Zinc-nickel double-fluid flow battery

A liquid flow battery, zinc-nickel technology, applied in the direction of alkaline battery electrodes, etc., can solve the problem of corrosion pollution of strong alkaline electrolyte, and achieve the effect of solving the disadvantages of corrosion

Active Publication Date: 2015-06-17
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
View PDF3 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the corrosion pollution problem of the strong alkaline electrolyte of the zinc-nickel flow battery, a cation exchange membrane and an anion exchange membrane are respectively introduced between the positive and negative electrodes, so that the pH

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Zinc-nickel double-fluid flow battery
  • Zinc-nickel double-fluid flow battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Electrolyte preparation

[0026] Positive electrode electrolyte: Weigh 2.806g KOH, dissolve in deionized water, dilute to 50mL, and prepare 1mol L -1 KOH aqueous solution.

[0027] Negative electrode electrolyte: weigh 14.35g ZnSO 4 ·7H 2 O, dissolved in deionized water, dilute to 50mL, and make 1mol L -1 ZnSO 4 aqueous solution.

[0028] The third solution in the ring frame: prepare 1mol L -1 K 2 SO 4 Aqueous solution 50mL.

[0029] Battery Assembly:

[0030] The single cell is (1) positive terminal plate, (2) positive electrode (sintered nickel electrode 3x3cm 2 ), (3)-cation exchange membrane Nafion117, 4-annular frame, 5-anion exchange membrane Aciplex A221, 6-negative electrode (graphite plate 3x3cm 2 ), 7-negative terminal plate, 8,9-pump, 10-positive liquid storage tank, 11-negative liquid storage tank, 12,13-pipeline; single battery structure and system see figure 1

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a zinc-nickel double-fluid flow battery. A single battery sequentially comprises a nickel electrode anode, a cation exchange membrane, an annular frame, an anion exchange membrane and a cathode that are superimposed in order. Both sides of the annular frame are respectively attached to the cation exchange membrane and the anion exchange membrane, two side opening ends of the annular frame are sealed by the cation exchange membrane and the anion exchange membrane, and the central cavity of the annular frame is enclosed into an electrolyte solution storage cavity. A third solution is loaded in the electrolyte solution storage cavity to conduct ions so as to form an ion conducting loop. Two different ion exchange diaphragms are used between the anode and cathode of the battery, by introducing the annular frame into the center, acidity and alkalinity of the electrolyte solutions at the anode and cathode are designed separately and independently, so that the anode electrolyte solution of the zinc-nickel fluid flow battery can use a low concentration alkali fluid, and the cathode electrolyte solution can use a zinc ion containing neutral aqueous solution, thus effectively solving the corrosion defect caused by the need of conventional nickel-zinc fluid flow batteries for a high concentration alkaline zincate aqueous solution.

Description

technical field [0001] The invention relates to a zinc-nickel flow battery, in particular to a zinc-nickel double-liquid flow battery. technical background [0002] The development and utilization of renewable energy such as solar energy, wind energy, and tidal energy cannot do without efficient energy storage equipment. Among many energy storage devices, flow batteries have become one of the most promising energy storage devices due to their low cost, high efficiency, long life, and no geographical constraints. Patent CN101127393A invents a zinc-nickel flow battery, which uses nickel hydroxide or nickelous oxide as the positive electrode, deposited zinc as the negative electrode, and strongly alkaline zincate aqueous solution as the electrolyte, and the flowing electrolyte improves material transfer The process slows down the concentration polarization during the zinc deposition process, and effectively improves the dendrite and deformation problems during the zinc deposit...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H01M4/24
CPCH01M4/24Y02E60/10
Inventor 张华民程元徽赖勤志
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap