Fuel cell stack

US10998560B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10998560-B2
Application numberUS-201916371876-A
CountryUS
Kind codeB2
Filing dateApr 1, 2019
Priority dateNov 10, 2014
Publication dateMay 4, 2021
Grant dateMay 4, 2021

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A fuel cell stack 11 includes a cell laminate 21 composed of a plurality of stacked cells 20 , and air is introduced from an anode end part 21 a of the cell laminate 21 . The cell laminate 21 has two end cells 24 installed adjacently to a cathode end part 21 b side, thereby providing the cathode end part 21 b with high thermal insulation properties.

First claim

Opening claim text (preview).

What is claimed is: 1. A method for manufacturing a fuel cell stack including a cell laminate composed of a plurality of stacked cells, wherein an oxygen gas is introduced from a gas introduction end part at an anode end part on one side of the cell laminate, the method comprising: providing the cell laminate with a plurality of non-power-generating end cells which each have thermal insulation properties that are higher than those of other cells of the cell laminate, providing at least one of the non-power-generating end cells at both ends of the cell laminate, providing a greater number of the non-power-generating end cells at a cathode end part on a far side of the cell laminate from the gas introduction end part than the number of the non-power-generating end cells provided at the gas introduction end part, providing a rust-proof plate between the non-power-generating end cells and a current-collecting plate at the cathode end part, and selecting the number of non-power-generating end cells according to a temperature difference between the anode end part and the cathode end part with respect to a central part of the cell laminate. 2. The method of claim 1 , wherein the number of end cells provided at the gas introduction end part is one, and the number of end cells provided at the end part on the far side of the cell laminate from the gas introduction end part is two.

Assignees

Inventors

Classifications

  • with solid or matrix-supported electrolytes · CPC title

  • characterised by internal manifolds · CPC title

  • Storage of heat in the fuel cell system · CPC title

  • of other components of a fuel cell or fuel cell stacks · CPC title

  • Fuel cells with polymeric electrolytes · CPC title

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Frequently asked questions

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What does patent US10998560B2 cover?
A fuel cell stack 11 includes a cell laminate 21 composed of a plurality of stacked cells 20 , and air is introduced from an anode end part 21 a of the cell laminate 21 . The cell laminate 21 has two end cells 24 installed adjacently to a cathode end part 21 b side, thereby providing the cathode end part 21 b with high thermal insulation properties.
Who is the assignee on this patent?
Toyota Motor Co Ltd
What technology area does this patent fall under?
Primary CPC classification H01M8/249. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue May 04 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).