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51. 发明申请

US20210257673A1 NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR PRODUCING A NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 有权
公开(公告)号：US20210257673A1
公开(公告)日：2021-08-19
申请号：US17240208
申请日：2021-04-26
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Kunihiko HAYASHI
IPC分类号： H01M10/0587 , H01M10/0525 , H01M10/04 , H01M50/40 , H01M50/411 , H01M50/449
摘要： The present invention provides a technology that allows supplying stably a nonaqueous electrolyte secondary battery having a high capacity retention rate and being excellent in resistance to deterioration. The nonaqueous electrolyte secondary battery disclosed herein is provided with a wound electrode body resulting from winding a stack 10 having a stacking of a positive electrode 50 and a negative electrode 60 across separators 70. The positive electrode 50 has a foil-shaped positive electrode collector 52 and a positive electrode mix layer 54. Each separator 70 has a resin substrate layer 72 and a heat resistance layer 74. In the nonaqueous electrolyte secondary battery disclosed herein, the peel strength of a boundary between the resin substrate layer and the heat resistance layer is 16 N/m or more and 155 N/m or less, and the density of the positive electrode mix layer is 2.3 g/cc or more and 2.6 g/cc or less. In this the nonaqueous electrolyte secondary battery, sufficient flexibility of the stack 10 as a whole can be secured even when using high-peel strength separators 70 in order to increase resistance to deterioration. Drops in production efficiency can be suitably suppressed as a result.

52. 发明授权

US11094999B2 Hybrid separators and the manufacture thereof 有权
公开(公告)号：US11094999B2
公开(公告)日：2021-08-17
申请号：US16429944
申请日：2019-06-03
申请人： Cornell University
发明人： Yong Lak Joo , Joseph M. Carlin , Soshana Smith
IPC分类号： H01M50/446 , C25D1/08 , H01M10/0525 , H01M10/42 , H01M50/44 , H01M50/403 , H01M50/411 , H01M50/431 , H01M50/449
摘要： Provided herein are a variety of porous separator materials, particularly those prepared by gas-assisted electrospray and electrospinning processes.

53. 发明授权

US11094995B2 Membranes, separators, batteries, and methods 有权
公开(公告)号：US11094995B2
公开(公告)日：2021-08-17
申请号：US15216861
申请日：2016-07-22
申请人： Celgard, LLC
发明人： Lie Shi , C. Glen Wensley , Zhengming Zhang , Katharine Chemelewski , Junqing Ma , Ronnie E. Smith , Kwantai Cho , Weifeng Fang , Changqing Wang Adams , Ian McCallum , Jun Nada , Shante P. Williams , Jacob S. Mangum
IPC分类号： H01M50/431 , H01M50/403 , H01M50/449 , H01M10/052 , H01M50/44 , H01M50/411 , B05D1/00 , C23C14/08 , C23C14/20 , C23C14/24 , H01G11/52 , H01M6/14 , H01M10/0525 , H01G11/84
摘要： In accordance with at least selected embodiments, novel or improved porous membranes or substrates, separator membranes, separators, composites, electrochemical devices, batteries, methods of making such membranes or substrates, separators, and/or batteries, and/or methods of using such membranes or substrates, separators and/or batteries are disclosed. In accordance with at least certain embodiments, novel or improved microporous membranes, battery separator membranes, separators, energy storage devices, batteries including such separators, methods of making such membranes, separators, and/or batteries, and/or methods of using such membranes, separators and/or batteries are disclosed. In accordance with at least certain selected embodiments, a separator for a battery which has an oxidation protective and binder-free deposition layer which is stable up to 5.2 volts or more, for example, up to 7 volts, in a battery is disclosed. The deposition layer is preferably a thin, very thin or ultra-thin deposition on a polymeric microporous membrane applied via a binder-free and solvent-free deposition method. By employing such an ultra-thin deposition layer, the energy density of a battery may be increased. In accordance with at least particular embodiments, the battery separator membrane described herein is directed to a multi-layer or composite microporous membrane battery separator which may have excellent oxidation resistance and may be stable in a high voltage battery system up to 5.2 volts or more. In accordance with at least other certain selected embodiments, the present invention is directed to a separator for a battery which has a conductive deposition layer which is stable up to at least 5.2 volts or higher in a battery.

