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1-A generalized cycle life model of rechargeable Li-ion batteries  [复制链接]

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Abstract
A generalized first principles based charge–discharge model to simulate the cycle life behavior of rechargeable Li-ion batteries has beendeveloped. The model is based on loss of the active lithium ions due to the electrochemical parasitic reaction and rise of the anode filmresistance. The effect of parameters such as depth of discharge (DOD), end of charge voltage (EOCV) and overvoltage of the parasitic reactionon the cycle life behavior has been quantitatively analyzed. The experimental results obtained at charge rate of 1C, discharge rate of 0.5 C,EOCV of 4.0V and DOD of 0.4 were used to validate the cycle life model. Good agreement between the simulations and the experiments hasbeen achieved up to 1968 cycles. Simulation of a battery subjected to multiple cycling regimes has also been demonstrated.© 2005 Elsevier Ltd. All rights reserved.

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