Four Key Properties of Rechargeable Lithium Polymer Batteries

Four Key Properties of Rechargeable Lithium Polymer Batteries

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1. Charge retention capability.
The charge retention capability is usually referred to as self-discharge, which usually refers to the retention capability of the battery stored in the corresponding environmental conditions in the open circuit state. Self-discharge is mainly determined by various factors such as lithium battery materials, manufacturing processes, and storage conditions. Generally, the higher the temperature, the greater the self-discharge rate. The corresponding degree of self-discharge of the rechargeable battery is a normal phenomenon
2. Internal resistance.
The internal resistance of a battery usually refers to the resistance to current flowing through the interior of the battery. The internal resistance of the rechargeable battery is very small, and it is necessary to use a special instrument to accurately measure the more accurate conclusion. Under normal circumstances, the internal resistance of the battery is the internal resistance in the charging state, even if the internal resistance of the battery is fully charged (corresponding to the internal resistance in the discharging state, which refers to the internal resistance after the battery is fully discharged. Generally speaking, the internal resistance in the discharging state The resistance is larger than the internal resistance in the charging state, and at the same time, it is not stable). The greater the internal resistance of the battery, the more energy the battery itself consumes, and the lower the battery’s use efficiency.
4. Capacity.
Refers to the total power that the battery can release under the corresponding discharge conditions.
5. Safety performance.
It is impossible to accept batteries with poor safety and reliability performance indicators. The most influential among them are explosions and leaks. The occurrence of explosion and liquid leakage is mainly related to the internal pressure, structure and process design of the battery, as well as incorrect operation.

Common Causes of Polymer Batteries Not Discharging

Common Causes of Polymer Batteries Not Discharging

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If we suddenly encounter a polymer battery that does not discharge at work, what should we do? We must first find the real reason why the lithium battery does not discharge before we can deal with this problem. Next, we can investigate step by step. Find out why the lithium battery is not discharging.

The first step, first of all, we can see if the tabs of the polymer battery are broken, forming a current circuit breaker.

The second step is to check whether the discharge circuit of the polymer battery device is normal.

The third step is to use a battery testing device to check whether the battery or polymer battery has zero voltage now.

The fourth step is to check whether the electronic components inside the battery pack and the equipment inside the protection circuit are damaged.

There is a problem that the polymer battery does not discharge, so what should we do?

1. If we can’t judge whether there is a problem with the pole ear, we need to take the battery to a specialized technical engineer for further analysis.

2. If the circuit is abnormal, it is recommended that the customer repair it in time and replace it with a new device.

3. If you are using a polymer battery pack, you can remove it and perform zero-voltage analysis on the battery cells one by one.

4. Use a special equipment multimeter to detect whether the electronic components connected to the battery and the equipment are working.