HYDROGEN DISCHARGE FILM

• Main Authors: MASAKI TOSHISUKE, ISHII KYOKO, YUGAWA HIROSHI, FUKUOKA TAKAHIRO, HATA KENTA, NANBU TOMONORI
• Format: Patent
• Language: English; Japanese
• Published: 21.09.2017
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; ELECTRICITY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SEPARATION; TRANSPORTING

PROBLEM TO BE SOLVED: To provide hydrogen discharge film hardly embrittled at a use environment temperature of an electrochemical element and hardly deteriorated by a gas discharged out of an organic material, complex hydrogen discharge film, hydrogen discharge laminated film, and a safety valve for an electrochemical element equipped with the hydrogen discharge film, complex hydrogen discharge film, and hydrogen discharge laminated film.SOLUTION: A hydrogen discharge film 2 consisting of an alloy containing Pd and Au with an Au content in the alloy containing Pd and Au by 40-55 mol% with the following expression 1 satisfied by the film thickness t and the film area s, a complex hydrogen discharge film 1 having the hydrogen discharge film 2 on one face or both faces of a metal layer 4, and a hydrogen discharge laminated film 1 having the support 4 on one face or both faces of the hydrogen discharge film 2 or the complex hydrogen discharge film 1, and a safety valve for an electrochemical element equipped with these films.<Expression 1>t/s<41.1 m-1.SELECTED DRAWING: Figure 1 【課題】電気化学素子の使用環境温度で脆化しにくく、有機材料から放出されるガスによって劣化しにくい水素排出膜、複合水素排出膜、水素排出積層膜、及び当該水素排出膜、複合水素排出膜、水素排出積層膜を備えた電気化学素子用安全弁の提供。【解決手段】ＰｄとＡｕを含む合金で、ＰｄとＡｕを含む合金中のＡｕの含有量が４０〜５５ｍｏｌ％であり、膜厚ｔと膜面積ｓが下記式１を満たす水素排出膜２、及び金属層４の片面又は両面に水素排出膜２を有する複合水素排出膜１、さらに水素排出膜２、又は複合水素排出膜１の片面又は両面に支持体４を有する水素排出積層膜１、及びこれらの膜を備えた電気化学素子用安全弁。〈式１〉ｔ／ｓ＜４１．１ｍ−１【選択図】図１