公开(公告)号：US20220209243A1

公开(公告)日：2022-06-30

申请号：US17442441

申请日：2020-03-03

申请人： TOYO KOHAN CO., LTD.

发明人： Michio KAWAMURA ,  Shinichiro HORIE ,  Etsuro TSUTSUMI ,  Koh YOSHIOKA

IPC分类号： H01M4/66 ,  C25D5/12 ,  C25D7/00 ,  C25D5/50 ,  H01M10/30

摘要： The present invention has as its object the provision of a surface-treated sheet for an alkaline secondary battery, which has gas evolution suppressing effect and also has resistance to an alkaline electrolyte solution. A surface-treated sheet 100 of the present invention for an alkaline secondary battery has a base material 10, and a metal layer 20 formed on at least one side of the base material 10. The metal layer 20 includes an alloy layer 20M that contains Ni and Zn, the alloy layer includes a first region 20A in which a proportion of Ni is 60% to 85% based on a total content of Ni and Zn, and the first region 20A has a thickness of 0.15 μm or greater.

公开(公告)号：US20230243056A1

公开(公告)日：2023-08-03

申请号：US18004963

申请日：2021-07-15

申请人： TOYO KOHAN CO., LTD.

发明人： Michio KAWAMURA ,  Shinichiro HORIE ,  Etsuro TSUTSUMI ,  Yuma YOSHIZAKI ,  Koh YOSHIOKA

IPC分类号： C25D1/04 ,  H01M4/66 ,  C25D7/06

CPC分类号： C25D1/04 ,  H01M4/66 ,  C25D7/0614

摘要： It is an object of the present invention to provide an electrolytic iron foil and a battery current collector in which the risk of breakage or tearing during manufacture caused by reduction in film thickness can be suppressed and which have thinness as well as strength and elongation sufficient for withstanding repeated charging and discharging in a secondary battery.
An electrolytic iron foil in which, in at least either one surface, a crystallite diameter on (110) plane of iron is equal to or more than 45 nm and the electrolytic iron foil is less than 20 μm in thickness.

公开(公告)号：US20240105960A1

公开(公告)日：2024-03-28

申请号：US17768966

申请日：2020-09-29

申请人： TOYO KOHAN CO., LTD.

发明人： Michio KAWAMURA ,  Shinichiro HORIE ,  Etsuro TSUTSUMI ,  Yuma YOSHIZAKI ,  Koh YOSHIOKA

IPC分类号： H01M4/66 ,  H01M4/70

CPC分类号： H01M4/662 ,  H01M4/70

摘要： An electrolytic foil and a battery current collector is provided in which the risk of breakage or tearing during manufacturing presented by reduced thickness can be restrained, and which possess sufficient strength for repeated charging and discharging in a secondary battery. The electrolytic foil and the battery current collector contain a Ni—Fe alloy layer, having a thickness of 1.5 to 10 μm and having a first surface and a second surface and wherein the value of a three-dimensional surface properties parameter Sv divided by the thickness is equal to or less than 0.5 for the first surface and the second surface.