# US 10,374,202 B2 · Hydrogen-releasing film

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- Number: US 10,374,202 B2
- Document ID: US10374202B2
- Status: Granted
- Kind: B2
- Application number: 15/318,856
- Filed: 2015-06-12
- Published: 2017-05-11
- Granted: 2019-08-06
- Earliest claimed: 2014-06-16
- Assignees: Nitto Denko Corporation
- Applicants: Nitto Denko Corporation
- Inventors: Takahiro Fukuoka; Kyoko Ishii; Shunsuke Masaki; Kenta Hata; Hiroshi Yukawa; Tomonori Nanbu
- Web page: https://patentgrep.com/patent/US10374202B2

## CPC

- H01M 2/1264
- B01D 69/10: Supported membranes; Membrane supports
- B01D 69/12: Composite membranes; Ultra-thin membranes
- B01D 71/02: Inorganic material
- B01D 71/36: Polytetrafluoroethylene
- B01D 71/38: Polyalkenylalcohols; Polyalkenylesters; Polyalkenylethers; Polyalkenylaldehydes; Polyalkenylketones; Polyalkenylacetals; Polyalkenylketals
- H01G 9/045: based on aluminium
- H01G 9/12: Vents or other means allowing expansion
- H01G 11/14: 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)
- H01M 2/12
- H01M 2/1241
- H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
- C22C 5/04: Alloys based on a platinum group metal
- H01M 2200/20: Pressure-sensitive devices
- Y02E 60/13: Energy storage using capacitors
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)
- H01G: CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE (selection of specified materials as dielectric H01B3/00; capacitors having potential barriers H10D1/62, H10K10/10)
- C22C: ALLOYS (treatment of alloys C21D, C22F)
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## 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.

## Claims

### Claim 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 %.

### Claim 2 (depends on 1)

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>

### Claim 3 (depends on 1)

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

### Claim 4 (depends on 1)

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

### Claim 5 (depends on 4)

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.

### Claim 6 (depends on 4)

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.

### Claim 7 (depends on 1)

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

### Claim 8 (depends on 7)

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

### Claim 9 (depends on 8)

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

### Claim 10 (depends on 1)

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

### Claim 11 (depends on 10)

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