TRIS buffer: Empowering multi-layer core-shell silicon carbon negative electrode materials for innovative upgrading

With the rapid development of lithium-ion battery technology, negative electrode materials have always been a research hotspot in the field of research as a key factor affecting battery performance. Among them, the silicon carbon negative electrode material with multi-layer core-shell structure has attracted much attention for its excellent performance, and TRIS buffer plays an indispensable role in the preparation of this material.

TRIS buffer: a powerful assistant for preparing silicon carbon negative electrodes

TRIS buffer, as an important chemical reagent, plays a crucial role in the preparation process of multilayer core-shell structured silicon carbon negative electrode materials. When preparing the material, the silicon particles need to be dispersed in Tris buffer solution first. Tris buffer provides a stable acid-base environment for the reaction, which is crucial for the smooth progress of subsequent reactions. In such a stable environment, the addition of dopamine hydrochloride enables a series of chemical reactions to proceed in an orderly manner. Dopamine hydrochloride undergoes polymerization reaction under specific conditions, forming a uniform coating layer on the surface of silicon particles, which lays the foundation for constructing multi-layer core-shell structures.

By dispersing silicon particles in Tris buffer solution for reaction, the thickness and uniformity of the coating layer can be effectively controlled. A uniform coating layer can better buffer the volume changes of silicon during charging and discharging processes, and improve the structural stability of the material. At the same time, the use of Tris buffer helps to improve the reproducibility of the reaction, ensuring consistent material properties for each batch of preparation, providing the possibility for large-scale production.

Optimize the process and improve material performance

After obtaining the intermediate, disperse it in solvent B to obtain a suspension, and then add chelating agent and dopant in solvent C in sequence and mix well. Add titanium source dropwise for reaction to obtain the precursor liquid. After adding precursor droplets to the suspension and undergoing a series of operations such as water bath reaction, the composite material also needs to be treated with carbon coated particle precursor. During this process, the stable environment created by TRIS buffer still plays a role, ensuring the precise progress of each step.

After a series of TRIS assisted preparation processes, the resulting multi-layered core-shell structured silicon carbon negative electrode material has many excellent properties. It has multi-level buffering function, which can effectively cope with the huge volume changes of silicon during the insertion and extraction of lithium ions, reduce material pulverization, and extend the service life of the battery. At the same time, the material has dual lithium storage capacity, which increases the storage capacity of lithium ions and thus enhances the energy density of the battery. In addition, the construction of its continuous conductive network accelerates the transmission speed of electrons, reduces the internal resistance of the battery, and enables the battery to have better rate performance.

Looking ahead to the future, TRIS supports the development of batteries

With the rapid development of new energy vehicles, portable electronic devices and other fields, higher requirements have been put forward for the performance of lithium-ion batteries. The silicon carbon negative electrode material with multi-layer core-shell structure is regarded as a powerful candidate for the next generation of lithium-ion battery negative electrode materials due to its excellent performance. As an important reagent in the preparation process of this material, TRIS's importance is self-evident.

Hubei Xindesheng Material Technology Co., Ltd., as a professional manufacturer of TRIS and other biological buffering agents, has unique methods and insights for controlling various indicators of products, ensuring that customers receive products with excellent performance and all indicators meet relevant standards. Desheng adheres to the concept of "quality first, technology leading" in the production of every product. Customers at home and abroad can rest assured to purchase. If you have any related procurement needs in the near future, please feel free to contact me at any time!