Patents by Inventor Liang Xi
Liang Xi 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: 20250132393Abstract: A method of manufacturing a battery cell includes providing a battery cell container. The method also includes generating a first battery monocell having a respective anode, cathode, first separator arranged therebetween, and a second separator arranged adjacent to the corresponding anode. The method additionally includes generating a second battery monocell having a respective anode, cathode, first separator arranged therebetween, and a second separator arranged adjacent to the corresponding anode. The method also includes stacking the first battery monocell and the second battery monocell such that the second separator of the first battery monocell is adjacent to the cathode of the second battery monocell. The method further includes arranging the stacked first and second battery monocells in the battery cell container.Type: ApplicationFiled: October 19, 2023Publication date: April 24, 2025Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Binsong Li, Liang Xi, SriLakshmi Katar
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Publication number: 20250118837Abstract: A battery cell includes a first electrode stack and a second electrode stack, each having at least one pair of anode and cathode elements. The cell also includes a container defining an internal chamber housing the first and second electrode stacks and having external first and second battery terminals. The cell additionally includes a first electrically conductive tab connected to the first battery terminal and to each anode element in the first and second electrode stacks and having a first expandable portion arranged between the first and second electrode stacks. The cell also includes a second electrically conductive tab connected to the second battery terminal and to each cathode element in the first and second electrode stacks and having a second expandable portion arranged between the first and second electrode stacks. The expandable portions absorb alternating expansion and contraction of the subject electrode stacks during cell charging and discharging.Type: ApplicationFiled: October 6, 2023Publication date: April 10, 2025Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Binsong Li, Liang Xi, SriLakshmi Katar
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Publication number: 20250112220Abstract: A method of annealing an exposed metal edge margin of a coated battery electrode strip to relieve stress and reduce wrinkling includes applying a magnetic field through an apertured magnetic shield to the exposed metal edge margins. The magnetic field induces eddy currents that heat the exposed metal edge margins to an annealing temperature, while the magnetic shield blocks the magnetic field near the near the coating to protect it from overheating. An apparatus for annealing an exposed metal edge margin of a coated battery electrode strip includes a source of magnetic field and an apertured magnetic shield. In an alternative embodiment, the apparatus includes a laser is for heating the exposed metal edge margin without overheating the coating.Type: ApplicationFiled: September 28, 2023Publication date: April 3, 2025Inventors: Raghavendra Saikrishna Keerthi MANDA, Daniel Gerardo GONZALEZ, Jeffery Thomas WHITE, JR., Srilakshim KATAR, Subrahmanyam GORIPARTI, Liang XI
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Publication number: 20250103625Abstract: Methods and systems are presented for providing a knowledge bot configurable to interact with users across multiple domains. The knowledge bot includes at least a text-based search engine and a semantic-based search engine. Each of the search engine is configured to retrieve documents from a corpus of documents based on the user query. The user query is in a natural language format. The retrieved documents may be ranked according to how relevant the documents are to the user query. A subset of the documents is used as the search results based on the ranking. The search results from the search engine are combined with the user query to generate a prompt for an artificial intelligence model. Based on the prompt, a response in the natural language format is generated by the artificial intelligence model.Type: ApplicationFiled: September 25, 2023Publication date: March 27, 2025Inventors: Santosh Addanki, Soujanya Lanka, Nandana Murthy, Koteswara Rao Pathuri, Bineet Ranjan, Liang Xi, Xiaoying Han, Raghotham Sripadraj
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Publication number: 20250105401Abstract: A method for manufacturing an enclosure includes designing a two dimensional (2D) blank corresponding to a three dimensional (3D) enclosure body; laying out N of the 2D blanks on a metal sheet, where N is an integer greater than one; separating the N 2D blanks from the metal sheet; at least one of bending, folding and/or flanging the N 2D blanks into the 3D enclosure body; and joining a plurality of sides of the 3D enclosure body.Type: ApplicationFiled: September 22, 2023Publication date: March 27, 2025Inventors: Lu HUANG, Ziqiang Sheng, Wei Wu, Hui-ping Wang, Liang Xi, Wai Ping Gloria Tam
