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公开(公告)号：US20230411588A1
公开(公告)日：2023-12-21
申请号：US18240089
申请日：2023-08-30
发明人： Linda Zhong , Martin Zea , Eric Fodge
IPC分类号： H01M4/04
CPC分类号： H01M4/0435 , H01M4/0471 , H01M4/0416
摘要： A method of manufacturing a free-standing electrode film for an electrode of an energy storage device includes providing a powder mixture of at least one electrode active material and at least one fibrillizable binder and feeding the powder mixture to a mill line including one or more presses. At least one press may include a pair of opposing working rolls and a backing roll associated with each working roll. An apparatus for manufacturing a free-standing electrode film includes a mill line including at least one press having a pair of opposing working rolls and a backing roll associated with each working roll, a barrel of at least one of the backing rolls having a diameter that is at least 1.5 times a diameter of a barrel of the associated working roll, the barrels of the opposing working rolls each having a total indicated runout (TIR) of less than 5 μm.
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公开(公告)号：US11616218B2
公开(公告)日：2023-03-28
申请号：US16874502
申请日：2020-05-14
发明人： Linda Zhong , Kathleen Qiu , Martin Zea , Erika Shaw
摘要： A method of manufacturing a free-standing electrode film includes preparing a mixture including an electrode active material, a conductive material, and a binder, heating the mixture to 70° C. or higher, subjecting the mixture to a shear force, and, after the mixture has been subjected to the shear force, pressing the mixture into a free-standing film. The method may further include adding a solvent to the mixture. A resulting free-standing electrode film may include an amount of binder less than 4% by weight.
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公开(公告)号：US20220216453A1
公开(公告)日：2022-07-07
申请号：US17706360
申请日：2022-03-28
发明人： Kathleen Qiu , Linda Zhong , Martin Zea , Bae Kyun Kim , Alvaro Perez Rodriguez
IPC分类号： H01M4/04
摘要： A method for lithiation of an electrode includes providing an electrode to be lithiated, providing a piece of lithium metal with predetermined weight attached to a conductive material, attaching the conductive material to a current collector of the electrode to be lithiated or to a metal tab connected to or from the electrode to be lithiated, placing the electrode to be lithiated, the piece of lithium, and the conductive material in a container, and filling the container with an electrolyte containing a lithium salt.
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公开(公告)号：US20240290940A1
公开(公告)日：2024-08-29
申请号：US18653826
申请日：2024-05-02
发明人： Linda Zhong , Kathleen Qiu , Martin Zea , Erika Shaw
IPC分类号： H01M4/04
CPC分类号： H01M4/0433 , H01M4/0471
摘要： A method of manufacturing a free-standing electrode film includes preparing a mixture including an electrode active material, a conductive material, and a binder, heating the mixture to 70° C. or higher, subjecting the mixture to a shear force, and, after the mixture has been subjected to the shear force, pressing the mixture into a free-standing film. The method may further include adding a solvent to the mixture. A resulting free-standing electrode film may include an amount of binder less than 4% by weight.
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公开(公告)号：US11329264B2
公开(公告)日：2022-05-10
申请号：US17074246
申请日：2020-10-19
发明人： Kathleen Qiu , Linda Zhong , Martin Zea , Bae Kyun Kim , Alvaro Perez Rodriguez
IPC分类号： H01M4/04
摘要： A method for lithiation of an electrode includes providing an electrode to be lithiated, providing a piece of lithium metal with predetermined weight attached to a conductive material, attaching the conductive material to a current collector of the electrode to be lithiated or to a metal tab connected to or from the electrode to be lithiated, placing the electrode to be lithiated, the piece of lithium, and the conductive material in a container, and filling the container with an electrolyte containing a lithium salt.
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公开(公告)号：US20200013563A1
公开(公告)日：2020-01-09
申请号：US16573792
申请日：2019-09-17
摘要： A method for producing an electrode for an energy storage device includes: forming a current collector from a conductive material; forming a primer layer on the current collector; injecting dry powder electrode materials into the primer layer, wherein the dry powder electrode materials injected into the primer layer form an electrode film in electrical contact with the current collector.
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公开(公告)号：US20240258595A1
公开(公告)日：2024-08-01
申请号：US18103126
申请日：2023-01-30
发明人： Linda Zhong , Bibek Tiwari , Erika Shaw , Martin Zea
摘要： A method of manufacturing a free-standing electrode film for an energy storage device includes preparing a first mixture including at least one electrode active material and at least one fibrillizable binder, the first mixture having total solid contents greater than 95% by weight, fibrillizing the at least one fibrillizable binder in the first mixture by subjecting the first mixture to a shear force, pressing the first mixture into a first free-standing electrode film, shredding at least a portion of the first free-standing electrode film, preparing a second mixture including the shredded at least a portion of the first free-standing electrode film, subjecting the second mixture to a shear force, and pressing the second mixture into a second free-standing electrode film. The first mixture may include at least a portion of a previously manufactured free-standing electrode film.
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公开(公告)号：US11955621B2
公开(公告)日：2024-04-09
申请号：US17706360
申请日：2022-03-28
发明人： Kathleen Qiu , Linda Zhong , Martin Zea , Bae Kyun Kim , Alvaro Perez Rodriguez
IPC分类号： H01M4/04
CPC分类号： H01M4/0402 , H01M4/0459 , Y02E60/10
摘要： A method for lithiation of an electrode includes providing an electrode to be lithiated, providing a piece of lithium metal with predetermined weight attached to a conductive material, attaching the conductive material to a current collector of the electrode to be lithiated or to a metal tab connected to or from the electrode to be lithiated, placing the electrode to be lithiated, the piece of lithium, and the conductive material in a container, and filling the container with an electrolyte containing a lithium salt.
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公开(公告)号：US20230056854A1
公开(公告)日：2023-02-23
申请号：US17967408
申请日：2022-10-17
发明人： Linda Zhong , Erika Shaw , Bae Kyun Kim
摘要： A method of manufacturing a free-standing electrode film includes preparing a mixture including an electrode active material, a binder, and an additive solution or conductive paste, the additive solution or conductive paste being in an amount less than 5% by weight of the mixture and including a polymer additive and a liquid carrier, as well as a conductive material in the case of a conductive paste. The mixture may have total solid contents greater than 95% by weight. Preparing the mixture may include mixing the additive solution or conductive paste with the electrode active material to lubricate the electrode active material and subsequently adding and mixing in the binder. The method may further include subjecting the mixture to a shear force and, after the mixture has been subjected to the shear force, pressing the mixture into a free-standing film.
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公开(公告)号：US20230197923A1
公开(公告)日：2023-06-22
申请号：US18110627
申请日：2023-02-16
发明人： Linda Zhong , Kathleen Qiu , Martin Zea , Erika Shaw
IPC分类号： H01M4/04
CPC分类号： H01M4/0433 , H01M4/0471
摘要： A method of manufacturing a free-standing electrode film includes preparing a mixture including an electrode active material, a conductive material, and a binder, heating the mixture to 70° C. or higher, subjecting the mixture to a shear force, and, after the mixture has been subjected to the shear force, pressing the mixture into a free-standing film. The method may further include adding a solvent to the mixture. A resulting free-standing electrode film may include an amount of binder less than 4% by weight.
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