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Protective Panel Function — High Voltage 1800mah Primary Li-Mno2 Cell

From:CTECHI GROUP Limited     Release time:2018-12-12

Overview:Is it okay for lithium batteries not to use protective panels? Protective panels are designed to protect batteries from overcharge, overdischarge, short circuit and other problems. Since protective panels are so important for the safety of batteries, why do people think that lithium batteries can also use protective panels?

Is it okay for lithium batteries not to use protective panels? Protective panels are designed to protect batteries from overcharge, overdischarge, short circuit and other problems. Since protective panels are so important for the safety of batteries, why do people think that lithium batteries can also use protective panels?


The idea of why lithium batteries can be produced without a protective plate is largely due to the emergence of lithium iron phosphate batteries. Because of the news that lithium iron phosphate batteries are not afraid of overcharge and overdischarge, the argument that lithium batteries can be used without protection plates has emerged.


So far, however, no battery manufacturers have publicly declared that they do not use protective panels. Since there is some controversy about this issue, let's go back to the protection board itself, to its definition and use, in order to have our own views on whether lithium batteries can not use the protection board.


What is a lithium battery protection panel?


The lithium battery protection board is a charge-discharge protection for series lithium battery packs. When charged, the voltage difference between the individual batteries can be guaranteed to be less than the set value, and the charging effect under the series charging mode can be effectively improved.


At the same time, the over-voltage, under-voltage, over-current, short-circuit and over-temperature status of individual batteries in battery packs are detected to protect and prolong the service life of batteries. Under-voltage protection prevents each single battery from being damaged by over-discharge when discharging.

High Voltage 11.1V Secondary Lithium Ion Battery Pack

Relation between Protective Plate and Lithium Battery


The finished lithium battery consists of two main parts, the lithium battery core and the protective plate. The lithium battery core is mainly composed of positive plate, diaphragm, negative plate and electrolyte. The positive plate, diaphragm and negative plate are wound or stacked, packed, filled with electrolyte, and then made into cores.


The role of lithium battery protection board is unknown to many people. Lithium battery protection board, as its name implies, is used to protect lithium batteries. The function of lithium battery protection board is to protect the battery from discharge, charge and current, and to protect the output short circuit.


Does Lithium Battery Need a Protective Plate


To solve this problem, people who think that lithium batteries do not need protection panels think that lithium batteries will be damaged if they do not connect protection panels, and the protection panels will light up the points of long-term unused lithium batteries.


When it's obvious that the idea is that the role of the protective panel is not well understood. Because the protective board for lithium batteries is equivalent to an additional protective barrier, the role of the protective board is to ensure the safety of lithium batteries and prolong their service life. It is not only difficult to guarantee the service life but also very dangerous without a protective plate.


Therefore, when lithium batteries can be completely free from overcharge, overdischarge and other effects, lithium batteries can completely replace the role of protective plates in their own design, lithium batteries can not need protective panels, but at this stage, lithium batteries still need protective panels.


Of course, if the protection board is not well designed, the battery will also be damaged. Therefore, when buying lithium batteries, it is better to purchase lithium batteries produced by regular manufacturers through regular channels. In this way, the quality of lithium batteries is more guaranteed.


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