Patents by Inventor Anjan BANERJEE
Anjan BANERJEE 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: 10741812Abstract: Methods of scavenging acid in a lithium-ion electrochemical cell are provided. An electrolyte solution that contains an acid or is capable of forming the acid is contacted with a polymer comprising a nitrogen-containing acid-trapping moiety selected from the group consisting of: an amine group, a pyridine group, and combinations thereof. The nitrogen-containing acid-trapping moiety scavenges acidic species present in the electrolyte solution by participating in a Lewis acid-base neutralization reaction. The electrolyte solution comprises a lithium salt and one or more solvents and is contained in the electrochemical cell that further comprises a first electrode, a second electrode having an opposite polarity from the first electrode, and a porous separator. Lithium ions can be cycled through the separator and electrolyte solution from the first electrode to the second electrode, where acid generated during the cycling is scavenged by the polymer comprising a nitrogen-containing acid-trapping moiety.Type: GrantFiled: June 19, 2017Date of Patent: August 11, 2020Assignees: GM GLOBAL TECHNOLOGY OPERATIONS LLC, BAR-ILAN UNIVERSITYInventors: Shalom Luski, Doron Aurbach, Timothy J. Fuller, Ion C. Halalay, Anjan Banerjee, Baruch Ziv, Raghunathan K
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Publication number: 20180366781Abstract: Methods of scavenging acid in a lithium-ion electrochemical cell are provided. An electrolyte solution that contains an acid or is capable of forming the acid is contacted with a polymer comprising a nitrogen-containing acid-trapping moiety selected from the group consisting of: an amine group, a pyridine group, and combinations thereof. The nitrogen-containing acid-trapping moiety scavenges acidic species present in the electrolyte solution by participating in a Lewis acid-base neutralization reaction. The electrolyte solution comprises a lithium salt and one or more solvents and is contained in the electrochemical cell that further comprises a first electrode, a second electrode having an opposite polarity from the first electrode, and a porous separator. Lithium ions can be cycled through the separator and electrolyte solution from the first electrode to the second electrode, where acid generated during the cycling is scavenged by the polymer comprising a nitrogen-containing acid-trapping moiety.Type: ApplicationFiled: June 19, 2017Publication date: December 20, 2018Inventors: Shalom Luski, Doron Aurbach, Timothy J. Fuller, Ion C. Halalay, Anjan Banerjee, Baruch Ziv, Raghunathan K
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Patent number: 10050313Abstract: A lithium ion battery includes a positive and a negative electrode, and a nanoporous or microporous polymer separator soaked in electrolyte solution and disposed between the electrodes. At least two different chelating agents are included and selected to complex with: i) two or more different transition metal ions; ii) a transition metal ion in two or more different oxidation states; or iii) both i) and ii). The at least two different selected chelating agents are to complex with transition metal ions in a manner sufficient to not affect movement of lithium ions across the separator during operation of the battery. The chelating agents are: dissolved or dispersed in the electrolyte solution; grafted onto the polymer of the separator; attached to the binder material of the negative and/or positive electrode; disposed within pores of the separator; coated on a surface of the separator; and/or coated on a surface of an electrode.Type: GrantFiled: June 19, 2016Date of Patent: August 14, 2018Assignees: GM GLOBAL TECHNOLOGY OPERATIONS LLC, BAR-ILAN UNIVERSITYInventors: Shalom Luski, Doron Aurbach, Bob R. Powell, Jr., Ion C. Halalay, Timothy J. Fuller, Anjan Banerjee, Baruch Ziv, Yuliya Shilina
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Patent number: 10008749Abstract: A lithium ion battery includes positive and negative electrodes, and a nanoporous or microporous polymer separator soaked in an electrolyte solution, between the positive electrode and the negative electrode. Chelating agent(s) are included to complex with transition metal ions while not affecting movement of lithium ions across the separator during operation of the lithium ion battery. The chelating agents are: dissolved in the electrolyte solution; grafted onto the polymer of the separator; attached to the binder material of the negative and/or positive electrode; coated on a surface of the separator; and/or coated on a surface of the negative and/or positive electrode. The chelating agents are selected from: ion traps in molecular form selected from polyamines, thiols and alkali metal salts of organic acids; polymers functionalized with alkali metal salts of organic acids; polymers functionalized with nitrogen-containing functional groups; and polymers functionalized with two or more functional groups.Type: GrantFiled: June 19, 2016Date of Patent: June 26, 2018Assignees: GM GLOBAL TECHNOLOGY OPERATIONS LLC, BAR-ILAN UNIVERSITYInventors: Shalom Luski, Doron Aurbach, Ion C. Halalay, Timothy J. Fuller, Bob R. Powell, Jr., Anjan Banerjee, Baruch Ziv, Yuliya Shilina
