Patents by Inventor Jack W. Marple
Jack W. Marple 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).
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Patent number: 10826060Abstract: An alkaline electrochemical cell, preferably a zinc/air cell which includes a container; a negative electrode, a positive electrode, wherein said negative electrode and said positive electrode are disposed within the container, a separator located between the negative electrode and the positive electrode, and an alkaline electrolyte, wherein the negative electrode comprises zinc, and a branched chain fluorosurfactant. The fluorosurfactant is preferably a sulfotricarballylate surfactant with multiple fluorinated end groups.Type: GrantFiled: June 11, 2019Date of Patent: November 3, 2020Assignee: Energizer Brands, LLCInventor: Jack W. Marple
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Publication number: 20190363355Abstract: An alkaline electrochemical cell, preferably a zinc/air cell which includes a container; a negative electrode, a positive electrode, wherein said negative electrode and said positive electrode are disposed within the container, a separator located between the negative electrode and the positive electrode, and an alkaline electrolyte, wherein the negative electrode comprises zinc, and a branched chain fluorosurfactant. The fluorosurfactant is preferably a sulfotricarballylate surfactant with multiple fluorinated end groups.Type: ApplicationFiled: June 11, 2019Publication date: November 28, 2019Inventor: Jack W. Marple
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Patent number: 10381643Abstract: An alkaline electrochemical cell, preferably a zinc/air cell which includes a container; a negative electrode, a positive electrode, wherein said negative electrode and said positive electrode are disposed within the container, a separator located between the negative electrode and the positive electrode, and an alkaline electrolyte, wherein the negative electrode comprises zinc, and a branched chain fluorosurfactant. The fluorosurfactant is preferably a sulfotricarballylate surfactant with multiple fluorinated end groups.Type: GrantFiled: October 7, 2015Date of Patent: August 13, 2019Assignee: Energizer Brands, LLCInventor: Jack W. Marple
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Patent number: 10319991Abstract: An alkaline electrochemical cell, preferably a zinc/air cell which includes a container; a negative electrode, a positive electrode, wherein said negative electrode and said positive electrode are disposed within the container, and an alkaline electrolyte, wherein the negative electrode comprises zinc, a branched chain fluorosurfactant, barium sulfate (and, more specifically, amino- and/or epoxy-functionalized barium sulfate) and nano sized zinc oxide. The negative electrode composition supports high zinc to electrolyte weight ratios.Type: GrantFiled: October 23, 2015Date of Patent: June 11, 2019Assignee: Energizer Brands, LLCInventor: Jack W. Marple
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Publication number: 20190051958Abstract: A multi-faceted zinc-air electrochemical cell design holistically leverages interactions between components, especially with respect to conductive carbons from differing sources, lamination and the resulting impact it has on the air electrode's surface and other additives that impact the relative hydrophilicity of the membrane and/or performance of the anode, to improve the overall reliability and performance of the resulting battery.Type: ApplicationFiled: February 11, 2016Publication date: February 14, 2019Inventors: Jack W. Marple, Thomas J. Sherry
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Patent number: 10205206Abstract: A multi-faceted zinc-air electrochemical cell design holistically leverages interactions between components, especially with respect to conductive carbons from differing sources, lamination and the resulting impact it has on the air electrode's surface and other additives that impact the relative hydrophilicity of the membrane and/or performance of the anode, to improve the overall reliability and performance of the resulting battery.Type: GrantFiled: February 11, 2016Date of Patent: February 12, 2019Assignee: Energizer Brands, LLCInventors: Jack W. Marple, Thomas J. Sherry
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Publication number: 20170358793Abstract: An alkaline electrochemical cell, preferably a zinc/air cell which includes a container; a negative electrode, a positive electrode, wherein said negative electrode and said positive electrode are disposed within the container, and an alkaline electrolyte, wherein the negative electrode comprises zinc, a branched chain fluorosurfactant, barium sulfate (and, more specifically, amino- and/or epoxy-funcationalized barium sulfate) and nano sized zinc oxide. The negative electrode composition supports high zinc to electrolyte weight ratios.Type: ApplicationFiled: October 23, 2015Publication date: December 14, 2017Inventor: Jack W. Marple