54. 发明申请

US20210242509A1 STRIPLINE DETECTOR FOR IN SITU BATTERY AND FUEL CELL NMR 有权
公开(公告)号：US20210242509A1
公开(公告)日：2021-08-05
申请号：US17145482
申请日：2021-01-11
申请人： Georgetown University
发明人： YuYe J. TONG , Eric G. SORTE
IPC分类号： H01M10/48 , H01M10/0525 , H01M4/58 , H01M4/587 , H01M4/66 , G01N24/08 , G01R33/46 , G01R33/36 , H01M8/04298 , G01R33/345 , H01M50/411
摘要： Provided are batteries and fuel cells incorporating a stripline detector for use in nuclear magnetic resonance (NMR). The stripline batteries and fuel cells can be used for in situ NMR measurement of battery or fuel cell chemistry. Also provided are methods for measuring in situ battery and fuel cell NMR using the stripline batteries and fuel cells of the invention.

55. 发明授权

US11081761B2 Flexible electrode-separator elements and processes for their preparation 有权
公开(公告)号：US11081761B2
公开(公告)日：2021-08-03
申请号：US16318878
申请日：2017-07-21
申请人： HYDRO-QUÉBEC , Transfert Plus, S.E.C.
发明人： Nicolas Delaporte , Diby Benjamin Ossonon , Karim Zaghib , Daniel Belanger
IPC分类号： H01M50/46 , H01M4/04 , H01M4/62 , H01M10/0525 , H01M4/13 , H01M4/1391 , H01M4/139 , H01M4/1397 , H01M50/403 , H01M50/411 , H01M10/052 , H01M4/131 , H01M4/136
摘要： This application describes a process for the preparation of flexible electrode-separator elements or assemblies, which includes the application of an electrode material on the separator. The electrode material comprises graphene, for instance produced by graphite exfoliation. The electrode-separator elements obtained by the process as well as their use in electrochemical cells are also described.

56. 发明申请

US20210234236A1 MULTILAYER MICROPOROUS SEPARATORS FOR LITHIUM ION SECONDARY BATTERIES AND RELATED METHODS 有权
公开(公告)号：US20210234236A1
公开(公告)日：2021-07-29
申请号：US17189550
申请日：2021-03-02
申请人： CELGARD, LLC
发明人： Xiaomin Zhang , Lie Shi , William John Paulus
IPC分类号： H01M50/449 , H01M50/403 , H01M50/411
摘要： An improved multilayer laminated microporous battery separator for a lithium ion secondary battery, and/or a method of making or using this separator is provided. The preferred inventive dry process separator is a tri-layer laminated Polypropylene/Polyethylene/Polypropylene microporous membrane with a thickness range of 12 μm to 30 μm having improved puncture strength and low electrical resistance for improved cycling and charge performance in a lithium ion battery. In addition, the preferred inventive separator's or membrane's low Electrical Resistance and high porosity provides superior charge rate performance in a lithium battery for high power applications.

57. 发明授权

US11069920B2 Solid state battery design with mixed ionic and electronic conductor 有权
公开(公告)号：US11069920B2
公开(公告)日：2021-07-20
申请号：US16284297
申请日：2019-02-25
申请人： FORD GLOBAL TECHNOLOGIES, LLC
发明人： Venkataramani Anandan , Andrew Robert Drews
IPC分类号： H01M10/0562 , H01M10/052 , H01M10/0565 , H01M10/0585 , H01M2/14 , H01M2/16 , H01M4/134 , H01M4/38 , H01M50/403 , H01M50/411 , H01M50/431 , H01M50/449 , H01M4/02
摘要： A solid-state battery comprises an anode in electrical contact with an anode current collector, including a first ionically conductive solid electrolyte material having a susceptibility to reduction in a presence of lithium metal such that, upon contact with lithium, the ionically conductive material partially reduces to a mixed ionic and electronic conductor including a partially reduced species, a cathode, and a separator positioned between and in ionic contact with the anode and cathode. The separator is formed of a second ionically conductive solid electrolyte material which is in contact with the first ionically conductive material but not susceptible to reduction in a presence of lithium metal and not soluble for the partially reduced species such that the separator has a susceptibility for migration of lithium ions from the mixed ionic and electronic conductor and impedes propagation or exchange of the partially reduced species from the mixed ionic and electronic conductor.

