A single trapezoidal flow battery, a multi-trapezoidal flow battery and its stack

A trapezoidal, electrolyte technology, used in battery electrodes, fuel cells, fuel cell additives, etc., can solve the problems of uneven electrolyte reaction, affecting battery efficiency, concentration polarization, etc., to increase the charge and discharge time, improve The effect of concentration uniformity and high liquid discharge speed

Active Publication Date: 2018-07-03
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the electrolyte flows into the electrode, it is accompanied by an electrochemical reaction. At a similar flow rate, the concentration of the reactant will gradually decrease from the inlet to the outlet, causing the concentration gradient of the reactant at the inlet and outlet, resulting in uneven reaction of the electrolyte in the battery. , causing concentration polarization and voltage loss, thereby affecting battery efficiency

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
  • A single trapezoidal flow battery, a multi-trapezoidal flow battery and its stack
  • A single trapezoidal flow battery, a multi-trapezoidal flow battery and its stack
  • A single trapezoidal flow battery, a multi-trapezoidal flow battery and its stack

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] according to figure 1 , for a single trapezoidal flow battery:

[0020] The positive porous electrode is placed in the positive electrode placement area-4 of the single trapezoidal positive electrode flow frame-1, and the positive electrode is arranged on the side of the single trapezoidal positive electrode flow frame-1 near the lower bottom edge (long side) of the positive electrode trapezoid Electrolyte liquid inlet flow channel, positive electrode electrolyte liquid inlet flow channel includes positive electrode liquid inlet port-5 and positive electrode liquid inlet diversion channel-6; positive electrode electrolyte is provided on the side close to the upper bottom (short side) of the trapezoidal shape of the positive electrode Outlet flow channel, the positive electrode electrolyte outlet flow channel includes the positive electrode liquid diversion channel-7 and the positive electrode outlet port-8; the positive electrode electrolyte flows in from the positive e...

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 provides a single trapezoidal liquid flow battery, a multi-trapezoidal liquid flow battery and an electric stack thereof. The positive and negative porous electrodes of the single trapezoidal flow battery are both trapezoidal plate electrodes; the positive and negative porous electrodes are placed in the positive and negative flow frames, on the positive and negative flow frames, close to the positive and negative porous An electrolyte inlet channel is provided on one side of the trapezoidal bottom of the electrode, and an electrolyte outlet channel is provided on the side close to the upper bottom of the trapezoid of the positive and negative porous electrodes. The side flow flows through the positive porous electrode and then flows out from the bottom side of the trapezoidal upper side of the positive and negative porous electrodes; this trapezoidal flow battery can reduce the concentration polarization in the battery to a certain extent, reduce the battery voltage loss, and improve the electrolysis at the same time. The utilization rate of the liquid improves the overall efficiency of the battery.

Description

technical field [0001] The invention relates to the field of flow batteries, in particular to a single trapezoidal flow battery, a multi-trapezoidal flow battery and a stack thereof. Background technique [0002] Existing liquid flow batteries, according to the end plate, collector plate, (double) polar plate, positive electrode porous electrode, positive electrode flow frame, ion exchange membrane, negative electrode flow frame, negative electrode porous electrode, (double) electrode plate, collector The flow plate and the end plate are sequentially stacked and assembled, and the flow battery stack is formed by connecting more than two flow batteries in series. The positive and negative porous electrodes are rectangular, the electrolyte flows in at one end of the rectangle, and the other end of the rectangle flows out at a speed similar to that of the inlet. When the electrolyte flows into the electrode, it is accompanied by an electrochemical reaction. At a similar flow r...

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
Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04276H01M4/86H01M8/18H01M8/2483
CPCY02E60/50
Inventor 张华民郑琼邢枫
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