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1.发明公开公开(公告)号：US20240355997A1
公开(公告)日：2024-10-24
申请号：US18647040
申请日：2024-04-26
申请人： UT-BATTELLE, LLC
IPC分类号： H01M4/04 , H01M4/1315 , H01M4/1391 , H01M4/13915 , H01M4/1393 , H01M4/1397 , H01M4/62 , H01M4/02
CPC分类号： H01M4/0419 , H01M4/0404 , H01M4/0435 , H01M4/0471 , H01M4/1315 , H01M4/1391 , H01M4/13915 , H01M4/1393 , H01M4/1397 , H01M4/621 , H01M2004/028
摘要： A method of making an electrode includes the step of mixing active material particles, radiation curable resin precursors, and electrically conductive particles to create an electrode precursor mixture. The electrode precursor mixture is electrostatically sprayed onto a current collector to provide an electrode preform. The electrode preform is heated and calendered to melt the resin precursor such that the resin precursor surrounds the active particles and electrically conductive particles. Radiation is applied to the electrode preform sufficient to cure the radiation curable resin precursors into resin.
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公开(公告)号：US12074315B2
公开(公告)日：2024-08-27
申请号：US17057062
申请日：2019-09-26
发明人： Yuqun Zeng , Chengdu Liang , Changliang Sheng , Huafeng Huang , Qisen Huang
IPC分类号： H01M4/36 , C01G53/00 , H01M4/131 , H01M4/1315 , H01M4/505 , H01M4/525 , H01M4/62 , H01M10/0525 , H01M4/02
CPC分类号： H01M4/366 , C01G53/50 , H01M4/131 , H01M4/1315 , H01M4/505 , H01M4/525 , H01M4/62 , H01M10/0525 , H01M2004/021 , H01M2004/028 , H01M2220/20
摘要： This application discloses a positive-electrode plate, a lithium-ion battery equipped with the positive-electrode plate, a battery module, a battery pack, and an apparatus. The lithium-ion battery includes a positive-electrode plate, a negative-electrode plate, a separator, and an electrolyte. The positive-electrode plate includes a positive-electrode current collector and a positive-electrode active substance layer that is disposed on a surface of the positive-electrode current collector and that includes a positive-electrode active substance. An inorganic dielectric layer containing no binder is disposed on a surface of the positive-electrode active substance layer, and a resistance of the positive-electrode plate is not higher than 8 ohms.
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公开(公告)号：US20240266516A1
公开(公告)日：2024-08-08
申请号：US18616052
申请日：2024-03-25
发明人： Qingyan Ma , Yingjie Guan , Yuzhen Zhao , Yan Wen , Qisen Huang
CPC分类号： H01M4/366 , C01B25/45 , C01B33/32 , H01M4/1315 , H01M4/137 , H01M4/505 , H01M4/604 , H01M4/608 , C01P2002/52 , C01P2002/72 , C01P2002/85 , C01P2006/40 , H01M2004/028
摘要： A positive electrode active material, a method for preparation thereof and a positive electrode plate, a secondary battery and an electrical device containing the same are provided. The positive electrode active material has a core-shell structure, comprising a core, a first cladding layer covering the core, a second cladding layer covering the first cladding layer, wherein the core has a chemical formula of LiaAxMn1-yByP1-zCzO4-nDn, the first cladding layer comprises a first polymer containing an electron withdrawing group, the second cladding layer comprises a second polymer, and wherein the second polymer comprises one or more of plant polysaccharides, marine polysaccharides and the derivatives thereof. The positive electrode active material of the present application enables a secondary battery to have a relatively high energy density, while further having a significantly improved rate performance, cycling performance and/or high-temperature stability.
