5results about How to "Big gap" patented technology

The present application relates to the technical field of lithium battery processing, and particularly relates to an intelligent integrated equipment for lithium battery negative electrode material production, a claw tip of a material rake can be inserted into a groove of a receiving plate, so that the claw tip of the material rake is lower than the lowermost negative electrode sheet, so that the material rake can smoothly push the lowermost negative electrode sheet into the crushing roller set, avoiding many problems caused by the inability to push the lowermost negative electrode sheet to move in the prior art, and meanwhile, the claw tip of the material rake forces the receiving plate to rotate during the movement of the manually pushed material rake towards the protective cover, so that the material rake can smoothly push the negative electrode sheet to move towards the protective cover, and the operator does not need to deliberately adjust the standing position and force direction, which is beneficial to improving the convenience of operation; the intelligent integrated equipment for lithium battery negative electrode material production comprises a protective cover, a soft rubber block, a receiving plate and a post-processing assembly; the protective cover is detachably connected to a connecting plate and located above the crushing roller set.

This invention relates to the field of transfer paper coating technology, specifically to a thermal sublimation transfer paper coating and its preparation method. The invention first coats a photothermal dual-curing polyurethane emulsion onto a substrate paper, curing it to form a hydrophobic layer. The photothermal dual-curing polyurethane emulsion is composed of an epoxy-terminated silicone polyurethane modified with hydroxyl-terminated polydimethylsiloxane and capped with propylene glycol diglycidyl ester, and a double-bond capped polyurethane obtained by chain extension with glycerol monoglycidyl ether and capping with hydroxyethyl acrylate. Next, an ink-absorbing coating containing mercapto-modified silica, acrylamide monomer, and sodium carboxymethyl cellulose is coated onto the hydrophobic layer, cross-linking to form an ink-absorbing layer. Finally, a polyvinyl alcohol solution is coated onto the ink-absorbing layer to form a surface layer. The thermal sublimation transfer paper coating designed by this invention exhibits strong adhesion and excellent transfer effect.

The application provides a method for preparing a low-cost positive electrode material of a potassium ion battery by using iron elements, and belongs to the field of new energy materials.The specific implementation steps of the method are as follows: (1) performing solvent thermal treatment on raw material powder; (2) performing pre-calcination on the powder obtained in step 1; (3) performing tabletting treatment on the product obtained in step (2); and (4) performing high-temperature calcination on the product obtained in step (3).The positive electrode material prepared by the method has a non-layered structure, and has the advantages of simple process, low cost and suitability for large-scale production, and the electrochemical performance of the positive electrode material applied to the potassium ion battery has great research value.

The application discloses a video playing method and system, an electronic device and a storage medium. The method comprises the following steps: during the playing of a target video, whenever it is monitored that a user drags the playing progress of the target video, based on a current position time point and a thumbnail interval time, a current nearest thumbnail is found out from each thumbnail in a sprite of the target video in real time; based on a hash value corresponding to the current nearest thumbnail and generated in advance and hash values corresponding to multiple IDR frames of the target video, the similarity between the current nearest thumbnail and each IDR frame is calculated; an IDR frame with the greatest similarity to the current nearest thumbnail is determined as a current target video frame, and a thumbnail of the current target video frame is displayed in a playing interface of the target video; when it is monitored that the user ends this time of playing progress dragging, video data of the target video is acquired from the current target video frame and is decoded and played.