A kind of microbiological fuel cell and preparation method thereof

A technology of fuel cells and microorganisms, applied in the field of micro-microbial fuel cells and its preparation, can solve the problems of short start-up time, small internal resistance, low power generation efficiency, etc., and achieve the reduction of electrode area, small internal resistance, and lower internal resistance Effect

Active Publication Date: 2021-02-19
SOUTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the relatively mature microbial fuel cells of conventional size have a large bottleneck in application due to low power generation efficiency, while micro microbial fuel cells have a higher electron density than traditional two-chamber MFC due to their small internal resistance and short start-up time. Received widespread attention due to advantages such as transmission efficiency

Method used

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  • A kind of microbiological fuel cell and preparation method thereof
  • A kind of microbiological fuel cell and preparation method thereof
  • A kind of microbiological fuel cell and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Preparation of a Microbial Fuel Cell

[0027] (1) Configure bacterial liquid

[0028] Inoculate Shewanella oneidensis CN-32 wild type as the experimental strain (ATCC 700550) into LB liquid medium, and culture it on a shaking table at 30°C and 220rpm for 12 hours to obtain a bacterial liquid, in which Shewanella The concentration is 10 8 cfu / mL, wherein the concentration of peptone in LB liquid medium is 10g / L, the concentration of yeast extract is 5g / L, and the concentration of NaCl is 10g / L.

[0029] (2) Battery assembly

[0030] The cotton thread I with a radius of 1.2 mm and a length of 10 cm and the cotton thread II with a radius of 1.5 mm and a length of 10 cm were subjected to plasma cleaning, and then one end of the cotton thread I was immersed in a potassium ferricyanide solution with a concentration of 0.05 mol / L. Wrap the carbon cloth I with a length of 1cm and a width of 2mm and lead it out with a titanium wire (wire I) to form a cathode. The other end of...

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Abstract

The invention relates to a micro-microbial fuel cell and a preparation method thereof, belonging to the technical field of microbial fuel cells. The battery uses cotton thread I soaked in an oxidant solution as a cathode cell, and cotton thread II soaked in a bacterial solution as an anode cell. The cotton thread One end of I is wrapped by carbon cloth I and drawn out by wire I to form a cathode, the other end of cotton thread I is intertwined with one end of cotton thread II to form an ion exchange area, and the ion exchange area is wrapped by carbon cloth II and drawn out by wire II The anode is formed, and the ion exchange area wrapped by carbon cloth II is located in the closed space formed by insulating plate I and insulating plate II. The battery does not need an external pump, has the advantages of high current density, small internal resistance, simple preparation process, easy-to-obtain raw materials, and low price, and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of microbial fuel cells, and in particular relates to a micro-microbial fuel cell with cotton thread as a channel and a preparation method thereof. Background technique [0002] At present, the global energy gap is increasing, and the energy crisis is becoming more and more prominent. Seeking renewable energy is a way to solve such problems. A microbial fuel cell is a device that uses microbial bacteria in nature as a biocatalyst to convert chemical energy in organic matter into electrical energy. A microbial fuel cell is a device that uses microorganisms as an anode catalyst to directly convert chemical energy into electrical energy. The basic structure is a cathode pool and an anode pool. At present, the relatively mature microbial fuel cells of conventional size have a large bottleneck in application due to low power generation efficiency, while micro microbial fuel cells have a higher electron density t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/16
CPCH01M8/16Y02E60/50Y02P70/50
Inventor 乔琰罗贤
Owner SOUTHWEST UNIV
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