enabling rapid heating of the battery pack at low temperatures Yalun Li,1 Xinlei Gao,1,2 Yudi Qin,1 Jiuyu Du,1 Dongxu Guo,1,3 Xuning Feng,1 Languang Lu,1 Xuebing Han,1 and Minggao Ouyang1,4,* SUMMARY Heating battery at low temperatures is fundamental to avoiding the range anxiety and the time-consuming charging associated with electric vehicles ...
To charge the battery pack in a low-temperature environment, it must be preheated to a suitable temperature. This paper proposes an external heating method that is …
This paper reports a series of experiments on the low-temperature charge-discharge of a [email protected] LiMn 2 O 4 battery cell and a battery pack comprising three cells. The results show that the charge …
-The low-temperature preheating of lithium-ion batteries is an important means for improving their fast charging performances in electric vehicles at low temperatures. In recent years, a trend has ...
The safety hazard of battery pack has been greatly reduced with the technical innovation in both of cell materials and intelligent management system level, but the range anxiety, primarily leaded by the poorly electrical performance of lithium-ion battery under low temperature especially lower than −20 °C, is a dominating barrier for popularizing EVs in cold …
Results show that the low-temperature preheating system can warm up the preheating battery pack from −25 °C to 0 °C within 7 min, raise the temperature of the power battery pack from −25 °C to 0 °C within 27 min, and further increase the temperature of the power battery pack to 8 °C, achieving its maximum pulse discharge test in low SOC 0 (33.5 …
Wang et al. [18] summarized different preheating methods and techniques, categorizing the low-temperature preheating of LIB into internal and external preheating based on their heat transfer mechanisms.They also discussed the advantages and disadvantages of these methods. Internal heating refers to the electric reaction heat of the battery itself or the …
The results show that (1) in different low-temperature environments, the time of pre-hea-ting the battery pack to make its temperature higher than 0℃ shows a linear change; (2) the pre-heating ...
At present, most researchers focus on the heat dissipation of the battery, but few people study the preheating of the battery. There are three different types of media for BTMS preheating studies: air, liquid, and phase change material (PCM) [8].Yi et al. [9] evaluated the effect of BTMS based on high-pressure hot air on battery startup heating at low …
The paper proposes a power battery low-temperature AC preheating circuit to enhance battery performance at low temperatures. The heating device is used in the LIB …
Abstract: Plug-in hybrid electric vehicles (PHEVs) with large battery packs have significant advantages in improving fuel efficiency and lowering harmful emissions. However, battery charging and discharging performance degrades dramatically at low temperatures, resulting in increasing vehicle operating expenses, which hinders the deployment of PHEVs in severe cold …
The preheating target of this work is heating the battery pack to 293.15 K in a short time under low ambient temperatures, and ensuring that the temperature difference of the battery pack is less than 5 K.
DOI: 10.1109/VPPC.2012.6422509 Corpus ID: 26297179; Experimental study on the effects of pre-heating a battery in a low-temperature environment @article{Song2012ExperimentalSO, title={Experimental study on the effects of pre-heating a battery in a low-temperature environment}, author={Hyun-Sik Song and Jin-Beom Jeong and Baek-haeng Lee and Dong …
It proves that the cPCM based thermal management system can rapidly preheat the battery pack at low temperatures. When the temperature of battery pack increased to 10 °C, the battery packs were discharged at 12.8 A (2 C-rate). Fig. S4 also shows the temperatures of the battery packs with and without cPCM at 2 C-rate discharge period. The ...
To charge the battery pack in a low-temperature environment, it must be preheated to a suitable temperature. This paper proposes an external heating method that is easy to implement and does not harm the battery pack. We design a battery pack of 20 single battery modules connected in series, with a capacity of 72 V/100 Ah, and install 11 heating …
The ultimate goal of battery preheating is to recover battery performance as quickly as possible at low temperatures while considering battery friendliness, temperature …
The Li-ion battery is widely used in power tools, energy storage systems, and electric vehicles. In reality, battery thermal management is essential to control the battery temperature within a specific temperature range. Although research has shown that preheating the battery at low temperatures on cold days can improve output performance ...
