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A kind of ce-mof electrode material and its preparation method and application

An electrode material and reaction technology, applied in the field of Ce-MOF electrode material and its preparation, can solve the problems of low active material load on the electrode, reduce the conductivity of the electrode, and restrict the electrochemical performance, so as to achieve good electrochemical performance and improve performance, the effect of excellent Coulombic efficiency

Active Publication Date: 2020-09-25
XINXIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method adds a non-conductive binder, which will reduce the conductivity of the entire electrode, thereby restricting its electrochemical performance.
And the loading capacity of active material on the electrode that existing method obtains is lower (no more than 2mgcm -2 ), which is not conducive to practical application

Method used

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  • A kind of ce-mof electrode material and its preparation method and application
  • A kind of ce-mof electrode material and its preparation method and application
  • A kind of ce-mof electrode material and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0021] (1) Foam nickel (surface density is 350g / m 2 , thickness 0.5mm) was cut into a rectangle of 1cm×5.5cm, put into a beaker, added acetone, and ultrasonically cleaned for 20min in an ultrasonic cleaner (500W) to remove surface oil stains to obtain foamed nickel-1.

[0022] (2) Take a 250ml PTFE beaker and configure 100ml of a mixed aqueous solution of 1.2g terephthalic acid and 1.2g ammonium fluoride as the electrolyte. The beaker was used as an electrolytic cell, and two nickel-1 foams were used as a working electrode and a counter electrode respectively, and the depth of both electrodes immersed in the solution was 1 cm. Using the constant potential method, set the electrode potential to 2V, and the time is 10min. During this process, keep the temperature of the electrolyte at 120°C, and feed N20min in advance. 2 , until the end of the experiment, the working electrode was removed to obtain foamed nickel-2.

[0023] (3) At room temperature, use 10ml of water and 10ml o...

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Abstract

The invention discloses a cerium-based metal organic framework (Ce-MOF) electrode material and a preparation method and application thereof, and belongs to the field of battery supercapacitor electrodes. The novel Ce-MOF electrode material is obtained through a simple hydrothermal method, the electrode material has good high-rate performance, long cycling stability and excellent coulombic efficiency, the performance of the Ce-MOF supercapacitor electrode is improved, and actual application and popularization of the Ce-MOF supercapacitor electrode are facilitated.

Description

technical field [0001] The invention relates to a preparation technology of a battery supercapacitor electrode, in particular to a Ce-MOF electrode material and a preparation method and application thereof. Background technique [0002] With the development of new energy industries such as smart grids and photovoltaic power generation, higher requirements are placed on the electrochemical performance of energy storage devices such as batteries and supercapacitors. Therefore, it is necessary to continuously develop new high-performance electrode materials. Ce-MOF is a general term for Ce-based metal-organic framework materials. There are very few types of Ce-MOF that have been developed so far, and the electrochemical performance, especially high-rate performance, cycle capacity and Coulombic efficiency is very limited, which greatly restricts Ce-MOF. The practical application ability of materials in the field of supercapacitors. On the other hand, most of the Ce-MOF electro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/86H01G11/30H01M4/60
CPCH01G11/30H01G11/86H01M4/60Y02E60/10Y02E60/13
Inventor 杨杰徐彦陈磊山马学骥陈改荣张伟
Owner XINXIANG UNIV
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