EVE Energy had 176 patents in batteries during Q3 2023. EVE Energy Co Ltd has filed a patent for an extrusion head and molding device, along with a method for molding and preparation. The extrusion head consists of a housing with a through extrusion channel, divided into a transition cavity and a molding cavity. The diameter of the inner wall of the transition cavity gradually decreases in the extrusion direction. Additionally, the company has also patented an electronic device and its manufacturing method. The device includes a first housing with a bottom plate and a first enclosure wall, and a second housing with a top plate and a second enclosure wall. The cover plate plugs an exit hole on the top plate, and one of the cell’s tabs is connected to the cover plate while the other tab is sandwiched between the enclosure walls. GlobalData’s report on EVE Energy gives a 360-degreee view of the company including its patenting strategy. Buy the report here.

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EVE Energy grant share with batteries as a theme is 65% in Q3 2023. Grant share is based on the ratio of number of grants to total number of patents.

Recent Patents

Application: Extrusion head for molding pole piece and molding device comprising same, and molding method and preparation method therefor (Patent ID: US20230268479A1)

The patent filed by EVE Energy Co Ltd describes an extrusion head for molding a pole piece, as well as a molding device and methods for molding and preparing an electrode sheet. The extrusion head comprises a housing with a through extrusion channel divided into a transition cavity and a molding cavity. The inner wall of the transition cavity has a gradually reduced diameter along the extrusion direction. The extrusion head housing is divided into a tapered section and a straight section, with the transition cavity located in the tapered section and the molding cavity in the straight section. The transition cavity has a stepped structure with a gradually reduced diameter. The extrusion head is designed to be used in a molding device, which is a screw extruder. The extrusion device housing of the molding device is detachably connected to the extrusion head. The molding method involves feeding an electrode sheet mixture into the extrusion device housing, mixing it uniformly, conveying it to the extrusion head, and subjecting it to extrusion molding. The preparation method for an electrode sheet includes mixing an active material, a binder, and a solvent to form an electrode sheet mixture, and then subjecting it to molding, drying, and blanking to obtain the electrode sheet. The active material can include conductive carbon black, acetylene black, Ketjen black, carbon nanotubes, manganese dioxide, carbon fluoride, or FeS2. The binder is a polytetrafluoroethylene emulsion, and the solvent is isopropanol or an aqueous solution of isopropanol. The extrusion frequency and temperature in the molding device can be adjusted. The drying process is performed in a blast oven, and the blanking is done in an automatic cutting and stamping device. The resulting electrode sheet has a specific thickness and width. Overall, the patent describes an extrusion head, molding device, and methods for efficiently and accurately molding electrode sheets for various applications.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.