Preparation method for electrode material used for supercapacitor and application of electrode material

A technology for supercapacitors and electrode materials, which is applied in the manufacture of hybrid capacitor electrodes and hybrid/electric double layer capacitors. It can solve problems such as nickel cobalt oxide that has not yet been discovered, and achieve excellent supercapacitor performance, good process repeatability, and stable product quality. Effect

Active Publication Date: 2015-07-08
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no relevant reports have been found on the preparation of phosphorous-doped nickel cobalt

Method used

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  • Preparation method for electrode material used for supercapacitor and application of electrode material
  • Preparation method for electrode material used for supercapacitor and application of electrode material
  • Preparation method for electrode material used for supercapacitor and application of electrode material

Examples

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Example Embodiment

[0022] Example 1

[0023] Nickel cobaltate powder and sodium hypophosphite were placed in a tube furnace according to (Ni+Co) / P molar ratio of 1:5, under nitrogen atmosphere, with 1 o The heating rate of C / min is raised to 300 o C was calcined for 5 h, and then naturally cooled to room temperature to obtain the phosphorus-doped nickel cobalt oxide electrode material.

[0024] Note: (Ni+Co) / P molar ratio represents nickel cobaltate (NiCo 2 o 4 ) The molar ratio of the sum of the moles of Ni and Co contained in sodium hypophosphite to the P element contained in sodium hypophosphite, the same below.

Example Embodiment

[0025] Example 2

[0026] Nickel cobaltate powder and sodium hypophosphite are placed in a tube furnace according to (Ni+Co) / P molar ratio of 1:10, under nitrogen atmosphere, with 5 o The heating rate of C / min is raised to 400 o C was calcined for 2 h, and then naturally cooled to room temperature to obtain the phosphorus-doped nickel cobalt oxide electrode material.

Example Embodiment

[0027] Example 3

[0028] Nickel cobaltate powder and sodium hypophosphite are placed in a tube furnace according to (Ni+Co) / P molar ratio of 1:15, under nitrogen atmosphere, with 2 o The heating rate of C / min is raised to 350 o C was calcined for 3 h, and then naturally cooled to room temperature to obtain the phosphorus-doped nickel cobalt oxide electrode material.

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Abstract

The invention discloses a preparation method for an electrode material used for a supercapacitor and the application of electrode material. The preparation method for the electrode material comprises the steps that LiCoO2 and sodium hypophosphite are put in a tube furnace proportionally, the LiCoO2 and the sodium hypophosphite are roasted for 1 to 2 hours under an inert atmosphere and with the temperature ranging from 300 DEG C to 500 DEG C, and the electrode material is acquired when the LiCoO2 and the sodium hypophosphite are cooled; phosphor doping LiCoO2 composite electrode material prepared through the preparation method is applied to the supercapacitor. The preparation method for the electrode material has the advantages that the raw material is cheap and easy to get, the synthetic process is simple and easy to realize, the product quality is stable, and the reception performance of the technology is good; phosphor doping LiCoO2 composite electrode material prepared through the preparation method has an excellent supercapacitor performance.

Description

technical field [0001] The invention relates to the synthesis of inorganic materials and their application in the field of electrochemistry, in particular to a preparation method and application of supercapacitor electrode materials. Background technique [0002] Supercapacitors, also known as electrochemical capacitors, are a new type of energy storage device whose performance is superior to traditional physical capacitors and batteries, and its excellent performance is considered a revolutionary development in the field of energy storage. [0003] As far as the research and development of supercapacitors are concerned, they can generally be divided into three parts: 1) the development of electrode materials with high specific volume, high conductivity and stability; 2) the development of electrolytes with high voltage window; 3) Design of supercapacitors with novel structures, such as asymmetric capacitors. Materials determine performance, and electrode materials play a c...

Claims

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Application Information

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IPC IPC(8): H01G11/86H01G11/30
CPCY02E60/13H01G11/86H01G11/30
Inventor 铁津津孙明孙玮骏邓松辉李柏烨余林叶飞成晓玲
Owner GUANGDONG UNIV OF TECH
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