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Preparation method of flexible composite material, water-system nickel-iron battery electrode containing flexible composite material, and battery

A composite material and flexible technology, applied in the direction of battery electrodes, nickel storage batteries, alkaline storage batteries, etc., can solve the problems of unsatisfactory electrochemical performance and uneven dispersion, achieve high specific capacity, increase energy density, and increase magnification performance effect

Active Publication Date: 2018-11-13
深圳汽航院科技有限公司
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Problems solved by technology

However, since the additives are micron-sized particles and are added by physical mixing, they cannot be uniformly dispersed in the electrode material, so the effect of improving the electrochemical performance is not ideal.

Method used

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  • Preparation method of flexible composite material, water-system nickel-iron battery electrode containing flexible composite material, and battery

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Embodiment Construction

[0023] Other characteristics, characteristics and advantages of the present invention will be more apparent after the following detailed description of the embodiments of the present invention by way of examples in conjunction with the accompanying drawings.

[0024] figure 1 Preparation of flexible FeS provided by the embodiment of the present invention x / InS x Schematic flow chart of the method for / CF composites. Such as figure 1 As shown, the embodiment of the present invention provides the preparation of flexible FeS x / InS x / CF composite material method, wherein, 0<x≤3, the preparation method comprises the following steps:

[0025] Step 1, dissolving iron acetylacetonate and indium acetylacetonate in an organic solvent;

[0026] In one embodiment, iron acetylacetonate and indium acetylacetonate are dissolved in an organic solvent at a molar ratio of 90:10, 85:15 or 80:20. The organic solvent adopts ethanol.

[0027] Step 2, drop the above mixed solution onto t...

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Abstract

The invention relates to a preparation method of a flexible composite material, a water-system nickel-iron battery electrode containing the flexible composite material, and a battery. The preparationmethod of the flexible composite material comprises the following steps of step 1, dissolving iron acetone and indium acetone into an organic solvent; step 2, dripping the mixed solution onto filter paper, drying in an oven at the temperature of 60 DEG C, and removing the organic solvent; step 3, calcining the obtained material in a tubular surface led with Ar (argon) gas, so as to obtain the flexible FeOx / InOx / CF composite material; step 4, calcining the obtained flexible FeOx / InOx / CF composite material in the tubular furnace led with H2S (hydrogen sulfide) gas, so as to obtain the flexible FeOx / InOx / CF composite material. The preparation method has the advantages that the technology is simple; the green and environment-friendly effects are realized; the passivating of electrode and the side effect of hydrogen separation are effectively inhibited, the higher mass specific capacity and coulomb efficiency are realized, and the practical application requirements can be met.

Description

technical field [0001] The present invention relates to the preparation of flexible FeS x / InS x / CF composite material technology, in particular to a preparation method of a flexible composite material, an aqueous nickel-iron battery electrode comprising the flexible composite material, and a battery Background technique [0002] Nickel-iron battery is a rechargeable battery. Its positive electrode material can be nickel hydroxide, the negative electrode material can be simple iron, and the electrolyte is potassium hydroxide or potassium hydroxide plus a small amount of lithium hydroxide. This kind of battery can withstand a certain degree of use accidents (including overcharge, overdischarge, short circuit, overheating), and can still maintain a long life after suffering the above damage. Therefore, this rechargeable battery has broad application prospects in the field of large-scale energy storage. However, this battery also has obvious defects, such as low Coulombic e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/36H01M4/58H01M4/583H01M10/30
CPCH01M4/362H01M4/5815H01M4/5835H01M10/30H01M2004/021Y02E60/10
Inventor 雷丹妮张瑞锋
Owner 深圳汽航院科技有限公司
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