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Lithium ion flow battery, reactor and electrode box thereof

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: 2013-05-08
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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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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  • Lithium ion flow battery, reactor and electrode box thereof
  • Lithium ion flow battery, reactor and electrode box thereof
  • Lithium ion flow battery, reactor and electrode box thereof

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Embodiment Construction

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

[0027] The preparation method of the electrode box of the present invention is as follows: First, the positive current collector sheet 1 is composed of a single piece of aluminum foil 2 fixed between the plastic backing plates 4 by side glue or plastic sealing. The thickness of the aluminum foil is less than 30 microns and has four positive electrode tabs. 3. Such as figure 1 Shown.

[0028] Place the porous diaphragm 6 between two plastic plates 7 with a square hole in the middle with a thickness of less than 0.5 mm and completely cover the square holes, and then weld or glue the edges of the porous diaphragm 6 to the plastic plates on both sides of the porous diaphragm. Constitute a diaphragm window 5, such as figure 2 Shown. The material of the porous diaphragm 6 is polyethylene, polypropylene, polyvinylidene fluoride or other electronically non-conductive pol...

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Abstract

The present invention provides a lithium ion flow battery, a reactor and an electrode box thereof, and belongs to the technical field of chemical energy storage. The electrode box comprises a box body, the upper surface and the lower surface of the box body are provided with separation film windows, a distance between the separation film windows is more than 500 microns and is less than 10 mm, both opposite side walls of the box body are provided with holes, the holes form an inlet and an outlet of an electrode suspension liquid, a space inside the box body forms a reaction chamber, and a positive electrode current collection sheet or a negative electrode current collection sheet is arranged inside the reaction chamber. According to the present invention, the positive electrode box and the negative electrode box have the same shape, and are alternately laminated along a vertical direction so as to integratedly fix, the inlet and the outlet of the positive electrode suspension liquid of the positive electrode box are perpendicular to the inlet and the outlet of the negative electrode suspension liquid of the negative electrode box, and sealing plates are arranged on the periphery of the laminated electrode boxes to form the independent positive electrode suspension liquid channel and the negative electrode suspension liquid channel so as to form the lithium ion flow battery reactor. According to the present invention, advantages of simple structure, easy preparation, high volumetric power density, low cost and the like are provided.

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 and scalable energy storage is the key to developing renewable energy and improving the efficiency of new energy grids. Electrochemical energy storage occupies a pivotal position in electrical energy applications due to its high energy density, simplicity and reliability. [0003] Lithium-ion flow battery combines the advantages of lithium-ion batteries and flow batteries, and is a new type of rechargeable battery with high energy density and low cost. The lithium ion flow battery is composed of a positive electrode suspension pool, a negative electrode suspension pool, a battery reactor, a liquid pump and a sealed pipeline. Among them, the positive electrode suspension pool contains a mixture of positive electrode composite material particles and electrolyte, and the negative electrod...

Claims

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Application Information

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IPC IPC(8): H01M8/18H01M8/04H01M8/02H01M2/14H01M8/0256H01M8/04276
CPCY02E60/12Y02E60/528Y02E60/50
Inventor 陈永翀武明晓王秋平张萍韩立
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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