Is lithium battery bought aluminum shell or soft package aluminum plastic compound good?

The built-in battery material is the same, but the flexible packaging battery will be a little softer than the aluminum shell battery, it is easy to distort by hand, so it is a good point of the aluminum shell. There are differences and overlaps in the application fields of soft pack lithium ion battery and aluminum shell battery. The distinction applies to the middle and high end and low end products of consumer electronics. In regions with high consumption level, such as European and American countries, the use of flexible pack lithium ion battery has an advantage; However, in most developing countries, such as India, the Middle East and other regions, aluminum shell battery has obvious advantages. The overlap is reflected in the high-end smartphone market, where the most use is made, with the use of flexible lithium-ion batteries and aluminum-shell batteries, for example, roughly evenly split. Among them, Samsung phones generally use large size (> 4.8 inches), the average battery capacity of about 2700mAh, while the average battery capacity of mobile phones is around 1700mAh.

In terms of technology maturity, aluminum shell technology has been very mature, and the material technology (such as gas expansion rate, expansion rate and other indicators) is not high, there is no technical barrier in the industry; At present, there are still many technical problems to be solved, especially in the index of battery cycle expansion, most of the cell factories have not solved this problem. The manufacturing automation degree of aluminum shell battery is higher than that of soft-pack lithium ion battery, so the influence of human factors on product consistency is reduced to a certain extent, and the labor cost is saved.

In terms of manufacturing cost, the aluminum shell battery material has been completely localized, while the aluminum plastic film material for the soft-pack lithium ion battery still needs to be imported, and the technical requirements of the aluminum shell battery for the battery material are lower than that for the soft-pack lithium ion battery. Therefore, the overall material cost is about 10% lower than that for the soft-pack lithium ion battery under the same capacity. In addition, the finished aluminum shell is easy to process, reliable Pack and obvious cost advantage.

Therefore, the aluminum shell battery has the overall price advantage, and the initial investment of the enterprise will be lower than the soft package lithium ion battery. The soft-pack lithium-ion battery mainly targets at the middle and high-end market, with high profit rate per unit product. Under the same capacity condition, the relative profit is higher than that of aluminum shell battery, and the capital return cycle is also short. Because the aluminum shell battery is easy to form scale effect, and the product qualification rate and cost are easy to control, both of them have considerable profits in their respective market fields.

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