Figure 1.
SSA-VMD flow chart.
Figure 1.
SSA-VMD flow chart.
Figure 2.
Mogrifier LSTM network structure unit.
Figure 2.
Mogrifier LSTM network structure unit.
Figure 3.
Mogrifier LSTM input–output interaction control process1.
Figure 3.
Mogrifier LSTM input–output interaction control process1.
Figure 4.
Mogrifier LSTM input–output interaction control process 2.
Figure 4.
Mogrifier LSTM input–output interaction control process 2.
Figure 5.
CALCE lithium battery capacity degradation trend.
Figure 5.
CALCE lithium battery capacity degradation trend.
Figure 6.
NASA lithium battery capacity degradation trend.
Figure 6.
NASA lithium battery capacity degradation trend.
Figure 7.
Li-ion battery RUL prediction flow chart.
Figure 7.
Li-ion battery RUL prediction flow chart.
Figure 8.
Source domain, target domain lithium battery dataset IMF components. (a) CS2_35 IMF components and (b) B5 IMF component.
Figure 8.
Source domain, target domain lithium battery dataset IMF components. (a) CS2_35 IMF components and (b) B5 IMF component.
Figure 9.
Reconstructed capacity degradation curve. (a) Source domain Li-ion battery data. (b) Target domain Li-ion battery data.
Figure 9.
Reconstructed capacity degradation curve. (a) Source domain Li-ion battery data. (b) Target domain Li-ion battery data.
Figure 10.
Predicted results for 100 starting points for (a) B5 and (b) B6.
Figure 10.
Predicted results for 100 starting points for (a) B5 and (b) B6.
Figure 11.
Predicted results for 80 starting points for (a) B5 and (b) B6.
Figure 11.
Predicted results for 80 starting points for (a) B5 and (b) B6.
Figure 12.
Predicted results for 60 starting points for (a) B5 and (b) B6.
Figure 12.
Predicted results for 60 starting points for (a) B5 and (b) B6.
Figure 13.
RUL of the target domain battery data (B5, B6, CS2_37 and CS2_38 are source domains) for (a) CS2_35 and (b) CS2_36.
Figure 13.
RUL of the target domain battery data (B5, B6, CS2_37 and CS2_38 are source domains) for (a) CS2_35 and (b) CS2_36.
Figure 14.
RUL of the target domain battery data (B5, B6, CS2_35 and CS2_36 are source domains) for (a) CS2_37 and (b) CS2_38.
Figure 14.
RUL of the target domain battery data (B5, B6, CS2_35 and CS2_36 are source domains) for (a) CS2_37 and (b) CS2_38.
Figure 15.
RUL of the target domain battery data (B6, CS2_35, CS2_36 and CS2_37 are source domains) for (a) CS2_38 and (b) B5.
Figure 15.
RUL of the target domain battery data (B6, CS2_35, CS2_36 and CS2_37 are source domains) for (a) CS2_38 and (b) B5.
Figure 16.
RUL of the target domain battery data (B5, CS2_36, CS2_37 and CS2_38 are source domains) for (a) CS2_35 and (b) B6.
Figure 16.
RUL of the target domain battery data (B5, CS2_36, CS2_37 and CS2_38 are source domains) for (a) CS2_35 and (b) B6.
Table 1.
SSA parameter setting.
Table 1.
SSA parameter setting.
Num | Iter | Lb | Ub | Dim |
---|
30 | 20 | [10, 200] | [2, 100] | 2 |
Table 2.
SSA-VMD and EMD decomposition of IO values.
Table 2.
SSA-VMD and EMD decomposition of IO values.
Decomposition Methods | IO |
---|
WOA-VMD | 0.1184 |
EMD | 0.0631 |
Table 3.
IMF maximum information coefficient.
Table 3.
IMF maximum information coefficient.
