Parallel pre-formation module composed of low-cost high-space-utilization lithium ion battery
A lithium-ion battery, high-space technology, applied in small-sized batteries/battery packs, large-sized batteries/battery packs, battery pack components, etc. Large problems, such as excellent electrolyte wettability and thermal stability, reduce the risk factor, and reduce the effect of exhaust steps
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[0024] Attached below Figure 1~5 To further explain this patent:
[0025] 1. A low-cost and high-space utilization lithium-ion battery, comprising an aluminum shell 1, which is characterized in that: a winding core 7 is arranged in the aluminum shell 1 in a winding manner, and the winding core 7 adopts the same-side outgoing tab 3 method. The top surface of the shell 1 is provided with two openings 5, the aluminum plastic film 2 is welded at the opening 5, the aluminum plastic film 2 has a hole through which the tab 3 passes, the aluminum shell 1 is equipped with an airbag 4, and the side of the aluminum shell 1 is provided with a The opening 6 and the side opening 6 are connected with the connecting hole of the airbag 4.
[0026] The core 7 includes a diaphragm, which is characterized in that the diaphragm 5 includes a microporous PET film 9 and a microporous material layer 8. The microporous PET film 9 is distributed with straight micropores arranged in the thickness direction....
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