Fuel cell system and driving method thereof
AssigneeSamsung SDI Co., Ltd.
InventorsJun-Young Park, Jin-Hwa Lee, Seong-Jin An, Chi-Seung Lee, Jun-Won Suh
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Abstract
A method of driving a fuel cell system according to embodiments of the present invention includes supplying a first amount of oxidizer (which is less than a normal amount of oxidizer) to a fuel cell stack while continuously supplying fuel to the fuel cell stack, supplying a second amount of oxidizer (which is more than the normal amount) to the fuel cell stack, and supplying a third amount of oxidizer (which is the normal amount of oxidizer supplied in a normal driving state) to the fuel cell stack.
Claims16
A fuel cell system, comprising:
- a fuel cell stack configured to react a fuel with an oxidizer to generate electrical energy;
- an oxidizer supply unit configured to supply oxidizer to the fuel cell stack;
- and
- a controller configured to control the supply of oxidizer to the fuel cell stack from the oxidizer supply unit, wherein the controller is configured to sequentially deliver first, second and third amounts of oxidizer to the fuel cell stack, wherein the first amount of oxidizer is less than the third amount of oxidizer, and the second amount of oxidizer is greater than the third amount of oxidizer.
A method of driving a fuel cell system, comprising:
- providing the fuel cell system comprising a fuel cell stack;
- supplying a fuel to the fuel cell stack;
- first supplying a first amount of oxidizer to the fuel cell stack to reduce a voltage of the fuel cell stack;
- second supplying a second amount of oxidizer to the fuel cell stack;
- and
- third supplying a third amount of oxidizer to the fuel cell stack to thereby drive the fuel cell stack, wherein the first amount of oxidizer is less than the third amount of oxidizer, and the second amount of oxidizer is greater than the third amount of oxidizer, and wherein the fuel and oxidizer react in the fuel cell stack to generate electrical energy.
Dependencies are inferred from the claim text.