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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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release time:2024-10-15 Hits: Popular:AG11 battery
Application status and development background of CR2032 battery
Application status of high-voltage lithium-ion batteries
High-voltage lithium-ion batteries are usually referred to as batteries with a single-cell charging cut-off voltage higher than 4.2V, such as lithium-ion batteries used in mobile phones, with a cut-off voltage from 4.2V to 4.3V, 4.35V, and then to 4.4V (Xiaomi mobile phones, Huawei mobile phones, etc.). At present, 4.35V and 4.4V lithium-ion batteries have been maturely used in the market, and 4.45V and 4.5V have also begun to be favored by the market and will gradually mature.
At present, domestic and foreign manufacturers of mobile phones and other digital electronic products are moving towards high-voltage lithium-ion batteries. High-voltage and high-energy-density lithium-ion batteries will have a larger market space in high-end mobile phones and portable electronic devices. Positive electrode materials and electrolytes are key materials for improving the high voltage of lithium-ion batteries, among which the use of modified high-voltage lithium cobalt oxide and high-voltage ternary materials will be more mature and common.
As the voltage of high-voltage lithium-ion batteries increases, some safety performance will decrease during use, so they have not been used in large quantities in power vehicles. At present, the main positive electrode materials used in power vehicles are still ternary materials and lithium iron phosphate. In order to improve energy density to meet demand, high-nickel positive electrode materials such as 811NCM and NCA, high-capacity silicon-carbon negative electrodes, or improving the utilization of battery space are generally selected to improve their energy density and endurance.
Background of high-voltage lithium-ion battery development
In order to design high-energy-density lithium-ion batteries, in addition to continuously optimizing their space utilization, improving the compaction density and gram capacity of battery positive and negative electrode materials, and using highly conductive carbon nano and polymer adhesives to increase the content of positive and negative active substances, increasing the working voltage of lithium-ion batteries is also one of the important ways to increase battery energy density.
The cut-off voltage of lithium-ion batteries is gradually transitioning from the original 4.2V to 4.35V, 4.4V, 4.45V, 4.5V and 5V. Among them, 5V nickel-manganese lithium-ion batteries have excellent characteristics such as high energy density and high power, and will be one of the important directions for the development of new energy vehicles and energy storage in the future. With the continuous development of power research and development technology, lithium-ion batteries with higher voltage and higher energy density will gradually come out of the laboratory and serve consumers in the future.
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