Oxide-based ionic conductors have attracted tremendous research interests due to their wide applications in energy storage and conversion devices, such as photovoltaics, fuel cells, batteries, and supercapacitors. Extensive efforts have been undertaken to improve the ionic conductivity of existing materials along with the development of novel conductors. The recent advance of ionic conductors in nanoscale demonstrated their ultra–high ionic conductivity for the promising applications in energy sector. In this work, recent progresses of conventional oxide conductors and the development of novel conductors are reviewed in details. The strategy to exploit the nanoionics of enhancing the ionic conductivity is discussed. Furthermore, the novel applications of nanoionics for the resistive switching memories are summarized.

中文翻译：

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氧化物基离子导体的最新进展：块状材料，纳米离子及其存储应用

氧化物基离子导体因其在能量存储和转换设备（例如光伏，燃料电池，电池和超级电容器）中的广泛应用而吸引了巨大的研究兴趣。随着新型导体的发展，已经进行了广泛的努力来改善现有材料的离子电导率。纳米级离子导体的最新进展表明，其超高离子电导率可用于能源领域。在这项工作中，详细回顾了常规氧化物导体的最新进展和新型导体的发展。讨论了利用纳米离子增强离子电导率的策略。此外，总结了纳米离子在电阻开关存储器中的新应用。