To produce a LiPo battery cell, a series of uique moulds is a necessary tool for any lithium polymer battery manufacturer. For lithium polymer battery cell, the most important mould is the aluminumm foil packing forming mould, let’s call it forming mould in brief. This mould determines the battery major dimensions, such as the thickness,width,length/height.

lipo battery mould

lipo battery mould

Do we need to create a new mould for every new model lipo battery cell?

The answer is no,it’s absolutely not necessary!Why?

Actually this is an simple question for people who is involved in the lipo battery manufacturing, the clue is on the mould. LiPo battery cell forming mould has a important extention feature, this supports the thickness changing. What does this mean? It means that everytime it can create a new battery model by adjusting the thickness parameter without replacing a new mould. In other word, by adjusting the parameters, the forming mould can create different models of LiPo battey cells with different thickness. However, one thing needs to be known that these different models battery have the same width and length, because the forming mould can not adjust the width parameter and length parameter, hence, it’s impossible for it to create batteries with different width nor length.

Let’s take a LiPo battery with model name 103450 as an example.

The forming mould is 3450, it can create a lipo battery named 103450, 10 means 10mm thickness, 34 means 34mm width,50 means 50mm length/height. by changing thickness parameter, with the same mould, we can also create 603450,503450, 803450,903450,703450,653450,753450 and more. Generally speaking, it supports the thickness from 5mm~12mm, this means all lipo cell with the thickness in this range while it’s width is 34mm and length is 50mm can be created with only this one mould.513450,523450,533450,….till 123450. In theory about 70 models.

103450 lipo 10mm thickness

503450 lipo 5mm







You may have a question, why can’t we make also thickness of smaller less than 5mm, and bigger than 12mm? This will lead to another topic, that is the limit of the forming mould, and different types of this mould. we will continue to discuss this in next article: What are the double cave mould and single cave mould?