Simple description of lithium-ion battery and lithium polymer battery

Lithium-ion battery (Li-ion)

Lithium-ion batteries are almost dreamy batteries, with high storage capacity, small size, light weight, no memory effect, high voltage, and low self-discharge. It is no wonder that most of the 3C products that are found in modern times use lithium ions (Or lithium polymer) battery.

But the seemingly perfect lithium-ion battery is still dangerous - the most obvious is that it has a very high self-explosion tendency, and so much energy is squeezed into such a small space, it is spectacular to be self-explosive. It is. In order to avoid the danger, the lithium battery must be added with many protective measures to automatically power off when the battery is overcharged or there is any sign of overheating. These extra circuits and mechanisms are why there are no Lithium-Ion batteries of size 3/4 and why the price of notebook batteries is so high.

Another interesting feature of lithium-ion batteries is that whether you use it or not, its maximum storage capacity will gradually decrease with the oxidation of battery materials. At normal room temperature, the storage capacity of lithium-ion batteries will decrease by about 20% per year, and the higher the temperature, the more full the charge, the faster the decline. So if your notebook has poor heat dissipation, it will be full for a long time.

A lithium battery with a power supply at 60 ° C can lose 40% of its stored electricity in three months.

Here are some tips for maintaining your lithium battery:

Don't use the electricity to charge it - the lithium battery doesn't like to be discharged, so if you often find yourself using the power of the notebook, then change the battery!

Don't charge the battery to fullness - as said before, the more the battery is fully charged, the faster the power storage will fall, so it is best to keep 60~80% full.

Every 30 rounds of ordinary charge and discharge, it is necessary to once use "dry" discharge - lithium-ion battery itself is not afraid of short-term, small amount of charge and discharge, but the protection circuit mentioned earlier may be misjudged how much electricity is there. A large discharge will dry the electricity, and then recharge it to full saturation.

When the AC power is used for the notebook, the battery is unplugged - this is also because of the previously mentioned problem of reduced power storage. Unplug the battery so that it does not touch the high temperature of the computer itself. If you throw the battery into the refrigerator, the effect is better.

When the battery is put away, leave about 40% of the electricity in it - leaving too much will reduce the amount of electricity stored. Leaving too little battery will be damaged. It's really hard to wait.

Buy a battery and buy a new one - the new battery will have full power.

Lithium polymer battery (Li-Polymer)

The principle of a lithium polymer battery is the same as that of a lithium ion battery, except that the electrolyte portion is replaced by a polymer. This allows lithium polymer batteries to be made into a variety of shapes (not a good thing for consumers), in line with different requirements, lithium polymer batteries are also safer, higher temperature than lithium-ion batteries, Impact, but there is still a risk of explosion when overcharged. Other maintenance principles are the same as for lithium-ion batteries (so mobile phones with lithium batteries would rather be recharged every day, and do not use optoelectronics to charge).

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