Eight advantages of polymer lithium batteries

With the rapid development of communication technology, mobile phone color screen technology, MMS technology, Bluetooth technology and camera technology have successively put forward higher requirements on the capacity, volume, weight and electrochemical performance of batteries. The traditional liquid Lithium Battery has been more The more you can't adapt to new needs. The emergence of a new polymer lithium-ion battery (Li-Poly) caters to this demand.

The polymer battery is a third-generation lithium-ion battery developed on the basis of the original steel shell and aluminum shell battery. It is lighter, thinner and has higher energy density. It is accepted by domestic and foreign communication terminal manufacturers and design companies. Favor. The fundamental difference between a polymer lithium-ion battery and a liquid lithium-ion battery is that the electrolytes used in the two are different. Electrolyte of polymer lithium battery

It is solid in appearance and is called a polymer solid electrolyte. This electrolyte is a type of polymer material which is in a solid state but which dissolves the supporting electrolyte like a liquid and can undergo ion migration.

Let's take a look at the eight advantages of using polymer Lithium Batteries?

1, good safety performance

The polymer lithium battery is made of aluminum-plastic flexible packaging, which is different from the metal casing of the liquid battery. In the event of a safety hazard, the liquid battery is easy to explode, and the polymer battery can only be air-blasted at most.

2, thin thickness

Ordinary liquid lithium battery adopts the method of customizing the outer casing and plugging the positive and negative materials. The thickness is 3.6mm or less, there is a technical bottleneck. The polymer battery core does not have this problem. The thickness can be less than 1mm, which meets the needs of mobile phones. direction.

3, light weight

The weight of the polymer battery is 40% lighter than the steel shell lithium battery of the same capacity specification, 20% lighter than the aluminum shell battery.

4, large capacity

The polymer battery has a capacity of 10~15% higher than that of the same size steel shell battery, which is 5~10% higher than that of the aluminum shell battery, and becomes the first choice for color screen mobile phones and MMS mobile phones.

5, the internal resistance is small

The internal resistance of the polymer battery core is smaller than that of the general liquid battery. At present, the internal resistance of the domestic polymer battery core can even be less than 35mΩ, which greatly reduces the self-consumption of the battery and prolongs the standby time of the mobile phone. The level of integration with the international.

6, the shape can be customized

Polymer batteries can increase or decrease the thickness of batteries according to customers' needs. Develop new battery models, which are cheap, open cycle is short, and some can even be customized according to the shape of mobile phones to make full use of battery casing space and upgrade batteries. capacity.

7, good discharge characteristics

The polymer battery uses a colloidal electrolyte, which has a smooth discharge characteristic and a higher discharge platform than a liquid electrolyte.

8, the protection board is simple in design

Due to the use of polymer materials, the cells do not ignite or explode. The cells themselves are sufficiently safe. Therefore, the protective circuit design of the polymer battery can be considered to omit the PTC and the fuse, thereby saving battery cost.