Battery Type | IMF1 | IMF2 | IMF3 | IMF4 | IMF5 | Mean |
---|
CS2_35 | 1.0000 | 0.3879 | 0.1683 | 0.1599 | 0.1718 | 0.3776 |
CS2_36 | 1.0000 | 0.2837 | 0.2064 | 0.2143 | 0.2207 | 0.3850 |
CS2_37 | 1.0000 | 0.1904 | 0.1951 | 0.1573 | 0.1560 | 0.3398 |
CS2_38 | 1.0000 | 0.2624 | 0.1467 | 0.1338 | 0.1509 | 0.3388 |
B5 | 1.0000 | 0.3180 | 0.2358 | 0.1941 | 0.1560 | 0.3808 |
B6 | 1.0000 | 0.9183 | 0.3286 | 0.3508 | 0.2234 | 0.5642 |
Table 4.
B5 battery and analysis.
Table 4.
B5 battery and analysis.
Prediction Method | ST | RUL | | | |
---|
ITL-Mogrifier LSTM | 100 | 24 | 24 | 0 | 0 |
Mogrifier LSTM | 100 | 24 | 21 | 3 | 12.5 |
LSTM | 100 | 24 | 16 | 8 | 33.3 |
ITL-Mogrifier LSTM | 80 | 44 | 44 | 0 | 0 |
Mogrifier LSTM | 80 | 44 | 41 | 3 | 6.81 |
LSTM | 80 | 44 | 34 | 10 | 22.7 |
ITL-Mogrifier LSTM | 60 | 64 | 63 | 1 | 1.56 |
Mogrifier LSTM | 60 | 64 | 61 | 5 | 7.81 |
LSTM | 60 | 64 | 52 | 12 | 18.75 |
Table 5.
B6 battery and analysis.
Table 5.
B6 battery and analysis.
Prediction Method | ST | RUL | | | |
---|
ITL-Mogrifier LSTM | 100 | 8 | 8 | 0 | 0 |
Mogrifier LSTM | 100 | 8 | 10 | 2 | 25 |
LSTM | 100 | 8 | 7 | 1 | 12.5 |
ITL-Mogrifier LSTM | 80 | 28 | 28 | 0 | 0 |
Mogrifier LSTM | 80 | 28 | 30 | 2 | 7.14 |
LSTM | 80 | 28 | 31 | 3 | 10.7 |
ITL-Mogrifier LSTM | 60 | 48 | 48 | 0 | 0 |
Mogrifier LSTM | 60 | 48 | 50 | 2 | 4.17 |
LSTM | 60 | 64 | 52 | 12 | 18.75 |
Table 6.
B5 battery CRA and MAPE analysis.
Table 6.
B5 battery CRA and MAPE analysis.
Prediction Method | ST | CRA | MAPE (%) |
---|
ITL-Mogrifier LSTM | 100 | 0.9265 | 5.346 |
Mogrifier LSTM | 100 | 0.9116 | 6.835 |
LSTM | 100 | 0.8744 | 10.71 |
ITL-Mogrifier LSTM | 80 | 0.9153 | 6.471 |
Mogrifier LSTM | 80 | 0.8889 | 9.112 |
LSTM | 80 | 0.8696 | 10.89 |
ITL-Mogrifier LSTM | 60 | 0.9243 | 5.643 |
Mogrifier LSTM | 60 | 0.8788 | 10.55 |
LSTM | 60 | 0.8542 | 12.11 |
Table 7.
B6 battery CRA and MAPE analysis.
Table 7.
B6 battery CRA and MAPE analysis.
Prediction Method | ST | CRA | MAPE (%) |
---|
ITL-Mogrifier LSTM | 100 | 0.9116 | 6.835 |
Mogrifier LSTM | 100 | 0.8182 | 15.17 |
LSTM | 100 | 0.8133 | 16.67 |
ITL-Mogrifier LSTM | 80 | 0.8904 | 8.952 |
Mogrifier LSTM | 80 | 0.8629 | 11.71 |
LSTM | 80 | 0.8047 | 17.53 |
ITL-Mogrifier LSTM | 60 | 0.8985 | 8.145 |
Mogrifier LSTM | 60 | 0.8325 | 14.75 |
LSTM | 60 | 0.7853 | 21.47 |
Table 8.
B5, B6, CS2_37, and CS2_38 are source domains for CS2_35 battery and analysis.
Table 8.
B5, B6, CS2_37, and CS2_38 are source domains for CS2_35 battery and analysis.
