Patents Assigned to TeraWatt Technology Inc.
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Patent number: 11848413Abstract: Provided herein are various battery cell embodiments. A battery cell can have a solid electrolyte. The electrolyte can be arranged within the cavity. The battery cell can have a cathode disposed within the cavity along a first side of the electrolyte. The battery cell can have a functional layer disposed within the cavity along a second side of the electrolyte. A first side of the functional layer can be in contact with a second side of the electrolyte. The functional layer can form an alloy with lithium material received via the electrolyte. The battery cell can have a scaffold layer disposed within the cavity along a second side of the functional layer.Type: GrantFiled: April 5, 2021Date of Patent: December 19, 2023Assignee: Terawatt Technology Inc.Inventors: Ken Ogata, Hiroshi Imoto
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Publication number: 20230335781Abstract: A battery cell having a layered pressure homogenizing soft medium for liquid/solid state Li-ion rechargeable batteries. The battery cell of the present technology includes one or more battery pouches, a pressure mechanism external to the battery pouches that applies a pressure to the battery pouches, and a layered pressure homogenizing soft medium that is displaced between the battery pouches and the pressure mechanism. By using a number of pressure homogenizing medium layers, each with a specific range of thickness and within a range of physical properties, the battery pouches displaced between the pressure homogenizing medium layers are evenly pressurized by the mediums due to pressure applied by the pressure mechanism to within a desired range of pressure. The pressure applied to the battery pouches by the pressure homogenizing medium is monitored by a pressure sensor, such as a two-dimensional pressure sensor.Type: ApplicationFiled: December 1, 2022Publication date: October 19, 2023Applicant: TeraWatt Technology Inc.Inventors: Ken Ogata, Yang Yang, Hajime Hoshi, Masatsugu Nakano, Hiroshi Imoto
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Patent number: 11695149Abstract: Various arrangements for compressing a cylindrical battery cell are presented herein. The cylindrical battery cell may be wrapped in a buffer material. The buffer material may then be compressed using a compression mechanism. The buffer material may uniformly distribute pressure applied to the buffer material to a curved sidewall of the cylindrical battery cell.Type: GrantFiled: February 19, 2021Date of Patent: July 4, 2023Assignee: TeraWatt Technology Inc.Inventors: Ken Ogata, Yang Yang, Hajime Hoshi, Masatsugu Nakano, Hiroshi Imoto
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Publication number: 20230028855Abstract: Various variable planar pouch battery pressure optimization systems are presented. The system may include a first and second plate, between which a planar pouch battery cell is installed. Multiple pressure application components may be individually controlled to apply varying pressure to the first and second plate. Various pressure patterns may be tested in order to determine a pressure pattern that optimizes at least one electrical characteristic of the planar pouch battery cell.Type: ApplicationFiled: May 4, 2022Publication date: January 26, 2023Applicant: TeraWatt Technology Inc.Inventors: Ken Ogata, Yang Yang, Hajime Hoshi, Masatsugu Nakano, Hiroshi Imoto
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Patent number: 11522212Abstract: A battery cell having a layered pressure homogenizing soft medium for liquid/solid state Li-ion rechargeable batteries. The battery cell of the present technology includes one or more battery pouches, a pressure mechanism external to the battery pouches that applies a pressure to the battery pouches, and a layered pressure homogenizing soft medium that is displaced between the battery pouches and the pressure mechanism. By using a number of pressure homogenizing medium layers, each with a specific range of thickness and within a range of physical properties, the battery pouches displaced between the pressure homogenizing medium layers are evenly pressurized by the mediums due to pressure applied by the pressure mechanism to within a desired range of pressure. The pressure applied to the battery pouches by the pressure homogenizing medium is monitored by a pressure sensor, such as a two-dimensional pressure sensor.Type: GrantFiled: September 22, 2019Date of Patent: December 6, 2022Assignee: TeraWatt Technology Inc.Inventors: Ken Ogata, Yang Yang, Hajime Hoshi, Masatsugu Nakano, Hiroshi Imoto
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Patent number: 11515539Abstract: Various arrangements of an anode-free battery cell are presented herein. The battery cell can include a lithium ion buffer layer that is located between a electrolyte and an anode current collector. Lithium ions may be stored within the lithium ion buffer layer when the battery cell is charged, which can decrease an amount of swelling within the battery cell.Type: GrantFiled: July 2, 2021Date of Patent: November 29, 2022Assignee: TeraWatt Technology Inc.Inventors: Ken Ogata, Yang Yang, Hajime Hoshi, Masatsugu Nakano, Hiroshi Imoto
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Patent number: 11462804Abstract: Various battery cell arrangements are presented herein. The battery cell can include an anode current collector. The battery cell can include a carbon-based anode coating layer that coats the anode current collector. A first bond between the anode current collector and the anode coating layer may have a first adhesion strength. The battery cell also includes a cathode, a separator layer that contacts the cathode, and a separator coating layer. The separator coating layer can be positioned between the anode coating layer and the separator layer. A second bond between the separator coating material and the anode coating material has a second adhesion strength. The second adhesion strength of the second bond may be greater than the first adhesion strength of the first bond.Type: GrantFiled: January 8, 2019Date of Patent: October 4, 2022Assignee: TeraWatt Technology Inc.Inventors: Hiroshi Imoto, Ken Ogata, Juichi Arai, Yang Yang
