2results about How to "Will not affect the production process" patented technology

The invention discloses a strip supply system, comprising: a mounting plate; the two winding drums are rotationally mounted on the mounting plate and are used for supplying the strip materials respectively; the reel switching device is mounted on the mounting plate and is suitable for connecting the rear end of the strip supplied from one reel to the front end of the strip supplied from the other reel, so that the supply of the strip can be switched from one reel to the other reel; and the strip buffering device is mounted on the mounting plate, is positioned on the downstream of the winding drum switching device and is used for buffering and tensioning the strip supplied from the winding drum. In the process that the winding drum switching device continues to continue to supply the strip, the strip temporary storage device continues to supply the strip so as to guarantee continuous supply of the strip. According to the strip supply device, strip supply can be automatically switched between the two winding drums, the strip supply winding drums do not need to be replaced after shutdown, the strip supply continuity is guaranteed, the strip supply efficiency is improved, and the subsequent production process cannot be affected.

This invention belongs to the field of lithium-ion battery technology, specifically relating to a Ni-doped molybdenum carbide / lithium oxalate composite lithium replenisher. The invention first obtains a Ni molecular catalyst through a liquid-phase reaction of triethanolamine and nickel chloride in ethanol, followed by calcination with Mo₂C to form a composite Ni-doped molybdenum carbide catalyst. Then, using an anti-solvent crystallization method, the lithium replenisher solution is dropwise into an organic solvent containing the catalyst, stirred, and then vacuum dried. The lithium replenisher particles adhere to the catalyst surface and / or pores, forming the composite lithium replenisher. This composite lithium replenisher, by combining lithium oxalate with the Ni-doped molybdenum carbide catalyst, utilizes the highly active catalytic sites, excellent electronic conductivity, and synergistic catalytic effect of Ni-doped molybdenum carbide to reduce the decomposition voltage of lithium oxalate, improve its conductivity and decomposition rate, thereby significantly improving the battery's initial efficiency, capacity, and cycle performance. Furthermore, the preparation process is simple, highly compatible, and has good commercial application prospects.