Products
Battery heat sink: Vapor chamber
As the demand for electric vehicles continues to increase, accidents such as fires and reduced battery
life are occurring due to internal heat, which is one of the causes of secondary battery accidents.
To solve this problem, automakers are actively conducting research on secondary battery heat dissipation
systems.
In particular, many studies are being conducted because the Vapor Chamber, a battery heat
sink,
maintains a constant pressure in a closed space in a vacuum state, rapidly diffuses contact
heat inside and discharges it to the outside.
Korea’s only lead tab film localization and manufacturing success
Japanese companies occupy more than 90% of the global lead tab film market.
Under these circumstances, Best Energy is the only company that specializes in manufacturing lead tab
films in Korea. Best Energy has succeeded in developing lead tab films for secondary batteries through
many years of polymer research.
In particular, we contributed to the localization of secondary battery materials by using all raw
materials used to manufacture them only domestically.
The lead tab film manufactured in this way has been tested in the safety field by China's top three
secondary battery manufacturers for 6 months and its performance has been recognized.
Need for Aluminum Vapor Chamber
Vapor chambers are currently manufactured based on copper (Cu). However, the high price of copper, yield
problem due to brazing method (about 80%), and heavy weight are considered problems. Best energy is to
solve this problem with aluminum (Al)-based vapor chambers, not copper-based ones.
Aluminum costs only 30% compared to copper and its specific gravity is also ⅓ compared to copper, making
it the best material to maintain performance while reducing price and weight.