Peukert Revisited—Critical Appraisal and Need for Modification for Lithium-Ion Batteries

Energies

Noshin Omar¹  Peter Van den Bossche²  Thierry Coosemans² 

[1] Mobility, Logistics and Automotive Technology Research Centre (MOBI), Vrije Universiteit Brussel, Pleinlaan 2, Brussel 1050, Belgium;

关键词: lithium-ion;    Peukert relationship;    discharge capacity;   

DOI  :  10.3390/en6115625

来源: mdpi

【 摘 要 】

The Peukert relationship was originally introduced in 1897 for lead-acid batteries and defines one of the most common parameters for battery performance evaluation. This article assesses its application for lithium-ion batteries. From the performed analysis, we can conclude that the Peukert relationship is suitable in a narrow working range such as limited current range and almost constant working temperature. Taking into account however that lithium-ion traction batteries in battery electric vehicle applications operate under strongly variable conditions, a novel relationship has been developed, allowing a more accurate description of the discharge capacity of lithium-ion batteries than the Peukert relationship does. The proposed new relationship has been derived based on comprehensive experimental analysis of the parameters that affect the battery discharge capacity and can be implemented in battery mathematical models.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.