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公开(公告)号：US20240360578A1
公开(公告)日：2024-10-31
申请号：US18548171
申请日：2023-03-28
发明人： Jeong Hwan KIM , Sae Kwon HEO , Gyun HU
IPC分类号： C25D1/04
CPC分类号： C25D1/04
摘要： A method for manufacturing an electrolytic copper foil according to one embodiment of the present disclosure includes: preparing an electrolyte containing copper ion and nickel ion by dissolving copper (Cu) and nickel (Ni) in sulfuric acid; and forming a copper layer by supplying an electric current to a positive plate and a negative electrode rotating drum disposed apart from each other in the electrolyte. The concentration of the nickel ion is 50 ppm to 350 ppm.
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公开(公告)号：US20240229275A1
公开(公告)日：2024-07-11
申请号：US18456923
申请日：2023-08-28
发明人： Chih CHEN , Guan-You SHEN
CPC分类号： C25D1/04 , C25D3/38 , C25D7/0614
摘要： A nano-twinned copper foil is provided, which comprises: plural twinned grains, wherein at least part of the plural twinned grains are formed by stacking plural nano-twins along a [111] crystal axis. The nano-twinned copper foil has a first surface and a second surface opposite to the first surface, and 80% or more of areas of the first surface and the second surface respectively exposes (111) planes of the nano-twins. In addition, the present invention further provides a method for manufacturing the aforesaid nano-twinned copper foil, an electronic element comprising the same, and a method for manufacturing the electronic element.
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公开(公告)号：US20240229274A9
公开(公告)日：2024-07-11
申请号：US18113487
申请日：2023-02-23
发明人： Sang Wook KIM , Sang Soo KIM , Mi Jung PARK , Ju A KIM , Ji Hyun LEE
摘要： Disclosed is a method of removing lead materials from an anode for manufacturing copper foil to regenerate the anode. The method includes cleaning solution preparation, anode cleaning and anode washing. The cleaning solution preparation includes preparing a cleaning solution containing an aqueous solution of EDTA and citric acid. The cleaning solution used to perform the anode cleaning has a pH of 7 to 9 and a temperature of 20 to 50° C. The anode cleaning includes cleaning the anode by immersing the anode including the lead materials attached to the surface thereof in the cleaning solution to perform EDTA-Pb chelation. As a result, the transfer of the lead materials from the anode to the cleaning solution means substantial removal of the lead materials from the anode. The anode, from which the lead materials have been removed, is washed using a high-pressure washer.
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4.发明公开公开(公告)号：US20240191383A1
公开(公告)日：2024-06-13
申请号：US18279428
申请日：2022-02-22
申请人： NanoWired GmbH
摘要： Apparatus for galvanically growing a plurality of nanowires on a substrate, comprising a substrate holder and a housing, in which a chamber, a control unit and a storage tank for an electrolyte are arranged, the apparatus being designed to grow the plurality of nanowires from the electrolyte onto the substrate when the substrate holder with the substrate has been inserted into the chamber.
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公开(公告)号：US20240175162A1
公开(公告)日：2024-05-30
申请号：US18284630
申请日：2022-03-17
发明人： Ayumu TATEOKA , Tsubasa KATO , Shota KAWAGUCHI , Po Chun YANG
摘要： Provided is a roughened copper foil capable of achieving both excellent transmission characteristics and suppression of powdering. This roughened copper foil includes a roughened surface on at least one side. The roughened surface has a roughness slope tan θ of 0.58 or less as calculated based on a mean height Rc (μm) and a mean width RSm (μm) of profile elements by formula Rc/(0.5×RSm), and a sharpness index Rc×Sku of 2.35 or less that is a product of the mean height Rc (μm) and a kurtosis Sku. Rc and RSm are values measured in accordance with JIS B0601-2013 under a condition of not performing a cutoff by a cutoff value λs and a cutoff value λc, and Sku is a value measured in accordance with ISO 25178 under a condition of not performing a cutoff using an S filter and an L filter.
