Yardney, which includes Lithion (Li-ion division), is a subsidiary of Ener-Tek International, Inc., a small U.S. owned business with approximately 150 employees. Yardney has a long history of providing successful solutions to difficult problems related to the development of power sources. Since 1944, Yardney has specialized in technically challenging applications that emphasize high levels of performance and reliability and has repeatedly demonstrated the capability of providing innovative solutions for applications that demand state-of-the-art performance. Historically, Yardney has made notable technological advances in the silver-zinc, silver-cadmium, magnesium-silver chloride, nickel-hydrogen, lithium-thionyl chloride, metal-air and lithium-ion battery chemistries, and is an acknowledged leader in the design, development and fabrication of high reliability cells, batteries and battery systems