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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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Influencing factors on thermal stability of cathode materials for lithium batteries.CR2330 battery

release time:2023-06-08 Hits: Popular:AG11 battery

　　The initial temperature of the reaction between the cathode material and the electrolyte increases with the decrease of the stoichiometric number.

　　The effect of x change on the reaction of cathode materials LixCoO2, LixNiO2, LixMn2O4 and LixC6 with electrolyte was studied by DSC. Through the study, it is concluded that exothermic reaction generally exists between electrolyte and cathode materials. When x value decreases, the reaction temperature rises to 200~230 ℃, and LixCoO2, LixNiO2, LixMn2O4 materials all react strongly with electrolyte.

　　The thermal stability of LixCoO2 was studied by ARC. Above the critical temperature, LixCoO2 releases oxygen and releases a lot of heat. When x=0.25, the initial temperature of exothermic reaction is about 230 ℃. Li Yi et al. measured that the natural reaction temperature of 18650 LiCoO2 was 170 ℃ in the heat resistance test, indicating that the initial temperature of decomposition reaction was lower. Therefore, the initial temperature of the decomposition reaction of the cathode material increases with the decrease of x.

　　The higher the content of Ni in the cathode material, the more unstable it is, and the higher the content of Mn, the more stable it is.

　　The thermal stability of different components of Li1-xNi1-2xCoxMnxO2 was studied by DSC. The results showed that with the decrease of Ni content, the initial and peak exothermic temperatures of Li1-xNi1-2xCoxMnxO2 were higher, and the heat production was less. Maeneil et al. studied the heat release of the reaction of several cathode materials with 1mol LiPF6 EC/DEC,

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