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SINO TECHNOLOGY

Sino Science&Technology Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of Lifepo4 batteries,energy storage battery,portable UPS power supply,personalized customization lithium battery pack etc .

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SUNBEAM

Environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery,3.7V lithium polymer battery, NiMH battery , NiCD battery ,Lead acid battery,dry cell battery ,alkaline battery ,heavy duty battery, button cell battery etc. we devote to R&D,innovation ,production & sales

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GREEN POWER

Shenzhen Green Power Energy Battery Co.,ltd specializes in a wide range of digital battery such as environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery, 3.7V lithium polymer battery, NiMH battery, NiCD battery, dry cell battery, alkaline battery, heavy duty battery, button cell battery etc. we devote to R&D, innovation, production & sales. With automatic production machines we have been exported goods to all over the world over 15years. We have complete exported certificate such as KC, CE, UL, BSCI, ROHS, BIS, SGS, PSE etc

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DATAPOWER

Dongguan Datapower New Energy Co.,ltd is a high-tech production enterprise which specialize in the R&D and production&sale of lithium polymer batteries,drone battery,airplane batteries &battery pack etc.

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SEONG-HEE

Anhui Seong-hee New Energy Technology Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of primary batteries. And mainly produces and sells alkaline batteries & carbon zinc batteries. there are size AA, AAA, C, D, 9V etc

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STD

Guizhou STD Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production & sale of lithium polymer batteries, drone battery, airplane batteries & battery pack etc.

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Lithium battery specific energy and specific power

source:Industry News release time:2024-04-13 Hits: Popular:AG11 battery

　　The output energy of the battery refers to the electrical work that the battery can make under certain discharge conditions, which is equal to the product of the discharge capacity of the battery and the average working voltage of the battery, and its unit is commonly expressed in watt-hours (Wh).

　　There are two types of battery specific energy. One is called weight-specific energy, expressed in watt-hours per kilogram (Wh/kg); The other is called volumetric energy and is expressed in watt-hours per liter (Wh/L). The physical meaning of specific energy is the effective electrical energy of the battery for unit weight or unit volume. It is an important indicator for the comparison of battery performance.

　　It must be pointed out that the specific energy of a single battery and a battery pack is not the same. Because there are always connection strips, external containers and inner packaging layers when the battery pack is combined, the specific energy of the battery pack is always less than the specific energy of the single battery.

　　The power of the battery refers to the energy that the battery can output per unit time under certain discharge conditions. The units are watts (W), or kilowatts (kW). The power per unit weight or unit volume of the battery is called the specific power of the battery, and it is measured in watts per kilogram (W/kg) or watts per liter (W/L). If the specific power of a battery is larger, it indicates that more energy is given per unit time, per unit weight or per unit volume, that is, the battery can discharge with a larger current. Therefore, the specific power of the battery is also one of the important indicators to evaluate the performance of the battery.

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