Patents by Inventor Albert G. Dietz

Albert G. Dietz 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: 20210234232
    Abstract: Embodiments of the invention provide methods and apparatuses for enhancing electron flow within a battery, such as a lead-acid battery. In one embodiment, a battery separator may include a conductive surface or layer upon which electrons may flow. The battery separator may include a fiber mat that includes a plurality of electrically insulative fibers. The battery separator may be positioned between electrodes of the battery to electrically insulate the electrodes. The battery separator may also include a conductive material disposed on at least one surface of the fiber mat. The conductive material may contact an electrode of the battery and may have an electrical conductivity that enables electron flow on the surface of the fiber mat.
    Type: Application
    Filed: April 14, 2021
    Publication date: July 29, 2021
    Inventors: Souvik Nandi, Zhuhua Guo, Jawed Asrar, Albert G Dietz, III
  • Patent number: 11018333
    Abstract: According to one embodiment, a plate or electrode for a lead-acid battery includes a grid of lead alloy material, a paste of active material applied to the grid of lead alloy material, and a nonwoven fiber mat disposed at least partially within the paste of active material. The nonwoven fiber mat includes a plurality of fibers, a binder material that couples the plurality of fibers together, and a conductive material disposed at least partially within the nonwoven fiber mat so as to contact the paste of active material. In some embodiments, the nonwoven fiber mat may have an electrical resistant of less than about 100,000 ohms per square to enable electron flow on a surface of the nonwoven fiber mat.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: May 25, 2021
    Assignee: Johns Manville
    Inventors: Zhihua Guo, Souvik Nandi, Jawed Asrar, Albert G Dietz, III
  • Patent number: 11005139
    Abstract: Embodiments of the invention provide methods and apparatuses for enhancing electron flow within a battery, such as a lead-acid battery. In one embodiment, a battery separator may include a conductive surface or layer upon which electrons may flow. The battery separator may include a fiber mat that includes a plurality of electrically insulative fibers. The battery separator may be positioned between electrodes of the battery to electrically insulate the electrodes. The battery separator may also include a conductive material disposed on at least one surface of the fiber mat. The conductive material may contact an electrode of the battery and may have an electrical conductivity that enables electron flow on the surface of the fiber mat.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: May 11, 2021
    Assignee: Johns Manville
    Inventors: Souvik Nandi, Zhuhua Guo, Jawed Asrar, Albert G Dietz, III
  • Patent number: 10971709
    Abstract: According to one embodiment, a nonwoven fiber mat for reinforcing a plate or electrode of a lead-acid battery includes a plurality of glass fibers and an acid resistant binder that couples the plurality of glass fibers together. The nonwoven fiber mat also includes a wetting component that is applied to the glass fibers and/or nonwoven fiber mat to increase the wettability of the nonwoven fiber mat such that the nonwoven fiber mat exhibits an average water wick height of at least 0.5 cm after exposure to water for 10 minutes conducted according to method ISO8787. The wetting component may be dissolvable in an acid solution of the lead-acid battery such that a significant portion of the nonwoven fiber mat is lost due to dissolving of the wetting component.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: April 6, 2021
    Assignee: Johns Manville
    Inventors: Zhihua Guo, Souvik Nandi, Jawed Asrar, Albert G Dietz, III
  • Publication number: 20190355949
    Abstract: Embodiments of the invention provide methods and apparatuses for enhancing electron flow within a battery, such as a lead-acid battery. In one embodiment, a battery separator may include a conductive surface or layer upon which electrons may flow. The battery separator may include a fiber mat that includes a plurality of electrically insulative fibers. The battery separator may be positioned between electrodes of the battery to electrically insulate the electrodes. The battery separator may also include a conductive material disposed on at least one surface of the fiber mat. The conductive material may contact an electrode of the battery and may have an electrical conductivity that enables electron flow on the surface of the fiber mat.
