Sodium-ion battery raw material mixing device capable of realizing quantitative proportioning and operation method
The invention relates to a sodium ion battery raw material mixing device capable of realizing quantitative proportioning and an operation method, the sodium ion battery raw material mixing device comprises a proportioning and mixing device and a finished material conveying device, the proportioning and mixing device is fixed on the top side of the finished material conveying device; and the proportioning and mixing device consists of a mixing machine body, a proportioning upper protecting cover, a proportioning quantity control switch, a mixing start-stop switch and a mixing cabin protecting plate. According to the sodium ion battery raw material mixing device, the arrangement of sodium ion battery raw material mixing is optimized, a traditional mixing mode is changed and improved into a mixing device with random characteristics for mixing, the mixing effect is more uniform, the aggregation phenomenon is not prone to occurring again, in addition, jolt in the transportation process is reduced, a more stable conveying mechanism is arranged in a matched mode, and the production efficiency is improved. Popularization and use are facilitated.
The embodiment of the utility model provides a sodium battery welding tool, and relates to the field of battery preparation tools. The sodium battery welding tool comprises a welding base and two ultrasonic welding heads, and the two ultrasonic welding heads are both located above the welding base. The two ultrasonic welding heads can move synchronously and abut against or get away from the welding base, and the two ultrasonic welding heads are connected with the same energy converter. According to the sodium battery welding tool in the embodiment, the positive electrode lug and the negative electrode lug of the sodium ion battery can be welded to the switching piece at the same time, the equipment investment cost in the production process is reduced, and the production efficiency is improved.
Preparation method and application of micron-scale iron-based Prussian blue material
The invention relates to a preparation method and application of micron-scale iron-based Prussian blue. The method is to dissolve polyacrylamide and sodium ferrocyanide into a deionized aqueous solution to obtain a first salt solution; Dissolve in deionized aqueous solution, and add trisodium citrate to obtain the second salt solution; pour the second salt solution into the first salt solution, stir and let stand to obtain a blue precipitate, wash and dry the precipitate Get Iron-Based Prussian Blue Granules. The Prussian blue prepared by the method can be used as the positive electrode material of the sodium ion battery. The addition of the polyacrylamide fusion agent of the present invention is beneficial to the agglomeration and growth of Prussian blue particles, increases the particle size of secondary particles, reduces the process difficulty of collecting and cleaning materials, and also improves the collection efficiency of products; the prepared Prussian blue is used The electrochemical performance of sodium storage as the positive electrode material of the sodium ion battery is improved, and the compacted density of the powder is improved.