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A 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 microbial cells being unable to supply stable and uninterrupted power supply, the influence of anode microorganism growth, and the slow rate of anode electron production. Output power and other issues to ensure continuous power supply, full utilization of resources, and the effect of promoting growth and development

Active Publication Date: 2021-02-12
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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  • A microbial fuel cell
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specific Embodiment 1

[0027] 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 ;

[0028] 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

[0035] In this implementation, a preparation method of a microbial fuel cell comprises the following steps:

[0036] 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;

[0037] 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;

[0038] Step 2: polar body preparation;

[0039] 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 biological cells. In the present invention: the battery body includes two cathode chambers and two anode chambers; a nitrate solution is added into the cathode chamber; a solution containing organic matter is added into the anode chamber; a cathode body is arranged in the cathode chamber; an anode body is arranged in the anode chamber; All the chambers are inoculated with anaerobic microorganisms; the anaerobic microorganisms in the anode chamber are cultivated to form a biofilm on the carbon felt; the wire joints of the two cathode bodies and the two anode bodies are connected to the external circuit through a two-way selection switch. The present invention uses glass cylinders as cathode and anode chambers to ensure a suitable growth environment for microorganisms in the battery and to make full use of resources; by switching the two-way selection switch and replacing the cathode and anode electrolytes, effective continuous power supply is ensured, enabling Ensure the stable operation of the load.

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 Patents(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)