Patent · US Active

Estimation of state-of-charge for zinc-bromine flow batteries by in situ OCV analysis

US10816604B2 · kind B2 · utility

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7Claims
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Assignee

Inventors

Key dates

Filing dateApr 16, 2018
Grant dateOct 27, 2020
Priority date
Expiry dateDec 1, 2038

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E60/50
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

Disclosed are an apparatus and method for estimating a state-of-charge of a zinc flow battery by measuring a concentration of zinc ions contained in an electrolyte through an open-circuit voltage (OCV). The apparatus according to embodiments of the present invention can estimate effectively the state-of-charge of the zinc flow battery from the concentration of zinc ions measured through the OCV of the working electrode with respect to the reference electrode when the measuring electrodes are installed in the cathode electrolyte tank or the anode electrolyte tank.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.