Patents by Inventor Chang-Jun Bae

Chang-Jun Bae 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).

  • Publication number: 20240113852
    Abstract: A wireless communication system, according to one embodiment of the present invention, comprises: a first communication module; and at least one second communication module wirelessly connected to the first communication module, wherein the first communication module is wirelessly connected to the second communication module to which driving power is applied from the same power source as that of the first communication module.
    Type: Application
    Filed: February 10, 2022
    Publication date: April 4, 2024
    Inventors: Chang Hoon YOO, Sung Jun BAE, Jeong Hyeon SON, Seung Taek WOO, So Yeon HAM
  • Patent number: 10777855
    Abstract: A battery includes a folded bicell battery stack with an embedded fiber optic cable and sensor. A cell casing encloses the bicell stack with at least one fiber optic cable is embedded within the battery. The fiber optic cable includes an internal portion disposed within the cell casing and having at least one optical sensor disposed thereon. An external portion of the fiber optic cable protrudes from the casing. A sealing gasket is disposed at least partially around the fiber optic cable and between the cell sealing edges at a point of entry of the fiber optic cable into the battery.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: September 15, 2020
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Ajay Raghavan, Peter Kiesel, Lars Wilko Sommer, Bhaskar Saha, Saroj Sahu, Alexander Lochbaum, Tobias Staudt, Chang-Jun Bae, Mohamed Alamgir, Hoe Jin Hah, Bokkyu Choi, Gyu-Ok Hwang, Geun-Chang Chung
  • Publication number: 20200006818
    Abstract: A battery includes a folded bicell battery stack with an embedded fiber optic cable and sensor. A cell casing encloses the bicell stack with at least one fiber optic cable is embedded within the battery. The fiber optic cable includes an internal portion disposed within the cell casing and having at least one optical sensor disposed thereon. An external portion of the fiber optic cable protrudes from the casing. A sealing gasket is disposed at least partially around the fiber optic cable and between the cell sealing edges at a point of entry of the fiber optic cable into the battery.
    Type: Application
    Filed: September 3, 2019
    Publication date: January 2, 2020
    Inventors: Ajay Raghavan, Peter Kiesel, Lars Wilko Sommer, Bhaskar Saha, Saroj Sahu, Alexander Lochbaum, Tobias Staudt, Chang-Jun Bae, Mohamed Alamgir, Hoe Jin Hah, Bokkyu Choi, Gyu-Ok Hwang, Geun-Chang Chung
  • Patent number: 10446886
    Abstract: A battery includes a folded bicell battery stack with an embedded fiber optic cable and sensor. A cell casing encloses the bicell stack with at least one fiber optic cable is embedded within the battery. The fiber optic cable includes an internal portion disposed within the cell casing and having at least one optical sensor disposed thereon. An external portion of the fiber optic cable protrudes from the casing. A sealing gasket is disposed at least partially around the fiber optic cable and between the cell sealing edges at a point of entry of the fiber optic cable into the battery.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: October 15, 2019
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Ajay Raghavan, Peter Kiesel, Lars Wilko Sommer, Bhaskar Saha, Saroj Sahu, Alexander Lochbaum, Tobias Staudt, Chang-Jun Bae, Mohamed Alamgir, Hoe Jin Hah, Bokkyu Choi, Gyu-Ok Hwang, Geun-Chang Chung
  • Patent number: 10403922
    Abstract: A method of fabricating an electrochemical energy storage cell such as a battery or supercapacitor involves positioning a portion of a fiber optic cable that includes at least one optical fiber sensor over a current collector layer. The electrode material of the energy storage cell is deposited over the current collector layer and the fiber optic cable.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: September 3, 2019
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Chang-Jun Bae, Eric J. Shrader, Ajay Raghavan, Peter Kiesel, Saroj Sahu
  • Patent number: 10256503
    Abstract: A battery has a lithium anode, a separator adjacent the anode, and a cathode adjacent the separator opposite the anode, the cathode comprising interdigitated stripes of a first and second material, wherein the first material contains sulfur and the second material comprises a solid electrolyte.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: April 9, 2019
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Chang-Jun Bae, Ranjeet Rao, Eric J. Shrader
  • Patent number: 10164242
    Abstract: 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: Grant
    Filed: May 19, 2015
    Date of Patent: December 25, 2018
    Assignees: Massachusetts Institute of Technology, The Regents of the University of Michigan, The Regents of the University of California
    Inventors: Yet-Ming Chiang, Chang-Jun Bae, John William Halloran, Qiang Fu, Antoni P. Tomsia, Can K. Erdonmez
  • Patent number: 10115964