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4.发明授权公开(公告)号：US11961958B2
公开(公告)日：2024-04-16
申请号：US16440961
申请日：2019-06-13
发明人： John Collins , Bucknell C. Webb , Paul S. Andry , Teodor Krassimirov Todorov , Devendra K. Sadana
IPC分类号： H01M10/0525 , C08K3/04 , C08K5/315 , C08L67/04 , C09J179/02 , H01M4/02 , H01M4/1315 , H01M4/505 , H01M10/0565
CPC分类号： H01M10/0525 , C08K3/04 , C08K5/315 , C08L67/04 , C09J179/02 , H01M4/1315 , H01M4/505 , H01M10/0565 , C08K2201/001 , C08K2201/005 , C08L2203/20 , H01M2004/021 , H01M2300/0082
摘要： A composition includes an electrode made of Lithium Manganese Oxyfluoride (LMOF). A single layer separator adheres to a surface of the electrode, is a dielectric that is conductive for Lithium ions but not electrons, and has top and bottom sides. A solid polymer electrolyte (SPE) saturates the electrode so that the LMOF is between 55 percent and 85 percent by mass of a composition of the LMOF electrode and the SPE is between 7.5 percent and 20 percent by mass of the composition of the LMOF electrode. The SPE saturates the separator so that the SPE resides both on the separator top and bottom sides so that the SPE residing on the separator top side contacts the surface. The LMOF exhibits X-Ray Diffraction spectrum peaks between twenty-two and twenty-four 2-theta degrees, between forty-eight and fifty 2-theta degrees, between fifty-four and fifty-six 2-theta degrees, and between fifty-six and fifty-eight 2-theta degrees.
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5.发明公开公开(公告)号：US20240088439A1
公开(公告)日：2024-03-14
申请号：US18233773
申请日：2023-08-14
发明人： Jinhyeok Lim , Yunhee Kim , Wonseok Cho , Sujeong Koh , Jinah Seo , Erang Cho
IPC分类号： H01M10/0567 , H01M4/1315 , H01M10/0568 , H01M10/0569
CPC分类号： H01M10/0567 , H01M4/1315 , H01M10/0568 , H01M10/0569 , H01M10/052
摘要： An electrolyte for a lithium secondary battery and a lithium secondary battery including the electrolyte are disclosed. The electrolyte may include a lithium salt, an organic solvent, and a compound represented by Formula 1:
where, in Formula 1, A is oxygen or sulfur.-
公开(公告)号：US11884552B2
公开(公告)日：2024-01-30
申请号：US17502491
申请日：2021-10-15
发明人： Juhyeon Ahn , Dongchang Chen , Guoying Chen
IPC分类号： H01M4/04 , H01M4/1315 , H01M4/13915 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/583 , C01D15/04 , C01G33/00 , C01G45/00 , C01G23/00 , H01M10/0525 , H01M4/02
CPC分类号： C01D15/04 , C01G23/002 , C01G33/006 , C01G45/006 , H01M4/0471 , H01M4/1315 , H01M4/13915 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/583 , H01M10/0525 , C01P2002/77 , C01P2006/40 , H01M2004/028
摘要： This disclosure provides systems, methods, and apparatus related to lithium metal oxyfluorides. In one aspect, a method for manufacturing a lithium metal oxyfluoride having a general formula Li1+x(MM′)zO2-yFy, with 0.6≤z≤0.95, 0
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公开(公告)号：US11870056B2
公开(公告)日：2024-01-09
申请号：US16996515
申请日：2020-08-18
发明人： Tanghong Yi , Bin Li
IPC分类号： H01M4/13915 , C01G45/00 , H01M4/04 , H01M4/1315 , H01M4/485 , H01M10/0525 , H01M10/058 , H01M4/02
CPC分类号： H01M4/13915 , C01G45/006 , H01M4/0404 , H01M4/0471 , H01M4/1315 , H01M4/485 , H01M10/058 , H01M10/0525 , C01P2004/02 , C01P2004/32 , C01P2004/61 , C01P2004/62 , C01P2004/80 , C01P2006/40 , H01M2004/021 , H01M2004/028
摘要： A method for forming a cathode includes milling a suspension of precursors via a micromedia mill to form a mixture of primary particles in the suspension. The precursors include one or more metal compounds. The method includes spray drying the suspension after the milling to form secondary particles. The secondary particles are agglomerations of the primary particles. The method also includes annealing the secondary particles to form a disordered rocksalt powder.
