UNIST and KAIST Develop Electrolyte That Extends Lithium-Metal Battery Life
Batteries with the new electrolyte held about 80% of their initial capacity after 150 cycles at 25°C charged to 4.5V, researchers say.
Researchers at UNIST and KAIST have developed a new electrolyte for next-generation lithium-metal batteries that extends battery lifespan to about three times that of conventional batteries, according to inews24.com.
Batteries using the new electrolyte retained about 80% of their initial capacity after 150 charge-discharge cycles at 25°C charged to 4.5V. Batteries using a conventional carbonate-based electrolyte dropped below 80% of initial capacity after about 50 cycles.
The new electrolyte also reduced gas generation from electrolyte decomposition and nickel dissolution from the cathode, the researchers said.
The work was carried out by a team including Song Hyun-kon and Seo Dong-hwa.
Quick answers
How long does the new lithium-metal battery electrolyte last?
Batteries using it retained about 80% of their initial capacity after 150 charge-discharge cycles at 25°C charged to 4.5V.
How does it compare to conventional electrolytes?
Batteries with a conventional carbonate-based electrolyte dropped below 80% of initial capacity after about 50 cycles.
Who developed the electrolyte?
Researchers at UNIST and KAIST, including Song Hyun-kon and Seo Dong-hwa.