A design of charging passive protection device based on SiC/AL2O3 porous media for lithium-ion battery supply in coal mine

IF 7.8 2区环境科学与生态学 Q1 ENGINEERING, CHEMICAL

Process Safety and Environmental Protection Pub Date : 2025-09-30 DOI:10.1016/j.psep.2025.107959

Yongzheng Yao , Yiyuan Wang , Aolan Pan , Zhi Hu

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引用次数: 0

Abstract

Lithium-ion batteries are increasingly deployed in underground coal mines. However, the risk of thermal runaway, particularly during charging, remains a critical concern. Existing control measures are insufficient to effectively mitigate the hazard. Therefore, a flame-blocking and explosion-proof device is proposed as an additional safety measure during the charging process. Porous media is one of the lightweight and high-strength materials with gas escape passage. These functions of porous media match the needs of thermal runaway risk prevention and control of lithium-ion batteries in underground coal mines. It is proposed to use the porous media as the core of the protection device. To further evaluate the applicability of porous media, the suppression effects of Al₂O₃ and SiC porous media on high-pressure gas release, jet flames, and gas explosions were systematically investigated through numerical simulations, experiments, and literature review. Among the candidate materials with pore densities ranging from 20 to 60 PPI and thicknesses between 1 and 3 cm, SiC porous media with a pore density of 20 PPI and a thickness of 1.5 cm was selected as the primary material for the passive protection device. Finally, based on the practical requirements of lithium-ion battery supplies used in underground coal mines, a three-layer passive protection device centered on porous media was designed for protection during charging. This protection device has the ability to ensure the safety of lithium battery power charging and promoting the electrification transport to reduce diesel emissions and carbon footprints in underground coal mines.

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基于SiC/AL2O3多孔介质的煤矿锂离子电池充电被动保护装置设计

锂离子电池越来越多地应用于地下煤矿。然而，热失控的风险，特别是在充电期间，仍然是一个关键问题。现有的控制措施不足以有效减轻危害。因此，在装药过程中，提出了一种隔火防爆装置作为额外的安全措施。多孔介质是一种具有气体逃逸通道的轻质高强材料。多孔介质的这些功能与煤矿井下锂离子电池热失控风险防控的需要相匹配。提出采用多孔介质作为保护装置的核心。为了进一步评价多孔介质的适用性，通过数值模拟、实验和文献综述等方法，系统研究了Al₂O₃和SiC多孔介质对高压气体释放、喷射火焰和气体爆炸的抑制效果。在孔隙密度为20 ~ 60 PPI、厚度为1 ~ 3 cm的候选材料中，选择孔隙密度为20 PPI、厚度为1.5 cm的SiC多孔介质作为被动保护装置的主要材料。最后，根据煤矿井下锂离子电池电源的实际需求，设计了一种以多孔介质为中心的三层无源保护装置，用于充电时的保护。该保护装置具有保证锂电池充电安全，促进电气化运输，减少煤矿井下柴油排放和碳足迹的能力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Process Safety and Environmental Protection 环境科学-工程：化工

CiteScore

11.40

自引率

15.40%

发文量

929

审稿时长

8.0 months

期刊介绍： The Process Safety and Environmental Protection (PSEP) journal is a leading international publication that focuses on the publication of high-quality, original research papers in the field of engineering, specifically those related to the safety of industrial processes and environmental protection. The journal encourages submissions that present new developments in safety and environmental aspects, particularly those that show how research findings can be applied in process engineering design and practice. PSEP is particularly interested in research that brings fresh perspectives to established engineering principles, identifies unsolved problems, or suggests directions for future research. The journal also values contributions that push the boundaries of traditional engineering and welcomes multidisciplinary papers. PSEP's articles are abstracted and indexed by a range of databases and services, which helps to ensure that the journal's research is accessible and recognized in the academic and professional communities. These databases include ANTE, Chemical Abstracts, Chemical Hazards in Industry, Current Contents, Elsevier Engineering Information database, Pascal Francis, Web of Science, Scopus, Engineering Information Database EnCompass LIT (Elsevier), and INSPEC. This wide coverage facilitates the dissemination of the journal's content to a global audience interested in process safety and environmental engineering.