Metal oxide coated with conductive polymer, electrode for electrochemical device comprising it and method for producing metal oxide

A technology of conductive polymers and oxides, applied in battery electrodes, electrochemical generators, hybrid capacitor electrodes, etc., can solve the problems of low conductivity and difficulty in achieving high capacity, and achieve high capacity and excellent cycle stability , high output effect

Active Publication Date: 2022-05-31
LG ENERGY SOLUTION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since metal oxides do not have high conductivity except for a specific structure, electrodes are prepared by simply mixing it with carbon-based conductive materials, but using only this method, it is difficult to achieve high capacity

Method used

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  • Metal oxide coated with conductive polymer, electrode for electrochemical device comprising it and method for producing metal oxide
  • Metal oxide coated with conductive polymer, electrode for electrochemical device comprising it and method for producing metal oxide
  • Metal oxide coated with conductive polymer, electrode for electrochemical device comprising it and method for producing metal oxide

Examples

Experimental program
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Effect test

Embodiment 1

[0074] 0.2 g of cylindrical LiMn with a length of 500 nm and a diameter of 100 nm was prepared by dispersing in ethanol 2 O 4 . In another beaker, 0.012 mmol of pyrrole, 0.012 mmol of hydrochloric acid, and 50 mL of ethanol were stirred to protonate the pyrrole.

[0075] Then, the protonated pyrrole was added to LiMn 2 O 4and stir. At this time, the protonated pyrrole with positive (+) charge is adhered to LiMn with negative (-) charge by electrostatic attraction 2 O 4 on the surface.

[0076] Subsequently, FeCl was added as a polymerization initiator 3 , and the protonated pyrrole was polymerized at 25 °C for 6 h to 2 O 4 A metal oxide comprising a coating composed of a conductive polymer is formed on the surface of the .

Embodiment 2 to Embodiment 6

[0078] The conductive polymer-coated metal oxides of Examples 2 to 6 were prepared in the same manner as in Example 1 except that the monomers and hydrochloric acid shown in Table 1 and their contents were used.

[0079] [Table 1]

[0080]

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Abstract

The present invention relates to a metal oxide coated with a conductive polymer, comprising: a metal oxide; and a coating formed on the surface of the metal oxide and comprising a conductive polymer, wherein the conductive polymer is Polymers of protonated monomers.

Description

technical field [0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims the benefit of the filing date of Korean Patent Application No. 10-2017-0154710, filed with the Korean Intellectual Property Office on Nov. 20, 2017, the entire contents of which are incorporated herein by reference. [0003] The present invention relates to a metal oxide coated with a conductive polymer, an electrode for an electrochemical device comprising the metal oxide, and a preparation method of the metal oxide coated with a conductive polymer. Background technique [0004] As the global demand for energy increases dramatically, the need for energy storage devices with large energy storage capacity and high output is gaining attention. Therefore, a supercapacitor that has an energy density as high as a battery while being capable of instantaneously releasing a high output energy like an existing capacitor has been researched in various ways. Among them, supercapacitors t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/36H01M4/505H01M4/62H01M10/052H01M10/054H01G11/46H01G11/48
CPCH01M4/505H01M10/052H01M10/054H01G11/46H01G11/48H01M4/366H01M4/624H01M4/38H01M4/382H01M4/381H01M10/0525H01G11/86H01G11/06Y02E60/13H01G11/26H01M2004/021
Inventor 卢钟旻尹锡炫柳炳国
Owner LG ENERGY SOLUTION LTD
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