Personal Info:
Real Name: Lucy Lane
Also Known As: Lucy Troupe
Place Of Birth: Unknown
First Appearance: Man of Steel Vol.1 #5 (1986) Modern Age Villain
Known Associates: General Sam Lane, Codename: Assassin, Atlas, Metallo, Reactron, Mirabai
Group Affiliation: Project 7734
Base Of Operations: Metropolis
Grudges: Supergirl and Superman
Creators: John Byrne
Originally possessing no inherent powers, her power suit altered her DNA (via a containment field) to replicate those of a Kryptonian and as such potentially made her capable of all the same feats they possess under the yellow sun.
Enhanced Abilities: Superwoman has vast super human strength, super-speed and endurance.
Invulnerability: Superwoman is practically invulnerable to any form of physical or energy attack.
Super-Breath: Superwoman can freeze a target with her breath or create strong gusts of wind.
Flight: Superwoman is able to fly.
Super-Hearing Superwoman has the ability to hear any sound at any volume or pitch.
Super-Vision: Superwoman has X-ray, Electro-magnetic, Microscopic, Infrared and Telescopic visions.
Heat Vision: Superwoman has the ability to fire beams of intense heat at a target by looking.
Lucy, like her big sister Lois, grew up an army brat under their father, Sam Lane. Lois was always more of a daredevil and a troublemaker, however. Owing to her being the younger child, Lucy was sometimes more spoiled by her strict father (or at least, he was more inclined to get over her failings).
When she was grown up, Lucy moved to Metropolis and dated many of the boys in Lois's circle of friends, eventually coming to see this as failed attempts to live her life through her more successful sister. Lucy left Metropolis and Superman's immediate circle of friends for many years. During this time, she did not respond well to her father's death in the Imperiex war. Trying to honour his memory, she joined the military.
Lucy became bitter and angrier than blaming Lois for General Sam Lane's death during the war against Imperiex. Essentially, believing Lois broke his heart by putting her love for Superman before her duties as a daughter. Unbeknown to her, General Lane was still alive, and working with the government on projects designed to deal with Kryptonians on Earth. Lucy and her father worked together on a project that resulted in Lucy Lane gaining super powers, wearing a super suit that was a magical creation of Mirabai of the Forlorn. The suit duplicated the abilities of a Kryptonian but protected her from Kyptonite poisoning.
Superwoman at DC Database
Superwoman at Comic Vine