Patents by Inventor Pirmin Ulmann
Pirmin Ulmann 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: 11362324Abstract: A precursor composition of a negative electrode of a Li-ion battery, a negative electrode comprising or formed from the precursor composition, a Li-ion battery comprising the negative electrode, a device comprising the negative electrode, methods of making the precursor composition, negative electrode and Li-ion battery, and uses of the precursor composition or components thereof for increasing discharge capacity and/or reducing discharge capacity loss and/or improving cycling stability of a Li-ion battery comprising the negative electrode.Type: GrantFiled: September 12, 2017Date of Patent: June 14, 2022Assignee: Imerys Graphite & Carbon Switzerland Ltd.Inventors: Pirmin Ulmann, Sergio Pacheco Benito, Simone Zürcher, Marlene Rodlert-Bacilieri, Patrick Lanz, Michael Spahr
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Publication number: 20210265620Abstract: A silicon-carbon particulate composite suitable for use as active material in a negative electrode of a Li-ion battery, a precursor composition comprising the silicon-carbon particulate composite, a negative electrode comprising the silicon-carbon particulate composite and/or precursor composition, a Li-ion battery comprising the negative electrodes, a method of manufacturing the silicon-carbon particulate composite, precursor composition, negative electrode and Li-ion battery, the use of the silicon-carbon particulate composite in a negative electrode of a Li-ion battery to inhibit or prevent silicon pulverization during cycling, for example, during 1st cycle Li intercalation or de-intercalation and/or to maintain electrochemical capacity after 100 cycles, and a device, energy storage cell, or energy storage and conversion system comprising the silicon-carbon particulate composite and/or precursor composition.Type: ApplicationFiled: May 7, 2021Publication date: August 26, 2021Inventors: Pirmin ULMANN, Sergio PACHECO BENITO, Simone ZÜRCHER, Patrick LANZ, Michael SPAHR
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Patent number: 11081690Abstract: A silicon-carbon particulate composite suitable for use as active material in a negative electrode of a Li-ion battery, a precursor composition comprising the silicon-carbon particulate composite, a negative electrode comprising the silicon-carbon particulate composite and/or precursor composition, a Li-ion battery comprising the negative electrodes, a method of manufacturing the silicon-carbon particulate composite, precursor composition, negative electrode and Li-ion battery, the use of the silicon-carbon particulate composite in a negative electrode of a Li-ion battery to inhibit or prevent silicon pulverization during cycling, for example, during 1st cycle Li intercalation or de-intercalation and/or to maintain electrochemical capacity after 100 cycles, and a device, energy storage cell, or energy storage and conversion system comprising the silicon-carbon particulate composite and/or precursor composition.Type: GrantFiled: September 12, 2017Date of Patent: August 3, 2021Assignee: IMERYS GRAPHITE & CARBON SWITZERLAND LTD.Inventors: Pirmin Ulmann, Sergio Pacheco Benito, Simone Zürcher, Patrick Lanz, Michael Spahr
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Publication number: 20210171353Abstract: The present disclosure relates to compositions comprising at least two different carbonaceous components, at least one being a surface-modified carbonaceous particulate material typically having a relatively high spring-back, and at least one other component being a carbonaceous particulate material (such as graphite) generally having a lower spring-back and/or a higher BET specific surface area than the surface-modified carbonaceous material component. Such compositions are particularly useful for making negative electrodes for lithium-ion batteries and the like in view of their beneficial electrochemical properties, particularly in automotive and energy storage applications.Type: ApplicationFiled: January 20, 2017Publication date: June 10, 2021Inventors: Michal GULAS, Michael SPAHR, Patrick LANZ, Pirmin ULMANN, Hiroyuki MORIOKA, Hiroyuki TAKI, Milka NISHIKAWA, Kanako TAKIZAWA, Hiromasa WATANABE