Finally, future trends of battery heating methods were discussed, and more breakthroughs should be made in battery aging mechanisms and preheating strategies in a battery module/pack level. The research was helpful to promote the development of heating methods and solve engineering problems. It also provided plenty of references for the research of rapid heating methods and …
Keywords: lithium ion battery; low temperature preheating; temperature-rise model; heating time; power consumption 1. Introduction Lithium batteries have become the main source of power for electric vehicles because of the advantages they offer, such as reduced pollution, a long life cycle, high energy density, and good power performance [1 ...
The continuous low temperature in winter is the main factor limiting the popularity of electric vehicles in cold regions. The best way to solve this problem is by preheating power battery packs. Power battery packs have relatively high requirements with regard to the uniformity of temperature distribution during the preheating process. Aimed at this problem, …
Hence, the Li-ion battery pack is heated before usage to enhance its performance and lifetime. Recently, many internal heating methods have been proposed to provide fast and efficient pre-heating.
Effect analysis on the low-temperature preheating performance of a novel micro-combustor air preheater for the cold start of the Li-ion battery packs Author links open overlay panel Jintao Li a, Jiaqiang E a b, Jiangjun Ding a, Lei Cai a, Bo Luo a
by applying appropriate excitation, thereby preheating the battery at low temperatures [16]. Ruan H et al. proposed an optimal internal warm-up strategy based on a multi-objective
When the power of heating films is 1 W, 3 W, and 5 W, it takes 395 s, 190 s and 126 s to preheat the battery temperature from − 10°C to 25°C, respectively. Additionally, …
Since the improvement of battery materials cannot enhance the overall performance of the power battery in the full temperature range in a short time, thermal management is adopted for the battery module/pack level, that is, the temperature of the battery pack is controlled within a suitable range by preheating to countervail the negative effects caused by low temperature, …
Battery warm-up is one of the core technologies of the battery thermal management system to alleviate the deterioration of batteries in cold weather.
Luo et al. proposed a low-temperature battery pack preheating technique based on conductive cPCM, and the system can achieve a temperature rise rate of 17.14 °C/min and a temperature gradient of 3.58 °C (Figure 19b). An energy conversion model is developed to explain the energy conversion relationship of the battery under low-temperature heating to …
Wang et al. [64] surveyed the potential economic benefits of preheating battery pack in a PHEV by air heating strategy in the powertrain, ... [111] so that the same system can also be used for battery preheating at low temperatures by changing the direction of current flow. To summarize, Peltier-effect heating can achieve battery heating safely and reliably with …
battery. At low temperatures, an external energy source is used to rapidly warm up the electric heater. When the heater temperature rises rapidly, the fan blows the hot air toward the battery system, and batteries are heated by the air convec-tively. The entire heating system includes an energy source, a heater, a fan, and other control components. The air heating method requires …
In order to maintain the battery at the optimal operating temperature for EVs, which ranges from 15 °C to 35 °C [11], [12], researchers are conducting extensive studies on efficient and safe methods of preheating batteries from low temperatures. Battery preheating techniques can be categorized into internal and external heating, according to ...
2.1 Internal Self-heating Method. As shown in Fig. 1, Internal self-heating method does not need external excitation, but through charging and discharging the battery, it consumes energy on the internal resistance of the battery to generate heat, so as to achieve the purpose of low-temperature heating low temperature environment, charging heating often …
When the physical connection of the charging gun is completed, if the temperature of the battery pack is too low, it will use the electric energy provided by the charging pile to enter the preheating mode. If the temperature of the battery pack is too low during driving, the energy source is the power battery pack.
Download Citation | Preheating Strategy of Extended-range Electric Vehicle Power Battery Packs for Low-temperature Driving | The goal of this study is to improve the efficiency of discharge power ...
Plug-in hybrid electric vehicles (PHEVs) with large battery packs have significant advantages in improving fuel efficiency and lowering harmful emissions. However, battery charging and discharging performance degrades dramatically at low temperatures, ...
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