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A research of thermal coupling model for lithium-ion battery under low-temperature conditions

  • Chao Lyu
  • , Qingzhi Lai
  • , Ruifa Wang
  • , Yankong Song
  • , Haiyang Liu
  • , Lulu Zhang
  • , Junfu Li
  • School of Electrical Engineering and Automation, Harbin Institute of Technology
  • Research Institute

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Electrochemical models and equivalent circuit models have been the most common choices for simulation of the performance of lithium-ion battery. However, most models do not consider the temperature effect on the battery parameters, which leads to large simulation error when battery is under subzero operation conditions. Actually, low ambient temperature operation condition is inevitable for EVs and HEVs in cold-climate of some regions. Fundamentally, low-temperature conditions lead to a slowdown of the chemical reactions, affecting the charge-transfer kinetics and leading to low electrolyte conductivity and a decreased diffusivity of lithium ions within the negative-potential electrode(anode). In this paper, the relationship between temperature-dependent parameters and temperature at low temperatures was established. An improved model based on electrochemical-thermal coupling model (ETCM) was proposed to accurately simulate battery performance. Experimental data and the simulation of a battery proved that the proposed model can precisely simulate the battery performance at low temperatures. The results obtained in this paper are quite useful for battery management system.

Original languageEnglish
Title of host publication2017 Prognostics and System Health Management Conference, PHM-Harbin 2017 - Proceedings
EditorsBin Zhang, Yu Peng, Haitao Liao, Datong Liu, Shaojun Wang, Qiang Miao
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538603703
DOIs
StatePublished - 20 Oct 2017
Externally publishedYes
Event8th IEEE Prognostics and System Health Management Conference, PHM-Harbin 2017 - Harbin, China
Duration: 9 Jul 201712 Jul 2017

Publication series

Name2017 Prognostics and System Health Management Conference, PHM-Harbin 2017 - Proceedings

Conference

Conference8th IEEE Prognostics and System Health Management Conference, PHM-Harbin 2017
Country/TerritoryChina
CityHarbin
Period9/07/1712/07/17

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

  • Battery management system
  • Electrochemical-thermal coupling model
  • Improved model
  • Lithium-ion battery
  • Low-temperature conditions

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