Patents by Inventor Yu-Sheng Su

Yu-Sheng Su 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: 20210111403
    Abstract: An electrochemical battery cell comprising an anode having a primary anode active material, a cathode, and an ion-conducting electrolyte, wherein the cell has an initial output voltage, Vi, measured at 10% depth of discharge (DoD), selected from a range from 0.3 volts to 0.8 volts, and a final output voltage Vf measured at a DoD no greater than 90%, wherein a voltage variation, (Vi?Vf)/Vi, is no greater than ±10% and the specific capacity between Vi and Vf is no less than 100 mAh/g or 200 mAh/cm3 based on the cathode active material weight or volume, and wherein the primary anode active material is selected from lithium (Li), sodium (Na), potassium (K), magnesium (Mg), aluminum (Al), zinc (Zn), titanium (Ti), manganese (Mn), iron (Fe), vanadium (V), cobalt (Co), nickel (Ni), a mixture thereof, an alloy thereof, or a combination thereof.
    Type: Application
    Filed: December 15, 2020
    Publication date: April 15, 2021
    Applicant: Global Graphene Group, Inc.
    Inventors: Yu-Sheng Su, Minjie Li, Hui He, Qing Fang, Aruna Zhamu, Bor Z. Jang
  • Publication number: 20210050597
    Abstract: Provided is anode active material for use in a lithium ion battery, wherein the anode active material is capable of reversibly storing lithium ions therein up to a maximum lithium storage capacity Cmax during a charge or discharge of the battery and the anode active material comprises an amount of solid-electrolyte interphase (SEI) on a surface or in an internal structure of the anode active material wherein the SEI is pre-formed prior to incorporating the anode active material in an anode electrode of the battery. Also provided is a method of producing the pre-formed SEI substances in the anode material; e.g. through repeated lithiation/delithiation procedures.
    Type: Application
    Filed: August 12, 2019
    Publication date: February 18, 2021
    Inventors: Yen-Po Lin, Yu-Chan Yen, Yu-Sheng Su, Bor Z. Jang
  • Publication number: 20210028507
    Abstract: Provided is a battery charging system comprising (a) at least one charging circuit to charge at least one rechargeable battery cell; (b) a heat source to provide heat that is transported through a heat spreader element, implemented fully or partially inside said at least one battery cell, to heat up the battery cell to a desired temperature Tc before or during battery charging; and (c) cooling means in thermal contact with the heat spreader element configured to enable transporting internal heat of the battery cell through the heat spreader element to the cooling means when the battery cell is discharged. Charging the battery at Tc enables completion of the battery in less than 15 minutes, typically less than 10 minutes, and more typically less than 5 minutes without adversely impacting the battery structure and performance.
    Type: Application
    Filed: July 24, 2019
    Publication date: January 28, 2021
    Applicant: Nanotek Instruments, Inc.
    Inventors: Yu-Sheng Su, Hao-Hsun Chang, Yu-Ming Chen, Bor Z. Jang
  • Publication number: 20210028509
    Abstract: Provided is a rechargeable battery comprising an anode, a cathode, an electrolyte disposed between the anode and the cathode, a protective housing that at least partially encloses the anode, the cathode and the electrolyte, a heat-spreader element disposed at least partially inside the protective housing and configured to receive heat from an external heat source at a desired heating temperature Th to heat up the battery to a desired temperature Tc for battery charging. Preferably, the heat-spreader element does not receive an electrical current from an external circuit (e.g. battery charger) to generate heat for resistance heating of the battery. Charging the battery at Tc enables completion of the battery in less than 15 minutes, typically less than 10 minutes, and more typically less than 5 minutes without adversely impacting the battery structure and performance.
    Type: Application
    Filed: July 23, 2019
    Publication date: January 28, 2021
    Applicant: Nanotek Instruments, Inc.
    Inventors: Yu-Sheng Su, Yu-Ming Chen, Hao-Hsun Chang, Bor Z. Jang
  • Patent number: 10903519
    Abstract: A rechargeable lithium cell comprising a cathode, an anode, a non-flammable electrolyte, wherein the electrolyte contains a lithium salt dissolved in a liquid solvent having a lithium salt concentration from 0.01 M to 10 M so that the electrolyte exhibits a vapor pressure less than 0.01 kPa when measured at 20° C., a vapor pressure less than 60% of the vapor pressure of the liquid solvent alone, a flash point at least 20 degrees Celsius higher than a flash point of the liquid solvent alone, a flash point higher than 200° C., or no flash point, wherein the liquid solvent contains a cooking oil selected from palm oil, palm olein, coconut oil, corn oil, soybean oil, cottonseed oil, peanut oil, sunflower oil, canola oil, rice bran oil, olive oil, sesame oil, safflower oil, avocado oil, flaxseed oil, grapeseed oil, walnut oil, almond oil, lard, or a combination thereof.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: January 26, 2021
    Assignee: Global Graphene Group, Inc.
