New iodine liquid flow energy storage battery

Can a zinc iodine single flow battery be used for energy storage?

With super high energy density, long cycling life, and a simple structure, a ZISFB becomes a very promising candidate for large scale energy storage and even for power batteries. A zinc–iodine single flow battery (ZISFB) with super high energy density, efficiency and stability was designed and presented for the first time.

Are aqueous zinc-iodine batteries suitable for energy storage?

Aqueous zinc-iodine batteries (AZIBs) are promising for cost-effective energy storage. However, some critical problems related to the slow reaction kinetics of iodine conversion, polyiodide shuttle effect and polyiodide corrosion greatly hinder their practical applications.

What is a zinc iodine single flow battery (zisfb)?

A zinc–iodine single flow battery (ZISFB) with super high energy density, efficiency and stability was designed and presented for the first time. In this design, an electrolyte with very high concentration (7.5 M KI and 3.75 M ZnBr 2) was sealed at the positive side.

Are zinc-based flow batteries a good option for large-scale energy storage?

In recent years, zinc-based flow batteries have developed rapidly and become one of the most promising options for large-scale energy storage technology [26, 27, , , , ]. The advantages of zinc-based flow batteries are as follows.

What are zinc poly halide flow batteries?

Zinc poly-halide flow batteries are promising candidates for various energy storage applications with their high energy density, free of strong acids, and low cost . The zinc‑chlorine and zinc‑bromine RFBs were demonstrated in 1921, and 1977 , respectively, and the zinc‑iodine RFB was proposed by Li et al. in 2015 .

How iodine is used in a battery?

For example, in flow batteries, the generated I 2 needs to be converted into a highly soluble I 3- to avoid the deposition of elemental iodine on the electrode surface and block the electrolyte transport pathway, but in static batteries, the positive electrodes generally have strong adsorption to confine iodine to avoid shuttle effect.