Patents by Inventor Jane A. Blasi
Jane A. Blasi 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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Publication number: 20120096708Abstract: An electrochemical secondary cell is disclosed. The cell includes a cathode, an anode, a current collector including aluminum, and an electrolyte containing a perchlorate salt and a second salt. The electrolyte is essentially free of LiPF6.Type: ApplicationFiled: January 3, 2012Publication date: April 26, 2012Inventors: Jane A. Blasi, Nikolai N. Issaev, Michael Pozin
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Publication number: 20050089760Abstract: An electrochemical secondary cell is disclosed. The cell includes a cathode, an anode, a current collector including aluminum, and an electrolyte containing a perchlorate salt and a second salt. The electrolyte is essentially free of LiPF6.Type: ApplicationFiled: November 17, 2004Publication date: April 28, 2005Inventors: Jane Blasi, Nikolai Issaev, Michael Pozin
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Publication number: 20030113622Abstract: An electrochemical secondary cell is disclosed. The cell includes a cathode, an anode, a current collector including aluminum, and an electrolyte containing a perchlorate salt and a second salt. The electrolyte is essentially free of LiPF6.Type: ApplicationFiled: December 14, 2001Publication date: June 19, 2003Inventors: Jane A. Blasi, Nikolai N. Issaev, Michael Pozin
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Patent number: 6443999Abstract: A primary lithium cell having a wound electrode assembly. The electrode assembly comprises an anode comprising lithium, a cathode comprising a manganese dioxide and an electrolyte permeable separator therebetween. The electrode assembly comprises a cathode sheet, an anode sheet and electrolyte permeable separator sheet therebetween. The sheets are wound into a spiral roll. An exposed edge of each revolution of the separator sheet is then heat treated, for example, by applying a heated platen thereto to mold said exposed edge into a continuous separator membrane. The continuous separator membrane, so formed, covers and seals off said edge of adjacent revolutions of the cathode sheet and thus provides electrical insulation therefor. The electrode assembly can then be inserted into the cell casing so that the continuous separator membrane abuts a surface of the casing and provides electrical insulation between the casing and the wound cathode sheet.Type: GrantFiled: March 16, 2000Date of Patent: September 3, 2002Assignee: The Gillette CompanyInventors: Reynald A. Cantave, Fred J. Berkowitz, William T. McHugh, Jane A. Blasi, Ernesto Figueira
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Patent number: 6083639Abstract: A current interrupt assembly for electrochemical cells is disclosed. The current interrupter assembly may be a self-contained, sealed unit which may be separately inserted into the cell during cell construction. Several current interrupt assemblies may be inserted in the cell. The current interrupter assembly has particular utility for thin rechargeable cells and when inserted in the cell forms a portion of the electrical pathway between a cell electrode and corresponding terminal. The current interrupt mechanism comprises a thin thermally responsive member preferably comprising a disk of a shape memory metal alloy having a curved surface. When cell temperature exceeds a predetermined value the disk deflects to cause a break in the electrical pathway within the assembly. The assembly may include therein a flexible electrically conductive member which forms a part of the electrical pathway within the assembly and which is physically responsive to deflection of the thermally responsive member.Type: GrantFiled: August 22, 1997Date of Patent: July 4, 2000Assignee: Duracell Inc.Inventors: William T. McHugh, Viet H. Vu, Lucien P. Fontaine, Jane A. Blasi, Reynald Cantave
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Patent number: 6037071Abstract: A current interrupt mechanism for electrochemical cells is disclosed. A thermally activated current interrupt mechanism is integrated into an end cap assembly for an electrochemical cell. The thermally responsive mechanism preferably includes a free floating bimetallic disk or shape memory alloy member which deforms when exposed to elevated temperature causing a break in an electrical pathway within the end cap assembly. This prevents current from flowing through the cell and effectively shuts down an operating cell. The thermally responsive mechanism may include a heat producing electrical resistance means, preferably a Zener diode, to enhance thermal sensitivity. The end cap assembly may include a pressure responsive mechanism which ruptures when there is extreme gas pressure buildup. Gas is allowed to escape from the cell interior to the external environment through a series of vent apertures within the end cap assembly.Type: GrantFiled: November 6, 1997Date of Patent: March 14, 2000Assignee: Duracell IncInventors: Jeffrey Poirier, Paul Cheeseman, Michael McDermott, Jane A. Blasi, Reynald Cantave, Jeffrey Hewes, Yelena Kouznetsova, Bhupendra Patel, Alex Kaplan, Viet Vu, William T. McHugh, Lucien P. Fontaine, Robert J. Pinault
