US 12,134,727 B2
Composite phase change material, application method of composite phase change material, and battery
Hao Wu, Dongguan (CN); Yongzhen Wang, Dongguan (CN); Xiaoxi Liu, Dongguan (CN); and Binglong Yin, Dongguan (CN)
Assigned to DONGGUAN NVT TECHNOLOGY LIMITED, Guangdong (CN)
Filed by DONGGUAN NVT TECHNOLOGY LIMITED, Dongguan (CN)
Filed on Mar. 30, 2021, as Appl. No. 17/218,094.
Claims priority of application No. 202010623183.8 (CN), filed on Jun. 30, 2020.
Prior Publication US 2021/0403781 A1, Dec. 30, 2021
Int. Cl. C09K 5/06 (2006.01); C08F 20/06 (2006.01); C08K 5/053 (2006.01); C08K 5/06 (2006.01); C08K 5/357 (2006.01); C08K 5/5397 (2006.01); H05K 1/02 (2006.01)
CPC C09K 5/06 (2013.01) [C08F 20/06 (2013.01); C08K 5/053 (2013.01); C08K 5/06 (2013.01); C08K 5/357 (2013.01); C08K 5/5397 (2013.01); H05K 1/0209 (2013.01); H05K 2201/06 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A composite phase change material, comprising:
65 to 80 parts of a phase change material by weight; and
20 to 35 parts of a binder by weight;
wherein,
the binder comprises an acrylate monomer having a molecular weight of 50 to 300, an acrylate polymer having a molecular weight of 500 to 2000, and an initiator; and
the phase change material has a core-shell structure, comprising a shell and a core wrapped in the shell; the shell being a mixture of polyphenoloxy resin and polyethylene glycol; and the core being modified paraffin wax; wherein a molecular weight of the polyphenoloxy resin is 30000 to 60000, a molecular weight of the polyethylene glycol is 4000 to 12000; and the polyphenoloxy resin and the polyethylene glycol are mixed in a mass ratio of 1:7 to 1:3.