公开(公告)号：US11888102B2

公开(公告)日：2024-01-30

申请号：US17014314

申请日：2020-09-08

申请人： SK ON CO., LTD.

发明人： Sang Bok Kim ,  Ji Hoon Choi ,  Jik Soo Kim ,  Mi Jung Noh ,  Dong Il Jang ,  Dong Wook Ha

IPC分类号： H01M4/36 ,  H01M4/131 ,  H01M4/1391 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/505 ,  H01M4/04

CPC分类号： H01M4/131 ,  H01M4/0471 ,  H01M4/1391 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525

摘要： In a method of manufacturing a cathode active material for a lithium secondary battery, a preliminary lithium metal oxide particle is prepared. The preliminary lithium metal oxide particle is cleaned using a boron compound cleaning solution. A cathode active material for a lithium secondary particle includes a lithium metal oxide particle where a ratio of a B+ peak intensity relative to a sum of peak intensities of Li+, B+ and LiB+ fragments by a TOF-SIMS analysis is in a range from 0.03% to 1.5%.

公开(公告)号：US20240030438A1

公开(公告)日：2024-01-25

申请号：US18039809

申请日：2021-11-25

申请人： Panasonic Energy Co., Ltd

发明人： Masahiro Kinoshita ,  Shouichiro Sawa ,  Koki Morita ,  Tomoki Ikeda

IPC分类号： H01M4/587 ,  H01M4/131 ,  H01M4/525

CPC分类号： H01M4/587 ,  H01M4/131 ,  H01M4/525 ,  H01M2004/028

摘要： A non-aqueous electrolyte secondary battery positive electrode that is characterized by comprising a positive electrode collector and a positive electrode mixture layer that is provided on the positive electrode collector and includes a positive electrode active material and a conductive material that includes carbon nanotubes. The non-aqueous electrolyte secondary battery positive electrode is also characterized in that, when the positive electrode mixture layer is bisected in the thickness direction, the mass ratio of carbon nanotubes to positive electrode active material in an upper-half region that is on a top surface side is smaller than the mass ratio of carbon nanotubes to positive electrode active material in a lower-half region that is on the positive electrode collector side.

公开(公告)号：US20240030414A1

公开(公告)日：2024-01-25

申请号：US18265560

申请日：2021-12-07

申请人： LG Energy Solution, Ltd.

发明人： Seulki Chae ,  Hakyoon Kim ,  Sora Baek ,  Hyuck Hur ,  Dong Hwi Kim ,  Hyeongil Kim ,  Wang Mo Jung ,  Donghun Lee

IPC分类号： H01M4/36 ,  H01M4/48 ,  H01M10/052 ,  H01M4/131 ,  H01M4/525 ,  H01M4/505 ,  C01G53/00

CPC分类号： H01M4/366 ,  H01M4/48 ,  H01M10/052 ,  H01M4/131 ,  H01M4/525 ,  H01M4/505 ,  C01G53/006 ,  H01M2004/028

摘要： Disclosed is a positive electrode material for a lithium secondary battery capable of improving the problems of resistance and lifetime deterioration of the battery by forming a thin and uniform metal oxide on the surface of the lithium nickel cobalt manganese-based positive electrode active material, and a method for preparing the same and a lithium secondary battery comprising the same. The method of preparing the positive electrode material for the lithium secondary battery comprises a method of coating a metal oxide on the surface of a lithium nickel cobalt manganese-based positive electrode active material through a chemical vapor deposition. The method includes placing the lithium nickel cobalt manganese-based positive electrode active material in a deposition apparatus and supplying a metal oxide precursor and a carrier gas, and the lithium nickel cobalt manganese-based positive electrode active material is stirred during deposition.

公开(公告)号：US20240030402A1

公开(公告)日：2024-01-25

申请号：US18357033

申请日：2023-07-21

申请人： Samsung SDI Co., Ltd.

