The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 03, 2026
Filed:
Mar. 26, 2021
China Energy Investment Corporation Limited, Beijing, CN;
National Institute of Clean-and-low-carbon Energy, Beijing, CN;
CHINA ENERGY INVESTMENT CORPORATION LIMITED, Beijing, CN;
NATIONAL INSTITUTE OF CLEAN-AND-LOW CARBON ENERGY, Beijing, CN;
Abstract
The invention relates to the field of flow batteries, and in particular relates to a neutral zinc iron flow battery and the use thereof. The neutral zinc iron flow battery comprises a negative electrode electrolyte solution and a positive electrode electrolyte solution, wherein a negative electrode electrolyte in the negative electrode electrolyte solution comprises a first ferrous salt and a zinc salt, the molar ratio of the first ferrous salt to the zinc salt is 0.01 to 0.25:1, wherein the first ferrous salt is based on Fe, and the zinc salt is based on Zn. By doping the first ferrous salt in the negative electrode electrolyte solution and defining the molar ratio of the first ferrous salt to the zinc salt, the concentration of the negative electrode electrolyte active material is increased, the permeation of the positive electrode ferrous ions is reduced, and the stability of the negative electrode electrolyte solution is improved; moreover, the negative electrode electrolyte solution delays the generation of zinc dendrites and improves the energy density and cycle stability of the neutral zinc iron flow battery.