Abstract: Electric vehicle (EV) charging pile sharing is an effective solution to alleviate current charging challenges. This paper addresses time conflicts between EVs and shared piles by proposing a conflict resolution strategy based on elastic EV charging load adjustment. First, the time window conflicts in shared charging piles are analyzed, and a shared charging approach leveraging EV charging time flexibility is introduced. Next, a vehicle-pile matching model considering time conflicts is established, where non-convex nonlinear constraints are linearized using a difference-based approach. While ensuring EV charging demand is met, the charging interval is compressed to resolve conflicts between EVs and between EVs and shared piles. By introducing binary auxiliary variables, the original nonlinear model is transformed into a mixed-integer model. Furthermore, an improved vehicle-pile matching method based on charging time adjustment is proposed to address the issue of surging constraints with increasing decision variables. Case studies demonstrate that the proposed method significantly increases successful vehicle-pile matching and shared pile utilization while maintaining high computational efficiency. This approach effectively mitigates the low success rate of matching in large-scale charging pile sharing caused by time conflicts.