- 专利标题: Systems and methods for refurbishing fuel cell stack components
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申请号: US17151373申请日: 2021-01-18
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公开(公告)号: US11824205B2公开(公告)日: 2023-11-21
- 发明人: Drew Paran , Ali Delkaninia , Kendall Lui , Tulin Akin
- 申请人: BLOOM ENERGY CORPORATION
- 申请人地址: US CA San Jose
- 专利权人: BLOOM ENERGY CORPORATION
- 当前专利权人: BLOOM ENERGY CORPORATION
- 当前专利权人地址: US CA San Jose
- 代理机构: THE MARBURY LAW GROUP PLLC
- 主分类号: H01M4/00
- IPC分类号: H01M4/00 ; H01M4/88 ; B23K26/0622 ; B23K26/354 ; H01M8/2404 ; B23K26/06 ; B23K26/36 ; H01M8/008 ; B23K26/362 ; B23K26/38
摘要:
A method of refurbishing a singulated fuel cell stack interconnect includes scanning a first pulsed laser beam on an air side of the interconnect to vaporize seal and corrosion barrier layer residue without vaporizing a metal oxide layer located on the air side of the interconnect below the corrosion barrier layer residue, and scanning a second pulsed laser beam which is different from the first pulsed laser beam on the exposed metal oxide layer on the air side of the interconnect to reflow the metal oxide layer without removing the metal oxide layer.
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