Lithium-ion battery,as an indispensable energy supply equipment in modern electronic products,the stability and safety of its performance has been the focus of the industry.In the production process of lithium-ion battery,lamination process is one of the key steps,its quality directly affects the performance and safety of the bat-tery.However,short-circuit may not only lead to degradation of battery performance,but also lead to serious safety accidents.Therefore,the analysis and research on the short-circuit phenomenon of the lithium-ion battery lamination process is of great practical significance.The short-circuit problem in the lithium-ion battery process is a complex engineering problem that needs to be analyzed and solved from multiple dimensions.