What is a lithium polymer battery?

Lithium polymer battery use file alloy as anode, conductive polymer materials, polyacetylene, polyaniline or poly phenol as the anode, organic solvent as electrolyte. Lithium polyaniline battery than energy can reach 350 w. h/kg, but was only about 50 to 60 w/kg, the working temperature for – 40-70 ℃, life is about 330 times. Its nominal voltage is 3.6 or 3.7V like Li-ion, and there is no memory effect. Here is an introduction to the charging methods, characteristics, and classifications of lithium polymer batteries. 

Lithium polymer battery classification: 

Lithium ion polymer batteries can be divided into three categories: 

  1. Solid polymer electrolyte lithium ion batteries. An electrolyte is a mixture of polymers and salts. This battery has low ionic conductivity at room temperature and is suitable for high temperature use.  
  1. Gel polymer electrolyte lithium ion battery. That is, additives such as plasticizers are added to the solid polymer electrolyte to increase the ionic conductivity and enable the battery to be used at room temperature.  
  1. Lithium-ion battery with polymer cathode material. Using conductive polymer as the positive electrode material, its specific energy is 3 times that of the existing lithium-ion battery, which is the latest generation of lithium-ion battery. 

Lithium polymer battery charging method: 

When our mobile phone is out of power, we need to charge the battery. First, we need to find a special charger for the original mobile phone, otherwise it is easy to damage the battery due to incompatibility or other reasons during charging. . At the same time, everyone knows that mobile phones support fast charging, but the editor here needs to remind everyone that if we don’t have anything particularly important, then it’s best to use slow charging when charging, so as to maximize the guarantee. The service life of the phone battery. 

At the same time, if our mobile phone is not used for a long time, we must first fully charge the polymer lithium battery, and when we fully charge the battery, we should not put the battery on the charger. If the polymer lithium battery is not used for time, it may cause separation between the battery and the mobile phone, thereby affecting the performance of the mobile phone.[Text Wrapping Break]Lithium polymer battery characteristics: 

Compared with lithium ion batteries, lithium polymer battery has the following features: 

  1. Relative to character, battery leakage problem has improved, but has not yet been completely improved. 
  1. Can be made into thin cells: the capacity of 3.6 V250mAh, thin thickness of 0.5 mm. 
  1. The battery can be designed into various shapes. 
  1. Can be made into monomer: high-pressure liquid electrolyte battery can only be acquired through a series of multiple battery high voltage, and polymer battery with no liquid, can be made into monomer battery in multilayer combination to high pressure.
  2. The discharge capacity is theoretically 10% higher than that of a lithium-ion battery of the same size.

Will lithium polymer batteries explode? 

 

Polymer lithium batteries, once a safety hazard occurs, will not explode, but will only swell. In terms of safety, the outer packaging is aluminum-plastic packaging, which is different from the metal shell of liquid lithium batteries. Through the deformation of the outer packing can immediately show internal quality. Once a safety hazard occurs, it will not explode, but will only swell. 

At present, the domestic polymer battery mostly soft packing, adopts aluminum-plastic film as the case, but the electrolyte has not changed. The battery can also be thinner, with better low-temperature discharge properties than polymer batteries and roughly the same material energy density as liquid lithium batteries and polymer batteries, but lighter than conventional liquid lithium batteries due to the use of aluminum-plastic membranes. On the safety side, when the liquid is just boiling, the aluminum plastic film of the flexible packaging battery will naturally expand or rupture, and will not explode. 

Conclusion 

Lithium polymer batteries are safer than lithium batteries. Lithium polymer battery is an upgraded version of lithium ion batteries. Compared with the current epidemic of lithium ion battery, it has a large capacity, small in size (thin), security (no explosion), etc. However, since the replacement of the entire industrial chain takes a certain amount of time, its cost (cost) is currently relatively high, and it is only used in high-end digital products (ultra-thin notebook computers, etc.). 

In the next 5-10 years, lithium polymer batteries will surely replace existing lithium ion batteries. In fact, the penetration rate of lithium polymer batteries in Japan, South Korea and other countries where the electronics industry is relatively developed has reached a certain level. 

Li-polymer battery (Li-polymer, also known as polymer lithium battery): It has many obvious advantages such as high energy density, smaller size, ultra-thin, lightweight, high safety and low cost. It is a new type Battery. In terms of shape, lithium polymer battery with ultra-thin, features can be made into any shape and the capacity of the battery, in order to meet the needs of the various products. 

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