Title:
金属箔、金属箔の製造方法、二次電池用負極および二次電池用正極
Document Type and Number:
Japanese Patent JP6858868
Kind Code:
B2
Abstract:
An object of the present invention is to provide a metal foil which is thin, has high strength, and has high adhesiveness to an active material, a method for manufacturing a metal foil, a negative electrode for a secondary battery, and a positive electrode for a secondary battery. The metal foil has a thickness of 5 µm or greater and less than 100 µm, is a foil selected from the group consisting of a copper foil, a silver foil, a gold foil, a platinum foil, a stainless steel foil, a titanium foil, a tantalum foil, a molybdenum foil, a niobium foil, a zirconium foil, a tungsten foil, a beryllium copper foil, a phosphor bronze foil, a brass foil, a nickel silver foil, a tin foil, a zinc foil, an iron foil, a nickel foil, a Permalloy foil, a nichrome foil, a 42 alloy foil, a Kovar foil, a Monel foil, an Inconel foil, and a Hastelloy foil, or a metal foil formed by laminating a foil selected from this group and a metal of a different type from the selected foil, and has a surface area ratio ΔS of 2% or more.
Inventors:
Junji Kawaguchi
Application Number:
JP2019538082A
Publication Date:
April 14, 2021
Filing Date:
August 10, 2018
Export Citation:
Assignee:
FUJIFILM Corporation
International Classes:
H01M4/70; H01M4/13; H01M4/134; H01M4/136; H01M4/38; H01M4/48; H01M4/58; H01M4/66
Domestic Patent References:
| JP2010033768A | ||||
| JP10303532A |
Foreign References:
| WO2015186752A1 | ||||
| WO2016159058A1 | ||||
| WO2015115331A1 |
Attorney, Agent or Firm:
Hideaki Ito
Fumio Mitsuhashi
Fumio Mitsuhashi