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Direct methanol fuel cell system

A fuel cell system and methanol fuel technology, applied in fuel cell additives, fuel cell heat exchange, etc., can solve problems such as unstable DMFC system settings and fuel cell stacks being easily affected, so as to reduce the center of gravity, contain the impact, and improve The effect of stability

Inactive Publication Date: 2006-03-01
YAMAHA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the setup of the DMFC system is relatively unstable
Also, the fuel cell stack is susceptible to impacts such as from the upper side of the DMFC system

Method used

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Embodiment Construction

[0038] Embodiments of the present invention are described below with reference to the accompanying drawings.

[0039] Referring to FIGS. 1 to 5, a direct methanol fuel cell system (hereinafter simply referred to as "fuel cell system") 1 according to an embodiment of the present invention is constituted, for example, as a stationary system having an output of about 400W to 500W, including a substantially box-shaped (cuboid shape) box F.

[0040] A fuel cell stack (hereinafter simply referred to as "battery stack") 3 is fixed inside the case F. As shown in FIG. The battery pack 3 is formed by stacking (stacking) a plurality of single cells capable of generating electric energy by electrochemical reaction of hydrogen and oxygen in methanol. Each unit cell constituting the fuel cell stack 3 includes an electrolyte (electrolyte membrane) composed of a solid molecular membrane or the like, and a fuel electrode (anode) and an air electrode (cathode) facing each other across the elec...

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PUM

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Abstract

A direct methanol fuel cell system (1) is disclosed which ensures stable placement and enables to reduce influence of impact from outside to a fuel cell stack (3). The fuel cell system (1) comprises an aqueous solution tank (7) for containing an aqueous methanol solution, a fuel tank (5) for containing a methanol fuel to be supplied to the aqueous solution tank (7), and a fuel cell stack (3) to which the aqueous methanol solution is supplied from the aqueous solution tank (7) for generating electrical energy through electrochemical reaction. In this system, the fuel tank (5) and the aqueous solution tank (7) are respectively arranged in a higher position relative to the fuel cell stack (3).

Description

technical field [0001] The present invention relates to a direct methanol fuel cell system, more specifically, the present invention relates to a direct methanol fuel cell system which does not modify the methanol but directly uses it for power generation. Background technique [0002] As a fuel cell system that uses methanol as fuel to generate electricity, a direct methanol fuel cell (DMFC (Direct Methanol Fuel Cell), hereinafter referred to as DMFC) system that uses methanol to directly generate electricity is being researched and developed. [0003] In the DMFC system, since facilities for reforming methanol are not required, the entire system can be configured simply and lightly, and application to various applications is expected. [0004] As an example of a DMFC system, Document 1 discloses a DMFC system with an output of 2.5 kW. [0005] Non-Patent Document 1: Holger Janssen, Marcus Noelke, Walter Zwaygardt, Hendrik Dohle, Juergen Mergel, Detlef Stolten, "DMFC SYSTE...

Claims

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Application Information

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IPC IPC(8): H01M8/04H01M8/04007
CPCY02E60/523Y02E60/50
Inventor 村松恭行幸田秀夫盐泽总一
Owner YAMAHA MOTOR CO LTD
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