Patents by Inventor Qichao Hu

Qichao Hu 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: 20200411916
    Abstract: Battery core packs employing minimum cell-face pressure containment devices and methods are disclosed for minimizing dendrite growth and increasing cycle life of metal and metal-ion battery cells.
    Type: Application
    Filed: September 15, 2020
    Publication date: December 31, 2020
    Inventors: YoungGyu Nam, SangOh Jung, Qichao Hu, Yury Matulevich, Mackenzie King, Yongkyu Son, Jeff Francois, Jacqueline Hong, Arthur R. Nigro, JR.
  • Patent number: 10840553
    Abstract: Free-solvent-free lithium sulfonimide salt compositions that are liquid at room temperature, and methods of making free-solvent-free liquid lithium sulfonimide salt compositions. In an embodiment, the methods include mixing one or more lithium sulfonimide salts with one or more ether-based solvents and then removing the free solvent(s) under suitable vacuum, temperature, and time conditions so as to obtain a free-solvent-free liquid lithium sulfonimide salt composition that is liquid at room temperature. In an embodiment, the only solvent molecules that remain in the liquid lithium sulfonimide salt composition are adducted with lithium sulfonimide salt molecules. An example automated processing system for making free-solvent-free liquid lithium sulfonimide salts is also disclosed.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: November 17, 2020
    Assignee: SES Holdings Pte. Ltd.
    Inventors: Rajendra P. Singh, Shubha Nageswaran, Qichao Hu
  • Publication number: 20200328475
    Abstract: Localized high-salt-concentration electrolytes each containing a salt, a glyme as a solvent, and a fluorinated diluent. In some embodiments, the glyme has a chemical formula R1—(O—CH2—CH2)n—O—R2, wherein n=1 to 4 and at least one of R1 and R2 is a hydrocarbon sidechain having at least 2 carbon atoms and wherein the salt is soluble in the glyme. In some embodiments, the fluorinated diluent is selected from the group consisting of a fluorinated glyme and a fluorinated ether. In some embodiments, the salt includes an alkali-metal salt. In some embodiments, the salt includes an alkali-earth-metal salt. The salt may include a perfluorinated sulfonimide salt. Electrochemical devices that include localized high-salt-concentration electrolytes of the present disclosure are also disclosed.
    Type: Application
    Filed: August 30, 2019
    Publication date: October 15, 2020
    Applicant: SES Holdings Pte. Ltd.
    Inventors: Takashi Hakari, Arunkumar Tiruvannamalai, Leran Zou, Mackenzie King, Hong Gan, Qichao Hu
  • Publication number: 20200280098
    Abstract: Free-solvent-free lithium sulfonimide salt compositions that are liquid at room temperature, and methods of making free-solvent-free liquid lithium sulfonimide salt compositions. In an embodiment, the methods include mixing one or more lithium sulfonimide salts with one or more ether-based solvents and then removing the free solvent(s) under suitable vacuum, temperature, and time conditions so as to obtain a free-solvent-free liquid lithium sulfonimide salt composition that is liquid at room temperature. In an embodiment, the only solvent molecules that remain in the liquid lithium sulfonimide salt composition are adducted with lithium sulfonimide salt molecules. An example automated processing system for making free-solvent-free liquid lithium sulfonimide salts is also disclosed.
    Type: Application
    Filed: August 2, 2019
    Publication date: September 3, 2020
    Inventors: Rajendra P. Singh, Shubha Nageswaran, Qichao Hu
  • Publication number: 20200280063
    Abstract: Alkali metal secondary batteries that include anodes constructed from alkali metal foil applied to only one side of a porous current collector metal foil. Openings in the porous current collectors permit alkali metal accessibility on both sides of the anode structure. Such anode constructions enable the utilization of lower-cost and more commonly available alkali metal foil thickness, while still achieving high cell cycle life at a significantly reduced cost. Aspects of the present disclosure also include batteries with porous current collectors having increased volumetric and gravimetric energy densities, and methods of manufacturing anodes with porous current collectors.
