期刊
physica status solidi (RRL) – Rapid Research Letters
标题
The Nature of Lithium-Ion Transport in Low Power Consumption LiFePO4 Resistive Memory with Graphite as Electrode
作者
Lei Zhang, Cheng Wu, Jun Liu, Xiaoning Zhao, Zhongqiang Wang, Haiyang Xu, Liancheng Wang, Yichun Liu
摘要
Lithium-ion migration modulated by the electric field in Li compounds has been studied extensively in Li-ion batteries, which has offered also potential application in ion-migrationrelated resistive switching (RS) memories. However, the related RS mechanism remains elusive in electrode/Li compound/electrode device structure. In article no. 1800320, Xiaoning Zhao and co-workers develop a LiFePO4 RS memory (Au/LiFePO4/Graphite) with Au and graphite sheet as electrodes. The devices can be operated with a low power consumption (< 30mW) and the RS mechanism is ascribed to Li concentration-related reversible conductivity switching in LiFePO4, arising from Li ions insertion/extraction through the graphite electrode. The results provide important guidelines for designing high performance Li-based RS memories from the view point of optimizing the electrode materials and the development of low power RS memories.
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