30results about How to "Solve gas production" patented technology

The invention discloses a surface-modified nickel-based electrode material, which comprises a nickel-based material precursor, lithium acetate and a modification substance, wherein the modification substance is an oxygen ion conductor material; the oxygen ion conductor material is yttrium oxide stabilized bismuth oxide, Any one of dysprosium oxide stabilized zirconia or samarium oxide stabilized tin oxide or a combination of the two; the quality of the oxygen ion conductor material accounts for 0.01-5% of the total electrode material; nickel, The mass ratio of cobalt and manganese is 0.6~0.9:0.05~0.2:0.05~0.2. In the present invention, the nickel-based electrode material can suppress Li after being modified by the oxygen ion conductor + / Ni 2+ The disorder of the material improves the initial Coulombic efficiency of the material, and at the same time, the synergistic effect of the vacancies of lithium and nickel in the delithiation process aggravates the instability of oxygen, while the oxygen ion conductor just provides oxygen ions in the process of modifying nickel-based materials. vacancies, thereby improving the structural stability of the material.

The invention discloses a flexible water-based zinc-ion battery, which includes a positive electrode layer, a negative electrode layer, a current-collecting layer, a diaphragm and an aqueous electrolyte. The current-collecting layer includes a gas-permeable layer and a base layer, and the base layer has at least one opening. The open-pore structure of the air-permeable layer and the base layer solves the problem of gas production and electrolyte drying during the battery cycle, making the gaseous water inside and outside the battery reach a state of cyclic exchange and dynamic equilibrium, which greatly improves the cycle performance of the battery. Moreover, the assembled flexible aqueous zinc-ion battery has the advantages of light weight, thin thickness, low cost, green environmental protection, high safety, good rate performance and high power density, and its excellent bending performance and flexibility can also meet bending at different angles. It is suitable for large-scale application and industrial production in the field of wearable electronic devices.

The invention relates to a culture method of mixed bacteria, in particular to a culture method for EM. The simple culture method for EM comprises the following steps: A, preparing culture solution, and filling into a plastic square barrel with a ventilating cover; B, inoculating bacillus; C, culturing under a closed condition for 24 hours; D, inoculating composite lactic acid bacteria, saccharomycetes and photosynthetic bacteria; and E, culturing under a closed condition. In the invention, a cheap plastic square barrel which is common on market is used as an EM culture container; generally, culture can be performed at normal temperature; culture and use on site can be realize; and the method has the advantages of environment protection, flexible production operation, production and use cost conservation and the like.

The invention belongs to the field of energy storage study, and particularly relates to a lithium titanate negative electrode material and a preparation method thereof. The lithium titanate negative electrode material comprises a core structure and a shell structure, wherein the shell structure uniformly coats the surface of the core structure; the thickness of the shell structure is h, and the h is smaller than or equal to 100nm. The preparation method of the lithium titanate negative electrode material comprises the following steps that 1, cladding layer slurry containing graphene is prepared; the slurry is sprayed into a cladding chamber; formed particles have electric charges, and the carried charge of each particle is Q1; 2, the core structure ingredients are sprayed into the cladding chamber, so that the surface of the core structure ingredients has the electric charges opposite to those of the particles in the step 1, and the carried charge of each particle is Q2; 3, cladding reaction is performed: the airflow in the cladding chamber is regulated, so that the particles in the step 1 uniformly coat the surface of the core structure in the step 2; 4, aftertreatment is performed to obtain a finished product of lithium titanate particles, so that the lithium titanate negative electrode material with excellent performance is prepared.