Unlock instant, AI-driven research and patent intelligence for your innovation.

Three-dimensional porous electrode and preparation method and application thereof

A three-dimensional porous electrode technology, applied to battery electrodes, circuits, electrical components, etc., can solve the problems of complex electrode preparation process, uncontrollable pore size, and low electricity generation efficiency, achieve broad application prospects, improve overall electricity generation performance, low cost effect

Active Publication Date: 2017-11-24
杨军
View PDF5 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of low power generation efficiency of microbial fuel cells, complex electrode preparation process, high cost and uncontrollable pore size in the prior art, the present invention provides a three-dimensional porous electrode, its preparation method and its application in microbial fuel cells, and strives to improve Possibility of Practical Application of MFC

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Three-dimensional porous electrode and preparation method and application thereof
  • Three-dimensional porous electrode and preparation method and application thereof
  • Three-dimensional porous electrode and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0090] This embodiment provides a three-dimensional porous copper electrode, the three-dimensional porous copper electrode is cylindrical, the bottom surface diameter is 2.75cm, and the height is 0.5cm. There are square holes distributed on the three-dimensional porous copper electrode, and the side length of the hole is is 494.6μm (see Figure 3a ).

[0091] Preparation:

[0092] (1) Using Solidworks software to design a porous three-dimensional substrate structure (such as figure 1 As shown), the porous three-dimensional base structure is cylindrical, the diameter of the bottom surface is 2.75 cm, and the height is 0.5 cm. The side length of the square holes in the porous three-dimensional base structure is 500 μm. Then import the designed data into the 3D printer in the format of the standard template library STL, and perform light-curing 3D printing to obtain a porous three-dimensional base material;

[0093] (2) The porous three-dimensional base material obtained in st...

Embodiment 2

[0110] This embodiment provides a three-dimensional porous carbon electrode, the three-dimensional porous carbon electrode is cylindrical, the diameter of the bottom surface is 2.75 cm, and the height is 0.5 cm, and holes are distributed on the three-dimensional porous carbon electrode, and the shape of the holes is square, and The side length of the hole (that is, the aperture) is 100 μm, 200 μm, 300 μm, 400 μm, 500 μm (see Figure 6a ).

[0111] Preparation:

[0112] (1) Using Solidworks software to design a porous three-dimensional substrate structure (such as Figure 4 As shown), the porous three-dimensional base structure is cylindrical, the bottom surface diameter is 2.75×2.3=6.33cm, and the height is 0.5×2.3=1.15cm. The side lengths of the square holes in the porous three-dimensional base structure are 230,460,690,920,1150 μm (Due to the problem of shrinking the structure in the same proportion in the subsequent carbon electrode high-temperature preparation process, t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
concentrationaaaaaaaaaa
diameteraaaaaaaaaa
heightaaaaaaaaaa
Login to View More

Abstract

The invention provides a three-dimensional porous electrode and a preparation method and application thereof. The method provided by the invention comprises the steps of 1), designing a porous three-dimensional base structure through adoption of three-dimensional modeling software, importing designed data into a 3D printer, and carrying out photocuring 3D printing, thereby obtaining a porous three-dimensional base material; and 2), carrying out electroless deposition or carbonization treatment on the porous three-dimensional base material, thereby obtaining the three-dimensional porous electrode. Through adoption of the method provided by the invention, the three-dimensional porous electrode with an increased specific surface area and moderate aperture can be prepared, mass transfer is facilitated, and microorganism can enter the electrode for absorption growth. Through 3D printing preparation, the method is characterized by precise and controllable aperture, relatively low cost and very high repeatability. When the method is used for preparing the three-dimensional porous electrode of a microbial fuel cell, the yield is high, the microorganism absorption is improved, the power density of the microbial fuel cell is improved, and the mass production and production of the three-dimensional porous electrode are facilitated.

Description

technical field [0001] The invention belongs to the technical field of 3D printing and new energy, and relates to a three-dimensional porous electrode, its preparation method and application, in particular to a three-dimensional porous electrode, a method for accurately preparing a three-dimensional porous electrode using 3D printing technology, and its use in microbial fuel cells. application. Background technique [0002] Due to the shortage of non-renewable fossil fuels and the increasing environmental pollution caused by their exploitation and use, the search for renewable green energy and clean water resources has attracted widespread attention worldwide. Professor Bruce E.Logan (Microbial Fuel Cell, 1st ed. John Wiley&Sons, Inc., Hoboken, 2007), academician of the American Academy of Engineering, found that 1.5% of the electricity in the United States is directly used for sewage treatment, but he also pointed out that there are a lot of organic matter in sewage The en...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/86H01M4/88H01M8/16
CPCH01M4/8605H01M4/88H01M8/16Y02E60/50Y02P70/50
Inventor 杨军卞斌蔡小兵郭秋泉
Owner 杨军