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Preparation method of electrode material and capacitor electrode thereof

A capacitor electrode and electrode material technology, applied in capacitor electrodes, electrolytic capacitors, capacitors, etc., can solve problems such as uneven hole size, increased resistance, and reduced performance

Active Publication Date: 2009-06-03
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If it is used with mesocarbon, it can also avoid the problem of performance degradation of general toner due to uneven hole size or increased resistance.

Method used

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  • Preparation method of electrode material and capacitor electrode thereof
  • Preparation method of electrode material and capacitor electrode thereof
  • Preparation method of electrode material and capacitor electrode thereof

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Embodiment Construction

[0023] figure 1 It is a flow chart of the preparation of the capacitor electrode of the first embodiment of the present invention. After the preparation method of the present invention firstly dries the carbon powder, then utilizes ruthenium halide (RuX 3 ) and dry carbon powder to prepare a mixed solution, wherein the ruthenium halide can be ruthenium trifluoride (RuF 3 ), ruthenium trichloride (RuCl 3 ), ruthenium tribromide (RuBr 3 or) or ruthenium triiodide (RuI 3 ), and the weight ratio of ruthenium halide to carbon powder is preferably between 1:2 and 1:0.125.

[0024] Afterwards, the mixed solution is titrated with a titration rate of 5 to 40 seconds / cubic centimeter (s / cc) with an alkaline solution to form a precipitate composed of carbon and ruthenium oxide, wherein the alkaline solution can be Sodium hydroxide or potassium hydroxide aqueous solution. Preferably, titrating the mixed solution with an alkaline solution comprises performing a first titration proced...

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Abstract

The invention discloses an electrode material and preparing method through chemical dripping technology, which comprises the following steps: allocating ruthenium halide and carbon powder with weight rate between 1: 2 and 1: 0.125 into composite solution; dripping composite solution to form sediment through alkaline solution ( sodium hydroxide or potassium hydroxide); terminating the first dripping course when pH value is 6.8; terminating the second course when pH value is 7.0; separating; drying to obtain the sediment; heating; activating the sediment to obtain the product.

Description

technical field [0001] The invention relates to an electrode material and a method for preparing a capacitor electrode thereof, in particular to an electrode material with a high specific capacitance value and a method for preparing a capacitor electrode thereof. Background technique [0002] There are two main types of materials for supercapacitors: ruthenium oxide (RuO 2 ) and toner. Simply using ruthenium oxide as the electrode material uses the oxidation-reduction reaction of the metal oxide bulk to generate current to achieve the function of storing electrical energy. Although its electrical storage performance is superior, it is expensive. If the particle size of ruthenium oxide can be further made to reach the nanometer scale, its usable surface area can be increased to increase the utilization efficiency of the block material. In addition, carbon powder is used as an electrode material to store charges by instantaneously changing the arrangement of its electric dou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G55/00H01G9/00H01G9/04H01G9/042
Inventor 蔡庆龙闵俊国姚昕宏
Owner IND TECH RES INST