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What Are The Technical Parameters Of Lithium Solar Cells?

Eight main parameter index values of lithium solar cells:

1. Capacity

Everyone pays attention to this main parameter. It has long been popularized. When we use smart phones, the biggest worry is the lack of power. We must always charge the battery, and sometimes we can’t find the battery in the area to charge. In the early stage, everything is normally used, and the fully charged battery can be shut down for 3 to 5 days, and some products can even be shut down for more than 7 days. However, in the age of smart machines, battery life looks terrible. One of the key reasons is that the power consumption on mobile phones continues to increase, while the volume of rechargeable batteries has not increased by the same proportion.

The unit of capacitance is generally “mAh” (milliampere) or “Ah” (ampere-hour), and there are short-circuit capacity and specific volume in applications. The short-circuit capacity refers to the total power consumption that can be produced when a fully charged lithium solar cell is charged and discharged to the cut-off voltage at a special charge-discharge rate (C-rate) under the laboratory standard (ideal temperature and humidity environment). In general, the specific capacitor is not equal to the rated value capacitor, it is directly related to temperature, ambient humidity, battery charging rate, etc. Generally speaking, the specific capacitor is slightly smaller than the rated capacitor, and sometimes even smaller than the rated capacitor. For example, in the winter in the northern region, if the mobile phone is used outdoors, the battery power will decrease rapidly.

2. Energy density

A rechargeable battery per unit volume or enterprise net weight that can store and release electrical energy. It has two types: Wh/kg and Wh/L, which respectively indicate the net weight energy density and the volume energy density. This power consumption is the integral of the volume (Ah) and the working standard voltage (V). The index value of specific energy is more instructive than volume in application.

With the current technology of lithium solar cells, the specific energy level that can be achieved is about 100~200Wh/kg. The same problem also arises in the pure electric vehicle industry, because the specific energy of the rechargeable battery is strictly limited in terms of volume and net weight, which drives the pure electric vehicle to achieve the highest number of kilometers per trip, so it has “mileage anxiety”. Emotion” is a unique proper noun. If the mileage of a battery car reaches 500 kilometers at a time (which is very different from a traditional gasoline car), the specific energy of a single rechargeable battery must be above 300Wh/kg.

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