Study on the conductivities of V(Ⅴ) solution of vanadium flow battery

doi:10.3969/j.issn.2095-4239.2015.05.007

Abstract

Abstract: As one of the most feasible large scale energy storage technology of electrical energy, vanadium redox flow battery has been combined with non-continuous renewable power sources such as solar or wind power. In the VFB, the electrolyte is one of the most important components. It is not only the conductor of the ions but also the energy-store medium. The research on thermodynamics of the electrolyte will be of great value to having an adequate understanding of the nature of the electrolyte for providing clues to optimize the overall performance of the VFB. The conductivities of aqueous solution V(Ⅴ) sulfuric acid with various molalities are measured in the temperature range of 278.15~318.15 K. The conductivities of V(Ⅴ) +H₂SO₄+H₂O ternary system was analyzed and the conductivities binary system V(Ⅴ) aqueous solution was obtained by extrapolation, the effects of concentration and temperature on the ionic limiting molar conductivity, stocks radius, the transport number, diffusion coefficient and conductance activation energy were studied and discussed.

Key words: vanadium battery, electrolyte, conductivity, thermodynamic parameter

CLC Number:

TM911

LI Xiangrong, HE Hongxiang, XU Weiguo, LIU Jianguo, QIN Ye, YANG Jiazhen, XU Qian, YAN Chuanwei. Study on the conductivities of V(Ⅴ) solution of vanadium flow battery[J]. Energy Storage Science and Technology, 2015, 4(5): 498-505.

References

[1] Rahman F,Skyllas-Kazacos M. Vanadium redox battery：Positive half-cell electrolyte studies[J]. J . Power Sources ,2009,189：1212-1219.
[2] Skyllas-Kazacos M,Menictas C,Kazacos M. Thermal stability of concentrated V(V) electrolytes in the vanadium redox cell[J]. J. Electrochem. Soc .,1996,143：86-88.
[3] Qin Y,Liu J G,Yan C W. Thermodynamic investigation of electrolyte of ‘vanadium redox flow battery’(III). Volumetric properties of aque ous VOSO 4 [J]. J. Chem. Eng. Data ,2012,57：102-105.
[4] Qin Y,Liu J G,Di Y Y,Yan C W,Zeng C L,Yang J Z. Thermodynamic investigation of electrolytes of vanadium redox ?ow battery (II)：A study on low-temperature heat capacities and thermodynamic properties of VOSO 4 •2.63H 2 O(s)[J]. J. Chem. Eng. Data ,2010,55（3）：1276-1279.
[5] Qin Y,Xue W F,Liu J G,Xu W G,Yan C W,Yang J Z. The estimation of standard molal enthalpies of solution for VOSO 4 • n H 2 O (s) in water and in aqueous H 2 SO 4 [J]. J. Solution Chem. ,2010,39（6）：857-863.
[6] Xu W G,Qin Y,Gao F,Liu J G,Yan C W,Yang J Z. Determination of volume properties of aqueous vanadyl sulfate at 283.15 to 323.15 K[J]. Industrial & Engineering Chemistry Research ,2014,53（17）：7217-7223.
[7] Huang Z Q. Introduction of Theory in Electrolyte Solution[M]. Revised edition. Beijing：Science Press,1983：136.
[8] Pitzer K S. Activity Coefficients in Electrolyte Solutions[M]. 2nd. Ed. London：CRC Press,1991.
[9] Bester-Rogac M. Determination of the limiting conductances and the ion-association constants of calcium and manganese sulfates in water from electrical conductivity measurements[J]. Acta Chim. Slov. ,2008,55：201-208.
[10] Davies C W. Ion Association[M]. London：Butterworths,1962.
[11] Bockris J M,Reddy A K N. Modern Electrochemistry[M]. London：Springer,1970：379-410.
[12] Garrels R M. Mineral Equilibria at Low Temperature and Pressure[M]. New York：Harper Collins General Books Group,1960：210.
[13] Vijayakumar M,Li L Y,Graff G, et al ．Towards understanding the poor thermal stability of V 5+ electrolyte solution in vanadium redox flow batteries[J]. J. Power Sources ,2011,196：3669-3672.