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公开(公告)号：US20230369577A1
公开(公告)日：2023-11-16
申请号：US18029137
申请日：2021-12-24
发明人： Kuniko Chihara , Keiko Matsubara
IPC分类号： H01M4/38 , H01M4/525 , H01M4/505 , H01M4/36 , H01M4/1315 , H01M10/0525 , C01G53/00
CPC分类号： H01M4/388 , H01M4/525 , H01M4/505 , H01M4/366 , H01M4/1315 , H01M10/0525 , C01G53/50 , H01M2004/028
摘要： A positive electrode active material, a method of making the same, and a lithium-ion secondary battery including the same are disclosed herein. A lithium-ion secondary battery including the positive electrode active material can have excellent cycle characteristics at high temperature. In some embodiments, a positive electrode active material a lithium transition metal oxide, and an iodine-containing material at least partially covering the lithium transition metal oxide, where the iodine-containing material contains iodine having an oxidation number of +3 to +7.
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9.发明公开公开(公告)号：US20230343928A1
公开(公告)日：2023-10-26
申请号：US17909508
申请日：2021-03-05
发明人： Da Deng , Venkata Rohit Punyapu
IPC分类号： H01M4/36 , H01M10/0525 , H01M4/50 , H01M4/1315 , H01M4/13915 , H01M10/0585 , H01M4/52 , H01M4/38
CPC分类号： H01M4/364 , H01M4/1315 , H01M4/13915 , H01M4/366 , H01M4/382 , H01M4/502 , H01M4/523 , H01M10/0525 , H01M10/0585 , H01M2004/028
摘要： A lithium-ion battery may include a lithium-free cathode, a lithiated anode, and a separator/electrolyte between the lithium-free cathode and the lithiated anode. The lithium-free cathode may include FeOF and MnO2. The FeOF may be in the form of nanorods, and the MnO2 may be in the form of monolayer nanosheets. The FeOF nanorods may be sandwiched or wrapped by the monolayer MnO2 nanosheets.
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10.发明公开公开(公告)号：US20230327073A1
公开(公告)日：2023-10-12
申请号：US18203085
申请日：2023-05-30
发明人： Teruaki OCHIAI , Takahiro KAWAKAMI , Mayumi MIKAMI , Yohei MOMMA , Masahiro TAKAHASHI , Ayae TSURUTA
IPC分类号： H01M4/131 , H01M4/1315 , H01M4/1391 , H01M4/62 , H01M4/13915 , H01M4/134 , H01M4/36 , H01M4/525 , H01M4/86
CPC分类号： H01M4/131 , H01M4/1315 , H01M4/1391 , H01M4/625 , H01M4/13915 , H01M4/134 , H01M4/366 , H01M4/525 , H01M4/8657 , H01M2004/021
摘要： A positive electrode active material which can improve cycle characteristics of a secondary battery is provided. Two kinds of regions are provided in a superficial portion of a positive electrode active material such as lithium cobaltate which has a layered rock-salt crystal structure. The inner region is a non-stoichiometric compound containing a transition metal such as titanium, and the outer region is a compound of representative elements such as magnesium oxide. The two kinds of regions each have a rock-salt crystal structure. The inner layered rock-salt crystal structure and the two kinds of regions in the superficial portion are topotaxy; thus, a change of the crystal structure of the positive electrode active material generated by charging and discharging can be effectively suppressed. In addition, since the outer coating layer in contact with an electrolyte solution is the compound of representative elements which is chemically stable, the secondary battery having excellent cycle characteristics can be obtained.
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