A low-cost and environmentally benign aqueous rechargeable sodium-ion battery based on NaTi2(PO4)(3)-Na2NiFe(CN)(6) intercalation chemistry

作者：Wu Xianyong; Cao Yuliang; Ai Xinping; Qian Jiangfeng^*; Yang Hanxi

来源：Electrochemistry Communications, 2013, 31: 145-148.

DOI：10.1016/j.elecom.2013.03.013

• Sodium-ion battery
• Aqueous electrolyte
• Intercalation chemistry
• NaTi2(PO4)(3) anode
• Na2NiFe(CN)(6) cathode

An aqueous rechargable Na-ion battery is developed by use of Na-deficient NaTi2(PO4)(3) anode, Na-rich Na-2-NiFe(CN)(6) cathode and aqueous Na2SO4 electrolyte. This battery system can give an average output voltage of 1.27 V. a energy density of 42.5 Wh kg(-1) and can retain 88% of initial capacity for 250 cycles cycled at the 5 C rate. Moreover, this aqueous Na-ion battery has the advantages of low cost, environmentally friendliness and inherent safety, particularly attractive for grid-scale energy storage applications.

• 出版日期2013-6
• 单位武汉大学