Design of Functional Binders for Interfacial Stabilization in High-Voltage High-Nickel Lithium-Ion Batteries
발표자
이경록 (서울시립대학교)
연구책임자
문홍철 (kaist)
초록
내용
As the demand for high-performance lithium-ion batteries increases, various strategies have been proposed to enhance device performance. Among them, increasing the operating voltage has gained attention as an effective approach to improve the specific capacity of batteries. However, high-voltage operation imposes significant challenges on electrode stability, necessitating the development of advanced polymer binders. Here, we design a novel polymer binder and comprehensively compare its effects with those of a conventional PVDF binder. The newly designed binder exhibits stronger adhesion to electrode components and higher electrolyte affinity, leading to enhanced interfacial stability. As a result, a uniform and robust cathode electrolyte interface layer is formed, improving capacity retention, cycling stability, and overall electrode performance. These findings provide useful guidelines for the development of high-performance polymer binders for next-generation lithium-ion batteries.