A composite phase change material possessing antileakage performance for battery thermal management by constructing a nanoscale polymer framework. (12th October 2022)

• Record Type: Journal Article
• Authors: Yao, Zhubin; Ye, Guohua; Huang, Runye; Xu, Xiaoru; Zhang, Guoqing; Yang, Xiaoqing
• Is Part Of: Chemical engineering science. Volume 260(2022)
• Publication Date: 2022-10-12
• Subjects: Battery thermal management -- Phase change material -- Leakage -- Heat dissipation -- Safety; EVs electric vehicles -- BTM battery thermal management -- PCM phase change material -- CPCM composite phase change material -- EG expanded graphite -- PA paraffin -- LDPE low-density polyethylene -- DBS 1, 3:2, 4-Dibenzylidene sorbitol -- PEG polyethylene glycol -- PCT phase change temperature -- UPR unsaturated polyester resin -- F formaldehyde -- CTAB cetyltrimethyl ammonium bromide -- R resorcinol -- XRD X-ray diffraction -- FTIR Fourier transform infrared -- SEM Scanning electron microscope -- BET Brunauer- Emmett-Teller -- DSC differential scanning calorimetry -- ER epoxy resin; Chemical engineering -- Periodicals; Génie chimique -- Périodiques; Chemical engineering; Periodicals; Electronic journals; 660
• DOI: 10.1016/j.ces.2022.117932
• Languages: English
• ISSNs: 0009-2509

Abstract

Highlights: A novel CPCM with antileakage property for battery thermal management is prepared. A nanoscale framework is constructed to replace micron-scale framework in CPCM. The nanoscale framework stacks into a developed mesoporous structure to adsorb PEG. The obtained CPCM presents excellent antileakage property and thermal stability. The obtained CPCM shows outstanding cooling performance for the battery module. Abstract: To solve the leakage issue of phase change material (PCM)-based battery thermal management (BTM) technology, a novel composite PCM (CPCM) is prepared herein by constructing a nanoscale resorcinol–formaldehyde (RF) framework to replace the classical micron-scale polymer framework. The three-dimensional (3D) nanoscale RF framework stacks into a 3D continuous mesoporous structure with a pore size of ∼ 30 nm and thereby results in intensive adsorbability toward polyethylene glycol, delivering an excellent antileakage property under long-term heat treatment up to 120 °C. The obtained CPCM possesses a thermal conductivity, latent heat and phase change temperature region of 1.26 W·m −1 ·K −1, 103.13 J·g −1 and 35–60 °C, respectively. Consequently, superior temperature-control performances for the battery module can be obtained. Even at high discharge rates of 2 and 3C for 10 cycles, the maximum temperature and temperature difference can be maintained below 39.7 and 2.4 °C and 41.7 and 2.3 °C, respectively.