Influence of state of charge window on the degradation of Tesla lithium-ion battery cells

Chowdhury, Nildari Roy; Smith, Alexander J.; Frenander, Kristian; Mikheenkova, Anastasiia; Lindström, Rakel Wreland; Thiringer, Torbjörn

doi:10.1016/j.est.2023.110001

Cited by 10 publications

(3 citation statements)

References 68 publications

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“… 39 and Chowdhury et al. 48 It demonstrates that the Zero-sum pulse method can accurately decouple aging mechanisms at an SOC level from a broader SOC range. This method can significantly degrade a battery at a specific SOC level in less than a week.…”

Section: Resultsmentioning

confidence: 98%

Study of aging mechanisms in LiFePO4 batteries with various SOC levels using the zero-sum pulse method

Kang,

Yang,

Wang

et al. 2024

iScience

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Section: Resultsmentioning

confidence: 98%

Study of aging mechanisms in LiFePO4 batteries with various SOC levels using the zero-sum pulse method

Kang,

Yang,

Wang

et al. 2024

iScience

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“…Cycles were defined with a current rate of C/2 during charging and 1 C during discharging at 25 °C, while charge and discharge were performed at 1 C at 45 °C. Cycles were full voltage windows, which is known to be an ageing stress factor for lithium-ion batteries [85]. Two cells were tested in each experimental condition.…”

Section: Mobile Application Referencementioning

confidence: 99%

Battery Passports for Second-Life Batteries: An Experimental Assessment of Suitability for Mobile Applications

Hassini,

Redondo-Iglesias,

Venet

2024

Batteries

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End-of-life electric vehicle (EV) batteries can be reused to reduce their environmental impact and economic costs. However, the growth of the second-life market is limited by the lack of information on the characteristics and performance of these batteries. As the volume of end-of-life EVs may exceed the amount of batteries needed for stationary applications, investigating the possibility of repurposing them in mobile applications is also necessary. This article presents an experimental test that can be used to collect the data necessary to fill a battery passport. The proposed procedure can facilitate the decision-making process regarding the suitability of a battery for reuse at the end of its first life. Once the battery passport has been completed, the performance and characteristics of the battery are compared with the requirements of several mobile applications. Mobile charging stations and forklift trucks were identified as relevant applications for the reuse of high-capacity prismatic cells. Finally, a definition of the state of health (SoH) is proposed to track the suitability of the battery during use in the second-life application considering not only the energy but also the power and efficiency of the battery. This SoH shows that even taking into account accelerated ageing data, a repurposed battery can have an extended life of 11 years at 25 °C. It has also been shown that energy fade is the most limiting performance factor for the lifetime and that cell-to-cell variation should be tracked as it has been shown to have a significant impact on the battery life.

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“…Cycles were defined with current rate of C/2 during charge and 1C during discharge at 25 °C while charge and discharge were made at 1C at 45 °C. Cycles were full voltage windows which is known to be an ageing stress factor for lithium-ion batteries [85]. Two cells were tested in each experimental condition.…”

Section: Suitability Assessment Of the Battery For A Mobile Applicationmentioning

confidence: 99%

Battery Passport for Second-Life Batteries: Experimental Assessment of Suitability for Mobile Applications

Hassini,

Redondo-Iglesias,

Venet

2024

Preprint

View full text Add to dashboard Cite

End-of-life electric vehicle (EV) batteries can be reused to reduce their environmental impact and economic costs. However, the growth of a second-life market is limited by the lack of information on the characteristics and performance of these batteries. As the volume of end-of-life EVs may exceed the amount of batteries needed for stationary applications, investigating the possibility of repurposing them in mobile applications is also necessary. This article presents an experimental test that can be used to collect the data necessary to fill a battery passport. The proposed procedure can facilitate the decision making process regarding the suitability of a battery for reuse at the end of its first life. Once the battery passport has been completed, the performance and characteristics of the battery are compared with the requirements of several mobile applications. Mobile charging stations and forklift trucks were identified as relevant applications for the reuse of high capacity prismatic cells. Finally, a definition of a state of health (SoH) is proposed to track the suitability of the battery during use in the second life application considering not only energy but also power and efficiency of the battery. This SoH shows that even taking into account accelerated ageing data, a repurposed battery can have an extended life of 11 years at 25~°C. It has also been shown that energy fade is the most limiting performance for lifetime and that cell-to-cell variation should be tracked as it has been shown to have a significant impact on battery life.

show abstract

Influence of state of charge window on the degradation of Tesla lithium-ion battery cells

Cited by 10 publications

References 68 publications

Study of aging mechanisms in LiFePO4 batteries with various SOC levels using the zero-sum pulse method

Study of aging mechanisms in LiFePO4 batteries with various SOC levels using the zero-sum pulse method

Battery Passports for Second-Life Batteries: An Experimental Assessment of Suitability for Mobile Applications

Battery Passport for Second-Life Batteries: Experimental Assessment of Suitability for Mobile Applications

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