An electrochemical battery is disclosed. The electrochemical battery has an electrode plate comprising a frame and a generally flat grid connected to the frame, the frame comprising at least a top frame member having a contact lug, wherein the grid comprises a plurality of grid wires and a plurality of window-like open areas between the grid wires, further comprising an active mass within the open areas and/or on the grid wires, wherein the electrode plate comprises on one outer surface or on both opposing outer surfaces of the active mass a pattern of grooves, wherein the grooves extend diagonally from a position closer to the top frame member to a position further away from the top frame member. A method for producing an electrode plate is also disclosed.

The weight and size of a lead-acid battery is reduced and the energy density per mass by forming base members of components of the lead-acid battery is improved by using aluminum or aluminum alloy and forming multiple plating layers on a surface of each base member. In order to prevent formation of pinholes in the multiple plating layers, the surface of the base member 22 is subjected to flattening processing, a solder plating layer with a film thickness of 10 μm or more is formed, or many layers of group 4 metals with similar chemical properties are laminated. Moreover, in a positive electrode plate and a negative electrode plate, an active material layer 24 is formed on the outermost lead plating layer by an electrolytic formation treatment to improve the charging and discharging efficiencies of the lead-acid battery and to greatly reduce fall-off the active material layer 24.

The weight and size of a lead-acid battery is reduced and the energy density per mass by forming base members of components of the lead-acid battery is improved by using aluminum or aluminum alloy and forming multiple plating layers on a surface of each base member. In order to prevent formation of pinholes in the multiple plating layers, the surface of the base member 22 is subjected to flattening processing, a solder plating layer with a film thickness of 10 μm or more is formed, or many layers of group 4 metals with similar chemical properties are laminated. Moreover, in a positive electrode plate and a negative electrode plate, an active material layer 24 is formed on the outermost lead plating layer by an electrolytic formation treatment to improve the charging and discharging efficiencies of the lead-acid battery and to greatly reduce fall-off the active material layer 24.

A conductive current collector with modified surfaces can be included as a portion of a bipolar battery assembly. The fabrication process can include deposition or formation of a thin film layer such as metal silicide on a surface of the current collector. Metal silicides can be created by co-sputtering or by annealing after deposition of one or more of a silicon or a metal layer. Additional layers can be provided, such as to facilitate adhesion of an active material to a current collector.

A conductive current collector with modified surfaces can be included as a portion of a bipolar battery assembly. The fabrication process can include deposition or formation of a thin film layer such as metal silicide on a surface of the current collector. Metal silicides can be created by co-sputtering or by annealing after deposition of one or more of a silicon or a metal layer. Additional layers can be provided, such as to facilitate adhesion of an active material to a current collector.

The invention relates to a laminar textile material for covering a pasty active mass on a battery electrode. The invention further relates to a battery electrode having such a material, to a battery, and to a method for producing battery electrodes. Potential improvements of lead batteries are disclosed that are more practical than previously known solutions, and that stabilize the pasty active mass on the battery electrodes. A laminar textile material is disclosed to this end, comprising glass fibers and fibers made of a thermoplastic, e.g. polyester.

The invention relates to a laminar textile material for covering a pasty active mass on a battery electrode. The invention further relates to a battery electrode having such a material, to a battery, and to a method for producing battery electrodes. Potential improvements of lead batteries are disclosed that are more practical than previously known solutions, and that stabilize the pasty active mass on the battery electrodes. A laminar textile material is disclosed to this end, comprising glass fibers and fibers made of a thermoplastic, e.g. polyester.

Provided herein is a method of preparing carbon-graphene-lead composite particles, comprising the steps of forming a dispersion of lead particles, graphene particles and cellulose in an aqueous solution, spray drying the dispersion to aggregate the lead particles, graphene particles and cellulose to form cellulose-graphene-lead composite particles, and heating the cellulose-graphene-lead composite particles, to carbonize the cellulose to result in the formation of the carbon-graphene-lead composite particles.

The present disclosure relates to battery plates which are useful in optimizing the power and energy density of a batter assembly by having discrete active materials. The present disclosure relates to a battery plate having: a) a substrate having a first surface opposing a second surface; b) one or more active materials disposed on the first surface, second surface, or both the first surface and the second surface of the substrate; and wherein the one or more active materials include two or more discrete active material regions.

A paste extruding device for a tubular positive plate includes a plate main body. The plate main body includes a cross beam, ribs and a tab. The ribs are linearly distributed on a bottom surface of the cross beam, and the tab is provide on a top surface of the cross beam. A processing tube is sleeved outside the rib, and the processing tube has a cavity shell structure with an open top. A filling cavity is formed between the rib and the processing tube, and a sliding groove is provided at a vertical central line of an outer wall of the processing tube. A processing sliding base is slidably sleeved on the outer wall of the processing tube. A paste extruding cavity is provided at an inner top of the processing sliding base, and a cooling cavity is provided at an inner bottom of the processing sliding base.