What material is used in 18650 lithium battery? Which kind of cell is durable?
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2023/08/18 16:42:17
18650 lithium batteries are mainly divided into two types: ternary lithium battery (Li-ion) and lithium iron phosphate battery (LiFePO4). There are some differences in their chemical composition and properties.
Ternary lithium battery (Li-ion) : Ternary lithium battery uses lithium lithium cobalt oxide (LiCoO2) as the positive electrode material, which has high energy density and high charge and discharge efficiency. They are commonly used in fields such as power tools, mobile electronics and electric vehicles.
Lithium iron phosphate battery (LiFePO4) : Lithium iron phosphate battery uses lithium iron phosphate (LiFePO4) as a positive electrode material, which has high safety and long life. They are commonly used in areas such as electric vehicles, energy storage systems and emergency power supplies.
For an 18650 lithium battery, it can be either a ternary lithium battery or a lithium iron phosphate battery. When purchasing or choosing to use, you can check the battery's specifications and instructions to determine its chemical type. According to different application requirements and performance requirements, it is important to choose the appropriate type of lithium battery.
There are some differences in durability between ternary lithium batteries (Li-ion) and lithium iron phosphate batteries (LiFePO4).
In general, lithium iron phosphate batteries have a longer cycle life and higher durability. They are usually able to carry out more charge and discharge cycles, achieving a longer service life. This makes lithium iron phosphate batteries more suitable for applications that require long periods of use and higher reliability requirements, such as electric vehicles, energy storage systems and emergency power supplies.
Ternary lithium batteries perform better in terms of energy density and charge and discharge efficiency, with higher energy density and higher power output. They are suitable for applications that require high energy density and fast charge and discharge, such as mobile electronic devices and power tools.
Therefore, in terms of durability, lithium iron phosphate batteries usually have a longer life and better durability. However, the specific durability is also affected by factors such as conditions of use, charge and discharge management, and battery design and manufacturing quality. When choosing the battery type, you should consider it according to the application needs and performance requirements, and ensure the correct charge and discharge management and maintenance to extend the battery life.
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