High-energy Li-ion batteries are well-suited for electric vehicle (EV) and energy storage applications. For the success of long-range energy storage systems, increasing the specific energy density of Li-ion batteries toward more than doubled compared to commercial batteries is on demand. Nickel (Ni)-rich multi-component layered oxide, represented by LiNi1−x−y Co x Mn y O2 (NCM, x+y £ 0.5), is a promising high-capacity cathode material for high-energy batteries, whose capacity increases by increasing the amount of Ni and/or by increasing charge cut-off voltage above 4.2 V versus Li/Li+. Their long term performance and high-voltage cycling performance however are often limited, due to high reactivity at highly charged state, instable cathode-electrolyte interface, and the occurrence of metal-dissolution, particle cracking and structural degradation, particularly.1-3 In order to mitigate those problems, we have been designing and developing novel functional binder,4 which provides a solution to the degradation problems of the Ni-rich cathodes coated with conventional polyvinylidenefluoride (PVdF) binder, through superior binding ability to cathode surface and the formation of a robust cathode-electrolyte interface structure. Improved cycling performance and interfacial stabilization of Ni-rich cathodes by the effects of our functional binder would be discussed in the meeting. Acknowledgements This research was supported by Ministry of Trade, Industry & Energy (10080025), National Research Foundation (NRF-2015R1D1A1A01060838) and Creative Human Resource Development Consortium for Fusion Technology of Functional Chemical/ Bio Materials of BK Plus program by Ministry of Education of Korea. References Y.-M. Lee, K.-M. Nam, E.-H. Hwang, Y.-G. Kwon, D.-H. Kang, S.-W. Song, J. Phys. Chem. C., 118, 10631 (2014).H.Q. Pham, K.-M. Nam, E.-H. Hwang, Y.-G. Kwon, H.M. Jung, S.-W. Song, J. Electrochem. Soc., 161 A2002 (2014).D.-T. Nguyen, J. Kang, K.-M. Nam, Y. Paik, S.-W. Song, J. Power Sources, 303, 150 (2016).H.Q. Pham, G. Kim, H.M. Jung, S.-W. Song, Adv. Funct. Mater., 28, 1704690 (2018).