Lithium battery protection panel wiring method

Oct 29, 2019   Pageview:167

Lithium battery protection plate is the charge and discharge protection of series lithium battery. When full of electricity, the voltage difference between individual cells is less than the set value(generally ± 20 mV), and the charging effect of individual cells in the battery pack is effectively improved. At the same time, the overpressure, underpressure, overcurrent, short-circuit and overtemperature of each single cell in the battery are detected to protect and extend the service life of the cell. The undervoltage protection prevents the battery from being damaged by overdischarge during discharge use of each single cell.

There are two main parts of the finished lithium battery composition, lithium battery core and protective plate, lithium battery core mainly consists of positive plate, diaphragm, negative plate, electrolyte; Positive plate, diaphragm, negative plate winding or lamination, packaging, perfusion electrolyte, packaging is made into a core, the role of lithium battery protection plate many people do not know, lithium battery protection plate, as the name implies is to protect lithium batteries. of, The role of the lithium battery protection plate is to protect the battery but put, but fill, but the flow, and there is also output short circuit protection.

Connection of lithium battery Protection Plate

There are two ways to design a lithium battery protection plate. They are positive plates and negative plates. The principle and purpose are the same. However, the device does not support the setting of correction and negative plates through software, so it can only be physically correct. Connect to determine the protection method, At the same time, the software used is also different. The following describes the connection and operation methods of the two protective panels.

Introduction of several wiring methods for lithium battery protection plate

The commonly used protective panels for the connection of battery protection panels are nothing more than negative identical plates, negative separation plates, and positive identical plates. Other methods are not described in detail. The details are as follows:

1, negative plate connection method, connection order please refer to the following table.

Introduction of several wiring methods for lithium battery protection plate

2, negative plate connection mode, the connection order please refer to the following table.

Introduction of several wiring methods for lithium battery protection plate

3, the positive plate connection mode, the connection order please refer to the following table.

Introduction of several wiring methods for lithium battery protection plate

During the process, the battery protection plate has many connection methods when tested on non-standard battery equipment, and it is also worth testing that the connection is familiar. The simple process is as follows:

1, put the equipment on a relatively horizontal desktop, and adjust the equipment's smoothness, so that it is stable;

2, to ensure that the use of equipment humidity in the range of 30 to 50 %, high humidity is prone to leakage of electricity from the shell, electric shock accident;

3, access the appropriate power supply(AC220V/0 .1 A), turn on the main device power button, turn on the respective power module button

4, check whether the equipment can be properly displayed and normal testing.

Lithium battery protection plate connection methods

Some lithium-ion batteries have a third temperature protection line, and some have a battery information check line(such as a non-original battery to alert the alarm). Lithium-ion batteries are batteries + protective plates. Line 3 will only appear on the protective plate, and the battery will always have only two lines. There are two types of lithium-ion batteries, and the obvious 3.7 V is non-iron phosphate aluminum, which can be replaced directly.

The replacement is very simple(note the positive and negative poles):

1: Remove the packaging of the primary battery, and then the electric iron separates the protective plate from the battery.

2: Also remove the protective panel of your new battery and attach the battery to the old protective panel.

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