Li-ion battery voltage curve reconstruction using partial charge profiles: Actual v/s truncated data
Voltage reconstruction is a common technique used in estimation of degradation modes for aged Li-ion batteries. For real-life implementation, it is desirable for voltage reconstruction to work for partial charging as real-life batteries are rarely charged fully. In this pursuit, the presented work i...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-06-01
|
| Series: | Journal of Power Sources Advances |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666248525000095 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849734141696802816 |
|---|---|
| author | Anubhav Singh Puritut Nakhanivej Yazmin Monaghan Melanie J. Loveridge Anup Barai |
| author_facet | Anubhav Singh Puritut Nakhanivej Yazmin Monaghan Melanie J. Loveridge Anup Barai |
| author_sort | Anubhav Singh |
| collection | DOAJ |
| description | Voltage reconstruction is a common technique used in estimation of degradation modes for aged Li-ion batteries. For real-life implementation, it is desirable for voltage reconstruction to work for partial charging as real-life batteries are rarely charged fully. In this pursuit, the presented work investigates a common practice of using truncated data from full charge as a representation of partial charging in voltage reconstruction. Usage of truncated data is prevalent despite known deviations between data collected from partial and full charge cycles and has resulted in a misconception that accurate voltage reconstruction is achievable using partial charging data. Therefore, voltage reconstruction errors between models parametrised using truncated data and actual partial charging data were compared. Results show a four-fold increase in error when using truncated data, which indicates that truncated data is an inappropriate proxy of partial charge. The findings also imply that partial charging is a limitation of voltage reconstruction modelling not highlighted before due to usage of truncated data. This limitation must be addressed to improve the applicability of voltage reconstruction. The study also emphasises the need to generate new battery degradation datasets with appropriate inclusion of partial charging data to enable the development of accurate and holistic models. |
| format | Article |
| id | doaj-art-936a6e7d01fe450e89fac3c097bfdbc0 |
| institution | DOAJ |
| issn | 2666-2485 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Power Sources Advances |
| spelling | doaj-art-936a6e7d01fe450e89fac3c097bfdbc02025-08-20T03:07:51ZengElsevierJournal of Power Sources Advances2666-24852025-06-013310017510.1016/j.powera.2025.100175Li-ion battery voltage curve reconstruction using partial charge profiles: Actual v/s truncated dataAnubhav Singh0Puritut Nakhanivej1Yazmin Monaghan2Melanie J. Loveridge3Anup Barai4Energy Innovation Centre, WMG, University of Warwick, Coventry, CV4 7AL, United Kingdom; Corresponding author.Energy Innovation Centre, WMG, University of Warwick, Coventry, CV4 7AL, United KingdomDepartment of Chemical Engineering, University of Bath, Claverton Down, Bath, BA2 7AY, United KingdomEnergy Innovation Centre, WMG, University of Warwick, Coventry, CV4 7AL, United KingdomEnergy Innovation Centre, WMG, University of Warwick, Coventry, CV4 7AL, United KingdomVoltage reconstruction is a common technique used in estimation of degradation modes for aged Li-ion batteries. For real-life implementation, it is desirable for voltage reconstruction to work for partial charging as real-life batteries are rarely charged fully. In this pursuit, the presented work investigates a common practice of using truncated data from full charge as a representation of partial charging in voltage reconstruction. Usage of truncated data is prevalent despite known deviations between data collected from partial and full charge cycles and has resulted in a misconception that accurate voltage reconstruction is achievable using partial charging data. Therefore, voltage reconstruction errors between models parametrised using truncated data and actual partial charging data were compared. Results show a four-fold increase in error when using truncated data, which indicates that truncated data is an inappropriate proxy of partial charge. The findings also imply that partial charging is a limitation of voltage reconstruction modelling not highlighted before due to usage of truncated data. This limitation must be addressed to improve the applicability of voltage reconstruction. The study also emphasises the need to generate new battery degradation datasets with appropriate inclusion of partial charging data to enable the development of accurate and holistic models.http://www.sciencedirect.com/science/article/pii/S2666248525000095Li-ion batteriesDegradation diagnosisPartial chargingIncremental capacity |
| spellingShingle | Anubhav Singh Puritut Nakhanivej Yazmin Monaghan Melanie J. Loveridge Anup Barai Li-ion battery voltage curve reconstruction using partial charge profiles: Actual v/s truncated data Journal of Power Sources Advances Li-ion batteries Degradation diagnosis Partial charging Incremental capacity |
| title | Li-ion battery voltage curve reconstruction using partial charge profiles: Actual v/s truncated data |
| title_full | Li-ion battery voltage curve reconstruction using partial charge profiles: Actual v/s truncated data |
| title_fullStr | Li-ion battery voltage curve reconstruction using partial charge profiles: Actual v/s truncated data |
| title_full_unstemmed | Li-ion battery voltage curve reconstruction using partial charge profiles: Actual v/s truncated data |
| title_short | Li-ion battery voltage curve reconstruction using partial charge profiles: Actual v/s truncated data |
| title_sort | li ion battery voltage curve reconstruction using partial charge profiles actual v s truncated data |
| topic | Li-ion batteries Degradation diagnosis Partial charging Incremental capacity |
| url | http://www.sciencedirect.com/science/article/pii/S2666248525000095 |
| work_keys_str_mv | AT anubhavsingh liionbatteryvoltagecurvereconstructionusingpartialchargeprofilesactualvstruncateddata AT puritutnakhanivej liionbatteryvoltagecurvereconstructionusingpartialchargeprofilesactualvstruncateddata AT yazminmonaghan liionbatteryvoltagecurvereconstructionusingpartialchargeprofilesactualvstruncateddata AT melaniejloveridge liionbatteryvoltagecurvereconstructionusingpartialchargeprofilesactualvstruncateddata AT anupbarai liionbatteryvoltagecurvereconstructionusingpartialchargeprofilesactualvstruncateddata |