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Publication number: 20250103622Abstract: Methods and systems are presented for providing a knowledge bot configurable to interact with users across multiple domains. The knowledge bot includes at least a text-based search engine and a semantic-based search engine. Each of the search engine is configured to retrieve documents from a corpus of documents based on the user query. The user query is in a natural language format. The retrieved documents may be ranked according to how relevant the documents are to the user query. A subset of the documents is used as the search results based on the ranking. The search results from the search engine are combined with the user query to generate a prompt for an artificial intelligence model. Based on the prompt, a response in the natural language format is generated by the artificial intelligence model.Type: ApplicationFiled: September 25, 2023Publication date: March 27, 2025Inventors: Santosh Addanki, Soujanya Lanka, Nandana Murthy, Koteswara Pathuri, Bineet Ranjan, Liang Xi, Xiaoying Han, Raghotham Sripadraj
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Publication number: 20250106321Abstract: Techniques are disclosed that relate to a computer system implementing an interactive voice response (IVR) transcoder. The computer system may receive voice input from an interactive voice response (IVR) system, or other channel. The computer system converts the received input to a request having a common format supported by an artificial intelligence (AI) core including one or more virtual agents. The computer system routes the request to the AI core operable to handle requests specified in the common format. The computer system receives, by the interface module, response data including data (e.g. text data) responsive to the second request. The computer system may implement a conversational artificial intelligence (CAI) platform. The computer system may receive text input from a chat-based input source. The computer system may route another request based on the text input to the AI core, the request being specified in the common text format.Type: ApplicationFiled: September 26, 2023Publication date: March 27, 2025Inventors: Oliver Jamero Reyes, Vinaykanth Manthena, James Siang-Jin Kua, Niall Rooney, Liang Xi, Ajay Aswal
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Publication number: 20250087801Abstract: A modular multi-cell rechargeable energy storage system (RESS) includes a RESS enclosure surrounded by an external environment and having an enclosure tray, an enclosure cover, and a rail structure. The RESS also includes a plurality of mechanically interconnected battery cell blocks arranged in the RESS enclosure. Each battery cell block includes a cell case having at least one interface connector configured to couple the cell case to the rail structure, such that each battery cell block is engaged with and aligned and supported by the rail structure.Type: ApplicationFiled: September 13, 2023Publication date: March 13, 2025Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Derek F. Lahr, Arun M. Joshi, Liang Xi, Francis A. Carpenter, Matthew Simonin, Qaiser Khan, SriLakshmi Katar, Jung Woo Seo, Ryan J. Prescott
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Publication number: 20250062479Abstract: A battery assembly of a vehicle includes a battery cell, and a cell holder in which the battery cell is located. The cell holder includes a holder base, and one or more holder legs extending downwardly from the holder base. A plurality of cell vents extend through the holder base. The plurality of cell vents are configured to relieve a pressure of the battery cell in the occurrence of a thermal event.Type: ApplicationFiled: August 15, 2023Publication date: February 20, 2025Inventors: Fengkun Wang, Liang Xi, Lei Wang, Rachel Hysong, SriLakshmi Katar
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Publication number: 20250062475Abstract: A modular multi-cell rechargeable energy storage system (RESS) includes a RESS enclosure surrounded by an external environment and having an enclosure tray and an enclosure cover. The RESS also includes a plurality of battery cell blocks arranged in the RESS enclosure. Each battery cell block includes a cell case including a cell vent and at least one electrically insulated structural connector configured to link the cell case with an adjacent battery cell block. Each battery cell block also includes a thermal mitigation barrier (TMB) segment fixed to the cell case and configured to contact the adjacent battery cell block. Each battery cell block additionally includes a thermal insulator configured to line the cell vent. Furthermore, each battery cell block includes a bus bar segment configured to interconnect with a bus bar segment of the adjacent battery cell block.Type: ApplicationFiled: August 14, 2023Publication date: February 20, 2025Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Derek F. Lahr, Xiaoling Chen, Arun M. Joshi, Madhusudan Raghavan, Liang Xi, Masoud Mohammad Pour