    Type: Application
    Filed: February 27, 2020
    Publication date: September 3, 2020
    Inventors: Arunkumar Tiruvannamalai, Yongkyu Son, Jacqueline Hong, Mackenzie King, Qichao Hu, Robert Graves, Jody Klaassen
  • Publication number: 20200280104
    Abstract: Anode subassembly sheets that include a lithium-metal layer sandwiched between a pair of separator layers to ease handling of the lithium metal to promote fast and efficient stacked-jellyroll assembly. In some embodiments, the separator layers are pressure laminated to the lithium-metal layer without any bonding agent. In some embodiments, a stacked jellyroll is made by alternatingly stacking anode subassembly sheets with cathode sheets. In some embodiments, a functional coating beneficial to the lithium-metal layer is provided to one or more separator layers prior to laminating the separator(s) to the lithium metal layer. Lithium-metal batteries made using stacked jellyrolls made in accordance with aspects of the disclosure are also described.
    Type: Application
    Filed: February 28, 2020
    Publication date: September 3, 2020
    Inventors: Yongkyu Son, Jacqueline Hong, Qichao Hu
  • Publication number: 20200280109
    Abstract: Battery core packs employing minimum cell-face pressure containment devices and methods are disclosed for minimizing dendrite growth and increasing cycle life of metal and metal-ion battery cells.
    Type: Application
    Filed: December 9, 2019
    Publication date: September 3, 2020
    Inventors: YoungGyu Nam, SangOh Jung, Qichao Hu, Yury Matulevich, Mackenzie King, Yongkyu Son, Jeff Francois, Jacqueline Hong, Arthur R. Nigro, JR.
  • Publication number: 20200280039
    Abstract: Separators, for use in electrochemical devices, that each include a porous body and at least one ionic-flow-control layer that includes at least one copolymer blend tuned to melt at a design temperature so that, when melted, the copolymer blend block the flow of ions of an electrolyte through the porous separator. In some embodiments, each copolymer blend is applied to the porous body in particulate form. In some embodiments, two or more copolymer blends of differing design melting temperatures are provided to the ionic-flow-control layer. In embodiments having multiple differing copolymer blends of differing melting temperatures, the copolymer blends may be provided in the ionic-flow-control layer in discrete regions or as a mixture of un-melted particles. An ionic-flow-control layer may be provided separately from or integrally with a porous separator body. Electrochemical devices including ionic-flow-control layers are also disclosed.
    Type: Application
    Filed: February 28, 2020
    Publication date: September 3, 2020
    Inventors: Shubha Nageswaran, Mackenzie King, Robert Graves, Qichao Hu
  • Publication number: 20200272121
    Abstract: An integrated controller for motion control and motor control comprises a first processor, a second processor, a cache and a shared memory. The first processor is configured to run an operating system and at least perform motion control. The second processor is configured to at least perform motor control and normally not run the operating system. The cache is coupled to the first processor and the second processor. The shared memory maps onto the cache. The first processor and the second processor are configured to share the shared memory and accordingly perform data transmission via the cache during the periods of motion control and motor control. The first processor, the second processor and the cache are integrated in a same chip.
    Type: Application
    Filed: September 27, 2018
    Publication date: August 27, 2020
    Inventors: Yan He, Shaoqiu Gong, Shuguo Zhang, Ruiqin Li, Jin Qian, Wenbin Tang, Qichao Wang, Yun Feng, Yuejin Hu, Dongping Fan
  • Patent number: 10732601
    Abstract: An integrated controller for motion control and motor control comprises a first processor, a second processor, a cache and a shared memory. The first processor is configured to run an operating system and at least perform motion control. The second processor is configured to at least perform motor control and normally not run the operating system. The cache is coupled to the first processor and the second processor. The shared memory maps onto the cache. The first processor and the second processor are configured to share the shared memory and accordingly perform data transmission via the cache during the periods of motion control and motor control. The first processor, the second processor and the cache are integrated in a same chip.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: August 4, 2020
    Assignee: RTIMEMAN MOTION CONTROL CO., LTD.