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Publication number: 20200227747Abstract: The present disclosure relates to a novel process for preparing isotropic carbonaceous composite particles with favorable crystallographic, morphological & mechanical properties, wherein relatively fine carbonaceous primary particles are coated with a carbonaceous binder precursor material, agglomerated and finally heat-treated at temperatures between about 1850 and 3500° C. to convert the binder precursor material to non-graphitic or graphitic carbon, thereby resulting in stable highly isotropic carbonaceous composite materials wherein the primary particles of the aggregate are held together by the carbonized/graphitized binder. The present disclosure also relates to the isotropic carbonaceous composite particles obtainable by the process described herein.Type: ApplicationFiled: March 17, 2020Publication date: July 16, 2020Inventors: Michael SPAHR, Pirmin ULMANN, Simone ZÜRCHER, Sergio PACHECO BENITO, Hiroyuki TAKI
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Patent number: 10707487Abstract: The present disclosure relates to a novel surface-modified carbonaceous particulate material having a hydrophilic non-graphitic carbon coating. The material can for example be produced by CVD-coating of a carbonaceous particulate material such as graphite followed by an oxidation treatment under defined conditions. The resulting material exhibits a more hydrophilic surface compared to an unmodified CVD-coated carbon material, which is desirable in many applications, such as when used as an active material in the negative electrode of lithium ion batteries or in a polymer composite material.Type: GrantFiled: July 15, 2015Date of Patent: July 7, 2020Assignee: Imerys Graphite & Carbon Switzerland Ltd.Inventors: Michal Gulas, Pirmin Ulmann, Simone Zürcher, Michael Spahr
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Patent number: 10637058Abstract: The present disclosure relates to a novel process for preparing isotropic carbonaceous composite particles with favorable crystallographic, morphological & mechanical properties, wherein relatively fine carbonaceous primary particles are coated with a carbonaceous binder precursor material, agglomerated and finally heat-treated at temperatures of between about 1850 and 3500° C. to convert the binder precursor material to non-graphitic or graphitic carbon, thereby resulting in stable highly isotropic carbonaceous composite materials wherein the primary particles of the aggregate are held together by the carbonized/graphitized binder. The present disclosure also relates to the isotropic carbonaceous composite particles obtainable by the process described herein.Type: GrantFiled: October 21, 2016Date of Patent: April 28, 2020Assignee: ImerTech SASInventors: Michael Spahr, Pirmin Ulmann, Simone Zürcher, Sergio Pacheco Benito, Hiroyuki Taki
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Publication number: 20190237749Abstract: A silicon-carbon particulate composite suitable for use as active material in a negative electrode of a Li-ion battery, a precursor composition comprising the silicon-carbon particulate composite, a negative electrode comprising the silicon-carbon particulate composite and/or precursor composition, a Li-ion battery comprising the negative electrodes, a method of manufacturing the silicon-carbon particulate composite, precursor composition, negative electrode and Li-ion battery, the use of the silicon-carbon particulate composite in a negative electrode of a Li-ion battery to inhibit or prevent silicon pulverization during cycling, for example, during 1st cycle Li intercalation or de-intercalation and/or to maintain electrochemical capacity after 100 cycles, and a device, energy storage cell, or energy storage and conversion system comprising the silicon-carbon particulate composite and/or precursor composition.Type: ApplicationFiled: September 12, 2017Publication date: August 1, 2019Inventors: Pirmin ULMANN, Sergio PACHECO BENITO, Simone ZÜRCHER, Patrick LANZ, Michael SPAHR
