A process for modifying a surface chemistry of a cathode active material includes providing a powder of the cathode active material, wetting the powder of cathode active material with an efficient amount of a solution to form a mixture, and baking the mixture to obtain a surface modified cathode…
A method for manufacturing LMFP composite positive electrode particles includes the steps of: placing a plurality of lithium ion conductor particles and LMFP particles, a carbon source and a first dispersant into a ball mill for mixing to form a mixed slurry, wherein each of the lithium ion…
Systems and methods are provided for carbon additives for direct coating of silicon-dominant anodes. An example composition for use in directly coated anodes may include a silicon-dominated anode active material, a carbon-based binder, and a carbon-based additive, with the composition being…
A cathode material, and a preparation method therefor and the use thereof. The preparation method comprises the following steps: (1) mixing a vanadium source, a complexing agent and a high-molecular polymer with an organic solvent to obtain a mixed solution; (2) respectively performing an…
An electrode notching apparatus includes a notching unit configured to form an electrode tab at a non-coated portion of an electrode sheet; a rewinder roller where a connecting sheet is wound; a splicing table whereon the electrode sheet and the connecting sheet are placed a camera unit configured…
A positive electrode material includes a first positive electrode active material and a second positive electrode active material. The first positive electrode active material has an average particle diameter (D) of 10 μm to 30 μm and the second positive electrode active material has a smaller…
This application provides a negative-electrode active material, a preparation method thereof, a secondary battery and an apparatus. The negative-electrode active material includes a carbon matrix, boron and iron, where the iron is distributed in the interior of the carbon matrix. Secondary…
The present disclosure relates to the technical field of anode material of lithium ion battery, and discloses a graphitized porous silicon-carbon anode material, a preparation method thereof, and a lithium ion battery. The silicon-carbon anode material comprises a core and a carbon coating layer…
This application relates to an electrode active composition, a preparation method thereof, an electrode, a battery, and an apparatus. The electrode active composition includes: a first component, the first component being lithium cobalt oxide particles; and a second component, the second component…
The present disclosure discloses a method for coating a lithium nickel cobalt manganese oxide cathode material, and relates to the technical field of the synthesis of cathode materials. The present disclosure provides a method for coating a lithium nickel cobalt manganese oxide cathode material…
A positive electrode material includes secondary particles formed from primary particles. The positive electrode material satisfies the following relational expression: 15%≤(Dv50a−Dv50b)/Dv50b≤80%, where Dv50a represents Dv50 directly measured by a laser particle size analyzer for the positive…
An electrode sheet drying equipment, an electrode sheet manufacturing system including the same, and an electrode sheet drying method including an air-floating roller disposed downstream of a drying oven, and the air-floating roller is configured to spray hot air through multiple air spraying holes…
Systems and methods are provided for carbon additives for direct coating of silicon-dominant anodes. An example composition for use in directly coated anodes may include a silicon-dominated anode active material, a carbon-based binder, and a carbon-based additive, with the composition being…
The method includes mixing and heat-treating carbon nanotubes, a water-soluble polymer dispersant, and an iron (Fe) precursor to form an iron oxide-carbon precursor; mixing and calcining a lithium precursor and the iron oxide-carbon precursor at a temperature of 500° C. or higher to form…
A process for the production of electrical or electronic components or circuits on a flexible flat or three-dimensional carrier by applying a liquid or pasty starting material for a structured or unstructured electrical or electronic functional layer and subsequent drying, sintering and/or…
The present disclosure discloses a blended ternary positive-electrode material, a preparation method thereof and a lithium ion battery, and relates to the field of lithium battery technologies. A temperature-sensitive precursor type material is taken as a raw material, a large-particle precursor, a…
Provided is a flexible air supply damper system for preventing an overdrying-caused defect of a secondary battery electrode plate, the flexible air supply damper system including: a fluid supply unit supplying a fluid; a heating unit heating the fluid supplied through the fluid supply unit; a…
A ribbon carrier assembly, a welding device, and a welding method for preprocessing between a battery sheet and a ribbon are disclosed. The carrier assembly includes a carrier seat; a carrier body, rotatably connected to the carrier seat; and a driving assembly, connected to the carrier body and…
The present invention relates to a device for removing scraps after laser notching of a film forming unit of a secondary battery for an electric vehicle, and to completing a jelly roll in which flags are not overlapped by clearly removing particles generated during notching jointly with accurately…
A method and apparatus for controlling the atmosphere of a multizone calcination (firing) furnace for production of high-quality nickel-rich cathode material for lithium-ion and solid-state batteries. A high-quality oxygen-rich atmosphere is maintained to ensure the quality of the cathode material…
A method for manufacturing an electrode includes the steps of (a) laminating an active material layer on the surface of the current collector; and (b) removing a portion of the active material layer by irradiating a laser beam on the surface of the active material layer. Before irradiating the…
Described herein is a process for the manufacture of a fluoride doped cathode active material, where said process includes the steps of
A strip diverting mechanism includes a negative pressure unit and an air discharge unit. The negative pressure unit and the air discharge unit are arranged opposite each other, and a gap through which a strip passes is formed between the negative pressure unit and the air discharge unit. The…
This secondary battery electrode is provided with a core material configured from a metal foil that softens at less than or equal to 200° C. and an electrode mixture sheet which is bonded on the surface of the core material. The electrode mixture sheet includes an active material and a fibrous…
Disclosed are a ternary single crystal positive electrode material, a preparation method therefor and use thereof. The preparation method comprises the following steps: mixing a ternary polycrystalline micropowder, raising a temperature, carrying out a primary sintering, and lowering the…
Disclosed are a ternary single crystal positive electrode material, a preparation method therefor and use thereof. The preparation method comprises the following steps: mixing a ternary polycrystalline micropowder, raising a temperature, carrying out a primary sintering, and lowering the…
A process for converting avocado peels into hard carbon-based anodes for sodium ion batteries and a hard carbon material formed according to that process. The avocado peels are simply washed and dried, and then carbonized using a high temperature conversion step. Electrochemical measurements…
Provided is a flexible air supply damper system for preventing an overdrying-caused defect of a secondary battery electrode plate, the flexible air supply damper system including: a fluid supply unit supplying a fluid; a heating unit heating the fluid supplied through the fluid supply unit; a…
Systems and methods are provided for high volume roll-to-roll direct coating of electrodes for silicon-dominant anode cells. A slurry that includes silicon particles and a binder material may be applied to a current collector film, and the slurry may be processed to form a precursor composite film…
A method of forming a lithium or sodium foil for use as an electrode involves imposing a surface texturing that is predominately the {110} or {100} crystallographic orientation. For a Li {110} foil, a raw foil with a thickness of about 600 μm is heated to about 90° C. to randomize the…