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Publication number: 20170294650Abstract: An alkaline electrochemical cell, preferably a zinc/air cell which includes a container; a negative electrode, a positive electrode, wherein said negative electrode and said positive electrode are disposed within the container, a separator located between the negative electrode and the positive electrode, and an alkaline electrolyte, wherein the negative electrode comprises zinc, and a branched chain fluorosurfactant. The fluorosurfactant is preferably a sulfotricarballylate surfactant with multiple fluorinated end groups.Type: ApplicationFiled: October 7, 2015Publication date: October 12, 2017Inventor: Jack W. MARPLE
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Publication number: 20170237133Abstract: A multi-faceted zinc-air electrochemical cell design holistically leverages interactions between components, especially with respect to conductive carbons from differing sources, lamination and the resulting impact it has on the air electrode's surface and other additives that impact the relative hydrophilicity of the membrane and/or performance of the anode, to improve the overall reliability and performance of the resulting battery.Type: ApplicationFiled: February 11, 2016Publication date: August 17, 2017Inventors: Jack W. Marple, Thomas J. Sherry
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Patent number: 9472807Abstract: A lithium/iron disulfide electrochemical battery cell with a high discharge capacity. The cell has a lithium negative electrode, an iron disulfide positive electrode and a nonaqueous electrolyte. The iron disulfide of the positive electrode has a controlled average particle size range which allows the electrochemical cells to exhibit desired properties in both low and high rate applications. In various embodiments, the iron disulfide particles are wet milled, preferably utilizing a media mill or milled utilizing a non-mechanical mill such as a jet mill, which reduces the iron disulfide particles to a desired average particle size range for incorporation into the positive electrode.Type: GrantFiled: October 8, 2012Date of Patent: October 18, 2016Assignee: Energizer Brands, LLCInventors: Jack W. Marple, Michael W. Wemple
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Patent number: 9325018Abstract: The invention relates to primary electrochemical cells, in addition to methods for manufacturing and discharging the same, having a jellyroll electrode assembly that includes a positive electrode with a coating comprising iron disulfide deposited on a current collector situated on the outermost circumference of the jellyroll, a lithium-based negative electrode and a polymeric separator. More particularly, the invention relates to a cell design which optimizes cell capacity and substantially eliminates premature voltage drop-off on intermittent service testing by eliminating the edge effect through, for example, deliberately relieving stack pressure and/or extending the distance lithium ions proximate to the terminal end of the positive electrode must travel to undergo an electrochemical reaction in that region.Type: GrantFiled: June 9, 2014Date of Patent: April 26, 2016Assignee: ENERGIZER BRANDS, LLCInventors: Jack W. Marple, Duane James, Weiwei Huang
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Patent number: 9099741Abstract: A cathode, electrochemical cell and process for making either is disclosed. The cathode includes iron disulfide which exhibits multiple peaks representing distinct maxima of mean diameters for the volume-based particle size distribution. All of the maxima are less than 20 microns. A combination of natural pyrite ore and synthetic iron disulfide may be mixed to achieve the desired distribution, or a combination of natural pyrite ores may be processed in different manners to achieve the desired characteristics.Type: GrantFiled: June 27, 2012Date of Patent: August 4, 2015Assignee: Eveready Battery Company, Inc.Inventors: Jack W. Marple, Michael W. Wemple, Ronald Crawford, Weiwei Huang, George L. Schimek
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Patent number: 8859146Abstract: The invention relates to primary electrochemical cells, in addition to methods for manufacturing and discharging the same, having a jellyroll electrode assembly that includes a positive electrode with a coating comprising iron disulfide deposited on a current collector situated on the outermost circumference of the jellyroll, a lithium-based negative electrode and a polymeric separator. More particularly, the invention relates to a cell design which optimizes cell capacity and substantially eliminates premature voltage drop-off on intermittent service testing by eliminating the edge effect through, for example, deliberately relieving stack pressure and/or extending the distance lithium ions proximate to the terminal end of the positive electrode must travel to undergo an electrochemical reaction in that region.Type: GrantFiled: March 28, 2011Date of Patent: October 14, 2014Assignee: Eveready Battery Company, Inc.Inventors: Jack W. Marple, Duane James, Weiwei Huang
