30results about How to "Easy to realize industrial scale-up production" patented technology

The invention discloses a pre-lithium negative electrode material, a preparation method thereof, a pre-lithium negative electrode and a pre-lithium battery. The method comprises: 1) dispersing the negative electrode active material and metal lithium in an organic solvent to obtain a mixed solution; 2) using the mixed solution to carry out hydrothermal reaction to obtain a pre-lithium negative electrode material. The present invention utilizes a hydrothermal high-temperature and high-pressure environment to fully and evenly embed lithium metal into the structure of negative electrode active materials such as graphite materials, and has a good pre-lithium effect. Using the pre-lithium negative electrode material as a negative electrode active material for lithium-ion batteries can Effectively reduce the consumption of active lithium ions in the positive electrode and improve the electrochemical performance of the negative electrode, especially the first Coulombic efficiency.

The invention discloses a method for replenishing lithium in a lithium ion battery through a positive electrode. The method includes: 1) On both sides of the positive electrode current collector, the positive electrode slurry and the passivated lithium powder slurry are sequentially coated, dried, and rolled, and the positive electrode sheet material layer is sequentially formed on both sides of the surface of the positive electrode current collector and a passivated lithium layer to obtain a positive electrode precursor sheet; 2) process the positive electrode precursor sheet with a nitrogen gas flow, and the nitrogen reacts with the passivated lithium layer on the surface to form a positive electrode sheet; 3) assemble the positive electrode sheet The battery cell is assembled to obtain the battery, which is charged and discharged to realize the lithium replenishment of the battery. The pre-lithiated positive electrode material of the present invention can be produced under conventional process procedures and conventional temperature and humidity, and is easy to realize industrial scale-up production.

The invention discloses a microalgae composite living bait for raising shellfish seedlings and a production method thereof. The microalgae composite living bait is composed of the following microalgae species cultured and mixed in proportion to the number of cells: Chaetoceros mourii 15%‑20%, Coccolithia 20%‑25%, Isochrysis globosa 5%‑10%, Haematococcus pluvialis 15%‑20%, Chlorella pyrenoidosa 25%‑ 30% and P. subcordiformis 10%‑15%, with a total density of 1×105‑5×105 cells / mL. The production method is as follows: (1) use a photobioreactor to culture the microalgae species separately to obtain a microalgae liquid with a culture density of 1×109-5×1010 cells / mL; (2) prepare the microalgae liquid The microalgae composite living bait is formulated according to the ratio of the number of cells, and the microalgae composite living bait with a total density of 1×105-5×105 cells / mL is obtained. In the present application, a variety of microalgae cells are made into compound living bait, which has balanced nutrition, can effectively improve the survival rate of shellfish seedlings, and reduce the incidence rate thereof.