In July 2024, The research group of Mi Hongwei from Shenzhen University published a paper online in Nano letters (impact factor 9.6), “Unlocking 4.9V Quasi-Solid-State Lithium Metal Battery via Solvent Screening. “and Interfacial Manipulation”, this study effectively solved the problems of narrow electrochemical stability window and low ionic conductivity of polymer electrolytes through the efficient…

In July 2024, Professor Qiao Yu’s research group at Xiamen University published a paper on Achieving High-Capacity Cathode Presodiation Agent Via Triggering in Adavanced Materials (impact factor 27.4) online Anionic Oxidation Activity in Sodium Oxide “, Ni element is precisely implanted into the Na site (functional site) in the Na2O framework by high-energy ball milling…

Recently, Professor Zhou Guang Lu from Southern University of Science and Technology published a paper entitled “Cu single atoms regulating nitrogen active-sites of g-C3N4 for sodium” in the internationally renowned journal Energy Storage Materials ion storage “article. In this paper, the regulation of g-C3N4 nitrogen active site by monatomic copper is analyzed, and it is…

In July 2024, Professor Huang Ying’s team published a paper “Peapod-like” Fiber Network online in the journal Nano Letters: A Universal Strategy for Composite Solid Electrolytes to Inhibit Lithium Dendrite Growth in Solid-State Lithium Metal Batteries, “the study” reports a general strategy for inhibiting the growth of lithium dendrites in solid lithium metal batteries with…

Lecture 1 (mixing) Slurry mixing is the process of adding active materials, conductive carbon black, dispersants, binders, additives, and other components to a mixing equipment in a certain proportion and order. Under the mechanical actions such as turning, kneading, and shearing generated by the equipment, these components are mixed together to form a uniform, stable…

The Principle of Lithium-ion Batteries Note: EC and DEC are electrolyte solvents. In the diagram, the cathode is lithium cobalt oxide, and the anode is graphite. With Li+ as the ion conduction medium, the reaction of lithium ion insertion and extraction occurs between the anode and cathode, also known as a “rocking chair battery”. The…

Add Your Heading Text Here Provide viscosity to ensure that particles in the slurry do not easily settle and maintain slurry stability Provide viscosity for good fluidity Provide viscosity to facilitate effective dispersion of materials Provide adhesive force to ensure good contact between active materials, conductive carbon, and current collectors. Provide adhesive force to ensure…

The function of adhesives Provide viscosity to ensure that particles in the slurry do not easily settle and maintain slurry stability Provide viscosity for good fluidity Provide viscosity to facilitate effective dispersion of materials Good adhesion to metal foils and will not peel off the metal foils due to the use of electrolyte, charging, and…

Electrode Shedding Negative electrodes are prone to powder shedding Main reason：1.Formula issues,insufficient bonding strength leading to material loss；2.Excessive baking temperature,rapid solvent evaporation resulting in SBR bleeding.Insufficient adhesive between the material and the current collector leading to material loss Coating Scratch Scratches on the coating are often manifested as one or more unpainted marks on the…

Coating Basics Purpose: To uniformly coat a fluid slurry onto the surface of a metal foil, dry it, and produce a battery electrode Principle: The coating roller rotates to carry the slurry, and the amount of slurry transferred is adjusted by adjusting the gap between the doctor blade and the roller. The relative rotation of…