Topic
State of health
About: State of health is a research topic. Over the lifetime, 1694 publications have been published within this topic receiving 33272 citations. The topic is also known as: SoH & SOH.
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TL;DR: In this paper, the methods for monitoring the battery state of charge, capacity, impedance parameters, available power, state of health, and remaining useful life are reviewed with the focus on elaboration of their strengths and weaknesses for the use in on-line BMS applications.
827 citations
TL;DR: A detailed review of the applicability of impedance measurement as a test of state-of-charge or state of health of battery cells has been performed in both scientific journals and technical conferences.
632 citations
TL;DR: In this article, a review of battery state of health (SOH) estimation methods for hybrid and electric vehicles is presented, and a potential, new and promising via in order to develop a methodology to estimate the SOH in real applications is detailed.
Abstract: Lithium-ion battery packs in hybrid and electric vehicles, as well as in other traction applications, are always equipped with a Battery Management System (BMS). The BMS consists of hardware and software for battery management including, among others, algorithms determining battery states. The accurate and reliable State of Health (SOH) estimation is a challenging issue and it is a core factor of a battery energy storage system. In this paper, battery SOH monitoring methods are reviewed. To this end, different scientific and technical literature is studied and the respective approaches are classified in specific groups. The groups are organized in terms of the way the method is carried out: Experimental Techniques or Adaptive Models. Not only strengths and weaknesses for the use in online BMS applications are reviewed but also their accuracy and precision is studied. At the end of the document a potential, new and promising via in order to develop a methodology to estimate the SOH in real applications is detailed.
581 citations
TL;DR: In this paper, a combined state of charge (SOC) and SOH (State Of Health) estimation method over the lifespan of a lithium-ion battery is proposed, where the SOH is estimated in real-time and the capacity and internal ohmic resistance are updated offline.
537 citations
Patent•
19 Oct 2006TL;DR: A rechargable battery with an internal microcontroller as discussed by the authors contains a memory in which data regarding the environment to which the battery is exposed are stored, and these data are read by a processor integral with the charger used to charge the battery.
Abstract: A rechargable battery with an internal microcontroller. The microcontroller contains a memory in which data regarding the environment to which the battery is exposed are stored. These data are read by a processor integral with the charger used to charge the battery. If these data indicates the battery may have been subjected to a harsh environment for an excessive period of time, the charger performs a complete state of health evaluation of the battery.
526 citations