Comparison of lithium battery and polymer lithium battery

With the fierce commodity market, there have been a variety of power supplies, and power supply has emerged in the process of consumer pursuit. But whether the safety of the battery can be affirmed and received by people depends on the use. It is known that polymer lithium batteries and lithium batteries are commonly used power sources. So now the question is coming: Which battery family is strong?

The polymer battery is a polymer lithium battery, which is a kind of lithium battery. The polymer lithium battery has many advantages compared with the lithium ion battery. The advantages of the polymer lithium battery are summarized below: (1) The capacity density is large, and the capacity thereof The density is 1.5 ~ 2.5 times or higher than the nickel-hydrogen battery or nickel-cadmium battery; (2) the self-discharge is small, the capacity loss is small after being placed for a long time; (3) the long life, the normal use of the cycle life It can reach more than 500 times; (4) There is no memory effect, it is not necessary to empty the remaining power before charging, and it is easy to use; (5) The safety performance is good, because the polymer battery is made of aluminum plastic flexible packaging, which is different from the liquid battery. The metal casing, in the event of a safety hazard, the liquid battery is easy to explode, and the polymer battery is only a gas drum. However, the disadvantages are as follows: 1. The battery cost is high and the electrolyte system is difficult to purify. 2: It is necessary to protect the line control. Overcharge or Overdischarge will destroy the reversibility of the internal chemical substances of the battery, thus seriously affecting the life of the battery.

The lithium battery voltage platform is high; the lithium battery has high energy density and high storage energy density compared with the battery; the lithium battery is light in weight and relatively long in service life compared with the lead acid battery, and the service life can reach more than 6 years, the lithium battery High and low temperature adaptability. Lithium batteries have the following disadvantages: they all have poor safety and there is a danger of explosion; the lithium battery of lithium cobalt oxide material can not discharge at a large current and has poor safety. The lithium battery needs to protect the circuit to prevent the battery from being overcharged and discharged.

All in all, if it is safe to compare lithium iron phosphate battery>polymer lithium battery>lithium ion battery, but it has advantages and disadvantages in terms of cost and various practical applications, so it is beneficial to master the above two kinds of batteries. More scientific use of batteries.

The page contains the contents of the machine translation.