Knowledge about Power wall Battery

The performance of the lithium iron phosphate battery mainly depends on the positive and negative electrode materials. Lithium iron phosphate was introduced as a positive electrode material relatively late. However, it has a series of advantages such as high safety performance, long cycle life, wide source of raw materials, and low price. It has attracted special attention from experts and scholars in the industry, and related research results and products have been rapidly applied and promoted. At present, the leading domestic power battery enterprises use lithium iron phosphate materials as positive electrodes for more than 30% of the products, and they are showing a rapid growth pattern. Next, let's continue to look at the relevant knowledge of the Power wall Battery.

Here is the content list:

Introduction of Power wall Battery energy storage system.

Criteria for judging the quality of the Power wall Battery.

Introduction of Power wall Battery energy storage system

48v 100Ah lifepo4 battery has a series of unique advantages such as high working voltage, high energy density, long cycle life, and environmental protection, support step-less expansion, and can store large-scale electric energy after forming an energy storage system. The Power wall Battery energy storage system consists of a Power wall Battery group, Battery Management System (BMS), converter device (rectifier, inverter), central monitoring system, transformer, etc. Power wall Battery energy storage system energy conversion principle. In the charging phase, the intermittent power supply or grid charges the energy storage system, and the alternating current is rectified into direct current after passing through the rectifier to charge the energy storage battery module and store energy. In the discharge phase, the energy storage system discharges to the grid or load, and the DC power of the energy storage battery module is converted into AC power through the inverter, and the inverter output is controlled by the central monitoring system, which can provide stable power output to the grid or load.

Criteria for judging the quality of the Power wall Battery

For those who don't know much about Power wall Batteries, it is very difficult to judge the quality of a product when buying a solar charger battery, and they don't know which manufacturer of Power wall Batteries is good. Let's take a look at the criteria for judging the quality of the Power wall Battery.

1. Whether the non-cells of the Power wall Battery are consistent: If the cells of the Power wall Battery are consistent, they can fully release and absorb electric energy. After a long time, the service life of such a battery pack is also very long. To judge Power wall Battery cells, you can connect 4 or 6 cells in series to make 1c charging and 3c discharging, and just look at the difference in the voltage rise and fall of the battery cells during the charging and discharging process.

2. Self-discharge rate of Power wall Battery: The self-discharge rate of a qualified Power wall Battery should not be less than 2%/month. The inspection method is to charge the battery with the same capacity for one month, and then measure the capacity inside value.

3. High rate of battery backup solar: Generally, if the charge and discharge of the power wall battery are strong, it can withstand high rate charge and discharge. The inspection method is to use the highest rate test provided by the manufacturer, and then charge and discharge to see if the battery has obvious heat.

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