Prediction Method | ST | RUL | | | |
---|
ITL-Mogrifier LSTM | 361 | 156 | 155 | 1 | 0.641 |
Mogrifier LSTM | 361 | 156 | 158 | 2 | 1.28 |
LSTM | 361 | 156 | 165 | 9 | 5.77 |
Table 9.
B5, B6, CS2_37 and CS2_38 are source domains for CS2_35 battery CRA and MAPE analysis.
Table 9.
B5, B6, CS2_37 and CS2_38 are source domains for CS2_35 battery CRA and MAPE analysis.
Prediction Method | ST | CRA | MAPE (%) |
---|
ITL-Mogrifier LSTM | 361 | 0.9267 | 5.342 |
Mogrifier LSTM | 361 | 0.9245 | 5.641 |
LSTM | 361 | 0.8745 | 10.72 |
Table 10.
B5, B6, CS2_37 and CS2_38 are source domains for CS2_36 battery and analysis.
Table 10.
B5, B6, CS2_37 and CS2_38 are source domains for CS2_36 battery and analysis.
Prediction Method | ST | RUL | | | |
---|
ITL-Mogrifier LSTM | 381 | 108 | 110 | 2 | 1.85 |
Mogrifier LSTM | 381 | 108 | 100 | 8 | 7.41 |
LSTM | 381 | 108 | 117 | 9 | 8.33 |
Table 11.
B5, B6, CS2_37 and CS2_38 are source domains for CS2_36 battery CRA and MAPE analysis.
Table 11.
B5, B6, CS2_37 and CS2_38 are source domains for CS2_36 battery CRA and MAPE analysis.
Prediction Method | ST | CRA | MAPE (%) |
---|
ITL-Mogrifier LSTM | 381 | 0.9247 | 5.639 |
Mogrifier LSTM | 381 | 0.8739 | 10.75 |
LSTM | 381 | 0.8740 | 10.76 |
Table 12.
B5, B6, CS2_35 and CS2_36 are source domains for CS2_37 battery and analysis.
Table 12.
B5, B6, CS2_35 and CS2_36 are source domains for CS2_37 battery and analysis.
Prediction Method | ST | RUL | | | |
---|
ITL-Mogrifier LSTM | 381 | 115 | 115 | 0 | 0 |
Mogrifier LSTM | 381 | 115 | 105 | 5 | 4.35 |
LSTM | 381 | 115 | 99 | 16 | 13.91 |
Table 13.
B5, B6, CS2_35 and CS2_36 are source domains for CS2_37 battery CRA and MAPE analysis.
Table 13.
B5, B6, CS2_35 and CS2_36 are source domains for CS2_37 battery CRA and MAPE analysis.
Prediction Method | ST | CRA | MAPE (%) |
---|
ITL-Mogrifier LSTM | 381 | 0.9268 | 5.34 |
Mogrifier LSTM | 381 | 0.9005 | 9.152 |
LSTM | 381 | 0.7849 | 21.52 |
Table 14.
B5, B6, CS2_35 and CS2_36 are source domains for CS2_38 battery and analysis.
Table 14.
B5, B6, CS2_35 and CS2_36 are source domains for CS2_38 battery and analysis.
Prediction Method | ST | RUL | | | |
---|
ITL-Mogrifier LSTM | 397 | 158 | 158 | 0 | 0 |
Mogrifier LSTM | 397 | 158 | 163 | 5 | 3.17 |
LSTM | 397 | 158 | 168 | 10 | 6.33 |
Table 15.
B5, B6, CS2_35 and CS2_36 are source domains for CS2_38 battery CRA and MAPE analysis.
Table 15.
B5, B6, CS2_35 and CS2_36 are source domains for CS2_38 battery CRA and MAPE analysis.
Prediction Method | ST | CRA | MAPE (%) |
---|
ITL-Mogrifier LSTM | 397 | 0.9268 | 5.34 |
Mogrifier LSTM | 397 | 0.9005 | 9.152 |
LSTM | 397 | 0.8696 | 10.89 |
Table 16.
B6, CS2_35, CS2_36 and CS2_37 are source domains for CS2_38 battery and and analysis.
Table 16.
