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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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1.5v Dry Battery.The main reason for the high voltage drop in batteries

release time:2024-02-27 Hits: Popular:AG11 battery

　　The presence of micro short circuits inside the battery, side reactions of electrode materials, and reactions between electrode materials may lead to significant voltage drops during storage (especially at high temperatures of 60 ℃), resulting in significant self discharge of the battery.

　　1、 Micro short circuit inside the battery

　　The following reasons may cause micro short circuits in the battery:

　　1. The burrs of the fluid collection pierce the diaphragm;

　　2. Insufficient adhesive dosage or poor wetting of the powder material results in insufficient adhesion between the coating and the current collector, causing the coating to peel off and puncture the diaphragm;

　　3. There are large particle powders in the slurry, which cause local overpressure of the separator after the battery is vacuumed, resulting in the rupture of the separator;

　　4. The width design of the diaphragm is inappropriate.

　　2、 Side reactions of battery materials

　　Battery materials (including electrolytes) may have side reactions beyond normal electrochemical reactions at high temperatures.

　　3、 Chemical reactions between battery materials

　　At high temperatures and certain voltages, additional chemical reactions may occur between battery materials.

　　4、 Battery materials

　　Regardless of the type of active materials, conductive agents, electrolytes, and adhesives used, if the above hazards exist, there is a possibility of excessive voltage drop during battery storage.

　　Under normal circumstances, when using LA type water-based adhesive, there will be no problem of excessive voltage drop during battery storage, that is, the LA type water-based adhesive material itself will not form significant self discharge.

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