Patents by Inventor Zeiad M. Muntasser
Zeiad M. Muntasser 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).
-
Patent number: 8940430Abstract: A nickel zinc battery cell includes a metallic zinc-based current collection substrate as a part of the negative electrode. The metallic zinc-based current collector may be made of or be coated with a zinc metal or zinc alloy material and may be a foil, perforated, or expanded material. Battery cells incorporating the zinc-based current collector exhibit good cycle lifetime and initial charge performance.Type: GrantFiled: February 8, 2008Date of Patent: January 27, 2015Assignee: PowerGenix Systems, Inc.Inventors: Jeffrey Phillips, Samaresh Mohanta, Zhen Gang Fan, Ru Jun Ma, Feng Feng, Lou Uzel, Chi Yau, Jason Zhao, Zeiad M. Muntasser
-
Patent number: 8372542Abstract: An improved Ni—Zn cell with a negative electrode substrate plated with tin or tin and zinc during manufacturing has a reduced gassing rate. The copper or brass substrate is electrolytic cleaned, activated, electroplated with a matte surface to a defined thickness range, pasted with zinc oxide electrochemically active material, and baked. The defined plating thickness range of 40-80 ?In maximizes formation of an intermetallic compound Cu3Sn that helps to suppress the copper diffusion from under plating layer to the surface and eliminates formation of an intermetallic compound Cu6Sn5 during baking to provide adequate corrosion resistance during battery operation.Type: GrantFiled: April 20, 2012Date of Patent: February 12, 2013Assignee: PowerGenix Systems, Inc.Inventors: Feng Feng, Jeffrey Phillips, Samaresh Mohanta, Jeff Barton, Zeiad M. Muntasser
-
Publication number: 20120205248Abstract: An improved Ni—Zn cell with a negative electrode substrate plated with tin or tin and zinc during manufacturing has a reduced gassing rate. The copper or brass substrate is electrolytic cleaned, activated, electroplated with a matte surface to a defined thickness range, pasted with zinc oxide electrochemically active material, and baked. The defined plating thickness range of 40-80 ?In maximizes formation of an intermetallic compound Cu3Sn that helps to suppress the copper diffusion from under plating layer to the surface and eliminates formation of an intermetallic compound Cu6Sn5 during baking to provide adequate corrosion resistance during battery operation.Type: ApplicationFiled: April 20, 2012Publication date: August 16, 2012Applicant: PowerGenix Systems, Inc.Inventors: Feng Feng, Jeffrey Phillips, Sam Mohanta, Jeff Barton, Zeiad M. Muntasser
-
Patent number: 8182946Abstract: An improved Ni—Zn cell with a negative electrode substrate plated with tin or tin and zinc during manufacturing has a reduced gassing rate. The copper or brass substrate is electrolytic cleaned, activated, electroplated with a matte surface to a defined thickness range, pasted with zinc oxide electrochemically active material, and baked. The defined plating thickness range of 40-80 ?In maximizes formation of an intermetallic compound Cu3Sn that helps to suppress the copper diffusion from under plating layer to the surface and eliminates formation of an intermetallic compound Cu6Sn5 during baking to provide adequate corrosion resistance during battery operation.Type: GrantFiled: March 23, 2011Date of Patent: May 22, 2012Assignee: Powergenix Systems, Inc.Inventors: Feng Feng, Jeffrey Phillips, Samaresh Mohanta, Jeff Barton, Zeiad M. Muntasser
-
Publication number: 20120018669Abstract: Active material for a positive electrode of a rechargeable alkaline electrochemical cell is made with nickel hydroxide particles or cobalt-coated nickel hydroxide particles treated with strongly oxidizing reagents such as alkali metal persulfate in alkaline solution. The active material also may be made with cobalt-coated nickel hydroxide particles having a high percentage of cobalt(III) on a surface or an average cobalt oxidation state of about 3 measured across the particles. The treated nickel hydroxide or cobalt-coated nickel hydroxide decreases the cobalt solubility in the alkaline electrolyte and increases the high-rate charge and discharge capability. The lower cobalt solubility decreases cobalt migration that can increase self discharge and lead to premature failure.Type: ApplicationFiled: September 30, 2011Publication date: January 26, 2012Applicant: POWERGENIX SYSTEMS, INC.Inventors: Mingming GENG, Samaresh MOHANTA, Jeffrey PHILLIPS, Zeiad M. MUNTASSER, Jeff BARTON
-
