In order to extend the charging life of lithium-ion batteries, the charging process usually requires two stages: constant voltage (CV) charging and constant current (CC) charging. This paper proposes a wireless power transfer (WPT) system based on a three-coil structure with reconfigurable transmitter side to realize charging of applications using lithium-ion batteries. By controlling the working state of the MOSFETS in the T-type inverter, the system can be reconstructed into an LCC-S-S compensation topology with CC output capability and an S-S-S compensation topology with CV output capability. In addition, the proposed system can achieve zero phase angle (ZPA) operation during the entire charging process. Compared with the traditional closed-loop control method, this design avoids problems such as complex parameter design, frequency bifurcation, and redundant compensation components. Therefore, the topology design has the advantages of simple structure and no need for complex control strategies. Finally, a simulation platform is built using Simulink simulation software for verification. The proposed system can realise 2A CC output and 75V CV output, verifying the feasibility of the theoretical analysis.