Direct methanol fuel cell system, fuel cartridge, and memory for fuel cartridge

Abstract

A fuel cartridge to be connected to a direct methanol fuel cell power generating device includes a spare fuel tank which stores a liquid fuel and is to be connected to the direct methanol fuel cell power generating device and a harmful substance trap member. The spare fuel tank stores a liquid fuel and is to be connected to the direct methanol fuel cell power generating device. The harmful substance trap member is fixed to the spare fuel tank and is to be connected to the direct methanol fuel cell power generating device. The harmful substance trap member contains a harmful substance trap material which traps gaseous harmful substances exhausted from the direct methanol fuel cell power generating device.

1 . A direct methanol fuel cell system comprising:
 a power generating unit including an anode electrode, a cathode electrode, and an electrolyte layer provided between the anode electrode and the cathode electrode;   a fuel tank which stores a first liquid fuel containing methanol to be supplied to the anode electrode; and   a fuel cartridge comprising a spare fuel tank which stores a second liquid fuel for replenishment in the fuel tank which contains methanol, and a harmful substance trap member which is fixed to the spare fuel tank and contains a harmful substance trap material which traps a gaseous harmful substance exhausted from the fuel tank.   
   
   
       2 . The direct methanol fuel cell system of  claim 1 , further comprising a memory which is fixed to the spare fuel tank, and stores at least one of information about the spare fuel tank and information about the second liquid fuel. 
   
   
       3 . The direct methanol fuel cell system of  claim 1 , wherein the harmful substance trap member includes a trap material container having a gas exhaust port, a gas diffusion passage which is formed in the trap material container, and a gas diffusion hole opened in a wall of the gas diffusion passage, and the harmful substance trap material is filled in a space between an inner side of the trap material container and a wall of the gas diffusion passage. 
   
   
       4 . The direct methanol fuel cell system of  claim 1 , wherein the first liquid fuel is a methanol aqueous solution. 
   
   
       5 . The direct methanol fuel cell system of  claim 1 , wherein the second liquid fuel is a methanol aqueous solution having a concentration of a range of 95% or more to less than 100%. 
   
   
       6 . The direct methanol fuel cell system of  claim 1 , wherein the first liquid fuel is a methanol aqueous solution and the second liquid fuel is a methanol aqueous solution whose concentration is higher than that of the first liquid fuel. 
   
   
       7 . The direct methanol fuel cell system of  claim 1 , wherein the harmful substance trap material includes at least one powder of active carbon and silica gel. 
   
   
       8 . The direct methanol fuel cell system of  claim 1 , wherein the harmful substance trap material includes active carbon.