What are the classifications of lithium battery shells?

Classification of lithium battery shell 1. Steel shell lithium battery Early angular lithium battery is mostly steel shell, which is mostly used for mobile phone battery. Later, due to the low weight ratio of steel shell and poor safety, it is gradually replaced by aluminum shell and soft packaging lithium battery. At present, there are still some small factories using steel shells to make B-product mobile phone batteries and some low-value-added MP3 and MP4 batteries. But among column-type lithium batteries, there is another situation. Most manufacturers use steel as the battery shell material. Because of the physical stability of steel materials, the pressure resistance is much higher than that of aluminum shell materials. After structural optimization, the safety device has been placed inside the battery core, and the safety of the steel shell cylindrical battery has reached a new level. Don’t you see that most of the current notebook computer battery cells use steel shell as the carrier . 2. Aluminum-shell lithium battery Because of its lighter weight and slightly better safety than steel-shell lithium batteries, aluminum-shell lithium batteries have become the main force of mobile phone batteries. Due to the relatively high cost of mold opening of aluminum shells, there are fewer models, and the minimum order quantity requirements are higher. Important models are concentrated in some common mobile phone battery models. 3. Soft-packed lithium storage battery Soft-packed lithium storage battery is gradually expanding its market share due to its light weight, low mold opening cost, and high safety. It is mainly used in digital products, and is now gradually developing into markets such as mobile phones, notebook computers, and power tools. It is foreseeable that in the next few years, the market share of flexible packaging lithium batteries will continue to expand steadily, and the application range will be wider. Due to the outsourcing of aluminum-plastic film, the resistance to pressure is very weak. It is limited to the current technical and environmental constraints of domestic packaging plants and the proportion of bulging It is still relatively high. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: What are the differences between lithium batteries and nickel-metal hydride batteries?