    Type: Application
    Filed: July 31, 2019
    Publication date: November 21, 2019
    Inventors: Souvik Nandi, Zhuhua Guo, Jawed Asrar, Albert G Dietz, III
  • Patent number: 10411236
    Abstract: Embodiments of the invention provide methods and apparatuses for enhancing electron flow within a battery, such as a lead-acid battery. In one embodiment, a battery separator may include a conductive surface or layer upon which electrons may flow. The battery separator may include a fiber mat that includes a plurality of electrically insulative fibers. The battery separator may be positioned between electrodes of the battery to electrically insulate the electrodes. The battery separator may also include a conductive material disposed on at least one surface of the fiber mat. The conductive material may contact an electrode of the battery and may have an electrical conductivity that enables electron flow on the surface of the fiber mat.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: September 10, 2019
    Assignee: Johns Manville
    Inventors: Souvik Nandi, Zhihua Guo, Jawed Asrar, Albert G. Dietz, III
  • Patent number: 10396327
    Abstract: Glass-fiber mats for lead-acid batteries are described. The glass-fiber mats may include a plurality of glass fibers held together with a binder. The binder may be made from a binder composition that includes (i) an acid resistant polymer, and (ii) a hydrophilic agent. The hydrophilic agent increases the wettability of the glass-fiber mat such that the glass-fiber mat forms a contact angle with water or aqueous sulfuric acid solution of 70° or less. Also described are methods of making the glass-fiber mats that include applying a binder composition to the glass fibers, and including a hydrophilic agent in the glass fiber mat that increases the wettability of the mat. The hydrophilic agent may be added to the binder composition, applied to the glass-fiber mat, or both.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: August 27, 2019
    Assignee: Johns Manville
    Inventors: Albert G Dietz, III, Zhihua Guo, Souvik Nandi, Gautam Sharma
  • Patent number: 10283746
    Abstract: According to one embodiment, a nonwoven fiber mat includes between 10% and 50% by weight of a plurality of first glass fibers having an average diameter of less than 5 ?m and between 50% and 90% by weight of a plurality of second glass fibers having an average diameter of greater than 6 ?m. The nonwoven fiber mat also includes an acid resistant binder that binds the first and second glass fibers together. The nonwoven fiber mat has an average pore size of between 1 and 100 ?m and exhibits an air permeability of below 100 cubic feet per minute per square foot (cfm/ft2) as measured by the Frazier test at 125 Pa according to ASTM Standard Method D737.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: May 7, 2019
    Assignee: Johns Manville
    Inventors: Zhihua Guo, Gautam Sharma, Souvik Nandi, Jawed Asrar, Albert G Dietz, III
  • Patent number: 10193138
    Abstract: Glass-fiber composites are described that include a substrate containing glass fibers and particles in contact with the glass fiber substrate. The particles may include an alkali-metal containing compound. In addition, batteries are described with an anode, a cathode, and an electrolyte. The cathode may include alkali-metal containing nanoparticles in contact with glass fibers. Also describe are methods of making a glass-fiber composite. The methods may include the steps of forming a wet laid non-woven glass fiber substrate, and contacting alkali-metal containing particles on the substrate.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: January 29, 2019
    Assignee: Johns Manville
    Inventors: Souvik Nandi, Alan Michael Jaffee, Kristin Franz Goya Obernyer, Albert G Dietz, III
  • Publication number: 20180337380
    Abstract: According to one embodiment, a nonwoven fiber mat for reinforcing a plate or electrode of a lead-acid battery includes a plurality of glass fibers and an acid resistant binder that couples the plurality of glass fibers together. The nonwoven fiber mat also includes a wetting component that is applied to the glass fibers and/or nonwoven fiber mat to increase the wettability of the nonwoven fiber mat such that the nonwoven fiber mat exhibits an average water wick height of at least 0.5 cm after exposure to water for 10 minutes conducted according to method ISO8787. The wetting component may be dissolvable in an acid solution of the lead-acid battery such that a significant portion of the nonwoven fiber mat is lost due to dissolving of the wetting component.
