Safety issue on PCM-based battery thermal management: Material thermal stability and system hazard mitigation

Weng, Jingwen; Huang, Qiqiu; Li, Xinxi; Zhang, Guoqing; Ouyang, Dongxu; Chen, Mingyi; Yuen, Anthony; Li, Ao; Lee, Eric Wai Ming; Yang, Wensheng; Wang, Jian; Yang, Xiaoqing

doi:10.1016/j.ensm.2022.09.007

Cited by 115 publications

(26 citation statements)

References 153 publications

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“…Flexible PEG-based PCP thermal management systems have excellent weather resistance and wide applicability in addition to a high phase-change enthalpy. 21,22,62 Therefore, they are particularly suited for use in next-generation flexible intelligent devices. Yang et al 81 prepared a flexible polyester thermoplastic elastomer PCM (TPC-FCPCM) with polyether as a soft segment.…”

Section: Functional Polymers With Phase-change Abilitymentioning

confidence: 99%

“…Phase-change polymers (PCPs) prevent thermal runaway in ESDs by undergoing a phase change that absorbs heat when the temperature reaches the phase-change temperature. [20][21][22][23] The phase-change enthalpy, temperature, and rate are important parameters that affect the endothermic effect. 24 Polymers that undergo a sol-gel transition involve a similar thermal switch, in which the polymer undergoes a sol-gel transition when the ambient temperature reaches the sol-gel transition temperature; 8,[25][26][27] however, they have an additional advantage that is the sol-gel transition hinders or even eliminates ion transport inside the ESDs, thus switching off the current flow and preventing further heat accumulation caused by continued work under overheating conditions.…”

Section: Introductionmentioning

confidence: 99%

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Thermally responsive polymers for overcoming thermal runaway in high-safety electrochemical storage devices

Chen

Liu

Feng

et al. 2023

Mater. Chem. Front.

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Section: Functional Polymers With Phase-change Abilitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermally responsive polymers for overcoming thermal runaway in high-safety electrochemical storage devices

Chen

Liu

Feng

et al. 2023

Mater. Chem. Front.

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“…3,4 Therefore, an efficient and reliable thermal management system (BTMS) is very essential for a battery module. 5,6 Currently, there are three mainstream BTMSs that are being widely investigated according to transferring medium, such as air cooling, 7−9 liquid cooling, 10−12 and phase change material (PCM) cooling 13−15 systems. Because air cooling and liquid cooling systems for battery modules as active cooling methods usually require a lot of auxiliary equipment and space, it is difficult to satisfy the high-integration volume requirements of electric vehicles.…”

Section: Introductionmentioning

confidence: 99%

“…However, the thermal runaway problem of lithium-ion batteries severely restricts the application development of EVs and HEVs. If the heat accumulated in the battery module is not dissipated timely and promptly, the electrochemical performance of the power battery will seriously decrease and the service lifespan will also be greatly reduced. , Therefore, an efficient and reliable thermal management system (BTMS) is very essential for a battery module. , …”

Section: Introductionmentioning

confidence: 99%

Investigation on the Thermal Contact Resistance Mechanism of a Composite Phase Change Material for Battery Thermal Management

Deng

Liang³

et al. 2023

ACS Appl. Energy Mater.

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Composite phase change materials as passive thermal management systems have great potential application in power battery modules, but they are still limited by some drawbacks such as easy leakage, high rigidity, and low thermal conductivity. In this study, an excellent antileakage flexible composite phase change material has been prepared and utilized in the battery module. Styrene–butadiene–styrene and ethylene vinyl acetate with a synergistic effect are utilized to improve the antileakage and flexibility properties, which are beneficial to improve the thermal management effect of the battery module. Particularly, the mechanism of thermal contact resistance between the phase change material and battery module is deeply analyzed; the experimental results revealed that the maximum temperature and temperature difference can be maintained within 46.5 and 3.5 °C at 3C discharge rate, respectively. It indicates that the antileakage flexible CPCM can not only form a closer contact with the batteries but also exhibit excellent temperature controlling capacity, especially at a high discharge rate. This study can provide new insights into the decrease of the thermal contact resistance in the battery module; it will be suitable for other dynamic equipment such as energy storage power stations and firefighting power systems.

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“…[20][21][22][23] Owning to the simple structure, low price, and large latent heat during melting, PCM has become a very promising passive thermal management medium. Weng et al 24 pointed out that PCM-based BTMS is imperative not only for contributing to heat dissipation under normal working conditions but also for facilitating thermal hazard mitigation under extreme circumstances. Al-Hallaj et al 25 used pure paraffin PCM in BTMS for the first time and found that paraffin PCM can store a lot of heat during melting.…”

Section: Introductionmentioning

confidence: 99%

Thermal characteristics of Li‐ion battery based on phase change material‐aluminum plate‐fin composite heat dissipation

Liu

Gan

Chen

et al. 2022

Energy Science & Engineering

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A reliable battery thermal management system (BTMS) not only can effectively decrease the maximum temperature but also maintain the temperature uniformity of the lithium-ion (Li-ion) battery after grouping. Nevertheless, considering the deficiency of a single heat dissipation method, there exist challenges in efficient heat dissipation structure design, especially at high discharge rates. In this work, a composite heat dissipation structure of battery module with phase change material (PCM)-aluminum plate-fin is proposed. Meanwhile, the transient effects of different discharge rates, melting points, and thickness of PCM on the thermal characteristics of the module are analyzed. Results show that the maximum temperature of the module with PCM-aluminum plate-fin can be reduced by 25.8°C, 11.0°C, and 10.2°C respectively at 4 C discharge rate compared with natural convection, aluminum plate-fin, and paraffin PCM, and the maximum experimental error among them is less than 5%. During 2-5 C discharging, the melting rate of phase change increases first and then decreases, which leads to the trend of the maximum temperature and maximum temperature difference of the module rising with bending twice. When the ambient temperature is 25°C, the paraffin PCM with a melting point of 28°C is implemented for battery cooling because of its more rapid melting and heat absorption. The increase in PCM thickness is beneficial to the heat dissipation of the module. The optimal PCM thickness of 3 mm can realize temperature uniformity control within 2.5°C.

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Safety issue on PCM-based battery thermal management: Material thermal stability and system hazard mitigation

Cited by 115 publications

References 153 publications

Thermally responsive polymers for overcoming thermal runaway in high-safety electrochemical storage devices

Thermally responsive polymers for overcoming thermal runaway in high-safety electrochemical storage devices

Investigation on the Thermal Contact Resistance Mechanism of a Composite Phase Change Material for Battery Thermal Management

Thermal characteristics of Li‐ion battery based on phase change material‐aluminum plate‐fin composite heat dissipation

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