Polymer electrolyte fuel cell stack and operating method thereof
    1.
    发明授权
    Polymer electrolyte fuel cell stack and operating method thereof 失效
    聚合物电解质燃料电池堆及其操作方法

    公开(公告)号:US07459231B2

    公开(公告)日:2008-12-02

    申请号:US10469878

    申请日:2002-03-05

    IPC分类号: H01M8/04 H01M8/10 H01M8/24

    摘要: A fuel cell stack (10) includes a first sub-stack (12), a second sub-stack (14), and a third sub-stack (16) disposed in the flow direction of an oxidizing gas. An intermediate plate (18a) is interposed between the first and second sub-stacks (12, 14), and an intermediate plate (18b) is interposed between the second and third sub-stacks (14, 16). In this fuel stack (10), the flow of an oxidizing gas is set such that the oxidizing gas flows in series in the direction from the first sub-stack (12) to the third sub-stack (16). Between the sub-stacks additional oxidizing gas supplies (70,74) are provided through which oxidizing gas of lower humidity than the humidity of the oxidizing gas entering the first sub-stack is supplied. This arrangement allows an efficient management of the humidity water content of the oxidizing gas with sufficient moisturizing of the solid polymer membrane whilst avoiding excessive condensation of water vapour within the stack.

    摘要翻译: 燃料电池堆(10)包括沿氧化气体的流动方向设置的第一子堆(12),第二子堆(14)和第三子堆(16)。 中间板(18a)插入在第一和第二子堆叠(12,14)之间,并且中间板(18b)插入在第二和第三子堆叠(14,16)之间。 在该燃料堆(10)中,氧化气体的流动被设定为使得氧化气体沿从第一副堆叠(12)到第三子堆(16)的方向串联流动。 在副堆叠之间,提供另外的氧化气体供应源(70,74),通过该氧化剂供应源供应比进入第一子堆的氧化气体的湿度低的氧化气体。 这种布置允许通过足够的固体聚合物膜的保湿来有效地管理氧化气体的湿度含水量,同时避免堆叠内的水蒸气过度冷凝。

    Fuel cell stack
    2.
    发明授权
    Fuel cell stack 有权
    燃料电池堆

    公开(公告)号:US07368199B2

    公开(公告)日:2008-05-06

    申请号:US10970554

    申请日:2004-10-20

    IPC分类号: H01M8/10 H01M2/08

    CPC分类号: H01M8/247 H01M8/248

    摘要: A casing includes end plates and first through fourth side plates. The first and third side plates are short, and the second and fourth side plates are long. At least cross sectional areas or shapes of the first through fourth side plates are determined such that the sides of the end plates have substantially the same deflection in the stacking direction.

    摘要翻译: 壳体包括端板和第一至第四侧板。 第一和第三侧板是短的,第二和第四侧板是长的。 确定第一至第四侧板的至少横截面积或形状,使得端板的侧面在堆叠方向上具有基本上相同的偏转。

    Fuel cell stack
    3.
    发明申请
    Fuel cell stack 有权
    燃料电池堆

    公开(公告)号:US20050158604A1

    公开(公告)日:2005-07-21

    申请号:US10970554

    申请日:2004-10-20

    CPC分类号: H01M8/247 H01M8/248

    摘要: A casing includes end plates and first through fourth side plates. The first and third side plates are short, and the second and fourth side plates are long. At least cross sectional areas or shapes of the first through fourth side plates are determined such that the sides of the end plates have substantially the same deflection in the stacking direction.

    摘要翻译: 壳体包括端板和第一至第四侧板。 第一和第三侧板是短的,第二和第四侧板是长的。 确定第一至第四侧板的至少横截面积或形状,使得端板的侧面在堆叠方向上具有基本上相同的偏转。

    Fuel cell stack
    6.
    发明授权

    公开(公告)号:US06620540B2

    公开(公告)日:2003-09-16

    申请号:US09927968

    申请日:2001-08-10

    IPC分类号: H01M202

    CPC分类号: H01M8/247 H01M8/241 H01M8/242

    摘要: The fuel cell stack has a horizontal laminate of a plurality of fuel cell units and separators, each fuel cell unit being constituted by an electrolytic membrane sandwiched by an anode and a cathode, and fixing members disposed horizontally on both sides of the laminate, the laminate and the fixing members having a plurality of holes penetrating therethrough in a lamination direction, each hole receiving an insulator-coated rod for fastening the laminate in a lamination direction, an insulator surface of the insulator-coated rod being substantially in contact with an inner surface of each hole of the laminate.

    Fuel cell comprising a separator provided with coolant passages
    7.
    发明授权
    Fuel cell comprising a separator provided with coolant passages 有权
    燃料电池包括设置有冷却剂通道的分离器

    公开(公告)号:US06406809B1

    公开(公告)日:2002-06-18

    申请号:US09497576

    申请日:2000-02-03

    IPC分类号: H01M800

    摘要: Each of cooling medium flow passages provided for a first separator includes single main flow passage grooves communicating with a cooling medium inlet and a cooling medium outlet respectively, and branched flow passage grooves formed and branched between the main flow passage grooves. Accordingly, it is possible to greatly decrease the flow passage length. Therefore, it is possible to effectively avoid the occurrence of flow passage pressure loss in the superficial direction of the first separator, and it is possible to improve the system efficiency of the power generation.

    摘要翻译: 设置在第一分离器中的每个冷却介质流动通道包括分别与冷却介质入口和冷却介质出口连通的单个主流动通道槽,以及在主流动通道槽之间形成和分支的分支流动通道槽。 因此,能够大幅度地减小流路长度。 因此,能够有效地避免第一分离器的表面方向上的流路压力损失的发生,能够提高发电的系统效率。