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Microbial fuel cell

A fuel cell and microorganism technology, applied in biochemical fuel cells, fuel cell parts, electrolyte holding devices, etc., can solve the problem of slow anode electron generation rate affecting output power, microbial cells unable to stabilize and uninterrupted power supply, anode microorganisms. growth impact and other issues, to ensure continuous power supply, full utilization of resources, and the effect of promoting growth and development

Active Publication Date: 2018-11-23
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing microbial fuel cells include the following problems: 1. Most microbial batteries cannot provide stable and uninterrupted power supply; 2. The anode electron generation rate of microbial batteries is too slow to affect the stability of output power; 2 Impact

Method used

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specific Embodiment 1

[0026] see Figure 1-2 As shown, the present invention is a microbial fuel cell, including a battery body 1 and an external circuit 2. The battery body 1 is composed of two coaxial cylinders with different diameters, and a separator is arranged along the diameter direction of the cylinder to separate the battery body 1. Separate two cathode chambers 3 and two anode chambers 4; wherein, the inner cylinder is a cylindrical glass cylinder with a bottom radius of 3 cm, a height of 4 cm, and a thickness of 5 mm; the outer cylinder is a cylindrical glass cylinder with a bottom radius of 4 cm and a height of 4 cm ;

[0027] Wherein, add nitrate solution in the cathode chamber 3; The bottom surface of the cathode chamber 3 is provided with a first water inlet 301; The side of the cathode chamber 3 is provided with a first water outlet 302; The upper surface of the cathode chamber 3 is provided with an exhaust port 303; A solution containing organic matter is added in the chamber 4; t...

specific Embodiment 2

[0033] In this implementation, a preparation method of a microbial fuel cell comprises the following steps:

[0034] Step 1: The inner cylinder of the battery body 1 adopts a cylindrical glass cylinder with a bottom radius of 3cm and a height of 4cm, and a glass thickness of 5mm. Among them, the inner cylinder has circular holes with a radius of 2mm, and the circular holes are evenly distributed on the surface of the cylinder. above; the outer surface of the inner cylinder is attached with a layer of proton exchange membrane; and the inside of the inner cylinder is equally divided into two anode chambers 4 by glass plates;

[0035] A concentric glass cylinder with a radius of 4cm and a height of 4cm is installed outside the inner cylinder; and the space between the inner and outer cylinders is divided into two cathode chambers 3;

[0036] Step 2: polar body preparation;

[0037] The anode anaerobic microorganisms are cultivated in advance to allow the microorganisms to form a...

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Abstract

The invention discloses a microbial fuel cell, and relates to the field of biocells. A battery body comprises two cathode chambers and two anode chambers; a nitrate solution is added into the cathodechamber; an organic-containing solution is added into the anode chamber; a cathode body is arranged in the cathode chamber; an anode body is arranged in the anode chamber; anaerobic microorganisms areinoculated in the cathode chamber and the anode chamber; the anaerobic microorganisms in the anode chamber are cultivated on a carbon felt to form a biological membrane; and wire connectors of the two cathode bodies and the two anode bodies are connected with an external circuit through a bidirectional selection switch. According to the invention, a glass cylinder is adopted as the anode and cathode chambers, so that the proper growth environment of the microorganisms in the battery is guaranteed, and the resource utilization is relatively full; the positive electrode electrolyte and the negative electrode electrolyte are replaced by switching the bidirectional selection switch, so that effective continuous power supply is guaranteed, and stable operation of a load can be guaranteed.

Description

technical field [0001] The invention belongs to the field of biological batteries, in particular to a microbial fuel cell. Background technique [0002] Microbial fuel cells are an organic combination of electrochemistry and microorganisms, which can effectively convert the chemical energy contained in complex organisms or simple small molecules into hydrogen energy or electrical energy. It can not only decompose and treat organic matter in wastewater, but also generate electricity for people to use. So it is an energy utilization technology with broad development prospects. [0003] However, the existing microbial fuel cells include the following problems: 1. Most microbial batteries cannot provide stable and uninterrupted power supply; 2. The anode electron generation rate of microbial batteries is too slow to affect the stability of output power; 2 Impact. Contents of the invention [0004] The purpose of the present invention is to provide a microbial fuel cell. By ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/16H01M8/0289H01M8/0206
CPCH01M8/0206H01M8/0289H01M8/16Y02E60/50
Inventor 程桂石任俊吉赵莹董长青
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)