    Abstract: An electrode has a first set of stripes of a graphite-containing material, and a second set of stripes of silicon-containing material interdigitated with the first set of stripes. A method of manufacturing an electrode includes extruding first and second materials simultaneously onto a substrate in interdigitated stripes, wherein the first material comprises a graphite-containing material and the second material comprises a silicon-containing material.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: October 30, 2018
    Assignee: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: Chang-Jun Bae, Eric J. Shrader, Jessy Rivest
  • Patent number: 10103381
    Abstract: An electrode having a first set of stripes of sulfur-containing materials forming electroactive regions and a second set of stripes of a material forming non-electroactive regions interdigitated with the first set of stripes.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: October 16, 2018
    Assignee: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: Chang-Jun Bae, Eric J. Shrader, Ranjeet Rao
  • Patent number: 9882200
    Abstract: A battery has an anode, a separator adjacent the anode, and a cathode adjacent the separator opposite the anode, the cathode comprising interdigitated stripes of two different types, one of the types forming pore channels or porous structure and one of the types being more compressible than others type.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: January 30, 2018
    Assignee: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: Chang-Jun Bae, Eric J. Shrader, Ashish Manandhar
  • Patent number: 9793537
    Abstract: A three dimensional electrode structure having a first layer of interdigitated stripes of material oriented in a first direction, and a second layer of interdigitated stripes of material oriented in a second direction residing on the first layer of interdigitated stripes of material. A method of manufacturing a three dimensional electrode structure includes depositing a first layer of interdigitated stripes of an active material and an intermediate material on a substrate in a first direction, and depositing a second layer of interdigitated stripes of the active material and the intermediate material on the first layer in a second direction orthogonal to the first direction.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: October 17, 2017
    Assignee: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: Corie Lynn Cobb, Chang-Jun Bae
  • Publication number: 20170162858
    Abstract: A three dimensional electrode structure having a first layer of interdigitated stripes of material oriented in a first direction, and a second layer of interdigitated stripes of material oriented in a second direction residing on the first layer of interdigitated stripes of material. A method of manufacturing a three dimensional electrode structure includes depositing a first layer of interdigitated stripes of an active material and an intermediate material on a substrate in a first direction, and depositing a second layer of interdigitated stripes of the active material and the intermediate material on the first layer in a second direction orthogonal to the first direction.
    Type: Application
    Filed: February 17, 2017
    Publication date: June 8, 2017
    Inventors: CORIE LYNN COBB, CHANG-JUN BAE
  • Patent number: 9590232
    Abstract: A three dimensional electrode structure having a first layer of interdigitated stripes of material oriented in a first direction, and a second layer of interdigitated stripes of material oriented in a second direction residing on the first layer of interdigitated stripes of material. A method of manufacturing a three dimensional electrode structure includes depositing a first layer of interdigitated stripes of an active material and an intermediate material on a substrate in a first direction, and depositing a second layer of interdigitated stripes of the active material and the intermediate material on the first layer in a second direction orthogonal to the first direction.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: March 7, 2017
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Corie Lynn Cobb, Chang-Jun Bae
  • Publication number: 20160365557
    Abstract: An electrochemical separator film includes a polymer, and particles of a first inorganic material having a first particle size suspended in the polymer. An electrochemical cell structure, includes at least one electrode on a substrate, and a separator film residing on top of the electrode, wherein the separator film comprises a polymer, and particles of a first inorganic material having a first particle size suspended in the polymer. A method of manufacturing a separator film, includes combining a polymer with a solvent for the polymer to form a polymer solution, mixing particles of a first inorganic material with the polymer, the particles having a first particle size to produce a separator mixture, depositing the separator mixture onto a substrate, and drying the separator mixture until the solvent and non-solvent are no longer present forming the separator film.
