Self Terminated Oligomer Branched Architecture (STOBA) was developed to enhance the safety performance in lithium ion battery. Previous studies [1-3] were shown that the STOBA is able to prevent a short circuit problem when battery suffers nail penetration. However, recent inverstigations indicated that the STOBA is constructed by four reaction mechanisms and only one reaction mechanism is used to increase battery performances including safety and cycle life. In this study, a new STOBA is initialized owing to the reaction mechanism is purified. According to the Electrochemical Impedeance Spectroscopy (EIS) results, the new STOBA battery system shows the lowest charge transfer resistance at the first and ten cycle. Fig. 1a indicates that the new STOBA with single reaction mechanism provides high ionic diffusivity, which enhances the electrochemcial reaction on interface. In addition, Fig. 1b demonstrates that a passivation layer was formed and is clearly defined in both cases. The impedance of passivation layer in pure lithium-rich layered nickle maganease oxide (LLNMO) reveals 270 ohm and the STOBA inside LLNMO shows only 200 ohm. Figs. 1c and 1d show the Bode polts of both batteries. This result demonstrates the highest Qeff coeffcicent (at 30 Hz) is taking place at STOBA battery system compare with the pure LLNMO battery system, indicating 3D distribution arises from surface heterogeneity. After ten cycles, Fig. 1d shows that STOBA battery system still provides the highest Qeff coeffcicent (at 7 Hz); nevertheless, a sensitive shoulder (at the range of 1.3~0.09 Hz) is discovered at pure LLNMO system, indicating an phase exchange irreversible reaction of bulk material is enclosed. This result indicates the new STOBA inhibits the phase exchange irreversible reaction and provides good performance for further application. Reference 1. Fu-Ming Wang, Shen-Chuan Lo, Chin-Shu Cheng, Jung-Hsuan Chen, Bing-Joe Hwang, Hung-Chun Wu, J. Membrane Sci 368 (2011) 165 2. Yu-Han, Meng-Lun Lee, Fu-Ming Wang, Chang-Rung Yang, Peter P. J. Chu, Jing-Pin Pan, Electrochim. Acta 85 (2012) 72 3. Yu-Han, Meng-Lun Lee, Fu-Ming Wang, Chang-Rung Yang, Peter P. J. Chu, Jing-Pin Pan, Appl. Sur. Sci. 261 (2012) 306 Figure 1