Research and Practice on Qualification Rate Improvement of Lithium-ion Battery Cell for Aerospace
In the current production process of lithium-ion battery cells,the quality of the products fluctuates,and the qualification rate remains low.In response to these problems,qualification rate improvement and stability control research are carried out,and the influencing factors are analyzed by identifying the concerned processes,sorting out quality control points,analyzing man-machine-material method and environmental testing,prioritizing improving the weak links of the production,and breaking through the high-precision and high-consistency coating technology of lithium-ion battery cell,online detection and feedback technology of areal density,and intelligent detection and sorting technology of high-reliability lithium-ion battery pole pieces.The qualification rate index of weak processes has been significantly improved,and so the product qualification rate of lithium-ion battery cells is improved while ensuring economic benefits.
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