发明人： Kanghee Lee ,  Woojin Bae ,  Shinya Wakita ,  Junyong Lee ,  Jongseok Moon ,  Jongseok Park ,  Jinhwan Park ,  Hyunsik Woo ,  Heemin Kim

IPC分类号： H01M4/136 ,  H01M10/0525 ,  H01M4/40 ,  H01M4/62 ,  H01M4/1397 ,  H01M4/131

CPC分类号： H01M4/136 ,  H01M10/0525 ,  H01M4/405 ,  H01M4/625 ,  H01M4/1397 ,  H01M4/131 ,  H01M2004/027

摘要： An anode for lithium metal batteries, a lithium metal battery including the anode, and a method of manufacturing the anode for lithium metal batteries are provided. The anode for lithium metal batteries includes: an anode current collector; and a protective layer on the anode current collector, where an anode active material layer is disposed or absent between the anode current collector and the protective layer, the protective layer may include sulfurized polyacrylonitrile, and the anode active material layer may include a lithium metal and/or a lithium alloy.

公开(公告)号：US20240021830A1

公开(公告)日：2024-01-18

申请号：US18033555

申请日：2022-03-10

申请人： LG Energy Solution, Ltd.

发明人： Il-Hong KIM ,  O-Jong KWON ,  Hee-Chang YOUN ,  Yo-Han KWON ,  Min-Chul JANG

IPC分类号： H01M4/62 ,  H01M4/04 ,  H01M10/052 ,  H01M4/131 ,  H01M4/58

CPC分类号： H01M4/623 ,  H01M4/0404 ,  H01M4/0471 ,  H01M10/052 ,  H01M4/131 ,  H01M4/5825 ,  H01M2004/021

摘要： An electrode including a current collector; and an electrode active material layer disposed on at least one surface of the current collector is disclosed. The electrode active material layer includes a lower layer region facing the current collector, and an upper layer region facing the lower layer region and extended to the surface of the electrode active material layer. The lower layer region includes a first active material and a first non-rubbery binder and is free from a rubbery binder. The upper layer region includes a second active material, a second non-rubbery binder, and a rubbery binder. The rubbery binder is a hydrogenated nitrile butadiene rubber (H-NBR). Each of the first non-rubbery binder and the second non-rubbery binder includes a polyvinylidene fluoride (PVDF)-based polymer, and the weight ratio of the second non-rubbery binder to the rubbery binder in the upper layer region is 1:0.03-1:0.07.

公开(公告)号：US11876216B2

公开(公告)日：2024-01-16

申请号：US17744202

申请日：2022-05-13

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Ryo Sugawara ,  Takashi Kouzaki

IPC分类号： H01M4/36 ,  H01M4/04 ,  H01M4/131 ,  H01M4/139 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0562 ,  H01M4/1391 ,  H01M4/13 ,  H01M4/525 ,  H01M10/052

CPC分类号： H01M4/364 ,  H01M4/0404 ,  H01M4/0409 ,  H01M4/13 ,  H01M4/131 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/366 ,  H01M4/525 ,  H01M4/621 ,  H01M4/622 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/052 ,  H01M2300/0068

摘要： An electrode mixture includes a sulfide solid electrolyte and a carbon-containing material having contact with the sulfide solid electrolyte. An intensity ratio C/S determined from a spectrum obtained by analyzing the electrode mixture by Auger electron spectroscopy satisfies 0.2≤C/S≤1, where C is an intensity of a peak in the spectrum which corresponds to carbon included in the carbon-containing material, and S is an intensity of a peak in the spectrum which corresponds to sulfur included in the sulfide solid electrolyte.

公开(公告)号：US11876178B2

公开(公告)日：2024-01-16

申请号：US16641895

申请日：2018-08-24

申请人： University of Maryland, College Park ,  The United States of America as Represented by the Secretary of the Army

发明人： Kang Xu ,  Chunsheng Wang ,  Chongyin Yang

IPC分类号： H01M10/0567 ,  H01M4/131 ,  H01M4/134 ,  H01M4/38 ,  H01M4/505 ,  H01M4/583 ,  H01M4/66 ,  H01M10/0525 ,  H01M4/02

CPC分类号： H01M10/0567 ,  H01M4/131 ,  H01M4/134 ,  H01M4/386 ,  H01M4/505 ,  H01M4/5835 ,  H01M4/667 ,  H01M10/0525 ,  H01M2004/021

摘要： The present invention is directed to aqueous solid state electrolytes that comprise a fluoride additive to stabilize the interface between the anode and aqueous electrolyte. The present invention is also directed to methods of making the solid state electrolyte materials and methods of using the solid state electrolyte materials in batteries and other electrochemical technologies.

