Patents by Inventor Steven A Carlson

Steven A Carlson 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: 20210184317
    Abstract: Provided are methods of preparing a separator/anode assembly for use in an electric current producing cell, wherein the assembly comprises an anode current collector layer interposed between a first anode layer and a second anode layer and a porous separator layer on the side of the first anode layer opposite to the anode current collector layer, wherein the first anode layer is coated directly on the separator layer.
    Type: Application
    Filed: February 18, 2021
    Publication date: June 17, 2021
    Inventor: Steven A. Carlson
  • Publication number: 20210175581
    Abstract: Provided are separators for use in batteries and capacitors comprising (a) at least 50% by weight of an aluminum oxide and (b) an organic polymer, wherein the aluminum oxide is surface modified by treatment with an organic acid to form a modified aluminum oxide, and wherein the treatment provides dispersibility of the aluminum oxide in aprotic solvents such as N-methyl pyrrolidone. Preferably, the organic acid is a sulfonic acid, such as p-toluenesulfonic acid. Also preferably, the organic polymer is a fluorinated polymer, such as polyvinylidene fluoride. Also provided are electrochemical cells and capacitors comprising such separators.
    Type: Application
    Filed: November 3, 2020
    Publication date: June 10, 2021
    Inventors: Zhong Xu, Steven A. Carlson
  • Publication number: 20210175579
    Abstract: Provided are separators for use in an electrochemical cell comprising (a) an inorganic oxide and (b) an organic polymer, wherein the inorganic oxide comprises organic substituents. Also provided are electrochemical cells comprising such separators.
    Type: Application
    Filed: September 14, 2020
    Publication date: June 10, 2021
    Inventors: Steven A. Carlson, lfenna Kingsley Anakor, Greg Robert Farrell
  • Patent number: 10998536
    Abstract: A separator for a lithium battery having (a) a porous polymeric layer, such as a polyethylene layer; and (b) a nanoporous inorganic particle/polymer layer on both sides of the polymeric layer, the nanoporous layer having an inorganic oxide and one or more polymers; the volume fraction of the polymers in the nanoporous layer is about 15% to about 50%, and the crystallite size of the inorganic oxide is 5 nm to 90 nm.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: May 4, 2021
    Assignee: Optodot Corporation
    Inventors: David W. Avison, Steven A. Carlson, Benjamin Sloan
  • Patent number: 10950837
    Abstract: Provided are methods of preparing a separator/anode assembly for use in an electric current producing cell, wherein the assembly comprises an anode current collector layer interposed between a first anode layer and a second anode layer and a porous separator layer on the side of the first anode layer opposite to the anode current collector layer, wherein the first anode layer is coated directly on the separator layer.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: March 16, 2021
    Assignee: Optodot Corporation
    Inventor: Steven A. Carlson
  • Publication number: 20200395583
    Abstract: A separator for an electrochemical cell having a porous layer with a blend of a first type of boehmite particles and a second type of boehmite particles and an organic polymer binder, where the first type of boehmite particles is different from the second type of boehmite particles with respect to crystallite particle size and/or composition, and the blend ranges from about 50%-50% by weight of the first and second types of boehmite particles to about 60%-40% by weight of the first and second types of boehmite particles. The separator does not include a polymer separator layer; has a shrinkage of less than 1% when heated at 220° C. for 1 hour; and swells by less than 5% when soaked in propylene carbonate for 1 hour.
    Type: Application
    Filed: October 9, 2018
    Publication date: December 17, 2020
    Inventors: Steven A. Carlson, David W. Avison, Benjamin Sloan
  • Patent number: 10833307
    Abstract: Provided are separators for use in batteries and capacitors comprising (a) at least 50% by weight of an aluminum oxide and (b) an organic polymer, wherein the aluminum oxide is surface modified by treatment with an organic acid to form a modified aluminum oxide, and wherein the treatment provides dispersibility of the aluminum oxide in aprotic solvents such as N-methyl pyrrolidone. Preferably, the organic acid is a sulfonic acid, such as p-toluenesulfonic acid. Also preferably, the organic polymer is a fluorinated polymer, such as polyvinylidene fluoride. Also provided are electrochemical cells and capacitors comprising such separators.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: November 10, 2020
    Assignees: Optodot Corporation, Sihi GmbH
    Inventors: Zhong Xu, Steven A. Carlson
  • Publication number: 20200266414
    Abstract: A separator for a lithium battery having (a) a porous polymeric layer, such as a polyethylene layer; and (b) a nanoporous inorganic particle/polymer layer on both sides of the polymeric layer, the nanoporous layer having an inorganic oxide and one or more polymers; the volume fraction of the polymers in the nanoporous layer is about 15% to about 50%, and the crystallite size of the inorganic oxide is 5 nm to 90 nm.
    Type: Application
    Filed: October 15, 2018
    Publication date: August 20, 2020
    Inventors: David W. Avison, Steven A. Carlson, Benjamin Sloan
  • Patent number: 10651444
    Abstract: Provided are methods of preparing lithium batteries comprising a separator/electrode assembly having one or more current collector layers interposed between first and second electrode layers of the same polarity, wherein the first electrode layer is coated or laminated overlying a separator layer and the separator/electrode assembly is interleaved with an electrode comprising a current collector layer interposed between two electrode layers of opposite polarity to said first and second electrodes.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: May 12, 2020
    Assignee: Optodot Corporation
    Inventor: Steven A. Carlson
  • Publication number: 20190386279
    Abstract: Provided are methods of preparing a separator/anode assembly for use in an electric current producing cell, wherein the assembly comprises an anode current collector layer interposed between a first anode layer and a second anode layer and a porous separator layer on the side of the first anode layer opposite to the anode current collector layer, wherein the first anode layer is coated directly on the separator layer.
