Latent heat storage material

Patent metadata

Field	Value
Publication number	US-9650554-B2
Application number	US-201615216663-A
Country	US
Kind code	B2
Filing date	Jul 21, 2016
Priority date	Aug 6, 2015
Publication date	May 16, 2017
Grant date	May 16, 2017

Abstract

A latent heat storage material contains sodium acetate, water, and a supercooling stabilizer containing a group 11 metal-containing compound, and has a group 11 metal concentration of 2.0×10 5 ppm or less.

First claim

What is claimed is:

1. A latent heat storage material comprising:
sodium acetate;
water; and
a supercooling stabilizer,
wherein the supercooling stabilizer includes silver (I) nitrate, and
the concentration of the silver (I) nitrate is not less than 5.0×10 −3 ppm and not more than 2.0×10 3 ppm.

2. A latent heat storage material comprising:
sodium acetate;
water; and
a supercooling stabilizer,
wherein the supercooling stabilizer includes silver (I) oxide, and
the concentration of the silver (I) oxide is not less than 40 ppm and not more than 1.0×10 5 ppm.

3. A latent heat storage material comprising:
sodium acetate;
water; and
a supercooling stabilizer,
wherein the supercooling stabilizer includes copper (II) oxide, and
the concentration of the copper (II) oxide is not less than 5.0×10 −2 ppm and not more than 6.0×10 4 ppm.

Assignees

• Panasonic Corp

Inventors

• Suito Kazuaki
• Suzuki Motohiro
• Machida Hironobu
• Takeguchi Shinsuke
• Shii Kentaro

Classifications

• C09K5/063 Primary

  Materials absorbing or liberating heat during crystallisation; Heat storage materials · CPC title

• C09K5/00

  Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion · CPC title