Title:
【発明の名称】集中流体処理を採用したプラスチック小板燃料電池
Document Type and Number:
Japanese Patent JPH11510637
Kind Code:
A
Abstract:
Improved fuel cell stacks (1) constructed from a plurality of cells, each comprising a series of interrelated mono and bipolar collector plates (BSPs), which in turn are built up by lamination of a core of related non-conductive plastic or ceramic platelets (12) sandwiched between conductive microscreen platelets of metal or conductive ceramic or plastic with an electrode membrane (EMA) (5 A, B, C, D) between adjacent BSPs. The platelets, both metal and plastic of the composite BSPs, are produced from sheet material with through and depth features (18, 17) formed by etching, pressing, stamping, casting, embossing and the like. Adjacent plates each with correspondingly relieved features form serpentine channels within the resultant monolithic platelet/cell stack for integrated fluid and thermal management. The plastic platelets are particularly useful for PEM fuel cells employing H2 and Air/O2 as fuel. The platelets are easily made by printing (embossing) processes, and dies made by photolithographic etching for rapid redesign. Each BSP can be individually tailored to each type of membrane, fuel, and intra-cell location within the stack (1). As materials are cheap and easy to manufacture and assemble, lightweight fuel cells of very high power density are realizable. Industrial applicability includes both stationary and vehicular power supplies, in both micro and macro sizes.
Inventors:
Spear, Reginald G. Jr.
Franklin, Gerold Yee
Hayes, William A
Janke, David E
Franklin, Gerold Yee
Hayes, William A
Janke, David E
Application Number:
JP53498296A
Publication Date:
September 14, 1999
Filing Date:
May 17, 1996
Export Citation:
Assignee:
H Power Corporation
International Classes:
H01M8/02; H01M8/04; H01M8/24; (IPC1-7): H01M8/02; H01M8/04; H01M8/24
Attorney, Agent or Firm:
Masatake Shiga (1 person outside)