    Type: Application
    Filed: August 30, 2019
    Publication date: December 19, 2019
    Inventor: Steven A. Carlson
  • Patent number: 10403874
    Abstract: Provided are methods of preparing a separator/anode assembly for use in an electric current producing cell, wherein an electroactive anode metal layer, such as a lithium metal layer, is deposited directly on a porous separator, such as a nanoporous separator layer.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: September 3, 2019
    Assignee: Optodot Corporation
    Inventor: Steven A. Carlson
  • Publication number: 20190260000
    Abstract: Provided is a lithium battery, wherein the battery comprises an anode, a cathode, wherein the cathode comprises one or more transition metals, an electrolyte, and a porous separator interposed between the cathode and anode, wherein the separator comprises an anionic compound. Also provided are methods of manufacturing such batteries.
    Type: Application
    Filed: May 6, 2019
    Publication date: August 22, 2019
    Inventors: Steven A. Carlson, Benjamin Sloan, David W. Avison
  • Patent number: 10381623
    Abstract: Provided is a lithium battery, wherein the battery comprises an anode, a cathode, wherein the cathode comprises one or more transition metals, an electrolyte, and a porous separator interposed between the cathode and anode, wherein the separator comprises an anionic compound. Also provided are methods of manufacturing such batteries.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: August 13, 2019
    Assignee: Optodot Corporation
    Inventors: Steven A. Carlson, Benjamin Sloan, David W. Avison
  • Publication number: 20170271638
    Abstract: Provided are separators for use in batteries and capacitors comprising (a) at least 50% by weight of an aluminum oxide and (b) an organic polymer, wherein the aluminum oxide is surface modified by treatment with an organic acid to form a modified aluminum oxide, and wherein the treatment provides dispersibility of the aluminum oxide in aprotic solvents such as N-methyl pyrrolidone. Preferably, the organic acid is a sulfonic acid, such as p-toluenesulfonic acid. Also preferably, the organic polymer is a fluorinated polymer, such as polyvinylidene fluoride. Also provided are electrochemical cells and capacitors comprising such separators.
    Type: Application
    Filed: June 7, 2017
    Publication date: September 21, 2017
    Inventors: Zhong Xu, Steven A. Carlson
  • Publication number: 20170222206
    Abstract: Provided are methods of preparing a separator/anode assembly for use in an electric current producing cell, wherein an electroactive anode metal layer, such as a lithium metal layer, is deposited directly on a porous separator, such as a nanoporous separator layer.
    Type: Application
    Filed: April 20, 2017
    Publication date: August 3, 2017
    Inventor: Steven A. Carlson
  • Patent number: 9660297
    Abstract: Provided are methods of preparing a separator/anode assembly for use in an electric current producing cell, wherein the assembly comprises an anode current collector layer interposed between a first anode layer and a second anode layer and a porous separator layer on the side of the first anode layer opposite to the anode current collector layer, wherein the first anode layer is coated directly on the separator layer.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: May 23, 2017
    Assignee: Optodot Corporation
    Inventor: Steven A. Carlson
  • Publication number: 20170098857
    Abstract: Provided is a battery stack for use in an electric current producing cell, wherein the coated stack comprises a porous separator, an electrode layer adjacent the porous separator, and a current collector layer coated on the electrode layer, wherein the current collector layer comprises sintered metal particles. Also provided are methods of manufacturing such coated stacks.
    Type: Application
    Filed: April 15, 2016
    Publication date: April 6, 2017
    Inventors: Steven A. Carlson, Benjamin Sloan, David W. Avison
  • Publication number: 20170012264
    Abstract: Provided is a lithium battery, wherein the battery comprises an anode, a cathode, wherein the cathode comprises one or more transition metals, an electrolyte, and a porous separator interposed between the cathode and anode, wherein the separator comprises an anionic compound. Also provided are methods of manufacturing such batteries.
    Type: Application
    Filed: July 11, 2016
    Publication date: January 12, 2017
    Inventors: Steven A. Carlson, Benjamin Sloan, David W. Avison
  • Publication number: 20160164145
    Abstract: Provided are methods of preparing lithium batteries comprising a separator/electrode assembly having one or more current collector layers interposed between first and second electrode layers of the same polarity, wherein the first electrode layer is coated or laminated overlying a separator layer and the separator/electrode assembly is interleaved with an electrode comprising a current collector layer interposed between two electrode layers of opposite polarity to said first and second electrodes.
    Type: Application
    Filed: December 8, 2015
    Publication date: June 9, 2016
    Applicant: OPTODOT CORPORATION
    Inventor: Steven A. Carlson
  • Patent number: 9065120
    Abstract: Provided are lithium batteries utilizing electrode coatings directly on nanoporous separators, the batteries comprising (a) a separator/cathode assembly, (b) a separator/anode assembly, and (c) an electrolyte, where the batteries comprise alternating layers of the separator/cathode assembly and the separator/anode assembly. Preferably, a portion of the separator/cathode assembly is not in contact with the separator/anode assembly and a portion of the separator/anode assembly is not in contact with the separator/cathode assembly, and electrically conductive edge connections are made through these portions. Also provided are methods of preparing such lithium batteries.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: June 23, 2015
    Assignee: Optodot Corporation
    Inventor: Steven A. Carlson