Power Generation Technology ›› 2022, Vol. 43 ›› Issue (5): 801-809.DOI: 10.12096/j.2096-4528.pgt.22135

• New Energy Storage Ontology Technology • Previous Articles     Next Articles

Study on Heat Production Characteristics of Lithium-ion Batteries for Large Capacity Energy Storage

Wenjun KONG1, Yansen ZHANG1, Xiaoping TANG2, Weikuo ZHANG2   

  1. 1.School of Astronautics, Beihang University, Changping District, Beijing 102206, China
    2.Huadian Electric Power Research Institute Co. , Ltd. , Hangzhou 310030, Zhejiang Province, China
  • Received:2022-08-15 Published:2022-10-31 Online:2022-11-04
  • Supported by:
    National Natural Science Foundation of China(52076007);Enlisting and Leading Project of China Huadian Coroperation Ltd(JBGS2021-03)

Abstract:

It is important to study the heat production characteristics of large capacity energy storage lithium-ion battery cells for the design of thermal management of lithium-ion battery energy storage. The thermal conductivity and specific heat of the cell and the adiabatic temperature characteristics of the cell during charging and discharging were measured by experimental method. A heat transfer model considering the heat conduction inside the cell and the natural convection heat transfer between the surface of the cell and the ambient was presented. The maximum temperature and the maximum temperature rise of the cell during charging and discharging were obtained by numerical simulations. The variation of the surface temperature of the cell with time and the optimum-ion distance between the cells were obtained. At the same time, the variation trends of the cooling air quantity changing with the inlet air temperature were obtained. The results show that the heat production of lithium-ion battery with large capacity during charging is slightly higher than that during discharging.

Key words: thermal management, large capacity energy storage lithium-ion batteries, cell, heat production characteristics, numerical simulations

CLC Number: