All-climate sodium ion batteries based on the NASICON electrode materials. (December 2016)

• Record Type: Journal Article
• Authors: Liu, Tiefeng; Wang, Bo; Gu, Xingxing; Wang, Lei; Ling, Min; Liu, Gao; Wang, Dianlong; Zhang, Shanqing
• Is Part Of: Nano energy. Volume 30(2016:Dec.)
• Page Start: 756
• Page End: 761
• Publication Date: 2016-12
• Subjects: Cathode -- Sodium ion battery -- High-rate performance -- Low-temperature application; Nanoscience -- Periodicals; Nanotechnology -- Periodicals; Nanostructured materials -- Periodicals; Power resources -- Technological innovations -- Periodicals; Nanoscience; Nanostructured materials; Nanotechnology; Power resources -- Technological innovations; Periodicals; 621.042
• DOI: 10.1016/j.nanoen.2016.09.024
• Languages: English
• ISSNs: 2211-2855

Abstract

Abstract: In this work, we have achieved all-climate high-rate performance of sodium ion batteries by utilizing electrode materials with Na Super Ionic Conductor (NASICON) crystalline structure. A designed NASICON-structured carbon-coated Na3 V2 (PO4 )3 (NVP@C) nanocomposite exhibits an excellent performance at high rates in a wide temperature range ( i.e ., from −20 to 55 °C). Even at a low temperature of −20 °C, the NVP@C cathode can still maintain a discharge capacity of 91.3 mA h g −1 or 85.2% of the room performance at 10 C, and secure an average output voltage of 2.86 V ( vs. Na + /Na). These excellent wide-temperature accomplishments can be ascribed to fast three-dimensional Na + hopping transportation mechanism in the NASICON structure. The finding in this work offers a promising strategy to address the long-standing inherent wide-temperature issues of rechargeable batteries and extends the potential application of sodium ion batteries. Highlights: We offer a new strategy by using NASICON electrode materials to solve the wide-temperature issues of rechargeable batteries. Carbon-coated Na3 V2 (PO4 )3 nanocomposite exhibits an excellent rate performance at a wide temperature range from −30 to 55 °C. A comprehensive EIS analysis reveals the fast Na ion hopping mechanism in the NASICON structure at various temperatures.