Details

Autor(en) / Beteiligte

• Yi, Jin
• Wu, Shichao
• Bai, Songyan
• Liu, Yang
• Li, Na
• Zhou, Haoshen

Titel

Interfacial construction of Li2O2 for a performance-improved polymer Li-O2 batteryElectronic supplementary information (ESI) available: Experiment details, FT-IR of copolymer PMS, MMA and St, the chemical stability of PMS in the presence of Li2O2, XRD patterns of PP/PMS/TiO2 and PP, SEM of PP/PMS/TiO2 membrane, TGA curves of PP/PMS/TiO2 and copolymer PMS, cathode and anodic stability of PP/PMS/TiO2 based-GPE, discharge/charge profiles of the first 10 cycles of the Li-O2 battery assembled with Ru

Erscheinungsjahr

2016-02

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Compared with conventional nonaqueous Li-O 2 batteries using organic liquid electrolytes, polymer Li-O 2 batteries have been considered as ideal alternatives based on the consideration of safety issues. However, high interfacial resistances and severe overpotential build-up during cycling remain unsolved problems for their future application. Much less attention has been devoted to the interfacial chemistries in polymer Li-O 2 batteries. In this study, interfacial engineering was elaborately carried out for the design and construction of a Li-O 2 battery with the aim of decreasing the overpotential and achieving a highly efficient polymer Li-O 2 battery. A dramatically decreased overpotential (terminal voltage of charge lower than 4 V vs. Li/Li + ) was obtained in a polymer Li-O 2 battery assembled with a stable redox mediator decorated polymer electrolyte and a high catalytic RuO 2 @reduced graphene oxide based cathode for the first time. The feasibility study demonstrated that interfacial construction could be used as a promising alternative strategy for the development of a polymer Li-air battery. Careful interfacial engineering design and construction was carried out to develop a performance-improved polymer Li-O 2 battery.