Patent · US Active

Composite phase change material

US9099762B2 · kind B2 · utility

10Cited by

0References

22Claims

0Family size

Assignee

Chervon (HK) Limited · CN

Inventors

Dezhong Yang · Nanjing, CN
Hao Du · San Jose, US
Jianjun Shuang · 安丰镇, CN

Key dates

Filing date	Apr 11, 2013
Grant date	Aug 4, 2015
Priority date	—
Expiry date	Apr 11, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A composite phase change material and the method for forming the material is disclosed herein. Thereof, especially a composite phase change material for lithium battery cooling, comprising polyethylene glycol, silica vehicle and composite flame retardant comprising graphite and polymer, wherein the weight ratio of the graphite and polymer is approximately 1:2. The composite phase change material according to the invention has a good stability and a thermal conductivity, a small corrosivity, a high phase transition enthalpy of 150-350 J/g, and a morphological stability during phase change. Moreover, addition of high thermal conductivity material and composite flame retardant ensures good thermal conductivity and excellent flame retardant effect of the phase change material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.