Battery module

This invention describes a battery module designed for safety and efficient cooling. It arranges flat, flexible batteries vertically within a case, then fills the case with two different liquids. A heavier liquid sits at the bottom, cooling the lower parts of the batteries, while a lighter liquid floats on top. The lower liquid is specifically designed to have a higher thermal conductivity, at least 0.5 W/m·K, for better heat transfer.

Why it matters: Since 2017, the push for higher energy density and faster charging in electric vehicles has dramatically increased the need for advanced battery thermal management. New dielectric coolants with improved thermal properties and safety profiles may now be available to meet the specific liquid requirements of this design.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: ModerateTwo specific liquids, sealed module case

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