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Patent number: 11335943Abstract: Various variable planar pouch battery pressure optimization systems are presented. The system may include a first and second plate, between which a planar pouch battery cell is installed. Multiple pressure application components may be individually controlled to apply varying pressure to the first and second plate. Various pressure patterns may be tested in order to determine a pressure pattern that optimizes at least one electrical characteristic of the planar pouch battery cell.Type: GrantFiled: August 1, 2019Date of Patent: May 17, 2022Assignee: TeraWatt Technology Inc.Inventors: Ken Ogata, Yang Yang, Hajime Hoshi, Masatsugu Nakano, Hiroshi Imoto
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Patent number: 11271253Abstract: Various arrangements for creating a cylindrical anti-dendrite anode-free solid-state battery are presented. An anti-dendrite layer may be layered between an anode current collector layer and the cathode layer. A layered stack may be created that comprises a dry separator layer, a cathode layer layered with a cathode current collector layer, and the anti-dendrite layer layered with the anode current collector layer. The layered stack may be rolled into a cylindrical jelly roll. The rolled layered stack may be inserted into a pouch. A liquid electrolyte mixture may be added into the pouch. The liquid electrolyte mixture can permeate the dry separator layer. Heat can be applied to the pouch that causes the liquid electrolyte mixture to become a gel. The rolled layered stack can then be removed from the pouch and inserted into a cylindrical battery cell canister.Type: GrantFiled: July 29, 2019Date of Patent: March 8, 2022Assignee: TeraWatt Technology Inc.Inventors: Ken Ogata, Yang Yang, Hajime Hoshi, Jungho Kim, Masatsugu Nakano, Hiroshi Imoto
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Publication number: 20210344034Abstract: Various arrangements of pressurized battery modules are detailed herein. Such a pressurized battery module may include a sealed battery module housing. The pressurized battery module may include multiple pouch cells. Each pouch cell may be located within the sealed battery module housing. The pressurized battery module may further include an insulative oil that is pressurized within the sealed housing. This insulative oil may exert pressure on an external surface of each pouch cell within the pressurized battery module.Type: ApplicationFiled: July 15, 2021Publication date: November 4, 2021Applicant: TeraWatt Technology Inc.Inventors: Ken Ogata, Yang Yang, Hajime Hoshi, Ying Liu
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Publication number: 20210336270Abstract: Various arrangements of an anode-free battery cell are presented herein. The battery cell can include a lithium ion buffer layer that is located between a electrolyte and an anode current collector. Lithium ions may be stored within the lithium ion buffer layer when the battery cell is charged, which can decrease an amount of swelling within the battery cell.Type: ApplicationFiled: July 2, 2021Publication date: October 28, 2021Applicant: TeraWatt Technology Inc.Inventors: Ken Ogata, Yang Yang, Hajime Hoshi, Masatsugu Nakano, Hiroshi Imoto
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Patent number: 11108075Abstract: Various arrangements of pressurized battery modules are detailed herein. Such a pressurized battery module may include a sealed battery module housing. The pressurized battery module may include multiple pouch cells. Each pouch cell may be located within the sealed battery module housing. The pressurized battery module may further include an insulative oil that is pressurized within the sealed housing. This insulative oil may exert pressure on an external surface of each pouch cell within the pressurized battery module.Type: GrantFiled: December 11, 2018Date of Patent: August 31, 2021Assignee: TeraWatt Technology Inc.Inventors: Ken Ogata, Yang Yang, Hajime Hoshi, Ying Liu
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Publication number: 20210226249Abstract: Provided herein are various battery cell embodiments. A battery cell can have a solid electrolyte. The electrolyte can be arranged within the cavity. The battery cell can have a cathode disposed within the cavity along a first side of the electrolyte. The battery cell can have a functional layer disposed within the cavity along a second side of the electrolyte. A first side of the functional layer can be in contact with a second side of the electrolyte. The functional layer can form an alloy with lithium material received via the electrolyte. The battery cell can have a scaffold layer disposed within the cavity along a second side of the functional layer.Type: ApplicationFiled: April 5, 2021Publication date: July 22, 2021Applicant: TeraWatt Technology Inc.Inventors: Ken Ogata, Hiroshi Imoto
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Patent number: 11069897Abstract: Various arrangements of an anode-free solid-state battery cell are presented herein. The battery cell can include a lithium ion buffer layer that is located between a solid-state electrolyte and an anode current collector. Lithium ions may be stored within the lithium ion buffer layer when the battery cell is charged, which can decrease an amount of swelling within the battery cell.Type: GrantFiled: May 16, 2019Date of Patent: July 20, 2021Assignee: TeraWatt Technology Inc.Inventors: Ken Ogata, Yang Yang, Hajime Hoshi, Masatsugu Nakano, Hiroshi Imoto
