Title :
Time-to-failure estimation for batteries in portable electronic systems
Author :
Rakhmatov, Daler ; Vrudhula, Sarma B K
Author_Institution :
Dept. of Electr. & Comput. Eng., Arizona Univ., Tucson, AZ, USA
Abstract :
Nonlinearity of the energy source behavior in portable systems needs to be modeled in order for the system software to make energy-conscious decisions. We describe an analytical battery model for predicting the battery time-to-failure under variable discharge conditions. Our model can be used to estimate the impact of various system load profiles on the energy source lifetime. The quality of our model is evaluated based on the simulation of a lithium-ion battery
Keywords :
failure analysis; lithium; secondary cells; Li; analytical model; energy source lifetime; lithium ion battery; nonlinearity; portable electronic system; system software; time-to-failure; Analytical models; Batteries; Circuit simulation; Degradation; Fault location; Low power electronics; Permission; Power system modeling; System software; Voltage;
Conference_Titel :
Low Power Electronics and Design, International Symposium on, 2001.
Conference_Location :
Huntington Beach, CA
Print_ISBN :
1-58113-371-5
DOI :
10.1109/LPE.2001.945380
