Mass Distribution Indication of Flow Battery State of Charge

摘要

An electrochemical device includes at least one electrochemical cell having an anode electrode and a cathode electrode, a reservoir configured to store an electrolyte and a mass distribution measuring device. The mass distribution measuring device includes at least one of a scale, a first pressure sensor located in a lower portion of the reservoir and a second pressure sensor located in an upper portion of the reservoir, or at least one strain gauge or load cell configured to measure a change a weight of the at least one electrochemical cell.

主权项

1. A method of determining the state of charge in a flow battery comprising:
measuring a mass distribution characteristic of the flow battery to determine the state of charge, wherein the measuring comprises measuring one or more of:
a weight of an electrolyte reservoir;a weight of an electrolyte in the electrolyte reservoir;a pressure difference of an electrolyte between a lower portion of the reservoir and an upper portion of the reservoir; ora weight of a stack of flow battery cells.