Abstract: A method for preparing a copper-based anode material from a waste battery includes the following steps: (1) disassembling a waste battery and taking out an anode plate; (2) using the anode plate in step (1) as an anode and taking a copper foil current collector as a cathode, and placing the anode and the cathode in an electroplating solution for electroplating; (3) after the electroplating is completed, collecting anode powder separated from the anode and soaking the copper foil current collector in an acid solution; (4) washing and drying the soaked copper foil current collector; and (5) calcinating the copper foil current collector to obtain a copper-base anode material.

Abstract: A battery module which prevents laser transmission, and a battery pack including the same, comprises: a battery cell stack in which a plurality of battery cells are stacked, a lower frame covering a lower surface and both side surfaces of the battery cell stack, an upper frame covering an upper surface of the battery cell stack, and a rib protruding from the upper frame so as to align with a pad located between an outermost battery cell of the battery cell stack and one of the side surfaces of the lower frame. The rib is configured to cut off a laser transmitted between the upper frame and the lower frame.

Abstract: The present disclosure provides a battery housing including a recess and a communication wiring socket. The recess is recessed inward from a side wall of the battery housing. The communication wiring socket is provided on an inner wall of the recess and configured to connect with a battery management system disposed within the battery housing. The recess is configured to provide a handheld space and to receive a communication wiring terminal plugged into the communication wiring socket. The present disclosure further provides an energy storage battery including the battery housing, and an energy storage system including the energy storage battery.

Abstract: A battery cell having first cell connectors, a galvanic cell and a first switching unit electrically coupled to the first cell connectors and the galvanic cell for electrically coupling the galvanic cell to the first cell connectors depending on a switching state of the first switching unit. The battery cell has second cell connectors electrically separated from the first cell connectors and a second switching unit electrically coupled to the second cell connectors and the galvanic cell for electrically coupling the galvanic cell to the second cell connectors depending on a switching state of the second switching unit.

Abstract: An electrode assembly, including a first electrode plate, a second electrode plate, and a separator. The electrode assembly is formed by winding the first electrode plate, the separator, and the second electrode plate. A first tab formed by a plurality of first tab units and a second tab formed by a plurality of second tab units are disposed on the first electrode plate, and a third tab formed by a plurality of third tab units is disposed on the second electrode plate. The electrode assembly is provided with a multi-tab structure to achieve purposes of enhancing a current-carrying capacity of the battery and reducing a temperature rise.

Abstract: A battery according to the present disclosure includes a first electrode, a second electrode, and a solid state electrolyte layer disposed between the first electrode and the second electrode, the solid state electrolyte layer containing at least a solid state electrolyte and at least carbon atoms and including a carbon unevenly distributed layer. The concentration of the carbon atoms in the carbon unevenly distributed layer is higher than the concentration of the carbon atoms in a region of the solid state electrolyte layer excluding the carbon unevenly distributed layer.

Abstract: According to an exemplary embodiment of the present disclosure, a negative electrode active material includes metal-silicon-carbon based particles including a MaSibC matrix, wherein M in the MaSibC matrix is one or more selected from the group consisting of Li, Mg, Na, Ca, and Al, 0.35?a?1, and 1?b?2. Since at the time of charging and discharging a battery, formation of an irreversible phase may be minimized by the MaSibC matrix, initial efficiency of the battery may be improved, and electrical conductivity, physical strength, and chemical stability may be improved, such that capacity and lifecycle characteristics of the battery may be improved.

Abstract: Provided are a negative electrode for a lithium secondary battery and a method of manufacturing the same. The negative electrode for a lithium secondary battery according to an embodiment of the present invention includes a silicon-based negative electrode active material including iron and aluminum, wherein in ICP analysis of a negative electrode active material layer including the silicon-based negative electrode active material, contents of elements in the negative electrode active material layer satisfy the following Relations (1) to (3): A/(B2+C2)?4,500??(1) 5?B?1,500??(2) 3?C?1,000??(3) wherein A is a Li content in ppm, B is an Fe content in ppm, and C is an Al content in ppm, based on the total weight of the ICP-analyzed negative electrode active material layer.

Abstract: An electrode binder composition for a rechargeable battery includes emulsion polymer particles comprising a1) first repeat units derived from conjugated diene monomers; one or more second repeat units selected from the group consisting of b1) repeat units derived from aromatic vinyl monomers, b2) repeat units derived from alkyl (meth)acrylate monomers, b3) repeat units derived from (meth)acryl amide monomers, b4) repeat units derived from nitrile based monomers, and b5) repeat units derived from unsaturated carbonic acid monomers; and c1) third repeat units derived from monomers represented by the following Chemical Formula 1: wherein R1 is hydrogen, or a C1-10 alkyl group, X is hydrogen or a methyl group, Y is oxygen atom, or —NR2-, R2 is hydrogen, or a C1-10 alkyl group, and Z is a C1-10 alkyl group.

Abstract: Circuit module for coupling a plurality of battery cell units. The circuit module includes a first set of terminals having a positive terminal and a negative terminal for coupling to a first battery cell unit, and a second set of terminals having a positive terminal and a negative terminal for coupling to a second battery cell unit. The positive terminal of the first set of terminals is coupled to the negative terminal of the second set of terminals either directly or via one or more passive components, and the negative terminal of the first set of terminals and the positive terminal of the second set of terminals each is coupled to a switching assembly. The switching assembly is operatively configured to selectively connect or bypass each one of the battery cell units. The invention is also directed to a battery system including the circuit module and a plurality of battery cell units.