    Inventors: Yan He, Shaoqiu Gong, Shuguo Zhang, Ruiqin Li, Jin Qian, Wenbin Tang, Qichao Wang, Yun Feng, Yuejin Hu, Dongping Fan
  • Patent number: 10734664
    Abstract: A method of removing one or more target impurities from crude hydrogen bis(fluorosulfonyl)imide (HFSI) using a crystallization technique. In some embodiments, the method includes contacting the crude HFSI with at least one anhydrous solvent to create a solution. The solution is caused to have a temperature sufficient to cause HFSI in the solution to crystalize while the one or more impurities remain dissolved in the mother liquor of the solution. The crystalized HFSI and the mother liquor containing the one or more impurities are separated to obtained a purified HFSI product. Purified HFSI products are also disclosed, as are systems, such as secondary batteries, incorporating purified HFSI products.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: August 4, 2020
    Assignee: SES Holdings Pte. Ltd.
    Inventors: Rajendra P. Singh, Qichao Hu
  • Patent number: 10725112
    Abstract: Aspects of the present disclosure include control systems for controlling secondary lithium metal batteries and for controlling electric devices powered, at least in part, thereby, that enable access to reserve energy stored in the lithium metal battery that is not typically available during normal operation. In some examples, the control systems provide access to the reserve energy in response to an emergency, such as requiring excess energy to power an electric device to a safe location.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: July 28, 2020
    Assignee: SES Holdings Pte. Ltd.
    Inventors: SangOh Jung, Yury Matulevich, Mackenzie King, Qichao Hu
  • Patent number: 10727545
    Abstract: Aspects of the present disclosure include methods of charging secondary lithium metal batteries that include selectively and intentionally overcharging the battery to activate redox shuttling additives in order to reactivate dead lithium. Aspects of the present disclosure also include control systems for determining when to initiate a lithium reactivation charging process and for determining one or more parameters of a lithium reactivation charging protocol.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: July 28, 2020
    Assignee: SES Holdings Pte. Ltd.
    Inventors: Hong Gan, Mackenzie King, Qichao Hu
  • Publication number: 20200155963
    Abstract: Methods of removing target impurities from a crude lithium bis(fluorosulfonyl)imide (LiFSI) to make a purified LiFSI product. In some embodiments, a purification method includes contacting crude LiFSI with a first anhydrous organic solvent to create a solution containing LiFSI and the target impurity(ies), wherein the LiFSI is soluble and the impurity(ies) is/are substantially insoluble. In some embodiments, a second anhydrous organic solvent is added to the solution to precipitate the target impurity(ies), which is then filtered to obtain a filtrate. In some embodiments, solvent is removed from the filtrate to obtain a solid mass containing LiFSI, which may then be contacted with a third anhydrous organic solvent in which the LiFSI is insoluble. The LiFSI may then be isolated from the third anhydrous organic solvent to obtain the purified LiFSI product. Also disclosed are purified LiFSI products and electrochemical devices utilizing purified LiFSI products, among other things.
    Type: Application
    Filed: September 13, 2019
    Publication date: May 21, 2020
    Inventors: Rajendra P. Singh, Qichao Hu
  • Publication number: 20200155964
    Abstract: Methods for making high-purity LiFSI salts and intermediate products using one, the other, or both of a reactive-solvent removal/replacement method and an LiFSI purification method. In some embodiments, the reactive-solvent removal/replacement method includes using non-reactive anhydrous organic solvents to remove and/or replace one or more reactive solvents in a crude LiFSI. In some embodiments, the LiFSI purification method includes using anhydrous organic solvents to remove impurities, such as synthesis impurities, from a crude LiFSI. In some embodiments, crude LiFSI can be made using an aqueous-based neutralization process. LiFSI salts and products made using methods of the disclosure are also described, as are uses of such salts and products and electrochemical devices that include such salts and products.