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Publication number: 20210175534Abstract: Various arrangements for compressing a cylindrical battery cell are presented herein. The cylindrical battery cell may be wrapped in a buffer material. The buffer material may then be compressed using a compression mechanism. The buffer material may uniformly distribute pressure applied to the buffer material to a curved sidewall of the cylindrical battery cell.Type: ApplicationFiled: February 19, 2021Publication date: June 10, 2021Applicant: TeraWatt Technology Inc.Inventors: Ken Ogata, Yang Yang, Hajime Hoshi, Masatsugu Nakano, Hiroshi Imoto
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Patent number: 11024877Abstract: Provided herein are apparatus, systems, and methods of powering electric vehicles. A battery pack can be disposed in an electric vehicle to power the electric vehicle. The apparatus can include a battery cell. A battery cell can have a housing that defines a cavity. The battery cell can have a solid electrolyte. The electrolyte can be arranged within the cavity. The battery cell can have a cathode disposed within the cavity along a first side of the electrolyte. The battery cell can have a functional layer disposed within the cavity along a second side of the electrolyte. A first side of the functional layer can be in contact with a second side of the electrolyte. The functional layer can form an alloy with lithium material received via the electrolyte. The battery cell can have a scaffold layer disposed within the cavity along a second side of the functional layer.Type: GrantFiled: December 4, 2018Date of Patent: June 1, 2021Assignee: TeraWatt Technology Inc.Inventors: Ken Ogata, Hiroshi Imoto
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Patent number: 10992004Abstract: A solid state battery cell can include a first polarity terminal, a second polarity terminal and a housing defining a cavity and functioning as a current collector for the first polarity terminal. The battery cell can include a membrane disposed in the cavity and dividing the cavity into a first portion and a second portion, an electrically conductive pin functioning as a current collector for the second polarity terminal, and an insulator electrically isolating the electrically conductive pin from the housing. A solid state anode material, including solid state anode particles, first solid state electrolyte particles and a first conductive additive, can be disposed in the first portion of the cavity. A solid state cathode material, including solid state cathode particles, second solid state electrolyte particles and a second conductive additive, can be disposed in the second portion of the cavity.Type: GrantFiled: December 28, 2018Date of Patent: April 27, 2021Assignee: TeraWatt Technology Inc.Inventors: Derek Nathan Wong, Scott Quinlan Freeman Monismith, Jeremy Elsberry, Brennan Campbell, Ying Liu, Yifan Tang
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Publication number: 20210104747Abstract: A battery cell having a cathode, an anode, an electrolyte, and a dendrite absorber material. The dendrite absorber material reacts with lithium dendrite that forms on the anode after cycling the battery cell through charging and discharging cycles. The dendrite absorption material interacts with the lithium dendrite via lithium fusion. As a result of the lithium fusion, the dendrite absorber forms a lithium alloy and prevents expansion of the dendrite past the dendrite absorber material within the cell battery. This helps prevent short-circuiting between the anode and cathode due to lithium dendrite, which would cause performance degradation and safety issues such as fires.Type: ApplicationFiled: October 8, 2019Publication date: April 8, 2021Applicant: TeraWatt Technology Inc.Inventors: Ken Ogata, Yang Yang, Hajime Hoshi, Masatsugu Nakano, Hiroshi Imoto
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Publication number: 20210091403Abstract: A battery cell having a layered pressure homogenizing soft medium for liquid/solid state Li-ion rechargeable batteries. The battery cell of the present technology includes one or more battery pouches, a pressure mechanism external to the battery pouches that applies a pressure to the battery pouches, and a layered pressure homogenizing soft medium that is displaced between the battery pouches and the pressure mechanism. By using a number of pressure homogenizing medium layers, each with a specific range of thickness and within a range of physical properties, the battery pouches displaced between the pressure homogenizing medium layers are evenly pressurized by the mediums due to pressure applied by the pressure mechanism to within a desired range of pressure. The pressure applied to the battery pouches by the pressure homogenizing medium is monitored by a pressure sensor, such as a two-dimensional pressure sensor.Type: ApplicationFiled: September 22, 2019Publication date: March 25, 2021Applicant: TeraWatt Technology Inc.Inventors: Ken Ogata, Yang Yang, Hajime Hoshi, Masatsugu Nakano, Hiroshi Imoto
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Patent number: 10957935Abstract: Various arrangements for compressing a cylindrical battery cell are presented herein. The cylindrical battery cell may be wrapped in a buffer material. The buffer material may then be compressed using a compression mechanism. The buffer material may uniformly distribute pressure applied to the buffer material to a curved sidewall of the cylindrical battery cell. The cylindrical battery cell may be heated while the buffer material is being compressed using the compression mechanism.Type: GrantFiled: May 14, 2019Date of Patent: March 23, 2021Assignee: TeraWatt Technology Inc.Inventors: Ken Ogata, Yang Yang, Hajime Hoshi, Masatsugu Nakano, Hiroshi Imoto