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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 .
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
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
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.
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
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.
release time:2025-02-17 Hits: Popular:AG11 battery
Short - Circuit Protection of Rechargeable Lithium - Batteries
Short - circuit protection is a crucial safety feature for rechargeable lithium - batteries. A short - circuit occurs when the positive and negative terminals of the battery are connected directly, bypassing the normal load. This can happen due to physical damage to the battery, such as a puncture or a tear in the outer casing, or due to manufacturing defects.
To prevent short - circuits, rechargeable lithium - batteries are equipped with several protection mechanisms. One of the most common is the use of a built - in protection circuit module (PCM). The PCM monitors the battery's voltage, current, and temperature. When it detects a short - circuit condition, which is characterized by a sudden spike in current, it immediately cuts off the power supply. This prevents excessive current from flowing through the battery, which could otherwise cause overheating, damage to the internal components, and potentially a fire or explosion.
In addition to the PCM, physical barriers are also used to prevent short - circuits. The battery's internal components are carefully designed and separated by insulating materials. For example, the separator between the positive and negative electrodes is made of a thin, porous material that allows the flow of lithium ions but prevents the direct contact of the electrodes. The outer casing of the battery is also made of a robust and insulating material to protect the internal components from external physical damage that could lead to a short - circuit.
Manufacturers also conduct rigorous quality control tests to ensure that the batteries are resistant to short - circuits. These tests include mechanical stress tests, such as dropping and crushing the battery, to simulate real - world scenarios where the battery may be damaged. Electrical tests are also performed to check the integrity of the protection mechanisms and to ensure that the battery can withstand potential short - circuit events without malfunctioning.
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