Title:
HIGH-THROUGHPUT CARBON PAPER FOR FUEL CELL, AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/188891
Kind Code:
A1
Abstract:
A high-throughput carbon paper for a fuel cell. The carbon fiber paper has a thickness of 0.12 to 0.2 mm, a volume density of 0.25 to 0.40 g/cm 3, a porosity of 78 to 85%, and a permeability ≥ 2200 ml · mm (cm 2 · hr · mmyq); the surface resistivity is ≤ 100 m Ω · cm; and the thermal conductivity is ≥ 1.5 W (m · K). The carbon paper is prepared by stacking two to six layers of carbon fiber prepreg paper sheets layer by layer, performing continuous overall perforation, and then carrying out high-temperature treatment. A water-gas rapid channel is formed in the thickness direction of the carbon paper on the basis of dry method of paper making combined with a regular perforation design, facilitating high-throughput airflow channels, while retaining the lateral diffusion ability of water vapor in irregular pore channels.
Inventors:
LU XUEFENG (CN)
Application Number:
PCT/CN2022/081689
Publication Date:
September 15, 2022
Filing Date:
March 18, 2022
Export Citation:
Assignee:
SHANGHAI JAZZ NEW MATERIAL TECH CO LTD (CN)
International Classes:
B32B9/00; B32B9/04; B32B38/08; D04H1/4209; D04H1/4242; D06N3/00; D21H13/50; H01M8/02; B32B37/06
Foreign References:
| CN113135000A | 2021-07-20 | |||
| CN110129992A | 2019-08-16 | |||
| CN110783593A | 2020-02-11 | |||
| TW201216551A | 2012-04-16 | |||
| JP2008190072A | 2008-08-21 | |||
| CN1884689A | 2006-12-27 |
Attorney, Agent or Firm:
BEIJING MINGDUN LAW FIRM (CN)
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