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Publication number: 20250023088Abstract: A hexagonal battery cell. The battery cell may include a wound jelly roll within a hexagonally shaped case. The jelly roll may include a separator layer sandwiched between a cathode layer and an anode layer, with the separator, cathode, and anode layers wound together relative to a central axis. The hexagonally shaped case may surround a perimeter of the jelly roll.Type: ApplicationFiled: July 13, 2023Publication date: January 16, 2025Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Liang Xi, Michael V. Pyrtko, SriLakshmi Katar, Michael A. Lelli
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Publication number: 20250015384Abstract: A mechanical design of a rechargeable battery cell (e.g., a Lithium-ion battery) disposed inside of a prismatic can, for use in electric vehicles and other electric-powered devices. The improved design uses a thermally conductive insert to divide the battery cell into two adjacent volumes that each hold a pair of stacked layers of a battery cell. This thermally conductive insert conducts heat from the center of the battery cell during battery recharging to actively-cooled channels disposed in a pair of cooling manifolds that are disposed on two vertical sides of the battery cell. Alternatively, or additionally, an actively-cooled bottom cold plate can be used. The pair of stacked battery layers can each be wound in a “jelly-roll” geometric configuration. The thermally conductive insert may be made of aluminum, aluminum alloy, copper, or copper alloy, and combinations thereof.Type: ApplicationFiled: July 6, 2023Publication date: January 9, 2025Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Liang Xi, Alexander M. Bilinski, Lei Wang, Srikant Srinivasan, SriLakshmi Katar
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Publication number: 20240421449Abstract: A battery cell includes a case and an electrode stack disposed within the case. The battery cell includes an anode including a first conductive tab, a cathode including a second conductive tab, and a separator. The battery cell further includes two electrical connections, each attached to one of the first conductive tab or the second conductive tab and to one of a negative terminal and a positive terminal, respectively. The anode, the cathode, and the separator each include a common perimeter including a first portion matching a shape of an interior surface of the case and a second portion including a cut-out configured to recede from the interior surface. The second portion of the anode, the cathode, and the separator are aligned and create a region between the stack and the interior surface. The tabs and electrical connections are disposed within the region.Type: ApplicationFiled: June 15, 2023Publication date: December 19, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Binsong Li, Liang Xi, SriLakshmi Katar
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Publication number: 20240421407Abstract: A battery cell for a vehicle includes a cell can having a first wall, a second wall, a first side wall and a second side wall. The first wall, the second wall, the first side wall, and the second side wall defining an electrode stack receiving zone. A vent is formed in the second wall. The vent is spaced from the first side wall and the second side wall. The vent fluidically connects the electrode stack receiving zone with an exterior of the cell can. An electrode stack is positioned in the electrode stack receiving zone. The electrode stack is spaced from of the first side wall by a channel. A cell stack support is arranged in the electrode stack receiving zone and supporting the electrode stack above the second wall. The cell stack support includes at least one passage that transports gases from the channel to the vent.Type: ApplicationFiled: June 15, 2023Publication date: December 19, 2024Inventors: Lei Wang, Fengkun Wang, Liang Xi, Linan Zheng, SriLakshmi Katar, Arturo Sanchez Perez
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Publication number: 20240421436Abstract: A battery cell for a vehicle includes a cell can having a first wall, a second wall, a first side wall and a second side wall. The first wall, the second wall, the first side wall, and the second side wall defining an electrode stack receiving zone. A vent formed in the second wall. The vent fluidically connects the electrode stack receiving zone with an exterior of the cell can. An electrode stack is positioned in the electrode stack receiving zone. The electrode stack is spaced from of the first side wall by a channel. The cell can includes a plurality of raised ribs formed in the second wall. Each of the plurality of raised ribs includes a support surface. The electrode stack rests on the support surface in the electrode stack receiving zone.Type: ApplicationFiled: June 15, 2023Publication date: December 19, 2024Inventors: Liang Xi, Fengkun Wang, Lei Wang, SriLakshmi Katar
