The composition of the battery is as follows: the cell and the protection panel, the battery after removing the protective cover is the cell. The protection panel, as the name implies, is used to protect the battery core, and its functions include.
1、Overcharge protection: When you are charging, when your voltage reaches 4.2 volts, the protection panel will automatically shut off the power and cannot be charged.
2、Over-discharge protection: When the battery power is exhausted (about 3.6 V), the protection panel will automatically turn off and cannot be released again. Your meter will turn off automatically.
3、Over-current protection: When the battery is discharged (used), the protection panel will have a maximum current (depending on the instrument), if the current limit is exceeded, the protection panel will be automatically turned off.
4、Short circuit protection: In case of accidental short circuit, the protection panel will automatically close after a few milliseconds and there will be no more current, at this time, even if the positive and negative electrodes touch together, nothing will happen.
The protection panel, as the name implies, is used to protect the battery core and its functions include.
1、Overcharge protection: When you are charging, when your voltage reaches 4.2 volts, the protection panel will automatically shut off the power and cannot be charged.
2、Over-discharge protection: When the battery power is exhausted (about 3.6 V), the protection panel will automatically turn off and cannot be released again. Your meter will turn off automatically.
3、Over-current protection: When the battery is discharged (used), the protection panel will have a maximum current (depending on the instrument), if the current limit is exceeded, the protection panel will be automatically turned off.
4、Short circuit protection: When the battery is short-circuited, the protection panel will turn off automatically within a few milliseconds and will not charge again, even if the positive and negative poles touch together, there is no problem.
Ordinary lithium cells are polymer lithium batteries;
The advantages of the battery are: the cost is very low because of its long history.
Disadvantage: due to the processing process, the number of scrapped refurbished batteries is high, the incidence of problems is high, and the qualification rate is low.
The system is large, heavy, short life, easy to cause explosions and other defects, is the key to the current mainstream cell phone power gradually eliminated. This ordinary lithium battery, in the near future, will gradually fade out of sight.
Polymer Li-ion battery; Li-ion battery has higher energy density, so with the same capacity, Li-ion battery is smaller and lighter in weight. And lithium polymer cells can also be processed into various shapes, making the finished product more flexible in appearance and better in safety. Although the price is higher than 18650, there are many types of models, which can be said to be a trend.
Post time: Dec-12-2022