A method for manufacturing a positive electrode active material includes: (a) performing a first mixing process at a first shear rate to form a mixture of a lithium transition metal composite oxide and a graphene; and (b) performing a second mixing process at a second shear rate on the mixture…
Disclosed herein relates to a battery cell. The battery cell includes: a first case including a base plate; a plurality of stack cells on the base plate, each of the plurality of stack cells including a positive electrode, a negative electrode, and a separator interposed between the positive…
The invention relates to a binder dosing system (10) for continuously dispensing a fibrillatable binder (20) for the production of electrode masses as well as a dosing method therefor. Furthermore, a continuous production system (84) for manufacturing electrode masses is proposed, which comprises…
A method for manufacturing a dry electrode for a secondary battery is described, involving the use of a mixer to combine materials without the use of solvents. The process begins by supplying a conductive material into the mixer, followed by the distribution of an electrode active material onto the…
A method of preparing a dry electrode includes arranging at least one interlayer on at least one surface of an electrode current collector to prepare a first stack, arranging a dry electrode film, which has an area larger than an area of the interlayer, on the first stack to prepare a second stack…
An electrode for a secondary battery and a method for manufacturing the electrode are disclosed. According to an embodiment, a first cutting line and a second cutting line, along which an electrode sheet is cut, may cross each other to form a crossing area on the electrode sheet, and in the…
The present invention relates to a slurry transfer device, and a slurry transfer method using the same, which relates to, particularly, a negative electrode slurry transfer device for a secondary battery, and a method of transferring a negative electrode slurry for a secondary battery using the…
This application discloses processing equipment, electrode plate processing equipment, battery processing equipment, and a sheet processing method. The processing equipment includes a rotation roller and a laser assembly. The rotation roller is rotatable around a first axis. An outer peripheral…
A powder for an electrode for manufacturing a dry electrode for a secondary battery, including an active material, a conductive material and a binder, and showing a resistivity of 700 Ω·cm or less when being pressurized under a pressure of 50 MPa. The present disclosure also relates to a method for…
It is preferred that the foreign material removal device for notching a secondary battery according to one example of the present invention comprises: a foreign material confirmation part provided so that in a transport path of an electrode film through a notching process, the upper and lower…
Disclosed is method and device for forming an electrode plate. The method includes: performing tab cutting on a substrate so that the substrate forms a body portion, an edge portion connecting to the body portion, and a plurality of tabs that connect to the body portion but are separated from the…
The main object of the present invention is to provide a method of producing a coated active material capable of forming a coating layer while controlling damage to the active material surface. The present invention solves the problem by providing a method of producing a coated active material, the…
The present invention relates to a lithium/graphite fluoride primary battery prepared by a process comprising the steps of (a) Providing an amount of a graphite fluoride powder; (b) Treating the amount of graphite fluoride powder by mechanical milling, by which step an active material is obtained…
The present disclosure relates to a composite conductive electrode and a manufacturing method thereof, belonging to the field of vanadium battery manufacturing. The method comprises: selecting a carbon felt as a conductive substrate, selecting a conductive resin as the connecting substance for…
Electrochemical cell of button-cell type, comprises an electrode comprising zinc or a zinc alloy, aluminum hydroxide and/or at least one aluminate. An independent claim is also included for manufacturing the electrochemical cell, comprising manufacturing the electrode by mixing zinc powder or…
An active material for a battery has a surface-treatment layer including a compound of the formula (1): MXO k (1) wherein M is at least one element selected from an alkali metal, an alkaline earth metal, a group 13 element, a group 14 element, a transition metal, and a rare-earth element, X is an…
A non-aqueous electrolyte secondary battery 1 includes a flat electrode assembly 10 produced by winding a positive electrode, a negative electrode, and a separator interposed therebetween and forming them into a flat shape, a battery case 11, and a non-aqueous electrolyte. The positive electrode…
An active material for a battery has a surface-treatment layer including a compound of the formula (1): MXO k (1) wherein M is at least one element selected from an alkali metal, an alkaline earth metal, a group 13 element, a group 14 element, a transition metal, and a rare-earth element, X is an…
An electrochemical cell having lithium and iron disulfide as its primary electrochemically active materials and a positive electrode with electrochemically active material selectively deposited thereon for improved service and more efficient utilization of the electrochemically active material of…
The present invention discloses a method for manufacturing an electrode for a battery by filling an active material into a three-dimensional porous metal substrate sheet and cutting said sheet to a certain size, comprising the steps of: pressing the portion to be cut and the periphery thereof in…
The present invention relates to a technique for producing a cathode film having a thin and even thickness and having stable electrical characteristics at a high productivity by an extrusion molding method. That is, the present invention provides an active material for a cathode film comprising a…
The method involves removing an oxide layer if present and any other impurities that may be present from the aluminum collector, preferably using a wet chemical technique, and applying the positive active material directly to the resulting oxide-free surface. The wet chemical technique is conducted…
A composite positive electrode material for use in electrochemical cells. The composite material may comprise a particle of positive electrode material, and a conductive material at least partially embedded within the particle of positive electrode material. The material may comprise a particle of…
The method involves applying a colloidal solution comprising particles and a solvent to a substrate. The solution is dried, the particles in the solution are allowed to remain on the substrate, and the particles are sintered on the substrate. The substrate and the particles have electrodes or…
The present invention provides batteries with low cost, excellent in high rate discharge characteristics (high power characteristics) and high reliability. For example, the present invention provides Ni/MH batteries with low cost, excellent in high rate discharge characteristics (high power…
A drop-fill assembly for providing an electrode for an electrical energy storage device comprises: a support for a current collector; a conduit in flow communication with platform openings and the current collector; and planar sifting screen(s) supported by the conduit generally normal to the…
The method for producing plates for batteries according to the present invention comprises: allowing X-rays to penetrate through a supplied core material, thereby calculating the weight of the core material; filling the core material with an active material; then again allowing X-rays to penetrate…
A negative electrode for a rechargeable battery including: a current collector (1a), a first layer (2a) containing a conductive material to occlude and release lithium ion, the first layer (2a) formed on the current collector (1a), a second layer (3a) containing a metal selected from lithium and…
A method of manufacturing an electrode for a lithium secondary cell capable of attaining excellent charge/discharge characteristics with high discharge capacity comprises steps of forming a first active material layer (21,22,23) consisting of a plurality of layers on a first surface (11a) of a…
An active material for a battery has a surface-treatment layer including a compound of the formula (1): MXO (1) wherein M is at least one element selected from an alkali metal, an alkaline earth metal, a group 13 element, a group 14 element, a transition metal, and a rare-earth element [e.g. Na, K…