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A lithium ion flow battery and its reactor and electrode box

A liquid flow battery and reactor technology, which is applied in the direction of fuel cells, fuel cell additives, electrochemical generators, etc., can solve the problems affecting the overall performance and scale implementation of lithium-ion flow batteries, uneven reactor flow rates, and suspensions. Viscosity and other problems, to achieve the effect of preventing flow dead angle and channeling phenomenon, small spacing, low cost

Active Publication Date: 2016-03-16
BEIJING HAWAGA POWER STORAGE TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The volume of the current battery reactor cavity structure design is too large. In addition, due to the high viscosity of the suspension, the flow rate into the reactor is likely to be uneven, forming channel flow and flow dead angle.
These issues have seriously affected the overall performance and scale implementation of Li-ion flow batteries.

Method used

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  • A lithium ion flow battery and its reactor and electrode box
  • A lithium ion flow battery and its reactor and electrode box
  • A lithium ion flow battery and its reactor and electrode box

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings and specific examples.

[0027] The preparation method of the electrode box of the present invention is as follows: first, the positive electrode current collector 1 is composed of a single piece of aluminum foil 2 that is glued or plastic-sealed on the side and fixed between the plastic backing plates 4, the thickness of the aluminum foil is less than 30 microns, and there are four positive electrode lugs. 3, such as figure 1 shown.

[0028] The porous diaphragm 6 is placed between two plastic plates 7 with a square hole in the middle less than 0.5 mm in thickness and completely covers the square hole, then the edge of the porous diaphragm 6 is welded or glued to the plastic plates on both sides of the porous diaphragm, constitute a diaphragm window 5, such as figure 2 shown. The porous diaphragm 6 is made of polyethylene, polypropylene, polyvinylidene fluoride or ...

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Abstract

The invention provides a lithium ion flow battery, a reactor and an electrode box thereof, belonging to the technical field of chemical energy storage batteries. The electrode box of the present invention includes a box body, the upper and lower surfaces of the box body are provided with diaphragm windows, the distance between the diaphragm windows is greater than 500 microns and less than 10 mm, and the two opposite side walls of the box body are provided with holes to form electrode suspension. The inlet and outlet of the liquid, the space inside the box constitutes a reaction chamber, and the positive electrode current collector or negative electrode current collector is arranged in the reaction chamber. Positive electrode boxes and negative electrode boxes with the same shape are alternately superimposed and fixed together. The inlet and outlet of the positive electrode suspension of the positive electrode box and the inlet and outlet of the negative electrode suspension of the negative electrode box are perpendicular to each other. After the stacked electrode box Sealing plates are arranged around to form mutually independent positive electrode suspension channels and negative electrode suspension channels, thereby forming a lithium ion flow battery reactor. The invention has the advantages of simple structure, convenient manufacture, high volume power density, low cost and the like.

Description

technical field [0001] The invention relates to a lithium ion flow battery reactor, which belongs to the technical field of chemical energy storage batteries. Background technique [0002] Low-cost, scalable energy storage is the key to developing renewable energy and improving the efficiency of new energy grids. Due to the advantages of high energy density, simplicity and reliability, electrochemical energy storage occupies a pivotal position in electrical energy applications. [0003] Lithium-ion flow battery combines the advantages of lithium-ion battery and flow battery, and is a new type of rechargeable battery with high energy density and low cost. The lithium-ion flow battery consists of a positive electrode suspension pool, a negative electrode suspension pool, a battery reactor, a liquid pump and a sealed pipeline. Wherein, the positive electrode suspension pool holds the mixture of the positive electrode composite material particles and the electrolyte solution, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/18H01M8/04276H01M8/0256H01M2/14
CPCY02E60/50
Inventor 陈永翀武明晓王秋平张萍韩立
Owner BEIJING HAWAGA POWER STORAGE TECH
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