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Publication number: 20240387854Abstract: A prismatic battery cell is provided. The prismatic battery cell includes a hard outer case including an internal volume and an electrode stack or a jelly roll electrode disposed within the internal volume. The prismatic battery cell further includes a foam structure disposed within the internal volume. The foam structure is configured for applying a desirable pressure upon the electrode stack or the jelly roll electrode and for compressing when the electrode stack or the jelly roll electrode expands.Type: ApplicationFiled: May 19, 2023Publication date: November 21, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Sherman H. Zeng, Liang Xi, Binsong Li, SriLakshmi Katar
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Publication number: 20240356176Abstract: A prismatic battery cell assembly has a prismatic container that includes a body portion composed of opposed first and second side portions, opposed first and second end portions, a bottom portion, and a top portion. An electrode stack is composed as anodes interleaved with cathodes. Each of the anodes includes a first current collector having an uncoated anode current collector portion that extends in a first direction away from the electrode stack, and each of the cathodes includes a second current collector having an uncoated cathode current collector portion that extends in a second direction away from the electrode stack. A first terminal is joined to the uncoated anode current collector portions of the first current collectors of the anodes, and a terminal is joined to the uncoated cathode current collector portions of the second current collectors of the cathodes.Type: ApplicationFiled: April 20, 2023Publication date: October 24, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Andrew P. Oury, Liang Xi, Binsong Li, SriLakshmi Katar
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Publication number: 20240234856Abstract: An apparatus including a battery cell includes an electrode stack. The electrode stack includes an anode electrode, a cathode electrode, and a separator disposed between the anode electrode and the cathode electrode. The apparatus further includes an enclosure configured for encasing and mechanically protecting the electrode stack. The apparatus further includes an electrolyte. The apparatus further includes a thermally conductive and electrically insulated inert fill material located between the electrode stack and the enclosure configured for providing a thermally conductive connection between the electrode stack and the enclosure.Type: ApplicationFiled: October 20, 2022Publication date: July 11, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Liang Xi, Andrew P. Oury, Li Yang, SriLakshmi Katar
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Publication number: 20240136612Abstract: An apparatus including a battery cell includes an electrode stack. The electrode stack includes an anode electrode, a cathode electrode, and a separator disposed between the anode electrode and the cathode electrode. The apparatus further includes an enclosure configured for encasing and mechanically protecting the electrode stack. The apparatus further includes an electrolyte. The apparatus further includes a thermally conductive and electrically insulated inert fill material located between the electrode stack and the enclosure configured for providing a thermally conductive connection between the electrode stack and the enclosure.Type: ApplicationFiled: October 19, 2022Publication date: April 25, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Liang Xi, Andrew P. Oury, Li Yang, SriLakshmi Katar
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Publication number: 20240105982Abstract: An apparatus for prismatic battery cell is provided. The apparatus includes a hard outer case defining an internal volume. The apparatus further includes an electrode stack disposed within the internal volume and includes a pair of an anode electrode and a cathode electrode. The electrode stack further includes a plurality of electrode pair layers stacked parallel to each other. The electrode pair layers each include a planar surface. The apparatus further includes a built-in spring configured for pressing against the electrode stack in a direction perpendicular to the planar surface of each of the electrode pair layers.Type: ApplicationFiled: September 22, 2022Publication date: March 28, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Liang Xi, Binsong Li, SriLakshmi Katar