Introduction to polymer lithium battery and lithium battery

What is a polymer lithium battery? The so-called polymer lithium battery refers to a lithium battery that uses a polymer as an electrolyte. It is divided into two types: semi-polymer and all-polymer. Semi-polymer refers to coating a layer of polymer (usually PVDF) on the isolation membrane to make the cell's adhesion stronger, the battery can be made harder, and the electrolyte is still liquid electrolyte. The all-polymer refers to the use of polymer to form a gel network inside the cell, and then inject the electrolyte to form an electrolyte. Although all-polymer batteries still use liquid electrolyte, the amount is much smaller, which greatly improves the safety performance of lithium batteries. As far as I know, only SONY is mass producing all-polymer lithium batteries. From another aspect, polymer battery refers to the use of aluminum-plastic packaging film as the outer packaging of lithium batteries, also commonly known as soft-pack batteries. This kind of packaging film is composed of three layers, namely PP layer, Al layer and nylon layer. Because PP and nylon are polymers, this kind of battery is called polymer battery. Lithium battery Lithium battery is a type of battery that uses lithium metal or lithium alloy as negative electrode material and uses non-aqueous electrolyte solution. In 1912, the lithium metal battery was first proposed and studied by Gilbert N. Lewis. In the 1970s, M.S. Whittingham proposed and began to study lithium batteries. Due to the very active chemical properties of lithium metal, the production, storage and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have now become the mainstream. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium batteries. Lithium batteries do not contain metallic lithium and are rechargeable. The fifth generation of rechargeable batteries, lithium metal batteries, was born in 1996, and its safety, specific capacity, self-discharge rate and performance-price ratio are superior to those of lithium batteries. Due to its own high-tech requirements, only a few companies in a few countries are processing this lithium metal battery. Disclaimer: The articles published on this website are all from the Internet. If there is any infringement, please contact to delete it. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.