    Type: Application
    Filed: November 15, 2019
    Publication date: May 21, 2020
    Inventors: Rajendra P. Singh, Qichao Hu
  • Patent number: 10615457
    Abstract: A secondary high energy density lithium ion cell includes a cathode comprising a high voltage cathode active material, a lithium metal anode, and a non-aqueous electrolyte, wherein the non-aqueous electrolyte comprises an imide salt with a fluorosulfonyl group and a perchlorate salt, wherein the electrolyte is electrochemically stable at operating voltages greater than 4.2V.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: April 7, 2020
    Assignee: SES Holdings Pte. Ltd.
    Inventors: Jaehee Hwang, Xiaobo Li, Qichao Hu
  • Patent number: 10566659
    Abstract: Binary and ternary eutectic mixtures and corresponding electrolytes are disclosed. In some embodiments, binary eutectic mixtures and electrolytes each include a first salt, X1+Y1?, and a second salt, X2+Y2?, wherein each of X1+ and X2+ is an alkali metal cation and X1+ is different from X2+; and each of Y1? and Y2? is a sulfonimide anion and Y1? is different from Y2?. In ternary eutectic mixtures and electrolytes further include a third salt, X3+Y3?, wherein X3+ is different from each of X1+ and X2+. In some embodiments, the eutectic mixtures and electrolytes have melting points in a range of about 5° C. to about 70° C. Electrochemical devices containing such eutectic-mixture electrolytes are also disclosed.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: February 18, 2020
    Assignee: SES Holdings Pte. Ltd.
    Inventors: Rajendra P. Singh, Shubha Nageswaran, Qichao Hu
  • Publication number: 20190260066
    Abstract: A high energy density, high power lithium metal anode rechargeable battery having volumetric energy density of >1000 Wh/L and/or a gravimetric energy density of >350 Wh/kg, that is capable of >1 C discharge at room temperature.
    Type: Application
    Filed: June 7, 2017
    Publication date: August 22, 2019
    Applicant: SolidEnergy Systems, LLC
    Inventors: Qichao HU, Yury MATULEVICH, Yang TANG
  • Patent number: 10347904
    Abstract: A lithium metal anode includes a lithium metal layer and a multi-layer polymer coating disposed over the lithium metal layer. The multi-layer polymer coating includes a first outer polymeric crosslinked gel layer positioned for contact with a battery electrolyte and a second inner polymer layer disposed between the lithium metal layer and the first outer polymeric crosslinked gel layer. The first outer polymeric crosslinked gel layer includes a first polymer, a soft segment polymer, and an electrolyte. The second inner polymer layer includes a second polymer. The second inner polymer layer provides mechanical strength and serves as a physical barrier to the lithium metal layer.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: July 9, 2019
    Assignee: SolidEnergy Systems, LLC
    Inventors: Myung Cho, Qichao Hu
  • Publication number: 20160372743
    Abstract: A lithium metal anode includes a lithium metal layer and a multi-layer polymer coating disposed over the lithium metal layer. The multi-layer polymer coating includes a first outer polymeric crosslinked gel layer positioned for contact with a battery electrolyte and a second inner polymer layer disposed between the lithium metal layer and the first outer polymeric crosslinked gel layer. The first outer polymeric crosslinked gel layer includes a first polymer, a soft segment polymer, and an electrolyte. The second inner polymer layer includes a second polymer. The second inner polymer layer provides mechanical strength and serves as a physical barrier to the lithium metal layer.
    Type: Application
    Filed: June 17, 2016
    Publication date: December 22, 2016
    Inventors: Myung CHO, Qichao HU