Patents by Inventor Calin Iulius Wurm
Calin Iulius Wurm 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: 11581526Abstract: The invention relates to a method for producing an electrochemical cell comprising at least one porous electrode (2?), the method comprising at least the following method steps: (a) providing an electrode composition in the form of a homogeneous mixture comprising (i) at least one particulate active material (3); (ii) at least one particulate binder (5); (iii) at least one particulate pore-forming agent (4); and (iv) optionally at least one conducting additive (6); (b) forming a mouldable mass from the electrode composition; (c) applying the electrode composition to at least one surface of a substrate (1) to obtain a compact electrode (2); (d) producing an electrochemical cell comprising at least one compact electrode (2) which comprises the electrode composition according to method step (a); and (e) heating the at least one compact electrode (2) to liquefy the at least one particulate pore-forming agent (4); and/or (f) bringing the compact electrode (2) into contact with at least one liquid electrolyte compoType: GrantFiled: May 15, 2019Date of Patent: February 14, 2023Assignee: Robert Bosch GmbHInventors: Calin Iulius Wurm, Harald Bauer, Leonore Glanz
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Patent number: 11431060Abstract: The present invention relates to a separator arrangement (20) for an electrochemical battery cell (10) comprising an ionically conductive and electrically insulating separator layer (22), characterized in that the separator arrangement (20) further comprises a reduction layer (24) comprising a reductant, wherein the reduction layer (24) has a specific surface area which is in a range of not less than 10 m2/g, preferably of not less than 100 m2/g, for example of not less than 1000 m2/g, and wherein the reduction layer (24) is porous and has an open porosity in a range from not less than 10% to not more than 90%, preferably from not less than 30% to not more than 70%.Type: GrantFiled: November 6, 2017Date of Patent: August 30, 2022Assignees: Robert Bosch GmbH, GS Yuasa International Ltd.Inventors: Matthias Schroeder, Calin Iulius Wurm, Martin Manuel Hiller, Franz Fuchs
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Patent number: 11183675Abstract: The invention relates to a method for producing an electrode (E) for an electrochemical cell, in particular for a lithium cell. In order to produce a homogeneous mixture allowing the time-saving, cost-effective production, for example by dry coating, of an electrode (E) with improved properties and/or with a layer thickness significantly greater than 100 ?m, for example for vehicle batteries, in particular for electric and/or hybrid vehicles, in said method at least one binder (B) and at least one particulate fibrillation auxiliary agent (F) are mixed in a mixing process with a high shear load, the at least one binder (B) being fibrillated (fB), and at least one electrode component (E1) is then added to the at least one fibrillated binder (B) in a mixing process with a low shear load. The invention also relates to an electrode (E) produced in this manner and to an electrochemical cell equipped with an electrode (E) of this type.Type: GrantFiled: July 30, 2018Date of Patent: November 23, 2021Assignees: Robert Bosch GmbH, GS Yuasa International Ltd.Inventors: Bernd Reinsch, Leonore Glanz, Calin Iulius Wurm, Harald Bauer, Wolfgang Weydanz
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Publication number: 20210249647Abstract: The invention relates to a method for producing an electrochemical cell comprising at least one porous electrode (2?), the method comprising at least the following method steps: (a) providing an electrode composition in the form of a homogeneous mixture comprising (i) at least one particulate active material (3); (ii) at least one particulate binder (5); (iii) at least one particulate pore-forming agent (4); and (iv) optionally at least one conducting additive (6); (b) forming a mouldable mass from the electrode composition; (c) applying the electrode composition to at least one surface of a substrate (1) to obtain a compact electrode (2); (d) producing an electrochemical cell comprising at least one compact electrode (2) which comprises the electrode composition according to method step (a); and (e) heating the at least one compact electrode (2) to liquefy the at least one particulate pore-forming agent (4); and/or (f) bringing the compact electrode (2) into contact with at least one liquid electrolyte compoType: ApplicationFiled: May 15, 2019Publication date: August 12, 2021Inventors: Calin Iulius Wurm, Harald Bauer, Leonore Glanz
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Publication number: 20200220151Abstract: The invention relates to a method for producing an electrode (E) for an electrochemical cell, in particular for a lithium cell. In order to produce a homogeneous mixture allowing the time-saving, cost-effective production, for example by dry coating, of an electrode (E) with improved properties and/or with a layer thickness significantly greater than 100 ?m, for example for vehicle batteries, in particular for electric and/or hybrid vehicles, in said method at least one binder (B) and at least one particulate fibrillation auxiliary agent (F) are mixed in a mixing process with a high shear load, the at least one binder (B) being fibrillated (fB), and at least one electrode component (E1) is then added to the at least one fibrillated binder (B) in a mixing process with a low shear load. The invention also relates to an electrode (E) produced in this manner and to an electrochemical cell equipped with an electrode (E) of this type.Type: ApplicationFiled: July 30, 2018Publication date: July 9, 2020Applicants: Robert Bosch GmbH, GS Yuasa International Ltd.Inventors: Bernd REINSCH, Leonore GLANZ, Calin Iulius WURM, Harald BAUER, Wolfgang WEYDANZ
