A method for creating a chrome-plated surface having a matte finish that typically includes: controlling a resistance of a current bridge circuit; depositing a first chromium layer on a substrate positioned in a chromium bath, wherein the first chromium layer is deposited by supplying current from a power source that is electrically connected to the substrate and to anodes positioned in the chromium bath; etching the first chromium layer by engaging a current bridge that closes the current bridge circuit; depositing a first intermediate chromium layer, wherein the first intermediate chromium layer is deposited by supplying current from the power source; etching the first intermediate chromium layer, wherein the first intermediate chromium layer is etched by engaging the current bridge; and depositing a final chromium layer, wherein the final chromium layer is deposited by supplying current from the power source.

A method for creating a chrome-plated surface having a matte finish that typically includes: controlling a resistance of a current bridge circuit; depositing a first chromium layer on a substrate positioned in a chromium bath, wherein the first chromium layer is deposited by supplying current from a power source that is electrically connected to the substrate and to anodes positioned in the chromium bath; etching the first chromium layer by engaging a current bridge that closes the current bridge circuit; depositing a first intermediate chromium layer, wherein the first intermediate chromium layer is deposited by supplying current from the power source; etching the first intermediate chromium layer, wherein the first intermediate chromium layer is etched by engaging the current bridge; and depositing a final chromium layer, wherein the final chromium layer is deposited by supplying current from the power source.

Provided are an electrodeposited copper foil, a current collector, an electrode, and a lithium-ion secondary battery comprising the same. The electrodeposited copper foil has a deposited side and a drum side opposite the deposited side. In a first aspect, ΔRS between the deposited side and the drum side is at most about 95 MPa, and the deposited side exhibits a Vv in a range from about 0.15 μm.sup.3/μm.sup.2 to about 1.35 μm.sup.3/μm.sup.2. In a second aspect, the deposited side has a Sku of about 1.5 to about 6.5 and the deposited side exhibits a Vv in a range from about 0.15 μm.sup.3/μm.sup.2 to about 1.35 μm.sup.3/μm.sup.2. The characteristics are beneficial to improve the quality of the electrodeposited copper foil, thereby extending the charge-discharge cycle life of a lithium-ion secondary battery comprising the same.

The invention relates to a method for the adjustment of the lightness L* of electrolytically deposited chromium-finishes on workpieces obtained by an electroplating bath comprising at least chromium(III)-ions and sulfur containing organic compounds, wherein the concentration of the sulfur containing organic compounds in the bath are adjusted by passing at least part of the bath composition through an activated carbon filter. Furthermore, the invention is directed to dark chrome coatings comprising a defined concentration gradient of deposited sulfur containing organic compounds.

The invention relates to a method for the adjustment of the lightness L* of electrolytically deposited chromium-finishes on workpieces obtained by an electroplating bath comprising at least chromium(III)-ions and sulfur containing organic compounds, wherein the concentration of the sulfur containing organic compounds in the bath are adjusted by passing at least part of the bath composition through an activated carbon filter. Furthermore, the invention is directed to dark chrome coatings comprising a defined concentration gradient of deposited sulfur containing organic compounds.

A method for creating a chrome-plated surface having a matte finish that typically includes: controlling a resistance of a current bridge circuit; depositing a first chromium layer on a substrate positioned in a chromium bath, wherein the first chromium layer is deposited by supplying current from a power source that is electrically connected to the substrate and to anodes positioned in the chromium bath; etching the first chromium layer by engaging a current bridge that closes the current bridge circuit; depositing a first intermediate chromium layer, wherein the first intermediate chromium layer is deposited by supplying current from the power source; etching the first intermediate chromium layer, wherein the first intermediate chromium layer is etched by engaging the current bridge; and depositing a final chromium layer, wherein the final chromium layer is deposited by supplying current from the power source.

A method for creating a chrome-plated surface having a matte finish that typically includes: controlling a resistance of a current bridge circuit; depositing a first chromium layer on a substrate positioned in a chromium bath, wherein the first chromium layer is deposited by supplying current from a power source that is electrically connected to the substrate and to anodes positioned in the chromium bath; etching the first chromium layer by engaging a current bridge that closes the current bridge circuit; depositing a first intermediate chromium layer, wherein the first intermediate chromium layer is deposited by supplying current from the power source; etching the first intermediate chromium layer, wherein the first intermediate chromium layer is etched by engaging the current bridge; and depositing a final chromium layer, wherein the final chromium layer is deposited by supplying current from the power source.

A method of producing a die for forming an interior component of a vehicle includes: setting a temperature of a plating bath in a range from 25 to 40 C.; immersing at least a forming surface on a base for the die in the plating bath; and feeding a current to the base with a current density in a range from 20 to 80 A/dm.sup.2 until a metal layer is formed on the forming surface.

A method of manufacturing a multiple-color plating member includes forming a copper plating layer on at least a part of a surface of a substrate, forming a nickel plating layer on a surface of the copper plating layer, forming a chromium plating layer on a surface of the nickel plating layer, applying a color coating agent onto a surface of the chromium plating layer and then drying the applied color coating agent to form a color coating layer, and applying a clear coating agent onto a surface of the color coating layer and photocuring the applied clear coating agent to form a clear layer. The color coating agent includes 10 to 35% by weight of a modified acrylic resin, 1 to 25% by weight of a pigment, and 40 to 80% by weight of a first solvent. The clear coating agent includes 10 to 30% by weight of a polyester-modified acrylic resin, 5 to 25% by weight of an acrylic oligomer, 5 to 45% by weight of an acrylic monomer, 1 to 15% by weight of a photoinitiator, and 10 to 75% by weight of a second solvent.

A method of manufacturing a multiple-color plating member includes forming a copper plating layer on at least a part of a surface of a substrate, forming a nickel plating layer on a surface of the copper plating layer, forming a chromium plating layer on a surface of the nickel plating layer, applying a color coating agent onto a surface of the chromium plating layer and then drying the applied color coating agent to form a color coating layer, and applying a clear coating agent onto a surface of the color coating layer and photocuring the applied clear coating agent to form a clear layer. The color coating agent includes 10 to 35% by weight of a modified acrylic resin, 1 to 25% by weight of a pigment, and 40 to 80% by weight of a first solvent. The clear coating agent includes 10 to 30% by weight of a polyester-modified acrylic resin, 5 to 25% by weight of an acrylic oligomer, 5 to 45% by weight of an acrylic monomer, 1 to 15% by weight of a photoinitiator, and 10 to 75% by weight of a second solvent.