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Publication number: 20190237755Abstract: A precursor composition of a negative electrode of a Li-ion battery, a negative electrode comprising or formed from the precursor composition, a Li-ion battery comprising the negative electrode, a device comprising the negative electrode, methods of making the precursor composition, negative electrode and Li-ion battery, and uses of the precursor composition or components thereof for increasing discharge capacity and/or reducing discharge capacity loss and/or improving cycling stability of a Li-ion battery comprising the negative electrode.Type: ApplicationFiled: September 12, 2017Publication date: August 1, 2019Inventors: Pirmin ULMANN, Sergio PACHECO BENITO, Simone ZÜRCHER, Marlene RODLERT-BACILIERI, Patrick LANZ, Michael SPAHR
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Publication number: 20190207206Abstract: A silicon particulate suitable for use as active material in a negative electrode of a Li-ion battery, to a precursor composition comprising the silicon particulate, a negative electrode comprising the silicon particulate and/or precursor composition, a Li-ion battery comprising the negative electrodes, the use of the silicon particulate to inhibit or prevent silicon pulverization when used as active material in a negative electrode of a Li-ion battery and/or (ii) to maintain electrochemical capacity of a negative electrode, methods for making the silicon particulate, precursor composition, negative electrode and Li-ion battery, and devices comprising the silicon particulate and/or precursor composition and/or negative electrode and/or Li-ion battery.Type: ApplicationFiled: September 12, 2017Publication date: July 4, 2019Inventors: Pirmin ULMANN, Sergio PACHECO BENITO, Simone ZÜRCHER, Patrick LANZ, Michael SPAHR
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Patent number: 10305107Abstract: Surface-modified, low surface area synthetic graphite may have a BET surface from 1.0 to 4.0 m2/g and a crystallite size Lc to crystallite size La ratio of greater than 1. Processes for modifying the surface of low surface area synthetic graphite may result in surface-modified, low surface area synthetic graphite have a BET surface from 1.0 to 4.0 m2/g and a crystallite size Lc to crystallite size La ratio of greater than 1. Such synthetic graphite may have many uses, including for example, as a negative electrode material in lithium-ion batteries.Type: GrantFiled: March 15, 2013Date of Patent: May 28, 2019Assignee: Imerys Graphite & Carbon Switzerland Ltd.Inventors: Michael E. Spahr, Pirmin A. Ulmann, Simone Zurcher, Michal Gulas, Flavio Mornaghini
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Publication number: 20170200950Abstract: The present disclosure relates to a novel surface-modified carbonaceous particulate material having a hydrophilic non-graphitic carbon coating. The material can for example be produced by CVD-coating of a carbonaceous particulate material such as graphite followed by an oxidation treatment under defined conditions. The resulting material exhibits a more hydrophilic surface compared to an unmodified CVD-coated carbon material, which is desirable in many applications, such as when used as an active material in the negative electrode of lithium ion batteries or in a polymer composite material.Type: ApplicationFiled: July 15, 2015Publication date: July 13, 2017Inventors: Michal GULAS, Pirmin ULMANN, Simone ZÜRCHER, Michael SPAHR
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Patent number: 9586899Abstract: Methods for the preparation of stereoisomerically substantially aminocyclohexyl ether compounds such as trans-(1R,2R)-aminocyclohexyl ether compounds and/or trans-(1S,2S)-aminocyclohexyl ether compounds as well as various intermediates and substrates are disclosed.Type: GrantFiled: August 4, 2015Date of Patent: March 7, 2017Assignee: Cardiome Pharma Corp.Inventors: Bertrand M. C. Plouvier, Doug Ta Hung Chou, Grace Jung, Lewis Siu Leung Choi, Tao Sheng, Anthony G. M. Barrett, Marco S. Passafaro, Martin Kurz, Daniel Moeckli, Pirmin Ulmann, Alfred Hedinger
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Publication number: 20150336887Abstract: Methods for the preparation of stereoisomerically substantially aminocyclohexyl ether compounds such as trans-(1R,2R)-aminocyclohexyl ether compounds and/or trans-(1S,2S)-aminocyclohexyl ether compounds as well as various intermediates and substrates are disclosed.Type: ApplicationFiled: August 4, 2015Publication date: November 26, 2015Inventors: Bertrand M.C. Plouvier, Doug Ta Hung Chou, Grace Jung, Lewis Siu Leung Choi, Tao Sheng, Anthony G. M. Barrett, Marco S. Passafaro, Martin Kurz, Daniel Moeckli, Pirmin Ulmann, Alfred Hedinger
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Patent number: 9115081Abstract: Methods for the preparation of stereoisomerically substantially aminocyclohexyl ether compounds such as trans-(1R,2R)-aminocyclohexyl ether compounds and/or trans-(1S,2S)-aminocyclohexyl ether compounds as well as various intermediates and substrates are disclosed.Type: GrantFiled: September 12, 2012Date of Patent: August 25, 2015Assignee: Cardiome Pharma Corp.Inventors: Bertrand M. C. Plouvier, Doug Ta Hung Chou, Grace Jung, Lewis Siu Leung Choi, Tao Sheng, Anthony G. M. Barrett, Marco S. Passafaro, Martin Kurz, Daniel Moeckli, Pirmin Ulmann, Alfred Hedinger
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Publication number: 20150079477Abstract: Surface-modified, low surface area synthetic graphite may have a BET surface from 1.0 to 4.0 m2/g and a crystallite size Lc to crystallite size La ratio of greater than 1. Processes for modifying the surface of low surface area synthetic graphite may result in surface-modified, low surface area synthetic graphite have a BET surface from 1.0 to 4.0 m2/g and a crystallite size Lc to crystallite size La ratio of greater than 1. Such synthetic graphite may have many uses, including for example, as a negative electrode material in lithium-ion batteries.Type: ApplicationFiled: March 15, 2013Publication date: March 19, 2015Inventors: Michael E. Spahr, Pirmin A. Ulmann, Simone Zürcher, Michal Gulas, Flavio Mornaghini
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Patent number: 8692002Abstract: Methods for the preparation of stereoisomerically substantially aminocyclohexyl ether compounds such as trans-(1R,2R)-aminocyclohexyl ether compounds and/or trans-(1S,2S)-aminocyclohexyl ether compounds as well as various intermediates and substrates are disclosed.Type: GrantFiled: November 18, 2005Date of Patent: April 8, 2014Assignee: Cardiome Pharma Corp.Inventors: Bertrand M. C. Plouvier, Doug Ta Hung Chou, Grace Jung, Lewis Siu Leung Choi, Tao Sheng, Anthony G. M. Barrett, Marco S. Passafaro, Martin Kurz, Daniel Moeckli, Pirmin Ulmann, Alfred Hedinger
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Publication number: 20130102791Abstract: Methods for the preparation of stereoisomerically substantially aminocyclohexyl ether compounds such as trans-(1R,2R)-aminocyclohexyl ether compounds and/or trans-(1S,2S)-aminocyclohexyl ether compounds as well as various intermediates and substrates are disclosed.Type: ApplicationFiled: September 12, 2012Publication date: April 25, 2013Applicant: CARDIOME PHARMA CORP.Inventors: Bertrand M. C. Plouvier, Doug Ta Hung Chou, Grace Jung, Lewis Siu Leung Choi, Tao Sheng, Anthony G. M. Barrett, Marco S. Passafaro, Martin Kurz, Daniel Moeckli, Pirmin Ulmann, Alfred Hedinger
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Publication number: 20100152464Abstract: Methods for the preparation of stereoisomerically substantially aminocyclohexyl ether compounds such as trans-(1R,2R)-aminocyclohexyl ether compounds and/or trans-(1S,2S)-aminocyclohexyl ether compounds as well as various intermediates and substrates are disclosed.Type: ApplicationFiled: November 18, 2005Publication date: June 17, 2010Applicant: CARDIOME PHARMA CORP.Inventors: Bertrand M. C. Plouvier, Doug Ta Hung Chou, Grace Jung, Lewis Siu Leung Choi, Tao Sheng, Anthony G. M. Barrett, Marco S. Passafaro, Martin Kurz, Daniel Moeckli, Pirmin Ulmann, Alfred Hedinger
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Publication number: 20100021894Abstract: The invention provides methods to detect cysteine which employ oligonucleotide functionalized nanoparticles.Type: ApplicationFiled: December 19, 2008Publication date: January 28, 2010Applicant: NORTHWESTERN UNIVERSITYInventors: Chad A. Mirkin, Jae-Seung Lee, Min Su Han, Pirmin A. Ulmann