Abstract
State-of-health (SOH) is an important index indicating the batterys energy storage performance and health condition. However, the volume of SOH is highly dependent on the batterys initial capacity rather than the current capacity. Consequently, it is intractable to infer the SOH of batteries with missing data. In this paper, we propose a dynamic Peukerts law-based battery SOH estimation method. The dynamic Peukerts law correlates capacity loss with Peukerts coefficient, and eliminates the degradation inconsistency and is applicable for the same type of battery. Since the Peukerts coefficient can be calculated by multi-discharging test, the SOH is able to be estimated directly, and therefore, the limitation of data missing is overcome.
| Original language | English |
|---|---|
| Title of host publication | 2019 IEEE International Instrumentation and Measurement Technology Conference(I2MTC) |
| Volume | 2019-May |
| ISBN (Electronic) | 978-1-5386-3460-8 |
| DOIs | |
| Publication status | Published - May 2019 |
| Externally published | Yes |
| Event | 2019 IEEE International Instrumentation and Measurement Technology Conference, I2MTC 2019 - Auckland, New Zealand Duration: 20 May 2019 → 23 May 2019 http://i2mtc2019.ieee-ims.org |
Conference
| Conference | 2019 IEEE International Instrumentation and Measurement Technology Conference, I2MTC 2019 |
|---|---|
| Place | New Zealand |
| City | Auckland |
| Period | 20/05/19 → 23/05/19 |
| Internet address |
Research Keywords
- Degradation
- Discharges (electric)
- Estimation
- Lithium-ion battery
- Mathematical model
- Mechanical engineering