关于膨胀商用锂离子电池的安全性:老化、膨胀和滥用测试研究

IF 15 1区 工程技术 Q1 ENERGY & FUELS Etransportation Pub Date : 2024-10-16 DOI:10.1016/j.etran.2024.100368
Yiding Li , Shicong Ding , Li Wang , Wenwei Wang , Cheng Lin , Xiangming He
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引用次数: 0

摘要

锂离子电池技术取得了长足的进步,使其成为智能手机等便携式电子设备的重要电源。2023 年,全球智能手机出货量将近 12 亿部,凸显了对这些电池的广泛依赖。然而,随着电池老化,它们可能会膨胀,并可能带来爆炸风险。为了研究膨胀电池的安全性,本研究对五大领先品牌的锂离子电池进行了加速老化和膨胀测试,这五大品牌共占全球智能手机市场份额的一半以上。研究涉及一系列综合测试,包括加速速率量热仪(ARC)测试,符合中国国家标准的机械、电气和热滥用测试,以及新电池和膨胀电池的气体成分和理论可燃性分析。研究结果表明,膨胀电池在浮充条件下通常表现得更安全,新电池和膨胀电池都能通过标准框架内的滥用测试。这项研究表明,膨胀锂离子电池的安全性不能一概而论地归结为危险或安全,而应根据具体环境进行评估。
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On safety of swelled commercial lithium-ion batteries: A study on aging, swelling, and abuse tests
Lithium-ion battery technology has advanced significantly, making these power sources essential for portable electronic devices such as smartphones. In 2023, global smartphone shipments reached nearly 1.2 billion units, underscoring the widespread reliance on these batteries. However, as batteries age, they may swell and potentially pose explosion risks. To investigate the safety of swollen batteries, this study conducts accelerated aging and swelling tests on lithium-ion batteries from five leading brands, which together represent over half of the global smartphone market share. The research involves a series of comprehensive tests, including Accelerated Rate Calorimeters (ARC) test, mechanical, electrical, and thermal abuse tests in accordance with Chinese national standards, as well as gas composition and theoretical flammability analyses on both new and swollen batteries. The findings indicate that swollen batteries generally exhibit safer behavior under floating charging conditions, and both new and swollen batteries pass the abuse tests within the standard framework. This study suggests that the safety of swollen lithium-ion batteries cannot be categorically labeled as dangerous or safe and should be assessed within the context of specific environments.
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来源期刊
Etransportation
Etransportation Engineering-Automotive Engineering
CiteScore
19.80
自引率
12.60%
发文量
57
审稿时长
39 days
期刊介绍: eTransportation is a scholarly journal that aims to advance knowledge in the field of electric transportation. It focuses on all modes of transportation that utilize electricity as their primary source of energy, including electric vehicles, trains, ships, and aircraft. The journal covers all stages of research, development, and testing of new technologies, systems, and devices related to electrical transportation. The journal welcomes the use of simulation and analysis tools at the system, transport, or device level. Its primary emphasis is on the study of the electrical and electronic aspects of transportation systems. However, it also considers research on mechanical parts or subsystems of vehicles if there is a clear interaction with electrical or electronic equipment. Please note that this journal excludes other aspects such as sociological, political, regulatory, or environmental factors from its scope.
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