How does a flow battery work?

In a flow battery, the electrolyte is stored in one or two tanks and pumps are utilized to deliver the electrolyte through the cells in order to recharge or discharge the battery. (When two electrolytes are used they are often referred to as negolyte and posolyte).

Can a potential user evaluate flow batteries for a stationary application?

Abstract: Guidance for an objective evaluation of flow batteries by a potential user for any stationary application is provided in this document. IEEE Std 1679-2020, IEEE Recommended Practice for the Characterization and Evaluation of Emerging Energy Storage Technologies in Stationary Applications is to be used in conjunction with this document.

Are sizing and installation techniques covered in a flow battery evaluation?

Sizing, installation, maintenance, and testing techniques are not covered except insofar as they may influence the evaluation of a flow battery for its intended application. Scope: This document provides guidance for an objective evaluation of flow batteries by a potential user for any stationary application.

Can a manufacturer supply a flow battery?

Manufacturers may supply from a standard product range, or supply customised or bespoke Systems. Users of this CWA are advised to consult up-to-date references for details of each type of Flow Battery. NOTE The definition of a Flow Battery is given in Section 3.34 of this CWA.

What are the risks associated with battery transport?

One of the major risks associated with the transport of batteries is short-circuit of the battery as a result of the battery terminals coming into contact with other batteries, metal objects, or conductive surfaces.

What should be a minimum charge level before packing a battery?

Before packing batteries, it is strongly recommended that their state of charge be reduced to below 30% SoC (or 25% indicated battery capacity). This recommendation will become mandatory on 1 January 2026.