Patents by Inventor Chao-Yang Wang

Chao-Yang Wang 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).

  • Patent number: 11367910
    Abstract: A rapid heating-charging process for charging a rechargeable battery is disclosed. Such a process can be implemented by an integrated heating and battery system can include a rechargeable battery and a heating element in thermal contact with the at least one cell of the battery and electrically connected in series to a switch wherein the heating element and switch form a switch-heater assembly. The switch-heater assembly can be electrically connected in parallel with the battery to form a battery-switch-heater circuit. Advantageously, the battery-switch-heater circuit is configured to be directly electrically engaged with a charger so that the heating element is powered mainly by the charger and electrically connected to the battery when the heating element is powered by the charger.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: June 21, 2022
    Assignee: EC POWER, LLC
    Inventor: Chao-Yang Wang
  • Publication number: 20200259232
    Abstract: A battery cell is disclosed having an internal resistor configured to heat the battery cell via power from the battery cell to at least a performing state temperature (Tp). Such a battery cell includes one or more passivating elements to increase the charge-transfer resistance of the battery cell by at least 4 times relative to a battery cell without the one or more passivating elements.
    Type: Application
    Filed: February 11, 2020
    Publication date: August 13, 2020
    Inventors: Shanhai GE, Chao-Yang WANG
  • Patent number: 10587021
    Abstract: Provided is an all solid-state lithium battery including solid battery materials and whose ohmic resistance is modulated according to temperature. The all solid-state lithium battery can include a solid electrolyte; at least two terminals for operating the battery at one level of internal resistance (R1) over a temperature range of the battery between a first temperature (T1) and a second temperature (T2); at least one high resistance terminal for operating the battery at a second level of internal resistance (R2) outside of either T1 or T2; and a switch that activates R2 when the temperature of the battery is outside of either T1 or T2. The battery can be configured to include at least one resistor sheet embedded within a cell of the battery and electrically connected to the at least one high resistance terminal.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: March 10, 2020
    Assignee: EC POWER, LLC
    Inventors: Chao-Yang Wang, Yan Ji, Tianren Xu
  • Publication number: 20190319321
    Abstract: A rapid heating-charging process for charging a rechargeable battery is disclosed. Such a process can be implemented by an integrated heating and battery system can include a rechargeable battery and a heating element in thermal contact with the at least one cell of the battery and electrically connected in series to a switch wherein the heating element and switch form a switch-heater assembly. The switch-heater assembly can be electrically connected in parallel with the battery to form a battery-switch-heater circuit. Advantageously, the battery-switch-heater circuit is configured to be directly electrically engaged with a charger so that the heating element is powered mainly by the charger and electrically connected to the battery when the heating element is powered by the charger.
    Type: Application
    Filed: March 18, 2019
    Publication date: October 17, 2019
    Inventor: Chao-Yang WANG
  • Patent number: 10186887
    Abstract: Rechargeable batteries, charging methods and systems for fast charging of the battery under all environmental temperatures and without causing battery degradation are disclosed. A charging control system for charging a rechargeable battery can include an ohmically modulated battery, a temperature sensor configured to monitor a temperature of the battery: a switch that can electrically engage the battery to a source of electrical current through either a low-resistance terminal or a high-resistance terminal of the battery: and a controller electrically connected to the temperature sensor and the switch and that can receive input from the temperature sensor and is programmed to determine whether to electrically engage the battery to the source of electrical current through either the low-resistance terminal or the high-resistance terminal through the switch based on input from the temperature sensor.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: January 22, 2019
    Assignee: EC Power, LLC
    Inventors: Chao-Yang Wang, Yan Ji
  • Patent number: 10074861
    Abstract: Fuel cell systems, e.g. systems including proton exchange membrane (PEM) fuel cells, are engineered to have more than one internal electrical resistance that can change according to temperature. Such changes in internal electrical resistance levels allow rapid heat-up of the fuel cells from low temperatures to an elevated temperature that is optimal for water management and fuel cell operation. The fuel cell systems can include at least one fuel cell and at least one resistor-switch unit electrically connected to the at least one fuel cell. The at least one resistor-switch unit includes a resistor and a switch in which the switch is electrically connected in parallel with the resistor.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: September 11, 2018
    Assignee: EC Power, LLC
    Inventor: Chao-Yang Wang
  • Patent number: 10033071
    Abstract: A rechargeable battery whose ohmic resistance is modulated according to temperature is disclosed.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: July 24, 2018
    Assignee: EC Power, LLC
    Inventors: Chao-Yang Wang, Shanhai Ge, Yan Ji, Tianren Xu
  • Patent number: 9882197
    Abstract: A rechargeable battery, module or a pack, having different levels of internal resistance that operate at different temperatures are disclosed. In a subfreezing environment, the battery can exhibit high resistance which once operated or activated, generates heat internally to warm up the battery quickly. Once the batter reaches normal operating temperatures, the battery can switch to a low resistance operating mode, thereby delivering superior power and energy despite operating in a very low ambient temperature.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: January 30, 2018
    Assignee: EC POWER, LLC
    Inventors: Chao-Yang Wang, Shanhai Ge
  • Patent number: 9692087
    Abstract: A rechargeable battery whose ohmic resistance is modulated according to temperature is disclosed.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: June 27, 2017
    Assignee: EC Power, LLC
    Inventors: Chao-Yang Wang, Shanhai Ge
  • Patent number: 9627723
    Abstract: Electrochemical cells that include resistor switch assemblies that can operate according to temperature and batteries and power systems including such cells are disclosed.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: April 18, 2017
    Assignee: EC Power, LLC
    Inventors: Chao-Yang Wang, Puneet K. Sinha, Yan Ji, Shanhai Ge
  • Publication number: 20170098869
    Abstract: A rechargeable battery whose ohmic resistance is modulated according to temperature is disclosed.