B6, CS2_35, CS2_36 and CS2_37 are source domains for CS2_38 battery and and analysis.
Prediction Method | ST | RUL | | | |
---|
ITL-Mogrifier LSTM | 397 | 158 | 164 | 6 | 3.80 |
Mogrifier LSTM | 397 | 158 | 164 | 6 | 3.80 |
LSTM | 397 | 158 | 162 | 4 | 2.50 |
Table 17.
B6, CS2_35, CS2_36 and CS2_37 are source domains for CS2_38 battery CRA and MAPE analysis.
Table 17.
B6, CS2_35, CS2_36 and CS2_37 are source domains for CS2_38 battery CRA and MAPE analysis.
Prediction Method | ST | CRA | MAPE (%) |
---|
ITL-Mogrifier LSTM | 397 | 0.9006 | 9.156 |
Mogrifier LSTM | 397 | 0.9006 | 9.156 |
LSTM | 397 | 0.9004 | 9.15 |
Table 18.
B6, CS2_35, CS2_36 and CS2_37 are source domains for B5 battery and analysis.
Table 18.
B6, CS2_35, CS2_36 and CS2_37 are source domains for B5 battery and analysis.
Prediction Method | ST | RUL | | | |
---|
ITL-Mogrifier LSTM | 100 | 24 | 21 | 3 | 12.5 |
Mogrifier LSTM | 100 | 24 | 18 | 6 | 25.0 |
LSTM | 100 | 24 | 17 | 7 | 29.2 |
Table 19.
B6, CS2_35, CS2_36 and CS2_37 are source domains for B5 battery CRA and MAPE analysis.
Table 19.
B6, CS2_35, CS2_36 and CS2_37 are source domains for B5 battery CRA and MAPE analysis.
Prediction Method | ST | CRA | MAPE (%) |
---|
ITL-Mogrifier LSTM | 100 | 0.9116 | 6.835 |
Mogrifier LSTM | 100 | 0.8788 | 10.55 |
LSTM | 100 | 0.8788 | 10.55 |
Table 20.
B5, CS2_36, CS2_37 and CS2_38 are source domains for CS2_35 battery and analysis.
Table 20.
B5, CS2_36, CS2_37 and CS2_38 are source domains for CS2_35 battery and analysis.
Prediction Method | ST | RUL | | | |
---|
ITL-Mogrifier LSTM | 361 | 156 | 169 | 13 | 8.33 |
Mogrifier LSTM | 361 | 156 | 171 | 15 | 9.62 |
LSTM | 361 | 156 | 173 | 17 | 10.90 |
Table 21.
B5, CS2_36, CS2_37 and CS2_38 are source domains for CS2_35 battery CRA and MAPE analysis.
Table 21.
B5, CS2_36, CS2_37 and CS2_38 are source domains for CS2_35 battery CRA and MAPE analysis.
Prediction Method | ST | CRA | MAPE (%) |
---|
ITL-Mogrifier LSTM | 361 | 0.7853 | 21.47 |
Mogrifier LSTM | 361 | 0.7851 | 21.5 |
LSTM | 361 | 0.7849 | 21.52 |
Table 22.
B5, CS2_36, CS2_37 and CS2_38 are source domains for B6 battery and analysis.
Table 22.
B5, CS2_36, CS2_37 and CS2_38 are source domains for B6 battery and analysis.
Prediction Method | ST | RUL | | | |
---|
ITL-Mogrifier LSTM | 90 | 18 | 17 | 1 | 5.56 |
Mogrifier LSTM | 90 | 18 | 16 | 2 | 11.1 |
LSTM | 90 | 18 | 14 | 4 | 22.2 |
Table 23.
B5, CS2_36, CS2_37 and CS2_38 are source domains for B6 battery CRA and MAPE analysis.
Table 23.
B5, CS2_36, CS2_37 and CS2_38 are source domains for B6 battery CRA and MAPE analysis.
Prediction Method | ST | CRA | MAPE (%) |
---|
ITL-Mogrifier LSTM | 90 | 0.9267 | 5.342 |
Mogrifier LSTM | 90 | 0.9245 | 5.641 |
LSTM | 90 | 0.8889 | 9.112 |