DOI: 10.1016/j.est.2021.103651 Corpus ID: 244876378; Numerical study on a preheating method for lithium-ion batteries under cold weather conditions using phase change materials coupled with heat films
Eventually, the improvement of the battery’s output performance is discussed. The results reveal that the proposed designs can effectively preheat the battery with a temperature rise higher than 10°C. The single-PCM design using LiNO 3 ·3H 2 O shows the best preheating ability, while CH 3 COONa·3H 2 O is the most economical.
The optimum operating temperature is between 15 °C and 35 °C. Too high temperatures can lead to catastrophic phenomena such as thermal runaway. The thermal gradient within the system should not exceed 5 °C. An effective Battery Thermal Management System can mitigate this problem. This study analysed a lithium-ion battery with a bag structure.
The single-PCM design using LiNO 3 ·3H 2 O shows the best preheating ability, while CH 3 COONa·3H 2 O is the most economical. Although the dual-PCM design cannot outperform the single-PCM design, it can preheat the battery twice and show better flexibility.
The ideal working temperature for lithium-ion cells is between 15 and 35 °C (288–308 K) . Failure to meet this range may cause problems with the durability and safety of the cell. Even in extreme cold weather conditions (−20 °C–253.15 K), the cell will suffer problems related to improper storage .
In the first part of the discharge, the increased exchange surface area in the PCM has no influence. However, as the core temperature continued to exceed the minimum temperature of the phase transition, the rate of battery temperature increases at the same state of discharge decreased in the case of the fin structure in the PCM.
During the phase transition, the PCM does not change its temperature unless the effects are due to impurities in the material itself. Such impurities affect the temperature constancy at the beginning and end of liquefaction, but with a range that varies by more than about 2 °C (275.15 K) ( different from ).
DOI: 10.1016/j.est.2021.103651 Corpus ID: 244876378; Numerical study on a preheating method for lithium-ion batteries under cold weather conditions using phase change materials coupled with heat films
Get PriceIn this study, a coupled heating method combining phase change materials (PCM) with heat films (HF) is proposed to warm up prismatic batteries at low temperatures. …
Get Price6 · Numerical study on a preheating method for lithium-ion batteries under cold weather conditions using phase change materials coupled with heat films
Get PriceTemperature control was evaluated using a passive (low-cost) system with phase-change materials (PCMs). The material chosen was n-octadecane (paraffin) due to its thermophysical properties and market price. Four different cooling methods were analysed, including air, fins, pure PCM, and a mixed system of single cells and small battery packs.
Get PriceFor the preheating mode, adopting an inlet flow rate of 2 L·min –1, an inlet temperature of 15 °C, and a preheating time of 600 s is optimal by considering both heating performance and energy efficiency under a low …
Get Price3 · This study introduces a novel comparative analysis of thermal management systems for lithium-ion battery packs using four LiFePO4 batteries. The research evaluates advanced configurations, including a passive system with a phase change material enhanced with extended graphite, and a semipassive system with forced water cooling.
Get PriceThis article proposes a lithium-ion battery thermal management system based on immersion cooling coupled with phase change materials (PCM). The innovative thermal management analysis is conducted on the novel prismatic 4090 battery, comparing natural convection cooling with forced air cooling under the same environmental conditions and discharge rates. …
Get PriceIn this work, a preheating management system for large-capacity ternary lithium battery is designed, where a novel coupling preheating method of heating film and phase change material (PCM) is employed to preheat. In order to make the preheating system meet the preheating requirements of the battery pack, effects of four influencing factors (heating film …
Get PriceBattery thermal management with phase change materials (PCM) has been limited by leakage, low thermal conductivity and rigidity, and the inability to preheat at low temperatures. To solve these problems, a wide-temperature flexible composite PCM (FCPCM) was prepared with a high-temperature open refining method. Styrene ethylene butylene …
Get Price3 · This study introduces a novel comparative analysis of thermal management systems for lithium-ion battery packs using four LiFePO4 batteries. The research evaluates advanced …
Get PriceTemperature control was evaluated using a passive (low-cost) system with phase-change materials (PCMs). The material chosen was n-octadecane (paraffin) due to its thermophysical properties and market price. …
Get PriceWe evaluate different technologies in BTMSs, such as air cooling, liquid cooling, phase change materials, heat pipes, external preheating, and internal preheating, discussing their advantages and disadvantages. Through comparative analyses of high-temperature cooling and low-temperature preheating, we highlight the research trends to inspire future researchers. …
Get PriceThe results reveal that the proposed designs can effectively preheat the battery with a temperature rise higher than 10°C. The single-PCM design using LiNO 3 ·3H 2 O shows …
Get PriceThe increasing demand for electric vehicles (EVs) has brought new challenges in managing battery thermal conditions, particularly under high-power operations. This paper provides a comprehensive review of battery thermal management systems (BTMSs) for lithium-ion batteries, focusing on conventional and advanced cooling strategies. The primary objective …
Get PriceIn this study, a low-temperature battery thermal management system based on composite phase change material of paraffin (82 wt%), graphite (15 wt%) and electrolytic copper powder (3 wt%) was proposed. The system leverages the current released by the battery for preheating without requiring an extra energy supply.
