Enzymatic fuel cell

a fuel cell and enzyme technology, applied in the field of batteries, can solve the problems of short operational life, high initial cost, and practical restrictions on the operation of devices

Inactive Publication Date: 2005-07-21
POWERZYME
View PDF3 Cites 28 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These types of fuel cells typically operate at temperatures from about 80° C. to about 1,000° C. The shortcomings of the technology include short operational lifetimes d

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
  • Enzymatic fuel cell
  • Enzymatic fuel cell
  • Enzymatic fuel cell

Examples

Experimental program
Comparison scheme
Effect test

example

[0054] The test apparatus consisted of a 5 ml reaction vessel which held the fuel and into which copper or other electrodes were dipped. The electrodes were in turn connected to a high impedance voltmeter for open circuit voltage measurements or to a low impedance ammeter for short circuit current measurements. Various test configurations were employed to establish a baseline with which to measure performance of the cell. Testing was done by dipping electrodes in the fuel solution and measuring current and / or voltage as a function of time.

[0055] The reaction which drove the cell was the oxidation of nicotinamide-adenine dinucleotide hydride (NADH) which is catalyzed by the enzyme glucose oxidase (GOD) in the presence of glucose. This reaction yielded NAD+, a proton (H+) and 2 free electrons.

H2O+NADH=NAD++H3O++2e−

The reaction toke place at one electrode, which was a metallized plastic strip coated with the enzyme GOD. This half-reaction was coupled through an external circuit to 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

No PUM Login to view more

Abstract

Provided is a battery comprising a first compartment, a second compartment and a barrier separating the first and second compartments, wherein the barrier comprises a proton transporting moiety.

Description

[0001] The present invention relates to batteries, including fuel cells and re-chargeable fuel cells, for use in powering electrical devices. [0002] Batteries such as fuel cells are useful for the direct conversion of chemical energy into electrical energy. Fuel cells are typically made up of three chambers separated by two porous electrodes. A fuel chamber serves to introduce a fuel, typically hydrogen gas, which can be generated in situ by “reforming” hydrocarbons such as methane with steam, so that the hydrogen contacts H2O at the first electrode, where, when a circuit is formed between the electrodes, a reaction producing electrons and hydronium (H3O+) ions is catalyzed. 2H2O+H22H3O++2e−  (1) A central chamber can comprise an electrolyte. The central chamber acts to convey hydronium ions from the first electrode to the second electrode. The second electrode provides an interface with a recipient molecule, typically oxygen, found in the third chamber. The recipient molecule rece...

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
IPC IPC(8): H01M8/00H01M8/16C12M1/40H01M8/20H01M14/00
CPCH01M8/16Y02E60/527H01M14/005H01M14/00Y02E60/50
Inventor LIBERATORE, MICHAEL JAMESHOZER, LESZEKSREERAM, ATTIGANAL NARAYANASWAMYKUMAR, RAJANBINDRA, CHETNAFAN, ZHONGHUI HUGH
Owner POWERZYME
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap