lithium battery 18650 3.7v

　　Inkjet printing of lithium battery electrodes is expected to help lithium battery 18650 3.7v break through

　　Scientists at Peter the Great St. Petersburg Polytechnic University (SPbPU) are developing a technology for printing tiny lithium-ion battery electrodes using inkjet printers. Ongoing research could help power biosensors, wearable electronics and other tiny devices.

　　Lithium-ion batteries produced through conventional technology have high energy density, which means that lithium battery 18650 3.7v can store a large amount of energy in a small volume. Due to this property, they are often used in miniature devices such as smart watches, styluses, etc. Today, advances in this field have reached technological limits, making further size reduction challenging. Therefore, finding new methods of battery manufacturing is key to technological development. Other possible solutions include methods used for integrated circuit production, as well as various printing methods with high-performance advantages.

　　Printing electrodes with given properties requires the screening of synthesis conditions, the composition and viscosity of the printing solution, and printing parameters such as the distance between the droplets and the number of applied layers, which is difficult for experts from different scientific fields. Said it was a difficult task. Electrodes manufactured by inkjet printing do not provide sufficiently high energy density compared to electrodes manufactured by conventional techniques. The observed differences are due to the different materials used, as well as the parameters of the density of the active layer of the fabricated electrodes, the proportion of active materials, etc.

　　Image source: Peter the Great St. Petersburg Polytechnic University

　　"To reduce the difference in energy density, we propose the use of promising enriched cathode materials based on lithium and manganese," said Maxime Maxime, a principal researcher at the institute's "Integrated Laboratory of New Materials and Structures" Compounds to increase energy density." Advanced Manufacturing Technology Center of the National Technical Initiative (NTI) of Petersburg Polytechnic University. "We demonstrated the possibility of making electrodes from this material via inkjet printing. We also found that the energy intensity of the material in the printed electrodes was similar to electrodes made using conventional techniques."

　　The researchers used the synthesized active cathode material to prepare a stable colloidal solution and optimized its rheological parameters for inkjet printing. They selected the conditions for printing the electrodes, studied the electrochemical properties of the printed electrodes, determined the prospects for using this technical approach and the selected cathode material composition. The scientists plan to conduct further research to increase the energy intensity of printed electrodes and lithium-ion battery prototypes.

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