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Online thermal state estimation of high power lithium-ion battery

  • Hyunjae Kim
  • , Sunuwe Kim
  • , Taejin Kim
  • , Chao Hu
  • , Byeng D. Youn*
  • *Corresponding author for this work
  • Seoul National University
  • University of Maryland, College Park

Research output: Contribution to conferenceConference paperpeer-review

Abstract

This paper concerns about thermal management issues of Li-ion battery for optimal and safe operation of the battery. For the thermal management, it is important to estimate implicit thermal states such as internal temperature and heat generation rate of the battery. This research presents an online thermal state estimation technique for a pouch-type Li-ion polymer battery. The thermal states are represented by a state space model based on an equivalent circuit model. A computational thermal dynamic analysis for Li-ion battery is used for identifying the model parameters. A state estimation technique is developed based on a state observer and energy balance equation. This technique is validated with a constant and dynamic current discharge experiment on a 5Ah pouch type Li-ion battery.

Original languageEnglish
Title of host publication2015 IEEE Conference on Prognostics and Health Management
Subtitle of host publicationEnhancing Safety, Efficiency, Availability, and Effectiveness of Systems Through PHAf Technology and Application, PHM 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479918935
DOIs
StatePublished - 2015.09.8
EventIEEE Conference on Prognostics and Health Management, PHM 2015 - Austin, United States
Duration: 2015.06.222015.06.25

Publication series

Name2015 IEEE Conference on Prognostics and Health Management: Enhancing Safety, Efficiency, Availability, and Effectiveness of Systems Through PHAf Technology and Application, PHM 2015

Conference

ConferenceIEEE Conference on Prognostics and Health Management, PHM 2015
Country/TerritoryUnited States
CityAustin
Period15.06.2215.06.25

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Heat generation
  • Heat measurement
  • Lithium ion battery
  • State observation
  • Temperature estimation

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