Get PriceFor the preheating mode, adopting an inlet flow rate of 2 L·min –1, an inlet temperature of 15 °C, and a preheating time of 600 s is optimal by considering both heating performance and energy efficiency under a low ambient temperature (Ta) of −20 °C.
Get PriceConceptual experiments were conducted to investigate the effects of phase change materials (PCMs), inlet water temperature, and intermittent pump startup strategies on battery performance. The obtained experimental results demonstrate that low temperatures lead to increased electrochemical impedance and reduced charge–discharge capacity in batteries. …
Get Price4.8 °C, respectively. The results of the battery preheating test show that the chosen CPCM has good heating capacity, thermal uniformity and thermal conversion efficiency. Low Keywords: lithium-ion battery, composite phase change material, self-preheating, thermal conversion efficiency, low-temperature battery thermal management
Get PriceThe model was adopted to determine the optimum AC amplitude and frequency for battery preheating, allowing the preheating process to remain efficient and consistent with an average heating rate of 2.85 °C/min. The corresponding data demonstrated that there was no remarkable capacity reduction and lithium deposition occurred during the whole preheating …
Get PriceThis article proposes a lithium-ion battery thermal management system based on immersion cooling coupled with phase change materials (PCM). The innovative thermal management …
Get PriceIn this study, a coupled heating method combining phase change materials (PCM) with heat films (HF) is proposed to warm up prismatic batteries at low temperatures. Two heating modes, applying the PCM/HF to the larger side surfaces (Heating Mode I) and the smaller side surfaces (Heating Mode II) of a battery cell, are designed and compared by a ...
Get PriceIn this work, a preheating management system for large-capacity ternary lithium battery is designed, where a novel coupling preheating method of heating film and phase change material (PCM) is employed to preheat. In order to make the preheating system meet the preheating requirements of the battery pack, effects of four influencing factors ...
Get PriceIn this study, a low-temperature battery thermal management system based on composite phase change material of paraffin (82 wt%), graphite (15 wt%) and electrolytic copper powder (3 …
Get PriceZhang et al. proposed a battery preheating method combining phase change materials and heating films, and the heating films were attached on the two larger side surfaces of the battery. When the heating power was fixed at 20 W, it took about 613 s to heat up the battery from − 20°C to 10°C, while the temperature difference of battery was less than 5°C. The …
Get PriceBattery thermal management system (BTMS) based on phase change materials (PCMs) is simple in structure while presenting outstanding performance, but the core …
Get PriceBattery thermal management system (BTMS) based on phase change materials (PCMs) is simple in structure while presenting outstanding performance, but the core bottleneck hindering the… With the increasing demand for renewable energy worldwide, lithium-ion batteries are a major candidate for the energy shift due to their superior capabilities.
Get PriceDownloadable (with restrictions)! In this work, a preheating management system for large-capacity ternary lithium battery is designed, where a novel coupling preheating method of heating film and phase change material (PCM) is employed to preheat. In order to make the preheating system meet the preheating requirements of the battery pack, effects of four influencing factors …
Get Price6 · Numerical study on a preheating method for lithium-ion batteries under cold weather conditions using phase change materials coupled with heat films
Get PriceThe results reveal that the proposed designs can effectively preheat the battery with a temperature rise higher than 10°C. The single-PCM design using LiNO 3 ·3H 2 O shows the best preheating ability, while CH 3 COONa·3H 2 O is the most economical.
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