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Low contaminant formic acid fuel for direct liquid fuel cell

Patent ·
OSTI ID:1015156
 [1];  [2];  [3];  [4]
  1. Champaign, IL
  2. Urbana, IL
  3. Palatine, IL
  4. Vancouver, CA
+ Show Author Affiliations
A low contaminant formic acid fuel is especially suited toward use in a direct organic liquid fuel cell. A fuel of the invention provides high power output that is maintained for a substantial time and the fuel is substantially non-flammable. Specific contaminants and contaminant levels have been identified as being deleterious to the performance of a formic acid fuel in a fuel cell, and embodiments of the invention provide low contaminant fuels that have improved performance compared to known commercial bulk grade and commercial purified grade formic acid fuels. Preferred embodiment fuels (and fuel cells containing such fuels) including low levels of a combination of key contaminants, including acetic acid, methyl formate, and methanol.
Research Organization:
University of Illinois
Sponsoring Organization:
USDOE
DOE Contract Number:
FG02-99ER14993
Assignee:
The Board of Trustees of the University of Illinois (Urbana, IL)
Patent Number(s):
7,618,725
Application Number:
11/079,893
OSTI ID:
1015156
Country of Publication:
United States
Language:
English

References (2)

Direct formic acid fuel cells journal September 2002
High power density direct formic acid fuel cells journal May 2004

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30 DIRECT ENERGY CONVERSION