R. Salvador
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Patent number: 10424710Abstract: An engine includes a cylinder liner. The cylinder liner includes an interior wall, an exterior wall, and a thermoelectric element disposed therebetween. The interior wall forms a cylinder bore forming part of a combustion chamber. The exterior wall is positioned adjacent a coolant jacket. The thermoelectric element is operable to generate an electric current in response to a temperature gradient between the interior wall, which is exposed to the high temperatures of the combustion chamber, and the exterior wall, which is exposed to the cooler temperatures of a coolant in the coolant jacket. An electric current in a circuit of the thermoelectric element may be controlled to affect a cylinder wall temperature. The circuit of the thermoelectric element may be opened, and the voltage of the thermoelectric element may be measured and used to calculate the cylinder wall temperature.Type: GrantFiled: October 3, 2017Date of Patent: September 24, 2019Assignee: GM Global Technology Operations LLCInventors: James R. Salvador, Anil Bika, Alok Warey, Venkatesh Gopalakrishnan
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Patent number: 10415689Abstract: A method of using a thermoelectric generator for warming a transmission on a vehicle having an internal combustion engine is provided. The method includes starting the internal combustion engine, thereby generating a hot exhaust gas; circulating coolant through a heating loop in fluid communication with the internal combustion engine and the thermoelectric generator; passing the hot exhaust gas through a hot-side of the thermoelectric generator and circulating the coolant through the cold-side of the thermoelectric generator, thereby transferring heat from the hot exhaust gas to the coolant and generating an electric current; and selectively powering an electric heating element with the electric current. The electric heating element is in thermal communication with a transmission fluid of the transmission.Type: GrantFiled: August 29, 2018Date of Patent: September 17, 2019Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Douglas Dickson, Lawrence P. Ziehr, James R. Salvador, Daniel J. Shepard
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Publication number: 20190103537Abstract: An engine includes a cylinder liner. The cylinder liner includes an interior wall, an exterior wall, and a thermoelectric element disposed therebetween. The interior wall forms a cylinder bore forming part of a combustion chamber. The exterior wall is positioned adjacent a coolant jacket. The thermoelectric element is operable to generate an electric current in response to a temperature gradient between the interior wall, which is exposed to the high temperatures of the combustion chamber, and the exterior wall, which is exposed to the cooler temperatures of a coolant in the coolant jacket. An electric current in a circuit of the thermoelectric element may be controlled to affect a cylinder wall temperature. The circuit of the thermoelectric element may be opened, and the voltage of the thermoelectric element may be measured and used to calculate the cylinder wall temperature.Type: ApplicationFiled: October 3, 2017Publication date: April 4, 2019Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: James R. Salvador, Anil Bika, Alok Warey, Venkatesh Gopalakrishnan
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Publication number: 20190058210Abstract: An electrochemical cell includes a negative electrode that contains lithium and an electrolyte system. In one variation, the electrolyte system includes a first liquid electrolyte, a solid-dendrite-blocking layer, and an interface layer. The solid dendrite-blocking layer is ionically conducting and electrically insulating. The dendrite-blocking layer includes a first component and a distinct second component. The dendrite-blocking layer has a shear modulus of greater than or equal to about 7.5 GPa at 23° C. The interface layer is configured to interface with a negative electrode including lithium metal on a first side and the dendrite blocking layer on a second opposite side. The interface layer includes a second liquid electrolyte, a gel polymer electrolyte, or a solid-state electrolyte. The dendrite-blocking layer is disposed between the first liquid electrolyte and the interface layer.Type: ApplicationFiled: August 15, 2017Publication date: February 21, 2019Inventors: Fang Dai, Li Yang, Thomas A. Yersak, James R. Salvador, Mei Cai
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Publication number: 20180375148Abstract: Fiber-reinforced separators/solid electrolytes suitable for use in a cell employing an anode comprising an alkali metal are disclosed. Such fiber-reinforced separators/solid electrolytes may be at least partially amorphous and prepared by compacting, at elevated temperatures, powders of an ion-conducting composition appropriate to the anode alkali metal. The separators/solid electrolytes may employ discrete high aspect ratio fibers and fiber mats or plate-like mineral particles to reinforce the separator solid electrolyte. The reinforcing fibers may be inorganic, such as silica-based glass, or organic, such as a thermoplastic. In the case of thermoplastic fiber-reinforced separators/solid electrolytes, any of a wide range of thermoplastic compositions may be selected provided the glass transition temperature of the polymer reinforcement composition is selected to be higher than the glass transition temperature of the amorphous portion of the separator/solid electrolyte.Type: ApplicationFiled: June 23, 2017Publication date: December 27, 2018Inventors: Thomas A. Yersak, James R. Salvador
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Publication number: 20180363760Abstract: A method of using a thermoelectric generator for warming a transmission on a vehicle having an internal combustion engine is provided. The method includes starting the internal combustion engine, thereby generating a hot exhaust gas; circulating coolant through a heating loop in fluid communication with the internal combustion engine and the thermoelectric generator; passing the hot exhaust gas through a hot-side of the thermoelectric generator and circulating the coolant through the cold-side of the thermoelectric generator, thereby transferring heat from the hot exhaust gas to the coolant and generating an electric current; and selectively powering an electric heating element with the electric current. The electric heating element is in thermal communication with a transmission fluid of the transmission.Type: ApplicationFiled: August 29, 2018Publication date: December 20, 2018Inventors: Douglas Dickson, Lawrence P. Ziehr, James R. Salvador, Daniel J. Shepard
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Publication number: 20180309165Abstract: An electrochemical cell comprising an alkali metal anode and a solid electrolyte is disclosed. The surface of the electrolyte is roughened, mechanically, chemically or by ablation and the cell is operated at a pressure of between 3 MPa and 10 MPa. Such a cell exhibits higher power density than a like-dimensioned cell employing a smooth-surfaced electrolyte surface and operated at pressures of less than 1 MPa.Type: ApplicationFiled: April 21, 2017Publication date: October 25, 2018Inventors: Thomas A. Yersak, James R. Salvador
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Publication number: 20180309166Abstract: Certain glass, glass-ceramic, and ceramic electrolyte bodies formed from lithium or sodium sulfides and glass-forming sulfides, sulfoxides and/or certain glass-forming oxides provide good conductivity of lithium ions or sodium ions for use in lithium metal electrode or sodium metal electrode battery cells. The stability of the lithium or sodium metal anode-glass electrolyte interface is improved by forming a metal oxide passivation layer by atomic layer deposition on the facing surface of the electrolyte and activating the coating by contact of the passivated surface with the lithium or sodium electrode material.Type: ApplicationFiled: April 24, 2017Publication date: October 25, 2018Inventors: Thomas A. Yersak, Xingcheng Xiao, James R. Salvador
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Publication number: 20180294517Abstract: Thin amorphous or partially crystalline lithium-containing and conducting sulfide or oxysulfide glass electrode/separator members are prepared from a layer of molten glass or of glass powder. The resulting glass films are formed to lie face-to face against a lithium metal anode or a sodium metal anode and a cathode and to provide for good transport of lithium ions between the electrodes during repeated cycling of the cell and to prevent shorting of the cell by dendrites growing from the lithium metal or sodium metal anode.Type: ApplicationFiled: April 6, 2017Publication date: October 11, 2018Inventors: Thomas A. Yersak, James R. Salvador, Han Nguyen
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Patent number: 10094464Abstract: A vehicle, system, and method of warming the transmission fluid with a thermoelectric generator is also provided. Disclosed is vehicle having an internal combustion engine, a transmission containing a transmission fluid, a coolant circuit configured to remove heat from the engine, and a thermoelectric generator. The thermoelectric generator is in non-contact thermal communication with the hot exhaust gas produced by the engine and the relatively cooler coolant circulating through the coolant circuit. The thermoelectric generator produces a current from the temperature gradient between the exhaust gas relative and coolant and transfers heat from the exhaust gas to the coolant. The heat coolant is conveyed to a transmission heat exchanger to heat the transmission fluid. A heating element is disposed in thermal contact with the transmission fluid and the heating element is powered by the electric current produced by the thermoelectric generator.Type: GrantFiled: August 4, 2016Date of Patent: October 9, 2018Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Douglas Dickson, Lawrence P. Ziehr, James R. Salvador, Daniel J. Shepard
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Publication number: 20180195988Abstract: A number of variations may involve a method that may include providing a non-conductive layer. A conductive layer may be provided and may overly the non-conductive layer to form a sensor device. The presence of a volatile organic compound may be determined by monitoring the conductive layer.Type: ApplicationFiled: April 29, 2016Publication date: July 12, 2018Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: James R. Salvador, Debejyo Chakraborty
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Publication number: 20180172613Abstract: A number of variations may involve a method that may include providing a non-conductive layer. A conductive layer may be provided overlying the non-conductive layer with the conductive layer to form a sensor device. An opposition to electrical current through the conductive layer may be monitored. The location of a status of the non-conductive layer or of the conductive layer may be determined through a change in the opposition.Type: ApplicationFiled: April 29, 2016Publication date: June 21, 2018Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: James R. Salvador, Debejyo Chakraborty, Leonid C. Lev
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Publication number: 20180156646Abstract: A number of variations may include a product including a substrate and a sensor device including a non-conductive layer and a conductive layer overlying the non-conductive layer wherein the sensor device is constructed and arranged to measure or monitor a variable comprising at least one of temperature, pressure, VOC concentration, state of charge, or state of health of a substrate.Type: ApplicationFiled: April 29, 2016Publication date: June 7, 2018Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: James R. Salvador, Debejyo Chakraborty, Leonid C. Lev
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Patent number: 9903851Abstract: A vehicle includes a thermal harvesting device that is positioned adjacent a heat-generating vehicle system. The thermal harvesting device generates electricity based on a temperature differential in order to power a sensor and a wireless transmitter.Type: GrantFiled: July 29, 2015Date of Patent: February 27, 2018Assignee: GM Global Technology Operations LLCInventors: Nicholas P. Irish, James R. Salvador, William L. Villaire