Fuel cell and method for manufacturing the same, enzyme-immobilized electrode and method for producing the same, and electronic device
A technology for fuel cells and electronic equipment, applied in battery electrodes, biochemical fuel cells, components of fuel cells, etc., can solve the problems of resource consumption, lack of glucose dehydrogenase and diaphorase mass ratio, heating, etc.
Inactive Publication Date: 2011-04-13
SONY CORP
View PDF4 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, in fuel cells, natural gas, oil, coal, etc., which are generally converted into hydrogen using a reformer, and hydrogen is used as fuel, there is a problem that limited resources are consumed
In addition, there is a problem that the fuel cell needs to be heated to a high temperature and requires a catalyst composed of a heavy metal such as platinum (Pt)
Similarly, there is no detailed consideration of the mass ratio of glucose dehydrogenase and diaphorase
Also, there is no detailed consideration of the molecular weight of poly-L-lysine
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
no. 4 approach
[0164] 4. Fourth Embodiment (Biofuel Cell)
[0165]
[0166] [Biofuel cell]
[0167] figure 1 A biofuel cell according to a first embodiment of the present invention is schematically shown. In this biofuel cell, glucose is used as fuel. figure 2 The detailed structure of the negative electrode of the biofuel cell, an example of a group of enzymes immobilized on the negative electrode and electron transfer reactions performed by the group of enzymes are schematically shown.
[0168] like figure 1 As shown in , this biofuel cell has a structure in which an anode 1 and a cathode 2 face each other with an electrolyte layer 3 interposed therebetween, which has no electron conductivity but only conducts protons. At the negative electrode 1, glucose supplied as fuel is decomposed by enzymes to extract electrons and also generate protons (H + ). At the positive electrode 2 , water is generated using protons transported from the negative electrode 1 through the electrolyte lay...
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
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
Login to View More
Abstract
Disclosed is a fuel cell wherein current density and retention rate thereof can be improved when at least glucose dehydrogenase and diaphorase are immobilized onto a negative electrode by an immobilization material which is composed of a poly-L-lysine and glutaraldehyde. The fuel cell has a structure wherein a positive electrode (2) and a negative electrode (1) face each other through an electrolyte layer (3), and the negative electrode (1) is obtained by immobilizing at least glucose dehydrogenase and diaphorase onto an electrode by using an immobilization material composed of a poly-L-lysine and glutaraldehyde. The mass ratio between the poly-L-lysine and glutaraldehyde in the immobilization material is set at from 5:1 to 80:1, and the mass ratio between glucose dehydrogenase and diaphorase is set at from 1:3 to 200:1. The poly-L-lysine has an average molecular weight of not less than 21,500.
Description
technical field [0001] The present invention relates to a fuel cell and its manufacturing method, an enzyme-immobilized electrode and its manufacturing method, and electronic equipment. Specifically, the present invention is applicable to a fuel cell in which at least glucose dehydrogenase and diaphorase are immobilized on a negative electrode using an immobilizing material composed of poly-L-lysine and glutaraldehyde, and a process for manufacturing the fuel cell method. Furthermore, the present invention relates to an enzyme-immobilized electrode suitable for the fuel cell, a method of manufacturing the enzyme-immobilized electrode, and an electronic device. Background technique [0002] A fuel cell has a structure in which a positive electrode (oxidant electrode) and a negative electrode (fuel electrode) face each other with an electrolyte (proton conductor) interposed therebetween. In a conventional fuel cell, the fuel (hydrogen) supplied to the negative electrode is o...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/16H01M4/86H01M4/88H01M4/90H01M4/96H01M8/02C12M1/40G01N27/327H01M8/10
CPCC12Q1/006Y02E60/527H01M8/16H01M4/90Y02E60/50Y02P70/50
Inventor 杉山太喜酒井秀树户木田裕一
Owner SONY CORP