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Usable capacity refers to the maximum capacity in theory that a fully charged battery can release, and is often used as an indicator in state of health (SOH) estimation for lithium ion batteries. The traditional method for measuring usable capacity is mainly based on voltage data in the discharge process with a constant current. However, the discharge current of a lithium ion battery in operation...
Impedance as one of the most important parameters of a battery has been studied a lot. While most works only consider the impedance is related with the state-of-charge (SOC), very little attention has been put upon the rate dependence of impedance. In this work, the impedance of a battery has been considered to be dependent on the SOC and the charging or discharging rate. A series of charging and...
Reliability modeling has become an important issue in some special areas such as military and aerospace. Most existing reliability estimation methods are usually limited in these areas because of the requirement of large sample. Furthermore, the large sample test is impractical in terms of implementation expense and time, since most product have the characteristics of high reliability, high cost and...
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