    Type: Application
    Filed: July 31, 2018
    Publication date: November 22, 2018
    Inventors: Zhihua Guo, Souvik Nandi, Jawed Asrar, Albert G Dietz, III
  • Patent number: 10084170
    Abstract: Embodiments of the invention provide an absorptive glass mat (AGM) battery having a positive electrode, a negative electrode, and a nonwoven fiber separator positioned between the electrodes. The separator includes a mixture of glass fibers having diameters between about 8 ?m to 13 ?m and glass fibers having diameters of at least 6 ?m and a silane sizing. An acid resistant binder bonds the glass fibers to form the separator. A wetting component is applied to the separator to increase the wettability such that the separator has or exhibits an average water wick height of at least 1.0 cm after exposure to water for 10 minutes. A conductive material is disposed on at least one surface of the separator such that when the separator is positioned adjacent an electrode, the conductive material contacts the electrode. An electrical resistance of less than 100,000 ohms per square enables electron flow about mat.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: September 25, 2018
    Assignee: Johns Manville
    Inventors: Michael Ketzer, Gerold Albert, Zhihua Guo, Souvik Nandi, Jawed Asrar, Albert G. Dietz, III
  • Patent number: 10062887
    Abstract: According to one embodiment, a nonwoven fiber mat for reinforcing a plate or electrode of a lead-acid battery includes a plurality of glass fibers and an acid resistant binder that couples the plurality of glass fibers together. The nonwoven fiber mat also includes a wetting component that is applied to the glass fibers and/or nonwoven fiber mat to increase the wettability of the nonwoven fiber mat such that the nonwoven fiber mat exhibits an average water wick height of at least 0.5 cm after exposure to water for 10 minutes conducted according to method ISO8787. The wetting component may be dissolvable in an acid solution of the lead-acid battery such that a significant portion of the nonwoven fiber mat is lost due to dissolving of the wetting component.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: August 28, 2018
    Inventors: Zhihua Guo, Souvik Nandi, Jawed Asrar, Albert G Dietz, III
  • Publication number: 20180159122
    Abstract: According to one embodiment, a plate or electrode for a lead-acid battery includes a grid of lead alloy material, a paste of active material applied to the grid of lead alloy material, and a nonwoven fiber mat disposed at least partially within the paste of active material. The nonwoven fiber mat includes a plurality of fibers, a binder material that couples the plurality of fibers together, and a conductive material disposed at least partially within the nonwoven fiber mat so as to contact the paste of active material. In some embodiments, the nonwoven fiber mat may have an electrical resistant of less than about 100,000 ohms per square to enable electron flow on a surface of the nonwoven fiber mat.
    Type: Application
    Filed: February 2, 2018
    Publication date: June 7, 2018
    Inventors: Zhihua Guo, Souvik Nandi, Jawed Asrar, Albert G. Dietz, III
  • Patent number: 9960454
    Abstract: Examples of the present technology may include a method of making a non-woven fiber mat. The wet nonwoven fiber mat may include a first plurality of first glass fibers and a second plurality of second glass fibers. The first plurality of first glass fibers may have nominal diameters of less than 5 ?m, and the second plurality of second glass fibers may have nominal diameters of greater than 6 ?m. The method may further include curing the binder composition to produce the nonwoven fiber mat. The nonwoven fiber mat may have an average 40 wt. % sulfuric acid wick height of between about 1 cm and about 5 cm after exposure to 40 wt. % sulfuric acid for 10 minutes conducted according to method ISO8787, and the nonwoven fiber mat may have a total normalized tensile strength greater than 2 (lbf/in)/(lb/sq) fora sq (100 ft2).
