-(2)What is the difference between 18650 lithium batteries and soft pack lithium batteries?

(2)What is the difference between 18650 lithium batteries and soft pack lithium batteries?
author:enerbyte source:本站 click325 Release date: 2023-11-17 09:51:42
abstract:
2、 Each has its own advantages and disadvantages, with different application fields 18650 lithium-ion batteries and lithium polymer soft pack batteries each have their own advantages and disadvantages. At present, the production automation of 18650 lithium-ion batteries is...

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2、 Each has its own advantages and disadvantages, with different application fields

18650 lithium-ion batteries and lithium polymer soft pack batteries each have their own advantages and disadvantages. At present, the production automation of 18650 lithium-ion batteries is high, and the consistency and safety of the batteries have reached a high level. In addition, the small size and light weight of the batteries themselves give them unique advantages in terms of modularization and standardization in system development. Many people believe that using 18650 lithium-ion batteries as the power source for new energy electric vehicles is a better choice at this stage.

Compared with 18650 lithium-ion batteries, lithium polymer soft pack batteries have higher monomer capacity and advantages such as thinness, arbitrary area, and arbitrary shape (they can be made into ultra-thin batteries of 0.33mm, 0.50mm, and other models). Their important disadvantages are poor consistency and mechanical strength. Based on the characteristics of lithium polymer soft pack batteries, they are increasingly being used in fields such as mobile phones, laptops, and mobile power supplies. However, due to the poor conductivity and high internal resistance of colloidal (or solid) electrolytes, lithium polymer soft pack batteries are rarely used in electric vehicles nowadays.

However, the 18650 lithium-ion battery also has an unavoidable disadvantage, which is its low monomer capacity (generally around 2-4Ah). This makes the 18650 lithium-ion battery require a large number of batteries for application, making the battery management system for maintaining cell consistency and battery heat dissipation more complex.

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