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Patent number: 10665860Abstract: An anode for a galvanic cell is constructed from an anode material containing a main component, which releases lithium ions during a discharge process of the galvanic cell, and at least one additive. The at least one additive has an electrochemical potential which is higher with respect to elemental lithium than an electrochemical potential of the main component with respect to elemental lithium. The at least one additive has a charging capacity and a discharging capacity, and the charging capacity does not deviate from the discharging capacity by more than 10%.Type: GrantFiled: August 3, 2015Date of Patent: May 26, 2020Assignee: Robert Bosch GmbHInventors: Thomas Wöhrle, Calin Iulius Wurm, Vikram Anil Godbole
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Patent number: 10483507Abstract: A cell module for lithium-ion batteries includes at least two lithium-ion cells, in particular lithium-ion battery cells, a cell module housing that has at least one lateral wall, and at least one electrical insulation between the cells. The electrical insulation is configured in one piece with the cell module housing.Type: GrantFiled: April 9, 2015Date of Patent: November 19, 2019Assignee: Robert Bosch GmbHInventors: Oliver Gerundt, Ionut Marian Lica, Thomas Klemen, Michael Raedler, Rene Hornung, Markus Feigl, Harald Drings, Seyed Mohammad Seyed Abbassi, Anselm Berg, Rene Deponte, Calin Iulius Wurm
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Patent number: 10454105Abstract: An electrode for an energy accumulator comprises a substrate, an active anode layer having an active anode material, the active anode material being at least partially a lithium, a lithium alloy and/or a lithium intercalation material, at least one lithium-ion-conducting layer having a material composition which gradually changes over a layer thickness and has at least one lithium-ion-conducting component. A method for forming an electrode for an energy accumulator, and a lithium-ion battery comprising an electrode are also disclosed.Type: GrantFiled: August 18, 2015Date of Patent: October 22, 2019Assignee: Robert Bosch GmbHInventors: Martin Tenzer, Thomas Wöhrle, Calin Iulius Wurm
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Publication number: 20190319246Abstract: The present invention relates to a separator arrangement (20) for an electrochemical battery cell (10) comprising an ionically conductive and electrically insulating separator layer (22), characterized in that the separator arrangement (20) further comprises a reduction layer (24) comprising a reductant, wherein the reduction layer (24) has a specific surface area which is in a range of not less than 10 m2/g, preferably of not less than 100 m2/g, for example of not less than 1000 m2/g, and wherein the reduction layer (24) is porous and has an open porosity in a range from not less than 10% to not more than 90%, preferably from not less than 30% to not more than 70%.Type: ApplicationFiled: November 6, 2017Publication date: October 17, 2019Inventors: Matthias Schroeder, Calin Iulius Wurm, Martin Manuel Hiller, Franz Fuchs
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Publication number: 20190280275Abstract: The invention concerns an electrode assembly (10) for a battery cell (2), comprising an anode (11) and a cathode (12) that are separated from one another by means of a separator (18), an electrically conductive layer (32) being arranged on the separator (18) and the electrically conductive layer (32) being covered at least partially with a protective film (34). The protective film (34) is a dense passivation layer or a polymer coating. The invention also concerns a battery cell (2), comprising at least one electrode assembly (10).Type: ApplicationFiled: November 16, 2017Publication date: September 12, 2019Inventors: Calin Iulius Wurm, Nicola Mingirulli, Martin Manuel Hiller, Franz Fuchs
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Patent number: 10312562Abstract: A metal-oxygen battery system, in particular a lithium-oxygen battery system, includes at least one battery cell, in particular a lithium-oxygen cell, including an oxygen cathode, a metal anode, and a metal ion-conducting separator situated between the cathode and the anode. To increase the current carrying capacity, the battery system also includes a turbomachine system which is connected to the oxygen cathode in a gas-conducting manner and which may be switched over between a suction function and a blowing function, and/or an exhaust gas supply line for supplying a gas low in oxygen to the oxygen cathode. Also described is a corresponding operating method.Type: GrantFiled: November 18, 2015Date of Patent: June 4, 2019Assignee: ROBERT BOSCH GMBHInventors: Thomas Woehrle, Felix Eberle, Bernd Schumann, Calin Iulius Wurm, Vikram Anil Godbole
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Patent number: 10199622Abstract: A battery cell (2) comprising at least one electrode unit (10) having an anode (82), a cathode (84) and a separator (83) which is arranged between the anode (82) and the cathode (84). In this case, the separator (83) has an electrically conductive core layer (93) and at least one ionically permeable edge layer (91, 92). The invention also relates to a method for controlling ion flow within the battery cell (2), wherein an electrical connection is established between the electrically conductive core layer (93) of the separator (83) and a current collector (81) of the anode (82) or a current collector (85) of the cathode (84).Type: GrantFiled: May 16, 2016Date of Patent: February 5, 2019Assignee: Robert Bosch GmbHInventors: Georg Sebastian, Calin Iulius Wurm
