Battery recycling line From the perspective of the materials inside the battery

What is the 18650 Battery and why is it generally rated low?

First, a concept-polymer lithium battery. From the perspective of the materials inside the battery, a polymer lithium battery is a lithium-ion battery that uses a polymer as an electrolyte, divided into “Semi-polymer” and “Full-polymer”. “Semi-polymer” refers to a layer of polymer (usually PVDF) on the membrane, so that the battery adhesion is stronger, the battery is harder, the electrolyte is still a liquid electrolyte. “All-polymer” refers to a polymer used to form a gel network in a cell, which is then injected with an electrolyte to form an electrolyte. Although “All-polymer” batteries still use liquid electrolytes, they are in much smaller quantities, making the lithium-ion battery much safer. As far as I know, only Sony is currently mass producing “All polymer” lithium-ion battery.

Polymer batteries, on the other hand, are those that use aluminum-plastic packaging for external lithium-ion batteries, often referred to as flexible packaging batteries. This film consists of three layers, PP, Al and nylon. Because polypropylene and nylon are polymers, the battery is called a polymer battery.

From a thematic point of view, it should refer to the latter -- so-called lithium-ion battery that use polymer packaging -- while the corresponding 18,650 batteries use steel shells for their outer packaging. Many domestic manufacturers advertise their batteries as polymer, which means the same thing, don't be fooled by them

In order to save time and cost, we set up an important standard lithium-ion battery model, in which 18 denotes a diameter of 10mm, and 18 lithium-ion battery a diameter of 10mm, 65 indicates a data length of 65 mm, and 0 indicates a cylindrical battery. Sony has always wanted to produce lithium-ion battery, such as alkaline cell technology, with certain industrial development standards, such as AA batteries, AA batteries, which are basically the same everywhere in the world. However, since one of the main advantages of lithium-ion battery is that students can analyze customer needs and design shapes and structures at the same time, it is not possible to have such a national standard, so there's basically only 18,650, the standard model for the lithium-ion battery industry. Other needs according to the target customer service needs to design.