58. 发明授权

US11066490B2 Cyanoethyl group-containing polymer and preparation method thereof 有权
公开(公告)号：US11066490B2
公开(公告)日：2021-07-20
申请号：US16082410
申请日：2017-11-30
申请人： LG Chem, Ltd.
发明人： Hye Soo Han , Min Ah Kang , Kyung An Kwon , Dong Jo Ryu , Seon Hee Han , Cheol Hoon Choi
IPC分类号： C08F8/30 , C08F216/14 , C08F216/06 , C08K3/22 , C08J7/04 , H01M50/403 , H01M50/411 , H01M50/431 , H01M50/449 , C08J7/043 , C08F16/06 , H01M10/42
摘要： A cyanoethyl group-containing polymer and a preparation method thereof are provided. The cyanoethyl group-containing polymer is characterized by having very low contents of functional groups other than cyanoethyl groups.

59. 发明授权

US11063292B2 Composite electrolyte structure and lithium metal battery including the same 有权
公开(公告)号：US11063292B2
公开(公告)日：2021-07-13
申请号：US15840168
申请日：2017-12-13
申请人： Samsung Electronics Co., Ltd. , Samsung SDI Co., Ltd.
发明人： Yonggun Lee , Saebom Ryu , Taehwan Yu , Wonseok Chang
IPC分类号： H01M10/0562 , H01M10/052 , H01M4/62 , H01M4/04 , H01M10/42 , H01M50/46 , H01M50/411 , H01M50/431 , H01M50/446 , H01M50/449
摘要： A composite electrolyte structure includes: a protective layer having a Young's modulus of about 106 pascals or greater and including a first particle, the first particle including an organic particle, an inorganic particle, an organic-inorganic particle, or a combination thereof, wherein the particle in the protective layer has a particle size of greater than 1 micrometer to about 100 micrometers, and a solid electrolyte layer including a second particle including an organic particle, an inorganic particle, an organic-inorganic particle, or a combination thereof, wherein the second particle has a particle size of greater than 1 micrometer to about 100 micrometers, wherein the first particle and the second particle are the same or different, and wherein the protective layer is on the solid electrolyte layer.

60. 发明申请

US20210194091A1 SEPARATORS, BATTERIES, SYSTEMS, VEHICLES, AND RELATED METHODS 有权
公开(公告)号：US20210194091A1
公开(公告)日：2021-06-24
申请号：US17195645
申请日：2021-03-09
申请人： Celgard, LLC
发明人： Xiaomin Zhang , Gerald P. Rumierz , Karl F. Humiston , Charles E. Haire , Tyrone S. Fields , Michael A. Braswell , Ronald A. Proctor , Ronnie E. Smith
IPC分类号： H01M50/411 , B29C48/00 , B29C48/21 , B29C48/92 , B29C48/08 , B29C48/10 , B29C48/18 , B29C55/00 , H01M50/449 , H01M50/463 , B29C65/00
摘要： Improved battery separators, base films or membranes, batteries, cells, devices, systems, vehicles, and/or methods of making and/or using such separators, films or membranes, batteries, cells, devices, systems, vehicles, and/or methods of enhancing battery or cell charge rates, charge capacity, and/or discharge rates, and/or methods of improving batteries, systems including such batteries, vehicles including such batteries and/or systems, and/or the like; biaxially oriented porous membranes, composites including biaxially oriented porous membranes, biaxially oriented microporous membranes, biaxially oriented macroporous membranes, battery separators with improved charge capacities and the related methods and methods of manufacture, methods of use, and the like; flat sheet membranes, liquid retention media; dry process separators; biaxially stretched separators; dry process biaxially stretched separators having a thickness range between about 5 μm and 50 μm, preferably between about 10 μm and 25 μm, having improved strength, high porosity, and unexpectedly and/or surprisingly high charge capacity, such as, for example, high 10 C rate charge capacity; separators or membranes with high charge capacity and high porosity, excellent charge rate and/or charge capacity performance in a rechargeable and/or secondary lithium battery, such as a lithium ion battery, for high power and/or high energy applications, cells, devices, systems, and/or vehicles, and/or the like; single or multiple ply or layer separators, monolayer separators, trilayer separators, composite separators, laminated separators, co-extruded separators, coated separators, 1 C or higher separators, at least 1 C separators, batteries, cells, systems, devices, vehicles, and/or the like; improved microporous battery separators for secondary lithium batteries, improved microporous battery separators with enhanced or high charge (C) rates, discharge (C) rates, and/or enhanced or high charge capacities in or for secondary lithium batteries, and/or related methods of manufacture, use, and/or the like, and/or combinations thereof are disclosed or provided.

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