Patent ID: 7335430
Filing Date: 2008-02-26
Classification: B60L,H01M,Y02E,Y02T

Abstract:
1. A fuel cell system comprising: a high-pressure hydrogen tank storing high pressure hydrogen; a fuel cell consuming the hydrogen stored in the high-pressure hydrogen tank as fuel gas; a hydrogen supply line connecting the high-pressure hydrogen tank to the fuel cell; a primary decompressing means provided on the hydrogen supply line and decompressing the hydrogen to a first prescribed pressure; a secondary decompressing means provided in the downstream side of the primary decompressing means on the hydrogen supply line, and decompressing the hydrogen decompressed to a first prescribed pressure to a second prescribed pressure; a hydrogen pipe connected between the primary decompressing means and the secondary decompressing means on the hydrogen supply line, and is used for hydrogen transfer between the hydrogen supply line and the hydrogen storage alloy tank; a hydrogen storage alloy tank composed from a hydrogen storage alloy and thermal-exchangeably connected to the fuel cell; and a controlling means for introducing the hydrogen of the first prescribed pressure into the hydrogen storage alloy tank from the hydrogen supply line through the hydrogen pipe during the warm-up of the fuel cell, and for releasing hydrogen having a pressure higher than the first prescribed pressure to the hydrogen supply line from the hydrogen storage alloy tank through the hydrogen pipe after the warm-up of the fuel cell.