公开(公告)号：US20240014399A1

公开(公告)日：2024-01-11

申请号：US18022834

申请日：2021-11-18

申请人： LG Energy Solution, Ltd.

发明人： Hae Jung Jung ,  Boram Lee ,  Tae Gu Yoo ,  Wang Mo Jung ,  Byungchun Park

IPC分类号： H01M4/62 ,  H01M4/131

CPC分类号： H01M4/628 ,  H01M4/131 ,  H01M2004/028

摘要： An additive for a positive electrode of a lithium secondary battery, the additive including a lithium transition metal oxide, Li3PO4, Li5AlO4 and Li3BO3. The lithium transition metal oxide has an aluminum-doped form. The additive including Li3PO4, Li5AlO4 and Li3BO3 together with the lithium transition metal oxide has functionality of improving stability of a battery when used in a positive electrode of a lithium secondary battery. The Li3PO4, the Li5AlO4 and the Li3BO3 are evenly mixed with the lithium transition metal oxide or some thereof form a partial coating layer, or a portion of aluminum is doped to the lithium transition metal oxide to suppress the lithium transition metal oxide from causing a side reaction with an electrolyte liquid.

公开(公告)号：US11870036B2

公开(公告)日：2024-01-09

申请号：US16766976

申请日：2019-07-02

申请人： LG Chem, Ltd.

发明人： Gwang Yeon Kim ,  Chul Haeng Lee ,  Kyoung Ho Ahn ,  Jeong Woo Oh

IPC分类号： H01M10/0567 ,  H01M4/131 ,  H01M4/134 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/02

CPC分类号： H01M10/0567 ,  H01M4/131 ,  H01M4/134 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0569 ,  H01M2004/027 ,  H01M2004/028

摘要： A non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte solution for a lithium secondary battery includes an organic solvent, LiPF6 as a first lithium salt, a second lithium salt excluding the LiPF6, an oligomer represented by Formula 1, as a first additive, and a mixed additive of lithium difluorophosphate (LiDFP), fluorobenzene (FB), and tetravinylsilane (TVS), as a second additive.

公开(公告)号：US11862793B2

公开(公告)日：2024-01-02

申请号：US16641864

申请日：2018-08-23

申请人： SUMITOMO METAL MINING CO., LTD.

发明人： Kazuomi Ryoshi ,  Motoaki Saruwatari ,  Hiroko Oshita ,  Yoshihiro Otsuka

IPC分类号： H01M4/525 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/505 ,  H01M10/0525 ,  H01M50/46 ,  H01M4/02

CPC分类号： H01M4/525 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/505 ,  H01M10/0525 ,  H01M50/46 ,  H01M2004/027 ,  H01M2004/028

摘要： The positive electrode active material is for a non-aqueous electrolyte secondary battery, suppressing deterioration of battery characteristics due to exposure to the atmosphere and having excellent battery capacity. A positive electrode active material for a non-aqueous electrolyte secondary battery includes a lithium-nickel composite oxide represented by general formula (1): LiaNi1−x−yCoxMyO2+α (in which 0.05≤x≤0.35, 0≤y≤0.10, 0.95≤a≤1.10, 0≤a≤0.2, and M represents at least one element selected from Mn, V, Mg, Mo, Nb, Ti, W, and Al) and Li3BO3. At least a part of a surface of the lithium-nickel composite oxide is coated with Li3BO3. The content of boron in the positive electrode active material is 0.001% by mass or more and 0.2% by mass or less with respect to the entire positive electrode active material.