There are many companies in the market that make lithium polymer batteries very well. For example, the high energy density of Sanhe Chaoyang means that batteries of the same size can provide higher capacity and longer life compared to the 4.4V system. The density of 4.2V can be increased by 'about 20%, more than 8% higher than that of 4.35 V.
What is a lithium polymer battery?
The Lithium-ion batteries contain electrolytes and are relatively dangerous. Lithium polymer batteries use polymer electrolytes, which have a long life and are. Sure, there will be no safety hazards such as bulging, so polymer batteries are definitely better.
Detailed information:
Lithium polymer battery
Depending on different materialsx electrolytics used in lithium-ion batteries, lithium-ion batteries are divided into liquid lithium-ion batteries and polymer lithium-ion batteries. ) or plastic lithium-ion batteries Battery. The positive and negative electrode materials used in polymer lithium ion batteries are the same as liquid lithium ions. Positive electrode materials are divided into lithium cobalt oxide, lithium manganate, ternary materials and lithium iron phosphate materials. The principle of operation of the battery is also basic.
The main difference is the electrolyte. Liquid lithium-ion batteries use liquid electrolytes, while lithium-ion polymer batteries use solid polymer electrolytes instead. This polymer can also be in the dry state. be "colloidal", and currently most use polymer gel electrolytes.
Lithium battery
"Lithium battery" is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses non-aqueous electrolyte solution. Lithium metal batteries were first proposed and studied by Gilbert N. Lewis in 1912. In the 1970s, M. S. Whittingham proposed and began studying lithium-ion batteries. Since the chemical properties of lithium metal are very active, the processing, storage and use of lithium metal are subject to very high environmental requirements. Therefore, lithium batteries have not been used for a long time. With the development of science and technology, lithium batteries have now become mainstream.
What is the difference between lithium polymer batteries and lithium batteries?
Positive and negative electrode materials used in lithium ion batteriespolymer are the same as liquid lithium ions. The positive electrode material can be divided into lithium cobalt oxide, lithium manganate, ternary materials and lithium iron phosphate materials. The negative electrode is made of graphite, and the working principle of the battery is basically the same. The main difference between them is the electrolyte. Liquid lithium-ion batteries use liquid electrolytes, while lithium-ion polymer batteries use solid polymer electrolytes instead. This polymer can be "dry" or "colloidal", most currently use colloidal polymer electrolytes.
Lithium polymer batteries are good.
Because lithium polymer batteries are an upgrade from lithium-ion batteries produced. Compared with the currently popular lithium-ion batteries, it has the advantages of large capacity, small battery.ille (thin) and safety (won't explode). However, because it takes a long time to replace the entire industrial chain, its cost (cost) is currently relatively high, and it is only used in high-end digital products (ultra-thin laptops, etc. ).
Characteristics of polymer batteries
1. Good safety performance - flexible aluminum-plastic packaging does not explode.
2. The thickness is small and can be made even thinner - less than 1 mm.
3. Lightweight: 40% lighter than steel-cased lithium batteries of the same capacity and 20% lighter than aluminum-cased batteries.
4. Large Capacity - 10-15% higher capacity than same size steel cased lithium batteries.
5. The internal resistance is low - less than 10 mΩ, making it an ideal choice for high-rate discharge power supplies.
6. The shape can be customized - tailor-made according to customer needs, making full use of space and increasing capacity.