Na-Zn liquid metal battery

Autor: Junli Xu, Ole Sigmund Kjos, Ole Edvard Kongstein, Karen Sende Osen, Geir Martin Haarberg, Ana Maria Martinez
Rok vydání: 2016
Předmět:
Zdroj: Journal of Power Sources. 332:274-280
ISSN: 0378-7753
DOI: 10.1016/j.jpowsour.2016.09.125
Popis: A new kind of membrane free liquid metal battery was developed. The battery employs liquid sodium and zinc as electrodes both in liquid state, and NaCl-CaCl 2 molten salts as electrolyte. The discharge flat voltage is in the range of about 1.4 V–1.8 V, and the cycle efficiency achieved is about 90% at low discharge current densities (below 40 mA cm −2 ). Moreover, this battery can also be charged and discharged at high current density with good performance. The discharge flat voltage is above 1.1 V when it is discharged at 100 mA cm −2 , while it is about 0.8 V with 100% cycle efficiency when it is discharged at 200 mA cm −2 . Compared to other reported liquid metal battery, this battery has lower cost, which suggests broad application prospect in energy storage systems for power grid.
Databáze: OpenAIRE