    Inventors: Baofei Pan, Hui He, Yu-Sheng Su, Aruna Zhamu, Bor Z. Jang
  • Publication number: 20210021001
    Abstract: Provided is a rechargeable battery system comprising at least a battery cell and an external cooling means, wherein the battery cell comprises an anode, a cathode, an electrolyte disposed between the anode and the cathode, a protective housing that at least partially encloses the anode, the cathode and the electrolyte, and at least one heat-spreader element disposed partially or entirely inside the protective housing and wherein the external cooling means is in thermal contact with the heat spreader element configured to enable transporting internal heat of the battery through the heat spreader element to the external cooling means. Also provided is a method of operating a rechargeable battery system, the method comprising implementing a heat spreader element in one or each of a plurality of battery cells and bringing the heat spreader element in thermal contact with one or a plurality of external cooling means.
    Type: Application
    Filed: July 18, 2019
    Publication date: January 21, 2021
    Applicant: Nanotek Instruments, Inc.
    Inventors: Hao-Hsun Chang, Yu-Ming Chen, Yu-Sheng Su, Bor Z. Jang
  • Publication number: 20210021003
    Abstract: Provided is a rechargeable battery comprising an anode, a cathode, an electrolyte disposed between the anode and the cathode, a protective housing that at least partially encloses the anode, the cathode and the electrolyte, a heat-spreader element disposed at least partially inside the protective housing and configured to receive heat from an external heat source at a desired heating temperature Th to heat up the battery to a desired temperature Tc for battery charging. Preferably, the heat-spreader element does not receive an electrical current from an external circuit (e.g. battery charger) to generate heat for resistance heating of the battery. Charging the battery at Tc enables completion of the battery in less than 15 minutes, typically less than 10 minutes, and more typically less than 5 minutes without adversely impacting the battery structure and performance.
    Type: Application
    Filed: July 16, 2019
    Publication date: January 21, 2021
    Applicant: Nanotek Instruments, Inc.
    Inventors: Yu-Ming Chen, Hao-Hsun Chang, Yu-Sheng Su, Bor Z. Jang
  • Publication number: 20210013490
    Abstract: Provided is a prelithiated anode active material particle for use in a lithium-ion battery, the particle is capable of reversibly storing lithium ions therein during a charge or discharge of the battery and comprises an amount of lithium from 1% to 100% of a maximum lithium content that can be contained in the anode active material particle, having a first lithium concentration C1 near a particle surface and a second lithium concentration C2 inside the particle and away from the particle surface and wherein C1<C2.
    Type: Application
    Filed: July 8, 2019
    Publication date: January 14, 2021
    Applicant: Nanotek Instruments, Inc.
    Inventors: Yen-Po Lin, Yu-Sheng Su, Bor Z. Jang
  • Patent number: 10868304
    Abstract: An electrochemical battery cell comprising an anode having a primary anode active material, a cathode, and an ion-conducting electrolyte, wherein the cell has an initial output voltage, Vi, measured at 10% depth of discharge (DoD), selected from a range from 0.3 volts to 0.8 volts, and a final output voltage Vf measured at a DoD no greater than 90%, wherein a voltage variation, (Vi?Vf)/Vi, is no greater than ±10% and the specific capacity between Vi and Vf is no less than 100 mAh/g or 200 mAh/cm3 based on the cathode active material weight or volume, and wherein the primary anode active material is selected from lithium (Li), sodium (Na), potassium (K), magnesium (Mg), aluminum (Al), zinc (Zn), titanium (Ti), manganese (Mn), iron (Fe), vanadium (V), cobalt (Co), nickel (Ni), a mixture thereof, an alloy thereof, or a combination thereof.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: December 15, 2020
    Assignee: Global Graphene Group, Inc.
    Inventors: Yu-Sheng Su, Minjie Li, Hui He, Qing Fang, Aruna Zhamu, Bor Z. Jang
  • Publication number: 20200313162
    Abstract: Provided is method of producing graphene-embraced anode particulates for a lithium battery, the method comprising: (A) providing anode active material-decorated carbon or graphite particles, wherein the carbon or graphite particles have a diameter or thickness from 500 nm to 50 ?m and the anode active material, in a form of particles or coating having a diameter or thickness from 0.5 nm to 2 ?m, is bonded to surfaces of the carbon or graphite particles; and (B) embracing the anode active material-decorated carbon or graphite particles with a shell comprising multiple graphene sheets to produce the graphene-embraced anode particulates.
    Type: Application
    Filed: March 26, 2019
    Publication date: October 1, 2020
    Applicant: Nanotek Instruments, Inc.
