Switch array system for thin film lithium microbatteries

• Published in: Journal of power sources 2004-10, Vol.136 (2), p.401-407
• Main Authors: Sukumar, Vinesh, Alahmad, Mahmoud, Buck, Kevin, Hess, Herbert, Li, Harry, Cox, Dave, Zghoul, Fadi Nessir, Jackson, Jeremy, Terry, Stephen, Blalock, Ben, Mojarradi, M.M., West, W.C., Whitacre, J.F.
• Format: Article
• Language: English
• Subjects: Applied sciences; Direct energy conversion and energy accumulation; Electrical engineering. Electrical power engineering; Electrical power engineering; Electrochemical conversion: primary and secondary batteries, fuel cells; Energy; Energy. Thermal use of fuels; Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc; Exact sciences and technology; Fuel cells; LDMOSFET; Microbattery; Micropower; SOI
• ISSN: 0378-7753; 1873-2755
• DOI: 10.1016/j.jpowsour.2004.03.033

Integrated microbatteries are currently being developed to provide reliable low-noise voltage sources for system-on-a-chip applications by Jet Propulsion Laboratory (JPL). These microbatteries help provide localized current capacities or embedded power supplies at the chip level for space exploration. This paper presents a design approach for charging and discharging microbatteries. Maximum flexibility in terms of voltages and currents are also obtained through the use of a switching matrix. The microbatteries used for the design are rated at 50 nAh capacity and are solid-state lithium electrolyte based. The designs are built using Microwave Silicon-on-Insulator process.