    Type: Application
    Filed: June 9, 2015
    Publication date: December 15, 2016
    Inventors: RANJEET RAO, CHANG-JUN BAE, SCOTT E. SOLBERG
  • Publication number: 20160164079
    Abstract: An electrode has a first set of stripes of a graphite-containing material, and a second set of stripes of silicon-containing material interdigitated with the first set of stripes. A method of manufacturing an electrode includes extruding first and second materials simultaneously onto a substrate in interdigitated stripes, wherein the first material comprises a graphite-containing material and the second material comprises a silicon-containing material.
    Type: Application
    Filed: December 8, 2014
    Publication date: June 9, 2016
    Inventors: CHANG-JUN BAE, ERIC J. SHRADER, JESSY RIVEST
  • Publication number: 20160104881
    Abstract: An electrode having a first set of stripes of sulfur-containing materials forming electroactive regions and a second set of stripes of a material forming non-electroactive regions interdigitated with the first set of stripes.
    Type: Application
    Filed: October 10, 2014
    Publication date: April 14, 2016
    Inventors: CHANG-JUN BAE, ERIC J. SHRADER, RANJEET RAO
  • Publication number: 20160036047
    Abstract: A battery has an anode, a separator adjacent the anode, and a cathode adjacent the separator opposite the anode, the cathode comprising interdigitated stripes of two different types, one of the types forming pore channels or porous structure and one of the types being more compressible than others type.
    Type: Application
    Filed: July 31, 2014
    Publication date: February 4, 2016
    Inventors: CHANG-JUN BAE, ERIC J. SHRADER, ASHISH MANANDHAR
  • Publication number: 20160028129
    Abstract: A battery includes a folded bicell battery stack with an embedded fiber optic cable and sensor. A cell casing encloses the bicell stack with at least one fiber optic cable is embedded within the battery. The fiber optic cable includes an internal portion disposed within the cell casing and having at least one optical sensor disposed thereon. An external portion of the fiber optic cable protrudes from the casing. A sealing gasket is disposed at least partially around the fiber optic cable and between the cell sealing edges at a point of entry of the fiber optic cable into the battery.
    Type: Application
    Filed: July 23, 2014
    Publication date: January 28, 2016
    Inventors: Ajay Raghavan, Peter Kiesel, Lars Wilko Sommer, Bhaskar Saha, Saroj Sahu, Alexander Lochbaum, Tobias Staudt, Chang-Jun Bae, Mohamed Alamgir, Hoe Jin Hah, Bokkyu Choi, Gyu-Ok Hwang, Geun-Chang Chung
  • Publication number: 20160028102
    Abstract: A method of fabricating an electrochemical energy storage cell such as a battery or supercapacitor involves positioning a portion of a fiber optic cable that includes at least one optical fiber sensor over a current collector layer. The electrode material of the energy storage cell is deposited over the current collector layer and the fiber optic cable.
    Type: Application
    Filed: July 23, 2014
    Publication date: January 28, 2016
    Inventors: Chang-Jun Bae, Eric J. Shrader, Ajay Raghavan, Peter Kiesel, Saroj Sahu
  • Publication number: 20160013512
    Abstract: A battery has a lithium anode, a separator adjacent the anode, and a cathode adjacent the separator opposite the anode, the cathode comprising interdigitated stripes of a first and second material, wherein the first material contains sulfur and the second material comprises a solid electrolyte.
    Type: Application
    Filed: July 11, 2014
    Publication date: January 14, 2016
    Inventors: CHANG-JUN BAE, RANJEET RAO, ERIC J. SHRADER