Improving the energy density of battery system is a systematic project, which can be started from the development of new materials, optimization of battery structure, improvement of manufacturing process, etc.

Reinforced lithium battery core material

With different organic chemicals management systems, you can change specific energies. For example, in the cathode materials of lithium ion batteries, the occupancy rates of nickel, cobalt and manganese are adjusted to increase the occupancy rate of nickel, thus improving the specific energy of lithium ion batteries. On the cathode material of lithium ion battery, the volume of silicon/carbon polymer material can reach 4200 mah/g, while the basic theoretical capacity of lithium ion battery is only 372 mah/g. In addition, many lithium ion batteries have volume damage in the whole process of primary battery charging, and some lithium ion batteries are damaged in the whole process of the whole cycle system. Therefore, the filling technology of lithium in lithium ion batteries or lithium ion battery electrolyte is also the main research content of new batteries.

Optimize the layout structure

At present, most battery packs are the construction methods of various fixed cards and support elements in various fixed battery packs. Many structural elements have a large amount of volume and quality, which greatly reduces the efficiency of overall integration, adjusts the layout structure of battery packs, simplifies various mounting support point structures, and enables lithium ion battery packs to have a high volume in relatively limited room space. This year's ctp (celltopack) plan has changed the structure of the lithium-ion touch battery pack in the past, forming a standardized battery pack through several large space lithium-ion battery packs, and then intelligently stacking it into a larger battery control module. These programs not only reduce the total number of components, but also greatly improve the space utilization and specific energy. Therefore, simplifying the structure of rechargeable battery pack and forming the secondary integration scheme of lithium ion battery pack have become the technical direction chosen by many enterprises.