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: May 1, 2018
    Assignee: Johns Manville
    Inventors: Zhihua Guo, Souvik Nandi, Jawed Asrar, Albert G Dietz, III
  • Patent number: 9923196
    Abstract: According to one embodiment, a plate or electrode for a lead-acid battery includes a grid of lead alloy material, a paste of active material applied to the grid of lead alloy material, and a nonwoven fiber mat disposed at least partially within the paste of active material. The nonwoven fiber mat includes a plurality of fibers, a binder material that couples the plurality of fibers together, and a conductive material disposed at least partially within the nonwoven fiber mat so as to contact the paste of active material. In some embodiments, the nonwoven fiber mat may have an electrical resistant of less than about 100,000 ohms per square to enable electron flow on a surface of the nonwoven fiber mat.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: March 20, 2018
    Assignee: Johns Manville
    Inventors: Zhihua Guo, Souvik Nandi, Jawed Asrar, Albert G Dietz, III
  • Publication number: 20170358787
    Abstract: According to one embodiment, a nonwoven fiber mat includes between 10% and 50% by weight of a plurality of first glass fibers having an average diameter of less than 5 ?m and between 50% and 90% by weight of a plurality of second glass fibers having an average diameter of greater than 6 ?m. The nonwoven fiber mat also includes an acid resistant binder that binds the first and second glass fibers together. The nonwoven fiber mat has an average pore size of between 1 and 100 ?m and exhibits an air permeability of below 100 cubic feet per minute per square foot (cfm/ft2) as measured by the Frazier test at 125 Pa according to ASTM Standard Method D737.
    Type: Application
    Filed: August 25, 2017
    Publication date: December 14, 2017
    Inventors: Zhihua Guo, Gautam Sharma, Souvik Nandi, Jawed Asrar, Albert G Dietz, III
  • Patent number: 9843048
    Abstract: Embodiments of the invention provide batteries, electrodes, and methods of making the same. According to one embodiment, a battery may include a positive plate having a grid pasted with a lead oxide material, a negative plate having a grid pasted with a lead based material, a separator separating the positive plate and the negative plate, and an electrolyte. A nonwoven glass mat may be in contact with a surface of either or both the positive plate or the negative plate to reinforce the plate. The nonwoven glass mat may include a plurality of first coarse fibers having fiber diameters between about 6 ?m and 11 ?m and a plurality of second coarse fibers having fiber diameters between about 10 ?m and 20 ?m.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: December 12, 2017
    Assignee: Johns Manville
    Inventors: Zhihua Guo, Souvik Nandi, Jawed Asrar, Albert G Dietz, III
  • Publication number: 20170346076
    Abstract: A lead-acid battery includes a first electrode with a first grid, and a first mixture pasted onto the first grid. The first mixture includes a first plate material with acid resistant glass fibers that resist shedding of the first plate material during operation of the lead-acid battery.
    Type: Application
    Filed: May 31, 2016
    Publication date: November 30, 2017
    Inventors: Zhihua Guo, Gautam Sharma, Souvik Nandi, Jawed Asrar, Albert G. Dietz, III
  • Publication number: 20170288188
    Abstract: Glass-fiber mats for lead-acid batteries are described. The glass-fiber mats may include a plurality of glass fibers held together with a binder. The binder may be made from a binder composition that includes (i) an acid resistant polymer, and (ii) a hydrophilic agent. The hydrophilic agent increases the wettability of the glass-fiber mat such that the glass-fiber mat forms a contact angle with water or aqueous sulfuric acid solution of 70° or less. Also described are methods of making the glass-fiber mats that include applying a binder composition to the glass fibers, and including a hydrophilic agent in the glass fiber mat that increases the wettability of the mat. The hydrophilic agent may be added to the binder composition, applied to the glass-fiber mat, or both.
    Type: Application
    Filed: June 14, 2017
    Publication date: October 5, 2017
    Inventors: Albert G. Dietz, III, Zhihua Guo, Souvik Nandi, Gautam Sharma
  • Patent number: 9780347
    Abstract: Glass-fiber mats for lead-acid batteries are described. The glass-fiber mats may include a plurality of glass fibers held together with a binder. The binder may be made from a binder composition that includes (i) an acid resistant polymer, and (ii) a hydrophilic agent. The hydrophilic agent increases the wettability of the glass-fiber mat such that the glass-fiber mat forms a contact angle with water or aqueous sulfuric acid solution of 70° or less. Also described are methods of making the glass-fiber mats that include applying a binder composition to the glass fibers, and including a hydrophilic agent in the glass fiber mat that increases the wettability of the mat. The hydrophilic agent may be added to the binder composition, applied to the glass-fiber mat, or both.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: October 3, 2017
    Assignee: Johns Manville
    Inventors: Albert G Dietz, III, Zhihua Guo, Souvik Nandi, Gautam Sharma