    Inventors: Aruna Zhamu, Yu-Sheng Su, Bor Z. Jang
  • Publication number: 20200313170
    Abstract: Provided is graphene-embraced anode particulate for a lithium battery, the particulate comprising: (A) a core comprising one or a plurality of anode active material-decorated carbon or graphite particles, wherein the carbon or graphite particles have a diameter or thickness from 500 nm to 50 ?m and the anode active material, in a form of particles or coating having a diameter or thickness from 0.5 nm to 2 ?m, is bonded to or embedded into surfaces of the carbon or graphite particles; and (B) an embracing shell embracing or encapsulating the core, wherein the embracing shell comprises multiple graphene sheets and have a thickness from 0.34 nm to 5 ?m.
    Type: Application
    Filed: March 26, 2019
    Publication date: October 1, 2020
    Applicant: Nanotek Instruments, Inc.
    Inventors: Aruna Zhamu, Yu-Sheng Su, Bor Z. Jang
  • Patent number: 10734635
    Abstract: Provided is graphene-embraced particulate for use as a lithium-ion battery anode active material, wherein the particulate comprises primary particle(s) of an anode active material and multiple sheets of a first graphene material overlapped together to embrace or encapsulate the primary particle(s) and wherein a single or a plurality of graphene-encapsulated primary particles, along with an optional conductive additive, are further embraced or encapsulated by multiple sheets of a second graphene material, wherein the first graphene and the second graphene material is each in an amount from 0.01% to 20% by weight and the optional conductive additive is in an amount from 0% to 50% by weight, all based on the total weight of the particulate. Also provided are an anode and a battery comprising multiple graphene-embraced particulates.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: August 4, 2020
    Assignee: Global Graphene Group, Inc.
    Inventors: Aruna Zhamu, Hao-Hsun Chang, Yu-Sheng Su, Bor Z. Jang
  • Patent number: 10727479
    Abstract: Provided is a method of producing a mass of graphene-embraced particulates, comprising (A) peeling off graphene sheets from graphite particles and directly or indirectly transferring these graphene sheets to encapsulate primary particles of an anode active material using an energy-impact device, wherein multiple graphene sheets are overlapped together to embrace or encapsulate a primary particle; and (B) combining the resulting graphene-encapsulated primary particles with additional graphene sheets, along with an optional conductive additive, to form graphene-embraced particulates. Also provided are an anode electrode comprising multiple graphene-embraced particulates and a battery comprising such an anode electrode.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: July 28, 2020
    Assignee: Global Graphene Group, Inc.
    Inventors: Aruna Zhamu, Jun Yin, Jen-Hsien Yang, Yu-Sheng Su, Bor Z. Jang
  • Publication number: 20200227734
    Abstract: A process for producing a graphene/Si nanowire hybrid material, comprising: (a) dispersing catalyst metal-coated Si particles, graphene sheets, and an optional blowing agent in a liquid medium to form a graphene/Si dispersion; (b) dispensing and depositing the dispersion onto a supporting substrate to form a wet layer and removing the liquid medium from the wet layer to form a dried layer of graphene/Si mixture material; (c) exposing the dried layer to a high temperature environment, from 300° C. to 2,000° C., to induce volatile gas molecules from graphene sheets or to activate the blowing agent for producing the graphene foam and to enable a catalyst metal-catalyzed growth of multiple Si nanowires emanated from Si particles as a feed material in pores of the foam to form a layer of the hybrid material; and (d) operating a mechanical breaking means to produce the Si nanowire/graphene hybrid material in a powder mass form.
    Type: Application
    Filed: January 14, 2019
    Publication date: July 16, 2020
    Applicant: Nanotek Instruments, Inc.
    Inventors: Aruna Zhamu, Yu-Sheng Su, Jun Yin, Bor Z. Jang
  • Publication number: 20200227730
    Abstract: Provided is a powder mass of a graphene/Si nanowire hybrid material as a lithium-ion battery anode active material, comprising multiple Si nanowires inter-mixed with multiple graphene sheets wherein the Si nanowires have a diameter from 2 nm to 50 nm, a length from 50 nm to 20 ?m and a radius of curvature from 100 nm to 10 ?m, and the Si nanowires are in an amount from 0.5% to 99%. Preferably, the powder mass comprises multiple secondary particles or particulates and at least one of the particulates comprises a core and a shell embracing the core, wherein the core comprises a single or a plurality of graphene sheets and a plurality of Si nanowires, and the graphene sheets and the Si nanowires are mutually bonded or agglomerated in the core and the shell comprises one or a plurality of graphene sheets that embrace or encapsulate the core.
    Type: Application
    Filed: January 14, 2019
    Publication date: July 16, 2020
    Applicant: Nanotek Instruments, Inc.
