Research Progress and Prospects of Insulation Coating Material for Lithium-Ion Battery

doi:10.3969/j.issn.1008-0198.2025.01.004

Abstract

Abstract: With the development of energy storage systems towards high voltage, the existing insulation protection measures for lithium-ion storage batteries are facing severe challenges. Based on the characteristics of PET blue film insulation coating material currently used in lithium-ion batteries, the causes of insulation coating material failure in batteries are analyzed from two aspects of material aging and external impact, and a risk analysis of insulation coating material failure is conducted. On this basis, a coating material system suitable for battery insulation protection is explored, and the advantages and disadvantages of epoxy system, phenolic system, polyester system, hot melt adhesive system and polyimide system are analyzed, providing new ideas for insulation coating materials research.

Key words: lithium-ion battery, insulation coating material, PET blue film, material ageing, epoxy resin

CLC Number:

TM911

LAI Yilin, MA Xiaoming, QU Zhanzhan, LIU Hao, ZENG Xing. Research Progress and Prospects of Insulation Coating Material for Lithium-Ion Battery[J]. Hunan Electric Power, 2025, 45(1): 21-28.

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