[1]	Yingwei PEI, Hong ZHANG, Xinghui WANG. Recent advances in the electrolytes of rechargeable zinc-ion batteries [J]. Energy Storage Science and Technology, 2022, 11(7): 2075-2082.
[2]	Sida HUO, Wendong XUE, Xinli LI, Yong LI. Visualization analysis of composite electrolytes for lithium battery based on CiteSpace [J]. Energy Storage Science and Technology, 2022, 11(7): 2103-2113.
[3]	Xiaoyu SHEN, Guanjun CEN, Ronghan QIAO, Jing ZHU, Hongxiang JI, Mengyu TIAN, Zhou JIN, Yong YAN, Yida WU, Yuanjie ZHAN, Hailong YU, Liubin BEN, Yanyan LIU, Xuejie HUANG. Reviews of selected 100 recent papers for lithium batteries （Apr. 1， 2022 to May 31， 2022） [J]. Energy Storage Science and Technology, 2022, 11(7): 2007-2022.
[4]	ZHOU Weidong, HUANG Qiu, XIE Xiaoxin, CHEN Kejun, LI Wei, QIU Jieshan. Research progress of polymer electrolyte for solid state lithium batteries [J]. Energy Storage Science and Technology, 2022, 11(6): 1788-1805.
[5]	LI Yitao, SHEN Kaier, PANG Quanquan. Advance in organics enhanced sulfide-based solid-state batteries [J]. Energy Storage Science and Technology, 2022, 11(6): 1902-1918.
[6]	OU Yu, HOU Wenhui, LIU Kai. Research progress of smart safety electrolytes in lithium-ion batteries [J]. Energy Storage Science and Technology, 2022, 11(6): 1772-1787.
[7]	Ronghan QIAO, Guanjun CEN, Xiaoyu SHEN, Mengyu TIAN, Hongxiang JI, Feng TIAN, Wenbin QI, Zhou JIN, Yida WU, Yuanjie ZHAN, Yong YAN, Liubin BEN, Hailong YU, Yanyan LIU, Xuejie HUANG. Reviews of selected 100 recent papers for lithium batteries （Feb. 1， 2022 to Mar. 31， 2022） [J]. Energy Storage Science and Technology, 2022, 11(5): 1289-1304.
[8]	Maolin FANG, Ying ZHANG, Lin QIAO, Shumin LIU, Zhongqi CAO, Huamin ZHANG, Xiangkun MA. Research progress of iron-chromium flow batteries technology [J]. Energy Storage Science and Technology, 2022, 11(5): 1358-1367.
[9]	Chaochao WEI, Chuang YU, Zhongkai WU, Linfeng PENG, Shijie CHENG, Jia XIE. Research progress of Li₃PS₄ solid electrolyte [J]. Energy Storage Science and Technology, 2022, 11(5): 1368-1382.
[10]	Liangtao XIONG, Jifen WANG, Huaqing XIE, Xuelai ZHANG. Effect of vacancy defects on thermal conductivity of single-layer graphene by molecular dynamics [J]. Energy Storage Science and Technology, 2022, 11(5): 1322-1330.
[11]	Zhicheng CHEN, Zongxu LI, Ling CAI, Yisi LIU. Development status and future prospects of flexible metal-air batteries [J]. Energy Storage Science and Technology, 2022, 11(5): 1401-1410.
[12]	Xinyi WANG, Weijie LI, Chao HAN, Huakun LIU, Shixue DOU. Challenges and optimization strategies of the anode of aqueous zinc-ion battery [J]. Energy Storage Science and Technology, 2022, 11(4): 1211-1225.
[13]	Liang FANG, Kai ZHANG, Limin ZHOU. Recent advances and prospects of electrolyte for aluminum ion batteries [J]. Energy Storage Science and Technology, 2022, 11(4): 1236-1245.
[14]	Xingxing WANG, Ziyu SONG, Hao WU, Wenfang FENG, Zhibin ZHOU, Heng ZHANG. Advances in conducting lithium salts for solid polymer electrolytes [J]. Energy Storage Science and Technology, 2022, 11(4): 1226-1235.
[15]	Ying TAO, Lingfei ZHAO, Yunxiao WANG, Yuliang CAO, Shulei CHOU. Stabilization of sodium metal anodes by dual-salt high concentration electrolyte [J]. Energy Storage Science and Technology, 2022, 11(4): 1103-1109.