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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
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release time:2024-06-03 Hits: Popular:AG11 battery
The two-terminal development trend of domestic power button cell battery cr1620 diaphragm technology
The Chinese button cell battery cr1620 industry is in the ascendant. Under the encouragement of national policies, the existing capacity expansion and potential capacity development have doubled year by year. As the most profitable diaphragm in the inner layer of lithium-ion batteries, it has taken the lead in development.
The main performance requirements of button cell battery cr1620 diaphragms at present are: thickness uniformity, mechanical properties (including tensile strength and puncture resistance), air permeability, physical and chemical properties (including wettability, chemical stability, thermal stability, safety) and other four performance indicators.
The technical development of button cell battery cr1620 diaphragms is advancing with the changes in the application of lithium-ion batteries. The current prominent feature is the two-terminal development trend of lithium batteries becoming smaller and larger.
From the "small" point of view
It is mainly reflected in the lithium batteries used in portable electronic consumer products, such as mobile phones, digital cameras, electronic dictionaries, etc. The high energy density requirements for button cell battery cr1620 design put forward by beauty and miniaturization have prompted the diaphragms for such button cell battery cr1620 applications to be made thinner and thinner. Because high energy density means accommodating more electrode materials in a small volume, under the condition that the positive and negative electrode materials are fixed, the performance of the diaphragm is bound to be surpassed, which requires that the original battery capacity and cycle life be maintained when the diaphragm is thinner.
From the "big" point of view
It is mainly reflected in the lithium power batteries used in electric bicycles and electric vehicles. It is not difficult to see from the spontaneous combustion of electric vehicles exposed in China that safety performance is currently the bottleneck restricting power lithium batteries. The main reasons are reflected in these three aspects:
1. Safety is the core of the physical and chemical properties of lithium-ion battery diaphragms. Any defect in the other three properties may lead to unstable safety performance;
2. The larger the capacity of the power button cell battery cr1620 cell itself, the fewer cells need to be connected in series. This objectively requires the power button cell battery cr1620 to use a larger capacity cell. The larger the capacity, the more delicate the performance indicators of the cell need to be guaranteed;
3. Since the consistency and combination technology of the series cells will bring safety hazards, this requires the manufacturing of button cell battery cr1620 diaphragms to be more precise.
The excellent performance of lithium batteries and button cell battery cr1620 packs cannot be completely relied on the diaphragms. The full matching of positive and negative electrodes and electrolyte components can achieve this goal. button cell battery cr1620 packs also have combination technology issues. However, as the most valuable button cell battery cr1620 technology, the importance of diaphragm technology is self-evident.
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