All-climate sodium ion batteries based on the NASICON electrode materials
All-climate sodium ion batteries based on the NASICON electrode materials
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DOI：
10.1016/j.nanoen.2016.09.024
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发表时间：
2016-12-01
期刊：
影响因子：
17.6
通讯作者：
Zhang, Shanqing
中科院分区：
文献类型：
--
作者：
Liu, Tiefeng;Wang, Bo;Zhang, Shanqing
在这项工作中，我们已经实现了全气候的高倍率性能的钠离子电池，通过利用电极材料与钠超离子导体（NASICON）晶体结构。设计的NASI-CON结构的碳包覆Na 3V 2（PO 4）（3）（NVP@C）纳米复合材料在宽温度范围内的高速率下表现出优异的性能（即，-20至55摄氏度）。即使在-20 ℃的低温下，NVP@C阴极仍能保持91.3 mA h g（-1）的放电容量，即10 ℃时室温性能的85.2%，并确保2.86 V（vs. Na+/Na）的平均输出电压。这些优异的宽温性能可归因于NASICON结构中的快速三维Na跳跃输运机制。这项工作的发现为解决可充电电池长期存在的固有宽温问题提供了一种有前途的策略，并扩展了钠离子电池的潜在应用。(C)2016爱思唯尔有限公司版权所有。
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 NASI-CON-structured carbon-coated Na3V2(PO4)(3) (NVP@C) nanocomposite exhibits an excellent performance at high rates in a wide temperature range (Le., from -20 to 55 degrees C). Even at a low temperature of -20 degrees 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 10C, 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. (C) 2016 Elsevier Ltd. All rights reserved.