Planetary mills are highly efficient equipment for grinding solid materials to micro- and nano-sizes. This type of mill is called "planetary" because of the unique configuration of rotation of the grinding elements, reminiscent of the movement of planets around the Sun and their own axis.
In a planetary mill, a beaker containing material and grinding balls are placed in a rotating drum. The drum, in turn, rotates around its axis, simultaneously performing a circular motion similar to orbital motion. This double rotation creates strong centrifugal forces that cause the balls to collide with the material particles at high speed, effectively crushing them to the required size.
In the field of electrochemistry, planetary mills are widely used to prepare electrode materials for lithium-ion and sodium-ion batteries. Refining to nanoscale sizes significantly increases the effective surface area of materials, which helps improve their electrochemical characteristics, such as capacity and recharge rate. In addition, the use of planetary mills improves the uniformity and stability of the electrodes, which is important for increasing the reliability and service life of batteries.
Our laboratory uses planetary mills PULVERISETTE 7 premium line and BM6 Pro, which represent the pinnacle of innovation and quality in the field of micro- and nano-grinding of materials. The PULVERISETTE 7 premium line mill is distinguished by its high efficiency and precision, achieving exceptional grinding fineness thanks to an advanced control system and optimized rotation dynamics. On the other hand, the BM6 Pro stands out for its reliability and durability, ensuring a stable grinding process even when processing the hardest materials. Mills also differ in loading volume; in PULVERISETTE 7 you can load from 0.5 to 5 grams of material, while for BM6 Pro the loading weight ranges from 20 to 200 g.