TY - JOUR
T1 - Cost-effective, long-term aqueous rechargeable hybrid sodium/zinc batteries based on Zn anode and Na3MnTi(PO4)3 cathode
AU - Zhou, Yu
AU - Zhang, Zishuai
AU - Liu, Jiefei
AU - Lam, Kwok ho
AU - Zheng, Xingyu
AU - Lou, Hongtao
AU - Hou, Xianhua
N1 - Funding Information:
This work was financially supported by the Joint Fund Project of Guangdong and Guangxi (2020A151410008), the Scientific and Technological Plan of Guangdong Province (2018B050502010, 2019B090905005), Science and Technology Program of Guangzhou (No.2019050001), National Key Research and Development Program of China (2019YFE0198000), and the third batch of Zhaoqing Xijiang Talent Innovation Team project (2019).
Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2021/12/1
Y1 - 2021/12/1
N2 - Aqueous rechargeable batteries have promising application in large-scale energy storage owing to their cost-effective, eco-friendly, high safety and good electrochemical performance. An aqueous rechargeable hybrid sodium/zinc battery with Zn anode, Na3MnTi(PO4)3 cathode and 0.5 mol L-1 CH3COONa and Zn(CH3COO)2 mixed electrolyte has been designed for the first time. The battery delivered a reversible and stable capacity of 95.0 mAh g−1 at 1.5 C for 50 cycles with a high and flat working voltage of 1.75 V vs. Zn2+/Zn. Impressively, the battery showed the excellent cycling performance and superior rate capability, which can be cycled at 10.0 C for 2000 cycles with a capacity retention of 93.6% and a reversible capacity of 55.6 mAh g−1 at 30.0 C. Meanwhile, the co-intercalation mechanism of hybrid Na+ and Zn2+ in the cathode is elucidated by cyclic voltammogram, ex-situ XRD, ex-situ XPS and Rietveld refinement analysis. This work gets insight into the charge/discharge processes of hybrid ions for NASICON-structured Na3MnTi(PO4)3, providing a feasible way to design cost-effective, high safety and long-term aqueous rechargeable batteries.
AB - Aqueous rechargeable batteries have promising application in large-scale energy storage owing to their cost-effective, eco-friendly, high safety and good electrochemical performance. An aqueous rechargeable hybrid sodium/zinc battery with Zn anode, Na3MnTi(PO4)3 cathode and 0.5 mol L-1 CH3COONa and Zn(CH3COO)2 mixed electrolyte has been designed for the first time. The battery delivered a reversible and stable capacity of 95.0 mAh g−1 at 1.5 C for 50 cycles with a high and flat working voltage of 1.75 V vs. Zn2+/Zn. Impressively, the battery showed the excellent cycling performance and superior rate capability, which can be cycled at 10.0 C for 2000 cycles with a capacity retention of 93.6% and a reversible capacity of 55.6 mAh g−1 at 30.0 C. Meanwhile, the co-intercalation mechanism of hybrid Na+ and Zn2+ in the cathode is elucidated by cyclic voltammogram, ex-situ XRD, ex-situ XPS and Rietveld refinement analysis. This work gets insight into the charge/discharge processes of hybrid ions for NASICON-structured Na3MnTi(PO4)3, providing a feasible way to design cost-effective, high safety and long-term aqueous rechargeable batteries.
KW - Aqueous battery
KW - Hybrid sodium/zinc batteries
KW - NaMnTi(PO)
KW - Zn anode
UR - http://www.scopus.com/inward/record.url?scp=85108685808&partnerID=8YFLogxK
U2 - 10.1016/j.cej.2021.130459
DO - 10.1016/j.cej.2021.130459
M3 - Journal article
AN - SCOPUS:85108685808
SN - 1385-8947
VL - 425
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
M1 - 130459
ER -