-What are the advantages and disadvantages of lithium-ion batteries and lithium-polymer batteries

What are the advantages and disadvantages of lithium-ion batteries and lithium-polymer batteries
author:enerbyte source:本站 click143 Release date: 2024-01-09 09:42:00
abstract:
Lithium ion batteries are a type of negative electrode material made of lithium metal or lithium alloy. Due to the highly reactive chemical properties of lithium metal, the processing, storage, and use of lithium metal have very high environmental requirements. The negative electrode of lithium-ion...

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Lithium ion batteries are a type of negative electrode material made of lithium metal or lithium alloy. Due to the highly reactive chemical properties of lithium metal, the processing, storage, and use of lithium metal have very high environmental requirements. The negative electrode of lithium-ion batteries is made of intercalated structural materials such as graphite. Lithium ions move between the positive and negative electrodes in the battery, making it much safer than lithium-ion batteries. Lithium ion batteries and lithium polymer batteries. The electrolyte of lithium ion batteries is liquid, and the electrolyte of polymer batteries is gel or solid, which is safer.

Firstly, our current lithium-ion batteries, according to their scientific name, should be called lithium secondary batteries, which have corresponding negative electrode materials. Unlike lithium primary batteries, primary batteries mainly use lithium as the other pole. These types of batteries generally use liquid electrolytes. Nowadays, it is important to use LiPF6 and LiClO4 dissolved in DMC: EC (v: v=1:1) electrolytes. Some have also been modified, but they are still liquid batteries.

From the perspective of internal materials of polymer lithium ion batteries, it is important that the internal electrolyte is polymer, which is generally gel electrolyte and solid electrolyte. If you remember correctly, Koreans have published gel batteries with PEO ionic liquid as electrolyte, and do not know whether such batteries are used on the Galaxy Round or LGGFlex.

Secondly, there are some slight differences in the packaging of lithium-ion batteries. Lithium ion batteries are generally packaged in steel shells (18650 or buckle type 2320), while lithium-ion batteries are packaged in aluminum-plastic packaging film, which is a soft pack battery.

Of course, there are also lithium-ion batteries composed of high conductivity ceramic electrolytes such as LiPON, NASICON, perovskite, LiSICON, or glass electrolytes composed of amorphous materials. If they need to be classified, they may be classified as lithium secondary batteries, but this is already an extension of the concept

Finally, lithium-ion batteries can be roughly divided into two categories: lithium-metal batteries and lithium-ion batteries. Lithium metal batteries are usually non rechargeable and contain metallic lithium. Lithium ion batteries do not contain metallic lithium and are rechargeable. Lithium ion batteries, lithium-ion batteries, and lithium polymer batteries are different in principle. Lithium polymer batteries and lithium-ion batteries have slight differences in packaging. Lithium ion batteries are generally packaged in steel shells (18650 or buckle type 2320), while lithium polymer batteries are packaged in aluminum-plastic packaging film, which is a soft pack battery. The concept of lithium-ion batteries is used very frequently, and with a little attention, we will find that there are actually three differences when using this concept: broad, narrow, and narrow. The broad definition of lithium-ion batteries includes lithium-ion primary batteries and lithium-ion batteries; Due to the wider application of lithium-ion batteries compared to lithium-ion primary batteries, lithium-ion batteries generally refer to lithium-ion batteries in a narrow sense; There are two categories within lithium-ion batteries: polymer lithium-ion batteries and liquid lithium-ion batteries. Because liquid lithium-ion batteries are more mass and widely used, the narrow understanding of lithium-ion batteries refers to liquid lithium-ion batteries. Polymer lithium-ion batteries, also known as lithium polymer batteries, are commonly referred to as polymer batteries.

If the difference between lithium polymer batteries and lithium-ion batteries is compared in a broad and narrow sense, then the only one is the relationship between species and genus concepts, and lithium polymer batteries are included in lithium-ion batteries. Therefore, the narrow comparison refers to the comparison between polymer batteries and liquid lithium-ion batteries. Based on this, lithium-ion batteries are used to refer to liquid lithium-ion batteries.

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