At the 65th Battery Symposium in Japan, Prof. Gao presented a noteworthy oral presentation titled “Annealing induced Hetergenous Crystallization of Topologically Confined SPEEK thin films”(トポロジカルに拘束されたSPEEK薄膜のアニールによる不均一結晶化). The focus was on enhancing the crystallization process of SPEEK materials crucial for energy storage devices. Prof. Gao pointed how annealing treatment affects crystallization patterns in SPEEK films, especially under spatial confinement. This method resulted in heterogeneous crystallization, revealing unique microstructural features that could improve ionic conductivity and mechanical properties. His findings suggest a pathway for more efficient energy systems. The presentation was met with enthusiasm, highlighting the transformative potential of this work in advancing energy technology materials. His innovative approach to material processing is paving the way for future developments in the field, inspiring ongoing and potential collaborative efforts among researchers.