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:
Dec. 15, 2020
Filed:
Jan. 16, 2017
Institute of Process Engineering, Chinese Academy of Sciences, Beijing, CN;
Beijing Zhongkaihongde Technology Co., Ltd, Beijing, CN;
Haitao Yang, Beijing, CN;
Qingshan Zhu, Beijing, CN;
Chuanlin Fan, Beijing, CN;
Wenheng Mu, Beijing, CN;
Jibin Liu, Beijing, CN;
Cunhu Wang, Beijing, CN;
Qixun Ban, Beijing, CN;
INSTITUTE OF PROCESS ENGINEERING, CHINESE ACADEMY OF SCIENCES, Beijing, CN;
BEIJING ZHONGKAIHONGDE TECHNOLOGY CO., LTD, Beijing, CN;
Abstract
A system and method for preparing a vanadium battery high-purity electrolyte, comprising preparing a low-valence vanadium oxide with a valence of 3.5 with liquid phase hydrolysis and fluidization reduction with vanadium oxytrichloride, adding clean water and sulfuric acid for dissolution, and further performing ultraviolet activation to obtain the vanadium electrolyte, for use in an all-vanadium redox flow battery stack. The high-temperature tail gas in the reduction fluidized bed is combusted for preheating the vanadium powder material, to recover the sensible heat and latent heat of the high-temperature tail gas, and the sensible heat of the reduction product is recovered through heat transfer between the reduction product and the fluidized nitrogen gas. An internal member is arranged in the reduction fluidized bed to realize the precise regulation of the valence state of the reduction product, and ultraviolet is used to activate the vanadium ions, improving the activity of the electrolyte.