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公开(公告)号：US20240084469A1
公开(公告)日：2024-03-14
申请号：US18275509
申请日：2022-02-22
发明人： Takumi Kaneko , Yuta Nakajo , Daisuke Suzuki , Matsuhide Horikawa , Hideki Fujii
摘要： A method for producing a titanium foil according to the present invention includes an electrodeposition step of performing electrolysis with electrodes including an anode and a cathode using a molten salt bath comprising titanium ions and having at least one molten chloride to deposit metal titanium onto an electrolytic surface of the cathode, wherein the electrodeposition step includes maintaining a ratio of a molar concentration of titanium ions to the total molar concentration of metal ions in the molten salt bath at 7% or more, and maintaining a temperature of the molten salt bath at 510° C. or less, and conducting a current to the electrodes under conditions where a continuous stop time of current conduction is less than 1.0 second, a current density is 0.10 A/cm2 or more and 1.0 A/cm2 or less, and a time for electrodepositing the metal titanium onto the electrolytic surface of the cathode is 120 minutes or less.
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公开(公告)号：US11866843B2
公开(公告)日：2024-01-09
申请号：US17228766
申请日：2021-04-13
发明人： Sun Hyoung Lee , Tae Jin Jo , Seul-Ki Park , Ki Deok Song
CPC分类号： C25D3/38 , C25D1/04 , C25D7/0614 , H01M4/0452 , H01M4/38
摘要： The present invention relates to an electrolytic copper foil for a secondary battery, having excellent physical properties at a low temperature, and a method for producing the electrolytic copper foil. The electrolytic copper foil for a secondary battery shows little change in the physical properties, such as tensile strength and elongation, of a copper foil even at a low temperature and thereby exhibits excellent cycle properties at the low temperature. The electrolytic copper foil for a secondary battery is produced from a plating solution, containing total organic carbon (TOC), cobalt, iron and zinc, by using a drum and coated with a cathode active material, wherein the ratio between the TOC, cobalt, iron and zinc contained in the electrolytic copper foil follows the following formula 1:
TOC/(cobalt+iron+zinc)=1.0-1.2. [Formula 1]-
公开(公告)号：US11705606B2
公开(公告)日：2023-07-18
申请号：US17151682
申请日：2021-01-19
发明人： Qinglei Liu
IPC分类号： H01M50/534 , H01M10/04 , C25D3/38 , C25D1/04 , H01M10/0525 , H01M50/533 , H01M4/66 , H01M4/70
CPC分类号： H01M50/534 , H01M10/04 , C25D1/04 , C25D3/38 , H01M4/661 , H01M4/70 , H01M10/0525 , H01M50/533 , Y02E60/10 , Y02P70/50
摘要： A tab, a preparation method thereof, and a battery including the tab are disclosed. The tab is a copper foil material, a surface of the copper foil material having a large compressive stress is an S surface, a surface having a small compressive stress is an M surface, and only the M surface is provided with an indentation or a reinforcing rib. In the preparation method of the tab of the disclosure, the S surface/M surface of the copper foil material are identified, and it is ensured that a feed direction is oriented so that the M surface faces outward (or inward), and winding/unwinding directions of each process and a mounting direction of an embossing device are reasonably fixed, so as to ensure that a tab emboss pattern of a product is pressed on the M surface of the copper foil material rather than the S surface or both surfaces.
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公开(公告)号：US20230111549A1
公开(公告)日：2023-04-13
申请号：US17509682
申请日：2021-10-25
发明人： Honggi MOON , Sangbeom KIM , Seunghwan KIM
IPC分类号： H01M4/66 , H01M10/052 , C25D1/04
摘要： A copper foil having high fracture energy to be strong against breakage is disclosed. An electrode for secondary batteries and a secondary battery exhibiting, by including the copper foil, excellent characteristics in terms of, for example, cycle lifespan, safety, and workability are also disclosed.
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公开(公告)号：US11618961B2
公开(公告)日：2023-04-04
申请号：US16605859
申请日：2018-04-20
发明人： Ozan Akkus , Mousa Younesi , Umit Levent Erol
摘要： Devices suitable for the production of electrochemically aligned materials such as strands, threads or fibers. The device includes a substantially horizontally aligned electrochemical cell in one embodiment, with the arrangement producing highly compacted materials. Materials including electrochemically aligned and compacted compounds are also disclosed, along with methods for making and using the materials.
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