With the continuous improvement of the endurance requirements of new energy vehicles PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC iron removal is also developing towards high energy density. Although the traditional graphite anode materials are mature and low cost, the development of energy density has been close to its theoretical maximum (372mAh/g).
Silicon has gradually entered the field of vision with its ultra-high gram capacity (4200mAh/g) and low lithium impingement potential (0.4V), but the significant volume expansion (~300%) of silicon negative electrode during charge and discharge greatly limits the progress of its large-scale commercialization. In order to overcome these defects, researchers mostly use composite technology to buffer the volume expansion of silicon, among which PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC iron removal carbon material due to its small volume change in the process of charge and discharge, good cycle stability, high conductivity advantages, Is often used as the preferred substrate for composite with silicon.
The in situ dilatation analyzer developed and produced by science and technology compared the dilatation behavior of the silicon carbon system soft pack cell with different silicon content, and revealed the correlation between the volume expansion and capacity attenuation of the silicon carbon system cell. It also provides research ideas for the subsequent optimization and modification of PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC, and helps to promote the commercialization process of silicon-based negative electrode.
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