Why do mobile phones use lithium cell phone battery instead of dry batteries?
We all know that the battery has a dry battery and a lithium battery. The mobile phone uses a lithium cell phone battery. What advantages does the lithium cell phone battery have over the dry battery? Why do mobile phone batteries use it?
1, dry battery
The dry battery also becomes a voltaic battery. The voltaic battery is said to be formed by pairs of round plates in pairs and stacked in a certain order. There are two different metal plates on the circular plate, and there is a layer of cloth between the layers to conduct electricity. Function, dry battery is made according to this principle, the dry battery has a paste-like substance inside, and some are gelatin. Therefore, its electrolyte is paste-like, and this battery disposable battery can not be recharged after being discharged. The electromotive force of the zinc-manganese dry battery is 1.5V. If the mobile phone is charged, at least a few dry batteries are needed.
We often see the fifth and seventh batteries. The first and second batteries are relatively small. The batteries are mainly used in wireless mice, alarm clocks, electric toys, computers and radios.
2, lithium cell phone battery
The solution inside the lithium cell phone battery is a non-aqueous electrolyte solution, and the anode material is made of lithium metal or lithium alloy. Therefore, the difference from the dry battery is that the internal reaction substance of the battery is different, and the charging characteristics are different, and the lithium cell phone battery can be cyclically charged. Lithium batteries generally have two kinds of lithium metal batteries and lithium cell phone battery. Such batteries are widely used in mobile phones, electric vehicles, household appliances, mobile phones, notebooks, electric shavers, etc., and are more widely used than dry batteries.
Lithium battery and dry battery comparison features:
1. The dry battery is a disposable battery. The lithium cell phone battery is a rechargeable battery, which can be recharged many times, and has no memory. It does not need to be used according to the amount of electricity(I have mentioned the charging method of the battery here:Determinants of iPhone battery life)
2, dry battery pollution is very strong, many batteries used to contain heavy metals such as mercury, lead, etc., serious environmental pollution, because it is a disposable battery, quickly lost after use, but lithium cell phone battery do not contain harmful metals;
3, lithium cell phone battery also has a fast charging function, cycle life is also very high, which is beyond the reach of dry batteries, and now many lithium batteries will have protection circuits inside.