Gas-adsorbing material and vacuum insulation material including the same

Patent metadata

Field	Value
Publication number	US-2016114310-A1
Application number	US-201514920261-A
Country	US
Kind code	A1
Filing date	Oct 22, 2015
Priority date	Oct 24, 2014
Publication date	Apr 28, 2016
Grant date	—

Abstract

Example embodiments relate to a gas-adsorbing material capable of reducing the generation amount of combustible gas without deteriorating gas-adsorbing performance, and a vacuum insulation material including the gas-adsorbing material. The gas-adsorbing material may include a metal selected from at least one of Li, V, Zr, or an alloy including the same, which adsorbs a nitrogen gas and is inactivated by moisture as a nitrogen adsorbing agent, and an additive added to the metal. The metal is attached on the particle surface of the additive. The metal may be an alloy including Li and an alkaline-earth metal, for example, Ba—Li alloy. The additive absorbs moisture, and is selected from at least one of an inorganic oxide, a transition metal, an oxide of a transition metal, an alloy including a transition metal, and a mixture including a transition metal.

First claim

1 . A gas-adsorbing material comprising a gas-adsorbing composition comprising:
a metal that adsorbs nitrogen gas and that is inactivated by moisture, which is at least one of Li, V, and Zr, or an alloy comprising the same; and an additive in a form of a plurality of particles, the metal adhered to a surface of the additive.

2 . The gas-adsorbing material of claim 1 , wherein the metal is an alloy comprising lithium (Li) and an alkaline-earth metal.

3 . The gas-adsorbing material of claim 2 , wherein the metal is an Li—Ba alloy.

4 . The gas-adsorbing material of claim 1 , wherein the additive is at least one of an inorganic oxide, a transition metal, an oxide of a transition metal, an alloy comprising a transition metal, and a mixture comprising a transition metal.

5 . The gas-adsorbing material of claim 4 , wherein the inorganic oxide is an oxide of at least one alkaline-earth metal.

6 . The gas-adsorbing material of claim 4 , wherein the inorganic oxide is a calcium oxide.

7 . The gas-adsorbing material of claim 4 , wherein the transition metal is at least one of Ti, Ni, or Fe.

8 . The gas-adsorbing material of claim 1 , further comprising a moisture-absorbing material.

9 . The gas-adsorbing material of claim 8 , wherein the moisture-absorbing material coats the gas-adsorbing material comprising a metal and an additive, wherein the moisture-absorbing material is disposed in a region exposed to a target gas in a target gas adsorbing region of the gas-adsorbing composition.

10 . The gas-adsorbing material of claim 1 , wherein the metal is admixed with the additive in the gas-adsorbing composition in a ratio such that an amount of a combustible gas generated by the gas-adsorbing material on contact with water is less than or equal to about 200 cc/g.

11 . A vacuum insulation material comprising the gas-adsorbing material according to claim 1 and exerting an insulating effect when placed in a thermally conductive region in an internal environment set under a reduced pressure.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Sato Nagahisa
• Kamitani Ryosuke
• Nagayama Kenichi
• Fukuzaki Tomokazu

Classifications

• B01J20/2805

  Sorbents inside a permeable or porous casing, e.g. inside a container, bag or membrane · CPC title

• B01J20/3204

  Inorganic carriers, supports or substrates · CPC title

• B01J20/18

  Synthetic zeolitic molecular sieves · CPC title

• B01J20/3293

  Coatings on a core, the core being particle or fiber shaped, e.g. encapsulated particles, coated fibers · CPC title

• B01J20/06

  comprising oxides or hydroxides of metals not provided for in group B01J20/04 · CPC title