Hydrogen-releasing film

Patent metadata

Field	Value
Publication number	US-10439185-B2
Application number	US-201515318856-A
Country	US
Kind code	B2
Filing date	Jun 12, 2015
Priority date	Jun 16, 2014
Publication date	Oct 8, 2019
Grant date	Oct 8, 2019

Abstract

The objective of the present invention is to provide a hydrogen-releasing film, a composite hydrogen-releasing film and a hydrogen-releasing laminated film that are not prone to embrittlement in the usage environmental temperatures of electrochemical elements. The hydrogen-releasing film containing an alloy, wherein the alloy is a Pd—Au alloy, and the Au content in the Pd—Au alloy is 15 mol % or more.

First claim

The invention claimed is:

1. A hydrogen-releasing film containing an alloy, wherein the alloy is a Pd—Au alloy consisting of Pd and Au, and the Au content in the Pd—Au alloy is 30 to 55 mol %.

2. The hydrogen-releasing film according to claim 1 , wherein the film thickness t and the film area s satisfy the following expression 1:
t/s< 41.1 m −1   <Expression 1>

3. A composite hydrogen-releasing film, comprising the hydrogen-releasing film according to claim 1 on one surface or both surfaces of a metal layer.

4. A hydrogen-releasing laminated film, comprising a support on one surface or both surfaces of the hydrogen-releasing film according to claim 1 .

5. The hydrogen-releasing laminated film according to claim 4 , wherein the support is a porous body having an average pore diameter of 100 μm or less.

6. The hydrogen-releasing laminated film according to claim 4 , wherein a raw material of the support is at least one kind selected from the group consisting of polytetrafluoroethylene, polysulfone, polyimide, polyamide-imide, and aramid.

7. A safety valve for an electrochemical element, wherein the valve is provided with the hydrogen-releasing film according to claim 1 .

8. An electrochemical element, wherein the element is provided with the safety valve according to claim 7 .

9. The electrochemical element according to claim 8 , wherein the electrochemical element is an aluminum electrolytic capacitor or a lithium ion battery.

10. A hydrogen-releasing method comprising using the hydrogen-releasing film according to claim 1 .

11. The hydrogen-releasing method according to claim 10 , wherein hydrogen is released in an environment of 150° C. or less.

Assignees

• Nitto Denko Corp

Inventors

• Fukuoka Takahiro
• Ishii Kyoko
• Masaki shunsuke
• Hata Kenta
• Yukawa Hiroshi
• Nanbu Tomonori

Classifications

• H01G11/14

  Arrangements or processes for adjusting or protecting hybrid or EDL capacitors (emergency protective circuit arrangements specially adapted for capacitors, and effecting automatic switching in the event of an undesired change from normal working conditions H02H7/16; emergency protective circuit arrangements for limiting excess current or voltages without disconnection H02H9/00) · CPC title

• Y02E60/13

  Energy storage using capacitors · CPC title

• H01G9/12 Primary

  Vents or other means allowing expansion · CPC title

• C22C5/04

  Alloys based on a platinum group metal · CPC title

• H01M10/0525

  Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title