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Publication number: 20140283377Abstract: The invention relates to primary electrochemical cells, in addition to methods for manufacturing and discharging the same, having a jellyroll electrode assembly that includes a positive electrode with a coating comprising iron disulfide deposited on a current collector situated on the outermost circumference of the jellyroll, a lithium-based negative electrode and a polymeric separator. More particularly, the invention relates to a cell design which optimizes cell capacity and substantially eliminates premature voltage drop-off on intermittent service testing by eliminating the edge effect through, for example, deliberately relieving stack pressure and/or extending the distance lithium ions proximate to the terminal end of the positive electrode must travel to undergo an electrochemical reaction in that region.Type: ApplicationFiled: June 9, 2014Publication date: September 25, 2014Inventors: Jack W. Marple, Duane James, Weiwei Huang
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Patent number: 8785044Abstract: The invention relates to primary electrochemical cells having a jellyroll electrode assembly that includes a lithium-based negative electrode, a positive electrode with a coating comprising iron disulfide deposited on a current collector and a polymeric separator. More particularly, the invention relates to a cell designs and cathode formulations incorporating specific types of conductors to improve cell performance.Type: GrantFiled: August 26, 2010Date of Patent: July 22, 2014Assignee: Eveready Battery Company, Inc.Inventors: Jack W Marple, Weiwei Huang, Michael W Wemple
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Patent number: 8642212Abstract: A lithium/iron disulfide electrochemical battery cell with a high discharge capacity. The cell has a lithium negative electrode, an iron disulfide positive electrode and a nonaqueous electrolyte. The positive electrode mixture containing the iron disulfide contains highly packed solid materials, with little space around the solid particles, to provide a high concentration of iron disulfide within the mixture. The separator is thin, to allow more space within the cell for active materials, yet strong enough to prevent short circuits between the positive and negative electrodes under abusive conditions, even when swelling of the cathode during cell discharge places additional stressed on the separator. As a result, the ratio of the interfacial capacity of the positive electrode to the electrode interfacial volume is high, as is the actual capacity on low rate/low power and high rate/high power discharge.Type: GrantFiled: June 22, 2011Date of Patent: February 4, 2014Assignee: Eveready Battery Company, Inc.Inventor: Jack W Marple
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Patent number: 8617259Abstract: The invention relates to electrochemical cells having a jellyroll electrode assembly that includes a lithium-based negative electrode, a positive electrode with a coating comprising greater than about 94 wt. % of iron disulfide.Type: GrantFiled: May 31, 2013Date of Patent: December 31, 2013Assignee: Eveready Battery Company, Inc.Inventor: Jack W. Marple
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Patent number: 8460824Abstract: The invention relates to electrochemical cells having a jellyroll electrode assembly that includes a lithium-based negative electrode, a positive electrode with a coating comprising greater than about 94 wt. % of iron disulfide.Type: GrantFiled: October 17, 2008Date of Patent: June 11, 2013Assignee: Eveready Battery Company, Inc.Inventor: Jack W Marple
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Publication number: 20130004848Abstract: A cathode, electrochemical cell and process for making either is disclosed. The cathode includes iron disulfide which exhibits multiple peaks representing distinct maxima of mean diameters for the volume-based particle size distribution. All of the maxima are less than 20 microns. A combination of natural pyrite ore and synthetic iron disulfide may be mixed to achieve the desired distribution, or a combination of natural pyrite ores may be processed in different manners to achieve the desired characteristics.Type: ApplicationFiled: June 27, 2012Publication date: January 3, 2013Applicant: EVEREADY BATTERY COMPANY, INC.Inventors: Jack W. Marple, Michael W. Wemple, Ronald Crawford, Weiwei Huang, George L. Schimek
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Patent number: 8283071Abstract: A lithium/iron disulfide electrochemical battery cell with a high discharge capacity. The cell has a lithium negative electrode, an iron disulfide positive electrode and a nonaqueous electrolyte. The iron disulfide of the positive electrode has a controlled average particle size range which allows the electrochemical cells to exhibit desired properties in both low and high rate applications. In various embodiments, the iron disulfide particles are wet milled, preferably utilizing a media mill or milled utilizing a non-mechanical mill such as a jet mill, which reduces the iron disulfide particles to a desired average particle size range for incorporation into the positive electrode.Type: GrantFiled: August 11, 2011Date of Patent: October 9, 2012Assignee: Eveready Battery Company, Inc.Inventors: Jack W Marple, Michael W Wemple