Cooling liquid and method for producing same, submerged energy storage device, data center, power consuming device

By treating nanoparticles with a combination of alkaline washing and fluorinated alkyl acid modification and ball milling, the problems of nanoparticle sedimentation and agglomeration in fluorinated liquid were solved, the thermal conductivity and insulation properties were improved, and long-term stability and efficient heat dissipation were achieved.

CN121852006BActive Publication Date: 2026-07-21HEFEI INST FOR PUBLIC SAFETY RES TSINGHUA UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEFEI INST FOR PUBLIC SAFETY RES TSINGHUA UNIV
Filing Date
2026-03-19
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing fluorinated liquids have limited thermal conductivity, and nanoparticles tend to settle and agglomerate in them, affecting long-term stability and insulation performance. They also cause problems such as increased pumping power consumption.

Method used

Nanoparticles with good dispersibility and long-term stability were prepared by using alkaline washing and fluorinated alkyl acid modification combined with ball milling. These modified nanoparticles were then mixed in a fluorinated liquid to form a thermally conductive network, thereby improving thermal conductivity and insulation properties.

Benefits of technology

This study achieves high thermal conductivity, insulation properties, and long-term stability of fluorinated liquids, avoids nanoparticle precipitation and aggregation, and broadens its application prospects.

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Abstract

The present application relates to the technical field of industrial oil, in particular to a kind of cooling liquid and preparation method thereof, submerged energy storage device, data center, electric equipment, the cooling liquid includes fluorinated liquid and nano-particle modified by fluorine-containing alkyl acid;The nano-particle modified by fluorine-containing alkyl acid is obtained by the method comprising the following steps: alkali washing to nano-particle raw material;Fluorine-containing alkyl acid is used to modify nano-particle;And ball milling.The cooling liquid can solve the problem that nano-particle is poor in stability, easy to precipitate and agglomerate, improve the long-term stability and dispersibility of nano-particle in fluorinated liquid;While effectively improving the insulation performance and heat dissipation performance of fluorinated liquid, with good application prospect.
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