    Type: Application
    Filed: October 7, 2016
    Publication date: April 6, 2017
    Inventors: Chao-Yang WANG, Shanhai GE
  • Patent number: 9502708
    Abstract: A rechargeable battery whose ohmic resistance is modulated according to temperature is disclosed.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: November 22, 2016
    Assignee: EC Power, LLC
    Inventors: Chao-Yang Wang, Shanhai GE
  • Patent number: 9478829
    Abstract: A rechargeable battery that features two or more levels of internal resistance according to various temperature ranges is disclosed.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: October 25, 2016
    Assignee: EC Power, LLC
    Inventors: Chao-Yang Wang, Wei Zhao
  • Publication number: 20160268646
    Abstract: A rechargeable battery whose ohmic resistance is modulated according to temperature is disclosed.
    Type: Application
    Filed: October 8, 2014
    Publication date: September 15, 2016
    Applicant: EC Power, LLC
    Inventors: Chao-Yang WANG, Shanhai GE, Yan JI, Tianren XU
  • Publication number: 20160211535
    Abstract: Fuel cell systems, e.g. systems including proton exchange membrane (PEM) fuel cells, are engineered to have more than one internal electrical resistance that can change according to temperature. Such changes in internal electrical resistance levels allow rapid heat-up of the fuel cells from low temperatures to an elevated temperature that is optimal for water management and fuel cell operation. The fuel cell systems can include at least one fuel cell and at least one resistor-switch unit electrically connected to the at least one fuel cell. The at least one resistor-switch unit includes a resistor and a switch in which the switch is electrically connected in parallel with the resistor.
    Type: Application
    Filed: January 21, 2016
    Publication date: July 21, 2016
    Inventor: Chao-Yang WANG
  • Publication number: 20160156081
    Abstract: Provided is an all solid-state lithium battery including solid battery materials and whose ohmic resistance is modulated according to temperature. The all solid-state lithium battery can include a solid electrolyte; at least two terminals for operating the battery at one level of internal resistance (R1) over a temperature range of the battery between a first temperature (T1) and a second temperature (T2); at least one high resistance terminal for operating the battery at a second level of internal resistance (R2) outside of either T1 or T2; and a switch that activates R2 when the temperature of the battery is outside of either T1 or T2. The battery can be configured to include at least one resistor sheet embedded within a cell of the battery and electrically connected to the at least one high resistance terminal.
    Type: Application
    Filed: November 25, 2015
    Publication date: June 2, 2016
    Inventors: Chao-Yang WANG, Yan JI, Tianren XU
  • Patent number: 9287593
    Abstract: A battery with three types of terminals is disclosed. The terminals include at least one negative terminal, at least one positive terminal, and at least one sensor terminal. The negative and positive terminals carry current during battery operation, while the sensor terminal is used to sense, communicate and/or control certain aspects of the battery. The sensor terminal can also be connected to external electronic units for sensing, communication and control of the battery usage.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: March 15, 2016
    Assignee: EC POWER, LLC
    Inventors: Chao-Yang Wang, Christian E. Shaffer, Puneet K. Sinha
  • Publication number: 20160036100
    Abstract: Electrochemical cells that include resistor switch assemblies that can operate according to temperature and batteries and power systems including such cells are disclosed.
    Type: Application
    Filed: July 30, 2014
    Publication date: February 4, 2016
    Inventors: Chao-Yang WANG, Puneet K. SINHA, Yan JI, Shanhai GE
  • Publication number: 20160023563
    Abstract: Rechargeable batteries, charging methods and systems for fast charging of the battery under all environmental temperatures and without causing battery degradation are disclosed.
    Type: Application
    Filed: July 27, 2015
    Publication date: January 28, 2016
    Inventors: Chao-Yang WANG, Yan JI
  • Publication number: 20150303444
    Abstract: A rechargeable battery, module or a pack, having different levels of internal resistance that operate at different temperatures are disclosed. In a subfreezing environment, the battery can exhibit high resistance which once operated or activated, generates heat internally to warm up the battery quickly. Once the batter reaches normal operating temperatures, the battery can switch to a low resistance operating mode, thereby delivering superior power and energy despite operating in a very low ambient temperature.
    Type: Application
    Filed: April 17, 2014
    Publication date: October 22, 2015
    Applicant: EC POWER LLC
    Inventors: Chao-Yang WANG, Shanhai GE