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Publication number: 20170365883Abstract: A lithium ion battery includes a positive and a negative electrode, and a nanoporous or microporous polymer separator soaked in electrolyte solution and disposed between the electrodes. At least two different chelating agents are included and selected to complex with: i) two or more different transition metal ions; ii) a transition metal ion in two or more different oxidation states; or iii) both i) and ii). The at least two different selected chelating agents are to complex with transition metal ions in a manner sufficient to not affect movement of lithium ions across the separator during operation of the battery. The chelating agents are: dissolved or dispersed in the electrolyte solution; grafted onto the polymer of the separator; attached to the binder material of the negative and/or positive electrode; disposed within pores of the separator; coated on a surface of the separator; and/or coated on a surface of an electrode.Type: ApplicationFiled: June 19, 2016Publication date: December 21, 2017Inventors: Shalom Luski, Doron Aurbach, Bob R. Powell, JR., Ion C. Halalay, Timothy J. Fuller, Anjan Banerjee, Baruch Ziv, Yuliya Shilina
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Publication number: 20170365882Abstract: A lithium ion battery includes positive and negative electrodes, and a nanoporous or microporous polymer separator soaked in an electrolyte solution, between the positive electrode and the negative electrode. Chelating agent(s) are included to complex with transition metal ions while not affecting movement of lithium ions across the separator during operation of the lithium ion battery. The chelating agents are: dissolved in the electrolyte solution; grafted onto the polymer of the separator; attached to the binder material of the negative and/or positive electrode; coated on a surface of the separator; and/or coated on a surface of the negative and/or positive electrode. The chelating agents are selected from: ion traps in molecular form selected from polyamines, thiols and alkali metal salts of organic acids; polymers functionalized with alkali metal salts of organic acids; polymers functionalized with nitrogen-containing functional groups; and polymers functionalized with two or more functional groups.Type: ApplicationFiled: June 19, 2016Publication date: December 21, 2017Inventors: Shalom Luski, Doron Aurbach, Ion C. Halalay, Timothy J. Fuller, Bob R. Powell, JR., Anjan Banerjee, Baruch Ziv, Yuliya Shilina
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Patent number: 9036332Abstract: The present disclosure is related to hybrid capacitors specifically to PbO2/Activated Carbon hybrid ultracapacitors. The present disclosure is also related to hybrid capacitors specifically to PbO2/Activated Carbon hybrid ultracapacitors with an inorganic thixotropic-gelled-polymeric-electrolyte. The hybrid ultracapacitors of the present disclosure is simple to assemble, bereft of impurities and can be fast charged/discharged with high faradiac-efficiency.Type: GrantFiled: July 18, 2012Date of Patent: May 19, 2015Assignee: Indian Institute of ScienceInventors: Ashok Kumar Shukla, Anjan Banerjee, Musuwathi Krishnamoorthy Ravikumar, Shaik Abdul Gaffoor
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Publication number: 20120327560Abstract: The present disclosure is related to hybrid capacitors specifically to PbO2/Activated Carbon hybrid ultracapacitors. The present disclosure is also related to hybrid capacitors specifically to PbO2/Activated Carbon hybrid ultracapacitors with an inorganic thixotropic-gelled-polymeric-electrolyte. The hybrid ultracapacitors of the present disclosure is simple to assemble, bereft of impurities and can be fast charged/discharged with high faradiac-efficiency.Type: ApplicationFiled: July 18, 2012Publication date: December 27, 2012Applicant: INDIAN INSTITUTE OF SCIENCEInventors: Ashok Kumar SHUKLA, Anjan BANERJEE, Musuwathi Krishnamoorthy RAVIKUMAR, Shaik Abdul GAFFOOR