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Fuel Cell Technology

Fuel cell technology is the energy obtained by the conversion of hydrogen.

Basic comparison between Fuel cells and Batteries:

BATTERIES

  • Electrochemical Storage device
  • Rechargeable
  • Pollution
  • Efficiency: 20 - 25 %
FUEL CELLS

  • Electrochemical conversion device
  • Not rechargeable
  • No pollution (except for Hydrogen to gain from fuel)
  • Efficiency up to 32 %
Basic comparison between Fuel cells and IC Engines:

IC ENGINES
  • Output is Mechanical
  • Pollution
  • Combustion
FUEL CELLS
  • Output is Electrical
  • No pollution (except for Hydrogen to gain from fuel)
  • No combustion
Courtesy: electrive.com

TYPES OF FUEL CELLS
  1. Alkaline Fuel Cells
  2. Direct Methanol Fuel Cells
  3. Molten Carbonate Fuel Cells
  4. Phosphoric Acid Fuel Cells
  5. Solid Oxide Fuel Cells
  6. Polymer Electrolyte Membrane / Proton Exchange Membrane Fuel Cells
CATEGORIZATION
  1. LOW TEMPERATURE & HIGH TEMPERATURE
  2. SOLID & LIQUID ELECTROLYTES
BASED ON TEMPERATURE
LOW TEMPERATURE:
  • Alkaline Fuel Cells
  • Phosphoric Acid Cells
  • Proton Exchange Membrane Fuel Cells
HIGH TEMPERATURE:
  • Molten Carbonate Fuel Cells
  • Solid Oxide Fuel Cells
BASED ON ELECTROLYTES
SOLID ELECTROLYTE:
  • Solid Oxide Fuel Cells
  • Molten Carbonate Fuel Cells
  • Proton Exchange Membrane Fuel Cells
LIQUID ELECTROLYTE:
  • Phosphoric Acid Fuel Cells
  • Alkaline Fuel Cells
Efficiencies for the Implementation in Vehicles

Fuel Cells  --  24 to 32 %
Battery     --  26 %
IC Engine  --  20 %

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