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Patent number: 10109890Abstract: A lithium cell includes a negative electrode and a positive electrode. In order to increase the safety and service life of the cell, the cell also includes at least one porous protective layer arranged between the negative electrode and the positive electrode. The protective layer includes at least one alkaline-earth metal carboxylate.Type: GrantFiled: August 4, 2014Date of Patent: October 23, 2018Assignee: Robert Bosch GmbHInventors: Thomas Wöhrle, Felix Eberle, Calin Iulius Wurm, Hideki Ogihara
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Publication number: 20170271669Abstract: An anode for a galvanic cell is constructed from an anode material containing a main component, which releases lithium ions during a discharge process of the galvanic cell, and at least one additive. The at least one additive has an electrochemical potential which is higher with respect to elemental lithium than an electrochemical potential of the main component with respect to elemental lithium. The at least one additive has a charging capacity and a discharging capacity, and the charging capacity does not deviate from the discharging capacity by more than 10%.Type: ApplicationFiled: August 3, 2015Publication date: September 21, 2017Inventors: Thomas Wöhrle, Calin Iulius Wurm, Vikram Anil Godbole
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Publication number: 20170077468Abstract: A cell module for lithium-ion batteries includes at least two lithium-ion cells, in particular lithium-ion battery cells, a cell module housing that has at least one lateral wall, and at least one electrical insulation between the cells. The electrical insulation is configured in one piece with the cell module housing.Type: ApplicationFiled: April 9, 2015Publication date: March 16, 2017Inventors: Oliver Gerundt, Ionut Marian Lica, Thomas Klemen, Michael Raedler, Rene Hornung, Markus Feigl, Harald Drings, Seyed Mohammad Seyed Abbassi, Anselm Berg, Rene Deponte, Calin Iulius Wurm
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Publication number: 20160351953Abstract: A solid electrolyte separator (10) for a lithium cell (100), especially for a lithium conversion cell, for example for a lithium-oxygen cell or for a lithium-sulfur cell. In order to simplify the assembly of the cell or battery and to extend its lifetime, the solid electrolyte separator (10) comprises a solid electrolyte base layer (11), which (11) is coated firstly with a first solid electrolyte coating (12) and secondly with a second solid electrolyte coating (13).Type: ApplicationFiled: May 31, 2016Publication date: December 1, 2016Inventors: Thomas Wöhrle, Calin Iulius Wurm, Vikram Anil Godbole
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Publication number: 20160336566Abstract: A battery cell (2) comprising at least one electrode unit (10) having an anode (82), a cathode (84) and a separator (83) which is arranged between the anode (82) and the cathode (84). In this case, the separator (83) has an electrically conductive core layer (93) and at least one ionically permeable edge layer (91, 92). The invention also relates to a method for controlling ion flow within the battery cell (2), wherein an electrical connection is established between the electrically conductive core layer (93) of the separator (83) and a current collector (81) of the anode (82) or a current collector (85) of the cathode (84).Type: ApplicationFiled: May 16, 2016Publication date: November 17, 2016Inventors: Georg Sebastian, Calin Iulius Wurm
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Publication number: 20160197380Abstract: A lithium cell includes a negative electrode and a positive electrode. In order to increase the safety and service life of the cell, the cell also includes at least one porous protective layer arranged between the negative electrode and the positive electrode. The protective layer includes at least one alkaline-earth metal carboxylate.Type: ApplicationFiled: August 4, 2014Publication date: July 7, 2016Inventors: Thomas Wöhrle, Felix Eberle, Calin Iulius Wurm, Hideki Ogihara
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Publication number: 20160149278Abstract: A metal-oxygen battery system, in particular a lithium-oxygen battery system, includes at least one battery cell, in particular a lithium-oxygen cell, including an oxygen cathode, a metal anode, and a metal ion-conducting separator situated between the cathode and the anode. To increase the current carrying capacity, the battery system also includes a turbomachine system which is connected to the oxygen cathode in a gas-conducting manner and which may be switched over between a suction function and a blowing function, and/or an exhaust gas supply line for supplying a gas low in oxygen to the oxygen cathode. Also described is a corresponding operating method.Type: ApplicationFiled: November 18, 2015Publication date: May 26, 2016Inventors: Thomas WOEHRLE, Felix EBERLE, Bernd SCHUMANN, Calin Iulius WURM, Vikram Anil GODBOLE
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Publication number: 20160056456Abstract: An electrode for an energy accumulator comprises a substrate, an active anode layer having an active anode material, the active anode material being at least partially a lithium, a lithium alloy and/or a lithium intercalation material, at least one lithium-ion-conducting layer having a material composition which gradually changes over a layer thickness and has at least one lithium-ion-conducting component. A method for forming an electrode for an energy accumulator, and a lithium-ion battery comprising an electrode are also disclosed.Type: ApplicationFiled: August 18, 2015Publication date: February 25, 2016Inventors: Martin Tenzer, Thomas Wöhrle, Calin Iulius Wurm