| Ad
|
concentration degradation rate, mAh·s−1
|
| Cfade, N
|
accumulated capacity fade in the Nth cycle, mAh |
| CIfade
|
upper and lower limits of the capacity degradation |
| Cnom
|
nominal capacity |
| Ea
|
activation energy, J·mol−1
|
| N |
number of cycles that the battery has experienced |
| n |
number of samples |
| R |
ideal gas constant, 8.314J mol−1·K−1
|
| T(t) |
time-dependence average battery temperature, K |
| tN
|
end time of the discharge process, s |
| Vi
|
measurement value |
| Xi
|
residual value |
| X |
average value of the capacity fading from 1 to i cycle |
| α |
confidence level |
| μ |
location parameter of normal distribution |
| μfade
|
mean of the random variable Cfade
|
| σ |
scale parameter of normal distribution |
| σfade
|
standard deviation of the random variable Cfade
|
| β |
shape parameter of Weibull distribution |
| η |
scale parameter of Weibull distribution |
| κ |
relative co-efficient of variation |
| ξ |
battery degradation rate |
| SEI |
solid electrolyte interface |
| BTMS |
battery thermal management system |
| PDF |
probability density function |
| RUL |
remaining useful life |