Interfacial Stabilization for Improved Cycling Performance of Polymer-Based All-Solid-State Batteries Using Additive Combination

Recently, researchers are devoted to develop all-solid-state batteries based on solid electrolytes such as polymers, sulfides, oxide ceramics that can provide improved thermal stability and safety than conventional lithium-ion batteries based flammable organic liquid electrolyte. However, solid electrolytes faces to challenge lower ionic conductivity and interfacial contact problem between cathode and electrolyte, which causes large interfacial resistance. In this presentation, we report the fabrication of polymer-based all-solid-state batteries with high-nickel LiNi 0.8 Co 0.1 Mn 0.1 O 2 cathode, attainment of high areal capacity ~1.5 mAhcm -2 and improvement of cycling performance using additive combination. Studies of the changes in the structure and morphology of cathode and surface composition and their correlation to the performance would be discussed in the meeting. Acknowledgements This research was supported by the Korean Ministry of Trade, Industry & Energy (10080025), and Creative Human Resource Development Consortium for Fusion Technology of Functional Chemical/Bio Materials of BK Plus program by Ministry of Education of Korea.