Abstract: A method for producing a negative electrode for a nonaqueous electrolyte secondary battery, and a nonaqueous electrolyte secondary battery obtained therewith are disclosed. The negative electrode includes a negative electrode current collector, a negative electrode active material layer provided on the surface of the negative electrode current collector, and a first film which has lithium ion permeability and which coats at least a portion of the surface of the negative electrode active material layer and partially coats the surface of the negative electrode current collector. The first film preferably contains a first lithium compound containing an element M1, an element A1, and lithium. Herein, M1 is at least one selected from the group consisting of P, Si, B, V, Nb, W, Ti, Zr, Al, Ba, La, and Ta; and A1 is at least one selected from the group consisting of F, S, O, N, and Br.

Abstract: The present disclosure relates to a composite lithium battery separator and a preparation process therefor. The composite lithium battery separator includes a base film or a ceramic film, and a coating layer covering one side or both sides of the base film or the ceramic film. The coating layer is formed by coating a slurry. The slurry includes 5%-45% by weight of a coating polymer and 55%-95% by weight of an organic solvent, and the coating polymer includes 10-100 parts by weight of a fluorine or acrylic resin polymer, 0.5-10 parts of a polymer adhesive, and 0-90 parts of inorganic nanoparticles.

Abstract: A cylindrical battery provided with: an electrode body in which a positive electrode plate and a negative electrode plate are rolled with a separator being disposed therebetween; an electrolytic solution; an external packaging can which has a bottomed cylindrical shape and which houses the electrode body and the electrolytic solution; and a sealing plate which is fixed by swaging to an opening of the external packaging can with a gasket therebetween. As viewed in a planar view, the sealing plate is formed to have a circular shape, and has a central part recessed inward of the battery. In the sealing plate, an outer circumferential edge fixed by swaging to the external packaging can is configured to bifurcate into a first portion and a second portion in the thickness direction.

Abstract: A rechargeable energy-storage device includes an anode; a cathode; a structural hydrogel disposed between the anode and the cathode, the structural hydrogel having hydrophilic segments and hydrophobic segments; and a porous carbon material disposed between the anode and the cathode. The hydrophilic segments and hydrophobic segments are uniformly distributed within the structural hydrogel.

Abstract: Provided are electrochemical secondary cells that exhibit excellent abuse tolerance, deep discharge and overcharge conditions including at extreme temperatures and remain robust and possess excellent performance. Cells as provided herein include: a cathode a polycrystalline cathode electrochemically active material including the formula Li1+xMO2+y, wherein ?0.9?x?0.3, ?0.3?y?0.3, and wherein M includes Ni at 80 atomic percent or higher relative to total M, an anode including an anode electrochemically active material defined by an electrochemical redox potential of 400 mV or greater vs Li/Li+.

Abstract: Ion exchange membranes materials according to the present disclosure exhibit improved conductivity at low and intermediate relative humidity without sacrificing mechanical strength. Polymers are provided that include a backbone with one or more aryl groups, a halocarbyl group, and a halocarbyl side chain attached to the backbone, wherein the halocarbyl side chain includes a halide separated from the backbone by a hydrocarbyl chain, a hydrocarbyl ring, or combinations thereof. The halide is substituted with a tertiary amine and halide anions are then exchanged with hydroxide anions. The polymers are then contacted with phosphoric acid, which is deprotonated by the hydroxide ions, forming anions which enhance interactions with adjacent quaternary ammonium groups and induce excess phosphoric acid molecules to cluster around those quaternary ammonium groups. The membranes exhibit negligible dopant leaching even at high relative humidity.

Abstract: An anode material includes a core-shell structured composite material. The core-shell structured composite material includes a core material, an inner shell material, and an outer shell material. The core material includes graphite particles. The inner shell material includes a continuous phase and a dispersing phase. The dispersing phase includes nano silicon particles, the continuous phase includes carbon, and the outer shell material includes lithium metal. A chemical formula of the nano silicon-based particles is SiOx, 0<x<2.

Abstract: The invention relates to an electrolyte capable of improving the energy efficiency of a lithium air battery, and a lithium air battery using the electrolyte. An electrolyte for lithium air batteries according to the invention includes an amide-based organic solvent and lithium nitrate, wherein the concentration of lithium nitrate in the amide-based organic solvent satisfies a range of no less than 2 mol/L to no greater than 5.5 mol/L. A lithium air battery according to the invention includes an air electrode, a negative electrode including a lithium metal, and an electrolyte located between the air electrode and the negative electrode, wherein the electrolyte is provided by the aforesaid electrolyte.

Abstract: An electrode assembly for a secondary battery includes at least one positive electrode and at least one negative electrode alternately stacked in a state in which a separator is interposed therebetween. The positive electrode includes a first positive electrode having a single positive electrode tab and a second positive electrode having two or more positive electrode tabs. The negative electrode includes a first negative electrode having a single negative electrode tab and a second negative electrode having two or more negative electrode tabs. The output of the electrode assembly is adjustable.

Abstract: A hybrid redox fuel cell system includes a hybrid redox fuel cell including an anode side through which a reductant is flowed and a cathode side through which liquid electrolyte is flowed, and a catalyst bed fluidly connected to the cathode side of the hybrid redox fuel cell, the catalyst bed including a substrate layer and a catalyst layer spiral wound into a jelly roll structure. Furthermore, the liquid electrolyte includes a metal ion at a higher oxidation state and the metal ion at a lower oxidation state, and power is generated at the hybrid redox fuel cell by way of reducing the metal ion from the higher oxidation state to the lower oxidation state at the cathode side while oxidizing the reductant at the anode side.