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Patent number: 5998051Abstract: A current interrupt assembly for electrochemical cells is disclosed. The current interrupter assembly may be a self-contained, sealed unit which may be separately inserted into the cell during cell construction. Several current interrupt assemblies may be inserted in the cell. The current interrupter assembly has particular utility for thin rechargeable cells and when inserted in the cell forms a portion of the electrical pathway between a cell electrode and corresponding terminal. The current interrupt mechanism comprises a thin thermally responsive member preferably comprising a disk of a shape memory metal alloy having a curved surface. The current interrupt mechanism may include a heat producing electrical resistance means, preferably a Zener diode in proximity to the thermally responsive member. When cell temperature exceeds a predetermined value the disk deflects to cause a break in the electrical pathway within the assembly.Type: GrantFiled: November 6, 1997Date of Patent: December 7, 1999Assignee: Duracell Inc.Inventors: Jeffrey Poirier, Paul Cheeseman, Michael McDermott, Jane A. Blasi, Reynald Cantave, Jeffrey Hewes, Yelena Kouznetsova, Bhupendra Patel, Alex Kaplan, Viet Vu, William T. McHugh, Lucien P. Fontaine, Robert J. Pinault
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Patent number: 5879832Abstract: A current interrupt mechanism for electrochemical cells is disclosed. A thermally activated current interrupt mechanism is integrated into an end cap assembly for an electrochemical cell. The thermally responsive mechanism preferably includes a free floating bimetallic disk or shape memory alloy member which deforms when exposed to elevated temperature causing a break in an electrical pathway within the end cap assembly. This prevents current from flowing through the cell and effectively shuts down an operating cell. The end cap assembly may include a pressure responsive mechanism which ruptures when there is extreme gas pressure buildup. Gas is allowed to escape from the cell interior to the external environment through a series of vent apertures within the end cap assembly.Type: GrantFiled: April 10, 1997Date of Patent: March 9, 1999Assignee: Duracell Inc.Inventors: Viet H. Vu, William T. McHugh, Jane A. Blasi, Lucien P. Fontaine, Robert J. Pinault
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Patent number: 5750277Abstract: A current interrupt mechanism for electrochemical cells is disclosed. A thermally activated current interrupt mechanism is integrated into an end cap assembly for an electrochemical cell. The thermally responsive mechanism preferably includes a free floating bimetallic disk which deforms when exposed to elevated temperature causing a break in an electrical pathway within the end cap assembly. This prevents current from flowing through the cell and effectively shuts down an operating cell. Alternatively, the thermally responsive mechanism may include a meltable mass of material which melts when exposed to elevated temperature to break an electrical pathway within the end cap assembly. The end cap assembly may also include integrated therein a pressure responsive current interrupt mechanism.Type: GrantFiled: October 2, 1996Date of Patent: May 12, 1998Assignees: Texas Instruments Incorporated, Duracell Inc.Inventors: Viet H. Vu, Lucien P. Fontaine, William T. McHugh, Robert J. Pinault, Jane A. Blasi, Steven K. Sullivan, Geoffrey J. Paquin, Stephen S. Johnson, Gary K. Maus, Lance E. Cambra
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Patent number: 5691073Abstract: A current interrupt mechanism for electrochemical cells is disclosed. A thermally activated current interrupt mechanism is integrated into an end cap assembly for an electrochemical cell. The thermally responsive mechanism preferably includes a free floating bimetallic disk which deforms when exposed to elevated temperature causing a break in an electrical pathway within the end cap assembly. This prevents current from flowing through the cell and effectively shuts down an operating cell. Alternatively, the thermally responsive mechanism may include a meltable mass of material which melts when exposed to elevated temperature to break an electrical pathway within the end cap assembly. The end cap assembly may also include integrated therein a pressure responsive current interrupt mechanism.Type: GrantFiled: October 2, 1996Date of Patent: November 25, 1997Assignee: Duracell Inc.Inventors: Viet H. Vu, Jane A. Blasi, Robert J. Pinault, William T. McHugh, Lucien P. Fontaine
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Patent number: 5176968Abstract: The invention relates to a non-aqueous electrochemical cell having spirally wound electrodes and a separator having a basis weight of at least 20 g/m.sup.2 and comprising melt blown non-woven polypropylene fibers.Type: GrantFiled: December 27, 1990Date of Patent: January 5, 1993Assignee: Duracell Inc.Inventors: Jane A. Blasi, Richard M. Mank, Rowland A. Griffin