Battery body of lithium battery and prepared first lithium battery
A technology of lithium batteries and battery cores, applied in the field of lithium primary batteries, can solve problems such as poor discharge performance, high heat generation, uneven current density distribution, etc., achieve great promotion value and solve the effect of short circuit
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Example Embodiment
[0019] Example 1
[0020] The assembly method of the separator bag containing the positive electrode sheet provided in this embodiment is as follows: figure 1 As shown, the diaphragm bag 1 is folded in half to encapsulate the first positive electrode sheet 2, wherein the long end 3 of the diaphragm bag is reserved at least three length units of the positive electrode sheet than the reserved short end 4, and the long end 3 is reserved. The length can be reserved flexibly according to the capacity design of the battery, which is used to encapsulate the last negative electrode sheet 8. Starting from the first sealing mark 5, place the second positive electrode sheet 2, and continue the encapsulation. At this time, the diaphragm The bag 1 has been folded in half when the first positive electrode sheet 2 is encapsulated, and then a third positive electrode sheet 2 is placed on the second sealing mark 5, and the encapsulation is continued. After the sheet 2 is encapsulated, a separ...
Example Embodiment
[0021] Example 2
[0022] Another assembly method of the separator bag containing the positive electrode sheet provided in this embodiment is as follows: figure 1 , after the diaphragm bag 1 is folded in half, the first positive electrode sheet 2 is encapsulated, and the second positive electrode sheet 2 is placed with the first sealing mark 5 as the starting point, and the encapsulation is continued. At this time, the diaphragm bag 1 is facing the The first positive electrode sheet 2 has been folded in half when encapsulating, and then a third positive electrode sheet 2 is placed on the second sealing mark 5, and the encapsulation is continued. According to this method, the positive electrode sheet 2 required in the assembly process is packaged. After sealing, a separator bag containing a positive electrode sheet was obtained.
Example Embodiment
[0023] Example 3
[0024] The assembly method of the lithium battery cell structure obtained in Example 1 and Example 2 provided in this example is as follows: figure 2 As shown, smear polyvinylidene fluoride 6 around the upper seal mark of the first positive electrode sheet 2 of the separator bag containing the positive electrode sheet, and the first positive electrode separator bag 7 corresponds to the position of the first positive electrode sheet 2 Put on the first negative electrode sheet 8, the first positive electrode diaphragm bag 7 and the second positive electrode diaphragm bag 7 are folded and sealed with the first negative electrode sheet 8, and then around the seal marks on both sides of the second positive electrode diaphragm bag 7 Apply polyvinylidene fluoride 6, the second positive electrode separator bag 7 and the third positive electrode separator bag 7 are folded and sealed with the second negative electrode sheet 8. According to this method, the negative e...
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