Patent number: 8043748Abstract: Active material for a positive electrode of a rechargeable alkaline electrochemical cell is made with nickel hydroxide particles or cobalt-coated nickel hydroxide particles treated with strongly oxidizing reagents such as alkali metal persulfate in alkaline solution. The active material also may be made with cobalt-coated nickel hydroxide particles having a high percentage of cobalt(III) on a surface or an average cobalt oxidation state of about 3 measured across the particles. The treated nickel hydroxide or cobalt-coated nickel hydroxide decreases the cobalt solubility in the alkaline electrolyte and increases the high-rate charge and discharge capability. The lower cobalt solubility decreases cobalt migration that can increase self discharge and lead to premature failure.Type: GrantFiled: February 4, 2009Date of Patent: October 25, 2011Assignee: PowerGenix Systems, Inc.Inventors: Mingming Geng, Samaresh Mohanta, Jeffrey Phillips, Zeiad M. Muntasser, Jeff Barton
-
Publication number: 20110168565Abstract: An improved Ni—Zn cell with a negative electrode substrate plated with tin or tin and zinc during manufacturing has a reduced gassing rate. The copper or brass substrate is electrolytic cleaned, activated, electroplated with a matte surface to a defined thickness range, pasted with zinc oxide electrochemically active material, and baked. The defined plating thickness range of 40-80 ?In maximizes formation of an intermetallic compound Cu3Sn that helps to suppress the copper diffusion from under plating layer to the surface and eliminates formation of an intermetallic compound Cu6Sn5 during baking to provide adequate corrosion resistance during battery operation.Type: ApplicationFiled: March 23, 2011Publication date: July 14, 2011Applicant: POWERGENIX SYSTEMS, INC.Inventors: Feng Feng, Jeffrey Phillips, Sam Mohanta, Jeff Barton, Zeiad M. Muntasser
-
Patent number: 7931988Abstract: An improved Ni—Zn cell with a negative electrode substrate plated with tin or tin and zinc during manufacturing has a reduced gassing rate. The copper or brass substrate is electrolytic cleaned, activated, electroplated with a matte surface to a defined thickness range, pasted with zinc oxide electrochemically active material, and baked. The defined plating thickness range of 40-80 ?In maximizes formation of an intermetallic compound Cu3Sn that helps to suppress the copper diffusion from under plating layer to the surface and eliminates formation of an intermetallic compound Cu6Sn5 during baking to provide adequate corrosion resistance during battery operation.Type: GrantFiled: October 5, 2007Date of Patent: April 26, 2011Assignee: Powergenix Systems, Inc.Inventors: Feng Feng, Jeffrey Phillips, Samaresh Mohanta, Jeff Barton, Zeiad M. Muntasser
-
Publication number: 20100092857Abstract: A nickel zinc battery cell includes a metallic zinc-based current collection substrate as a part of the negative electrode. The metallic zinc-based current collector may be made of or be coated with a zinc metal or zinc alloy material and may be a foil, perforated, or expanded material. Battery cells incorporating the zinc-based current collector exhibit good cycle lifetime and initial charge performance.Type: ApplicationFiled: February 8, 2008Publication date: April 15, 2010Applicant: POWERGENIX SYSTEMS, INC.Inventors: Jeffrey Phillips, Samaresh Mohanta, Zheng Gang Fan, Ru Jun Ma, Feng Feng, Lou Uzel, Chi Yau, Jason Zhao, Zeiad M. Muntasser
-
Publication number: 20090202904Abstract: Active material for a positive electrode of a rechargeable alkaline electrochemical cell is made with nickel hydroxide particles or cobalt-coated nickel hydroxide particles treated with strongly oxidizing reagents such as alkali metal persulfate in alkaline solution. The active material also may be made with cobalt-coated nickel hydroxide particles having a high percentage of cobalt(III) on a surface or an average cobalt oxidation state of about 3 measured across the particles. The treated nickel hydroxide or cobalt-coated nickel hydroxide decreases the cobalt solubility in the alkaline electrolyte and increases the high-rate charge and discharge capability. The lower cobalt solubility decreases cobalt migration that can increase self discharge and lead to premature failure.Type: ApplicationFiled: February 4, 2009Publication date: August 13, 2009Applicant: PowerGenix Systems, Inc.Inventors: Mingming Geng, Samaresh Mohanta, Jeffrey Phillips, Zeiad M. Muntasser, Jeff Barton
-
Publication number: 20090090636Abstract: An improved Ni—Zn cell with a negative electrode substrate plated with tin or tin and zinc during manufacturing has a reduced gassing rate. The copper or brass substrate is electrolytic cleaned, activated, electroplated with a matte surface to a defined thickness range, pasted with zinc oxide electrochemically active material, and baked. The defined plating thickness range of 40-80 ?In maximizes formation of an intermetallic compound Cu3Sn that helps to suppress the copper diffusion from under plating layer to the surface and eliminates formation of an intermetallic compound Cu6Sn5 during baking to provide adequate corrosion resistance during battery operation.Type: ApplicationFiled: October 5, 2007Publication date: April 9, 2009Applicant: POWERGENIX SYSTEMS, INC.Inventors: Feng Feng, Jeffrey Phillips, Sam Mohanta, Jeff Barton, Zeiad M. Muntasser