Lithium batteries are a kind of lithium metal or lithium alloy as a negative electrode material. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal are very demanding on the environment. The negative electrode of the lithium ion battery is an intercalation structure material such as graphite. In the battery, lithium ions move in the positive and negative electrodes, so it is much safer than the lithium battery. In addition, lithium-ion batteries and lithium polymer batteries, lithium-ion battery electrolyte is liquid, polymer electrolyte electrolyte is gel or solid, more safe.
First of all
Our current lithium battery, according to the scientific name, should be called lithium secondary battery, there is a corresponding negative electrode material, and lithium primary battery is different, primary battery is mainly lithium is the other pole, this type of battery generally uses liquid electrolyte, nowadays Mainly based on LiPF6, LiClO4 dissolved in DMC: EC (v: v = 1:1) in the electrolyte, and some have also been modified, but still a liquid battery.
The polymer lithium battery, from the viewpoint of the internal material of the battery, mainly the internal electrolyte is a polymer, here generally a gel electrolyte and a solid electrolyte.
Lithium polymer batteries and lithium batteries are slightly different in packaging. Lithium batteries are generally made of steel shells (18650 or button type 2320), while lithium polymer batteries are packaged in aluminum plastic packaging film, that is, soft pack batteries.
Of course, lithium batteries are all made of a solid electrolyte such as LiPON, NASICON, perovskite, LiSICON, or a glass electrolyte composed of a high-conductivity ceramic electrolyte or an amorphous material.
Finally, lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium metal batteries are generally non-rechargeable and contain metallic lithium. Lithium-ion batteries do not contain metallic lithium and are rechargeable. Lithium batteries, lithium ion batteries, and lithium polymer batteries are different in principle.