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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:2023-08-03 Hits: Popular:AG11 battery

The above prepared active silicic acid aqueous solution and Lithium hydroxide powder (or aqueous solution) are mixed at a certain ratio at 0~80 ℃ (close to normal temperature) and stirred for 10 minutes to 2 hours to obtain a transparent and stable lithium silicate aqueous solution. The raw material ratio is: active silicic acid aqueous solution and Lithium hydroxide powder (or aqueous solution), preferably with the molar ratio of SiO2: Li2O between 2.5 and 10. When the molar ratio is lower than 2.2, white precipitates with chemical composition of Li2O · 2SiO2 or 2Li2O · SiO2 are easily formed during the reaction, which cannot maintain the stability of the aqueous solution for the reaction; If the molar ratio is greater than 10, the long-term stability of the lithium silicate aqueous solution obtained from the reaction is low at high temperatures, and the actual use effect is not good.
The mixing method of the two raw materials adopts adding Lithium hydroxide into the active silicic acid aqueous solution under stirring; Either active silicic acid aqueous solution is added to Lithium hydroxide, or both are added at the same time.
Then, the prepared dilute lithium silicate aqueous solution is evaporated and concentrated at 25-90 ℃ under normal pressure or reduced pressure to obtain a practical concentration of lithium silicate aqueous solution with a SiO2 content of less than 35% (usually 10-25%) by weight. Such a product, with finely dispersed silica particles, not only has the properties of a true solution, but also has good long-term storage stability.
According to literature reports, the lithium silicate trial production team of Tianjin Institute of Chemical Technology, Ministry of Chemical Industry of China, has comprehensively analyzed and compared various methods published abroad. After repeated experiments, a unique manufacturing process route has been developed, which is the room temperature and atmospheric pressure reaction method. Its advantages can utilize cheap raw materials, simple equipment, room temperature and atmospheric pressure reaction, and directly produce high concentration and high modulus lithium silicate aqueous solution
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