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Hybrid fuel cell system with battery capacitor energy storage system

  • US 7,427,450 B2
  • Filed: 12/10/2004
  • Issued: 09/23/2008
  • Est. Priority Date: 12/10/2004
  • Status: Expired due to Fees
First Claim
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1. A fuel cell system comprising:

  • an electrical power bus line;

    a fuel cell stack electrically coupled to the power bus line;

    a battery electrically coupled to the power bus line; and

    a capacitor electrically coupled to the power bus line in series with the battery, said capacitor providing voltage matching for voltage swings on the power bus line.

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