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    Pre-Seeded Zinc Anodes for Secondary Batteries
    1.
    发明申请
    Pre-Seeded Zinc Anodes for Secondary Batteries 有权

    公开(公告)号：US20230130280A1

    公开(公告)日：2023-04-27

    申请号：US17509089

    申请日：2021-10-25

    申请人： City University of Hong Kong

    发明人： Chunyi ZHI ,  Qing LI

    IPC分类号： H01M4/24 ,  H01M4/04 ,  C25D3/22

    摘要： The present invention provides a zinc battery anode that includes a first layer of zinc foil. An electroplated zinc seed layer is formed on the first layer of zinc foil, the electroplated zinc seed layer having a thickness in a range of 0.01 to 2 microns. The invention further provides a method for forming a seed layer on a zinc battery anode. In the process, the zinc seed layer is deposited on a zinc foil battery anode by electrochemical deposition from a zinc ion-containing solution at a current density of approximately 20 mA cm−2 to 100 mA cm−2 to form a uniform and dense seed layer. Through use of a seed layer on the zinc anode, dendrite formation is prevented and long battery life is demonstrated.

    Production process for highly conducting and oriented graphene film
    4.
    发明授权
    Production process for highly conducting and oriented graphene film 有权

    公开(公告)号：US11469009B2

    公开(公告)日：2022-10-11

    申请号：US16193240

    申请日：2018-11-16

    申请人： Nanotek Instruments, Inc.

    发明人： Aruna Zhamu ,  Bor Z. Jang

    IPC分类号： H01B1/04 ,  C25D5/54 ,  C23C18/16 ,  C01B32/184 ,  C01B32/19 ,  C23C14/06 ,  C23C16/26 ,  C25D3/22 ,  C23C18/40

    摘要： A process for producing a highly conducting film of conductor-bonded graphene sheets that are highly oriented, comprising: (a) preparing a graphene dispersion or graphene oxide (GO) gel; (b) depositing the dispersion or gel onto a supporting solid substrate under a shear stress to form a wet layer; (c) drying the wet layer to form a dried layer having oriented graphene sheets or GO molecules with an inter-planar spacing d002 of 0.4 nm to 1.2 nm; (d) heat treating the dried layer at a temperature from 55° C. to 3,200° C. for a desired length of time to produce a porous graphitic film having pores and constituent graphene sheets or a 3D network of graphene pore walls having an inter-planar spacing d002 less than 0.4 nm; and (e) impregnating the porous graphitic film with a conductor material that bonds the constituent graphene sheets or graphene pore walls to form the conducting film.

    STEEL CORD WITH A BRASS COATING ENRICHED WITH IRON PARTICLES
    6.
    发明申请
    STEEL CORD WITH A BRASS COATING ENRICHED WITH IRON PARTICLES 有权

    公开(公告)号：US20220112656A1

    公开(公告)日：2022-04-14

    申请号：US17423673

    申请日：2020-01-27

    申请人： NV BEKAERT SA

    发明人： Baoxing WANG ,  Yunfang TANG ,  Yohann HAMON

    IPC分类号： D07B1/06 ,  C22C9/04 ,  C25D3/38 ,  C25D5/50 ,  C25D5/10 ,  C25D3/22 ,  C25D3/20 ,  C25D7/06 ,  B21C23/08

    摘要： A steel cord that is suitable for reinforcing rubber articles such as tires. The inventive steel cord enables to completely eliminate the presence of cobalt in a tire when combined with the proper cobalt free compound. Advantageously the steel cord adheres equally well to rubbers containing organic cobalt salts. The inventive wire is different from prior art steel cords in that the brass coating now comprises iron particles. The iron particles have a size between 10 nm and 10 000 nm. The presence of iron mitigates the adhesion retention loss of the rubber to steel cord bond in a hot and humid environment. It is a further advantage that the inventive steel cord does not contain any intentionally added cobalt thereby contributing to the elimination of harmful substances in the production area as well as the environment.

    Metal deposits, compositions, and methods for making the same
    9.
    发明授权
    Metal deposits, compositions, and methods for making the same 有权

    公开(公告)号：US11274374B2

    公开(公告)日：2022-03-15

    申请号：US16438077

    申请日：2019-06-11

    申请人： Iontra LLC

    发明人： Daniel A. Konopka ,  Li Hsien Chou

    IPC分类号： C25D3/20 ,  C25D3/10 ,  C25D3/12 ,  C25D3/22 ,  C25D3/26 ,  C25D3/32 ,  C25D3/38 ,  C25D3/58 ,  C25D3/66

    摘要： Provided herein is a composition for forming a metal deposit on a substrate. The composition consists essentially of a carboxamide, trialkylamine chloride, and a metal salt. The carboxamide comprises Formula (I). The trialkylamine chloride and the carboxamide are in molar ratio between 1:1 and 1:30 to form an ionic liquid. The trialkylamine chloride is trimethylamine chloride (TMACl), triethylamine chloride (TEACl), triethanolamine chloride, or combinations thereof. The metal salt has the formula MXy, wherein M is a metal, X is a halide, and y is an oxidation number of M, the metal salt being in a concentration between about 0.2 and about 1.5 moles per liter of the ionic liquid. The metal deposit has an average grain size between about 0.2 μm and about 3 μm and contains less than about 1 mol % of each oxygen, carbon, and chlorine.