    Inventors: Aruna Zhamu, Yu-Sheng Su, Jun Yin, Bor Z. Jang
  • Patent number: 10637067
    Abstract: Provided is a process for producing a rope-shape alkali metal-sulfur battery, comprising (a) providing a first electrode comprising a conductive porous rod and a mixture of a first electrode active material and a first electrolyte residing in pores of the first porous rod; (b) providing a porous separator wrapping around the first electrode to form a separator-protected first electrode; (c) providing a second electrode comprising a conductive porous rod having a mixture of a second electrode active material and a second electrolyte residing in pores of the second porous rod; (d) combining the separator-protected first electrode and the second electrode to form a braid or a yarn; and (d) encasing the braid or yarn with a protective sheath; wherein one of the electrodes is a cathode containing sulfur or a sulfur compound as a cathode active material and the battery has a length-to-diameter aspect ratio no less than 5.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: April 28, 2020
    Assignee: Global Graphene Group, Inc.
    Inventors: Aruna Zhamu, Hui He, Baofei Pan, Yu-Sheng Su, Bor Z Jang
  • Patent number: 10629948
    Abstract: Provided is an aluminum secondary battery comprising an anode, a cathode, a porous separator electronically separating the anode and the cathode, and an electrolyte in ionic contact with the anode and the cathode to support reversible deposition and dissolution of aluminum at the anode, wherein the anode contains aluminum metal or an aluminum metal alloy as an anode active material and the cathode comprises a layer of recompressed exfoliated graphite or carbon material that is oriented in such a manner that the layer has a graphite edge plane in direct contact with the electrolyte and facing the separator. Typically, this graphite edge plane is substantially parallel to the separator layer plane. Such an aluminum battery delivers a high energy density, high power density, and long cycle life.
    Type: Grant
    Filed: March 5, 2017
    Date of Patent: April 21, 2020
    Assignee: Global Graphene Group, Inc.
    Inventors: Yu-Sheng Su, Aruna Zhamu, Hui He, Baofei Pan, Bor Z. Jang
  • Patent number: 10559815
    Abstract: Provided is graphene-embraced particulate for use as a lithium-ion battery anode active material, wherein the particulate comprises primary particle(s) of an anode active material and multiple sheets of a first graphene material overlapped together to embrace or encapsulate the primary particle(s) and wherein a single or a plurality of graphene-encapsulated primary particles, along with an optional conductive additive, are further embraced or encapsulated by multiple sheets of a second graphene material, wherein the first graphene and the second graphene material is each in an amount from 0.01% to 20% by weight and the optional conductive additive is in an amount from 0% to 50% by weight, all based on the total weight of the particulate. Also provided are an anode and a battery comprising multiple graphene-embraced particulates.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: February 11, 2020
    Assignee: Global Graphene Group, Inc.
    Inventors: Aruna Zhamu, Jun Yin, Jen-Hsien Yang, Yu-Sheng Su, Bor Z. Jang
  • Patent number: 10553873
    Abstract: Provided is aluminum secondary battery comprising an anode, a cathode, a porous separator electronically separating the anode and the cathode, and an electrolyte in ionic contact with the anode and the cathode to support reversible deposition and dissolution of aluminum at the anode, wherein the anode contains aluminum metal or an aluminum metal alloy as an anode active material and the cathode comprises a layer of graphitic carbon particles or fibers, preferably selected from meso-phase carbon particles, meso carbon micro-beads (MCMB), coke particles or needles, soft carbon particles, hard carbon particles, amorphous graphite containing graphite micro-crystallites, multi-walled carbon nanotubes, carbon nano-fibers, carbon fibers, graphite nano-fibers, graphite fibers, or a combination thereof.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: February 4, 2020
    Assignee: Global Graphene Group, Inc.
    Inventors: Yu-Sheng Su, Aruna Zhamu, Hui He, Baofei Pan, Bor Z. Jang
  • Patent number: 10535880
    Abstract: Provided is a rope-shaped alkali metal battery comprising: (a) a first electrode comprising a first conductive porous rod having pores and a first mixture of a first electrode active material and a first electrolyte residing in the pores of the first porous rod; (b) a porous separator wrapping around or encasing the first electrode to form a separator-protected first electrode; (c) a second electrode comprising a second conductive porous rod having pores and a second mixture of a second electrode active material and a second electrolyte residing in the pores of the second porous rod; wherein the separator-protected first electrode and second electrode are combined to form a braid or a yarn having a twist or spiral electrode; and (d) a protective casing or sheath wrapping around or encasing the braid or yarn.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: January 14, 2020
    Assignee: Global Graphene Group, Inc.
    Inventors: Aruna Zhamu, Hui He, Baofei Pan, Yu-Sheng Su, Bor Z Jang