Provided is a fixing sleeve making it possible to reduce the surface roughness of the inner circumferential surface of the fixing sleeve by spinning, and a method for manufacturing the fixing sleeve. The spinning is performed by moving rollers, in the axial direction of a cup-shaped tubular body and, at the same time, a burnishing tool (spherical tool) is pressed against the outer circumferential surface of the cup-shaped tubular body after the spinning, and the burnishing tool is moved in the same direction as the rollers. The cup-shaped tubular body is plastically deformed in the axial direction of the cup-shaped tubular body, reduced in wall thickness, and elongated in the axial direction.

Polymers used as rolling lubricating agents, to compositions including said polymers, and to alkali metal films including the polymers or compositions on the surface(s) thereof. The use of said polymers and compositions is also described for strip-rolling alkali metals or alloys thereof in order to obtain thin films. Methods for producing said thin films, which are suitable for use in electrochemical cells, are also described. An improved lubricant according to formula I, which, for example, achieves enhanced conductivity, and/or enables the production of electrochemical cells having an improved life span in cycles.

Polymers used as rolling lubricating agents, to compositions including said polymers, and to alkali metal films including the polymers or compositions on the surface(s) thereof. The use of said polymers and compositions is also described for strip-rolling alkali metals or alloys thereof in order to obtain thin films. Methods for producing said thin films, which are suitable for use in electrochemical cells, are also described. An improved lubricant according to formula I, which, for example, achieves enhanced conductivity, and/or enables the production of electrochemical cells having an improved life span in cycles.

A copper foil composite comprising a copper foil and a resin layer laminated, the copper foil containing at least one selected from the group consisting of Sn, Mn, Cr, Zn, Zr, Mg, Ni, Si and Ag at a total of 30 to 500 mass ppm, a tensile strength of the copper foil having of 100 to 180 MPa, a degree of aggregation I200/I.sub.0200 of a (100) plane of the copper foil being 30 or more, and an average grain size viewed from a plate surface of the copper foil being 10 to 400 m.

A copper foil composite comprising a copper foil and a resin layer laminated, the copper foil containing at least one selected from the group consisting of Sn, Mn, Cr, Zn, Zr, Mg, Ni, Si and Ag at a total of 30 to 500 mass ppm, a tensile strength of the copper foil having of 100 to 180 MPa, a degree of aggregation I200/I.sub.0200 of a (100) plane of the copper foil being 30 or more, and an average grain size viewed from a plate surface of the copper foil being 10 to 400 m.

The present invention relates to polymers used as rolling lubricating agents, to compositions comprising said polymers, and to alkali metal films including the polymers or compositions on the surface(s) thereof. The use of said polymers and compositions is also described for strip-rolling alkali metals or alloys thereof in order to obtain thin films. Methods for producing said thin films, which are suitable for use in electrochemical cells, are also described. The present invention proposes an improved lubricant according to formula I, which, for example, achieves enhanced conductivity, and/or enables the production of electrochemical cells having an improved life span in cycles.

The present invention relates to polymers used as rolling lubricating agents, to compositions comprising said polymers, and to alkali metal films including the polymers or compositions on the surface(s) thereof. The use of said polymers and compositions is also described for strip-rolling alkali metals or alloys thereof in order to obtain thin films. Methods for producing said thin films, which are suitable for use in electrochemical cells, are also described. The present invention proposes an improved lubricant according to formula I, which, for example, achieves enhanced conductivity, and/or enables the production of electrochemical cells having an improved life span in cycles.

A copper foil composite comprising a copper foil and a resin layer laminated thereon, satisfying an equation 1: (f.sub.3t.sub.3)/(f.sub.2t.sub.2)=>1 wherein t.sub.2 (mm) is a thickness of the copper foil, f.sub.2 (MPa) is a stress of the copper foil under tensile strain of 4%, t.sub.3 (mm) is a thickness of the resin layer, f.sub.3 (MPa) is a stress of the resin layer under tensile strain of 4%, and an equation 2: 1<=33f.sub.1/(FT) wherein f.sub.1 (N/mm) is 180 peeling strength between the copper foil and the resin layer, F(MPa) is strength of the copper foil composite under tensile strain of 30%, and T (mm) is a thickness of the copper foil composite, wherein a Sn layer having a thickness of 0.2 to 3.0 m is formed on a surface of the copper foil on which the resin layer is not laminated.

A copper foil composite comprising a copper foil and a resin layer laminated thereon, satisfying an equation 1: (f.sub.3t.sub.3)/(f.sub.2t.sub.2)=>1 wherein t.sub.2 (mm) is a thickness of the copper foil, f.sub.2 (MPa) is a stress of the copper foil under tensile strain of 4%, t.sub.3 (mm) is a thickness of the resin layer, f.sub.3 (MPa) is a stress of the resin layer under tensile strain of 4%, and an equation 2: 1<=33f.sub.1/(FT) wherein f.sub.1 (N/mm) is 180 peeling strength between the copper foil and the resin layer, F(MPa) is strength of the copper foil composite under tensile strain of 30%, and T (mm) is a thickness of the copper foil composite, wherein a Sn layer having a thickness of 0.2 to 3.0 m is formed on a surface of the copper foil on which the resin layer is not laminated.

A device for configuring foil for use in cooking food comprising a base portion comprising first and second portions, a first plurality of elements operatively associated with the first portion; and a second plurality of elements operatively associated with the second portion; at least one of the first or second plurality of elements operating to move for entry of foil therebetween; the first and second plurality of elements operating to configure foil as the foil passes between the first and second plurality of elements. A method of cooking using configured foil.