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Electrode and preparation method of electrode material

An electrode material and electrode technology, applied in battery electrodes, circuits, electrical components, etc., can solve problems such as the deterioration of cycle characteristics of aluminum batteries, and achieve the effect of rapid ion mobility and improved electrochemical performance.

Inactive Publication Date: 2016-07-13
熊菊莲
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in an aluminum battery using ferric chloride as a positive electrode active material, the cycle characteristics of the aluminum battery are extremely deteriorated due to the dissolution of the ferric chloride in the electrolyte.

Method used

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  • Electrode and preparation method of electrode material

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Embodiment Construction

[0014] The preparation method of a kind of electrode material that the present invention proposes, comprises the step: put cellulose acetate into vanadium dichloride VCl 2 , lead dichloride PbCl 2 , Tungsten dichloride WCl 2 and nickel dichloride NiCl 2 One of the solutions, or at least two of them mixed in any ratio, the concentration of the solution is 3wt% to 5wt%, and it is soaked in the above solution for 60-120 minutes in an ultrasonic vibration environment; take it out from the above solution Acetate fiber, dried, and then subjected to high-temperature carbonization treatment to obtain carbonized composite material powder. The carbonized composite material powder is a material that can be used to make electrodes.

[0015] Wherein, in the process of high-temperature carbonization treatment, the following chemical reactions occur: 3XCl2+2C+3O2=X+3Cl2+2XCO3 (high temperature), XCO3=XO+CO2 (high temperature), wherein X represents V, Pb, W or Ni. In the above chemical re...

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Abstract

The invention discloses an electrode and a preparation method of an electrode material.The preparation method of the electrode material includes the steps that cellulose acetate fibers are put into a solution of one of vanadium dichloride, lead dichloride, tungsten dichloride and nickel dichloride or a solution obtained by mixing any two of vanadium dichloride, lead dichloride, tungsten dichloride and nickel dichloride according to any proportion, and are soaked in the solution for 60-120 min in an ultrasonic oscillation environment; the cellulose acetate fibers are taken out of the solution, dried and then subjected to high-temperature carbonization treatment to form a porous layered carbon material with a micropore structure, fine metal particles and corresponding fine metal oxide particles are generated and uniformly distributed in surface micropores of the porous layered carbon material or between wrinkles between layers of the layered carbon material, and the carbonized composite material for manufacturing the electrode is obtained.The electrode material has good electrochemical performance and is low in cost.

Description

technical field [0001] The invention relates to an electrode material, in particular to an electrode and a preparation method of the electrode material. Background technique [0002] A secondary battery is not only capable of converting chemical energy into electrical energy for discharge, but also a battery that can be charged by converting electrical energy into chemical energy by flowing a current in the opposite direction to that of discharge. In recent years, research and development of an aluminum secondary battery using aluminum metal as a negative electrode has been actively carried out. Due to the high ionization tendency of aluminum metal, the electromotive force can be increased compared with conventional batteries using zinc metal as a negative electrode such as manganese batteries, and high voltage and high capacity can be expected. However, in an aluminum battery using ferric chloride as a positive electrode active material, since the ferric chloride is eluted...

Claims

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Application Information

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IPC IPC(8): H01M4/36H01M4/48H01M4/583H01M4/62H01M4/139
CPCH01M4/139H01M4/364H01M4/48H01M4/583H01M4/621H01M4/625Y02E60/10
Inventor 熊菊莲
Owner 熊菊莲
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