The Kree Energy Swords were the pair of swords that can be charged with energy and were used mainly by Korath.
During his time in Starforce, Korath used a pair of energy swords as his main melee weapon. During an Ambush on Torfa, he wielded them to fight a group of Skrulls. Later in the Battle at Mar-Vell's Laboratory he tries to use them against Vers who had turned against them, but to no avail, as she breaks one of the swords and defeats Korath.
When charged with energy, these swords glow with a cyan color, similar to the energy signature of Magnitron Gauntlets. Korath is seen cutting a Skrull Blaster and a Table football in half with these swords.