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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 pack of the electric vehicle. Figure 1 shows that the LIB pack consists of four modules; each module is divided into AB batteries.
By applying rectangular pulse waveform at 10 A and 30 Hz, the proposed strategy could heat batteries from −24 °C to 25.6 °C within 600 s. Besides, the pulsed self-heating strategy at low temperatures also ensured fast and safe preheating performance. .
Firstly, the heating model of battery modules is established in the software of finite element analysis and the results are calculated. Secondly, the experiment is conducted using the PTC method, which shows that this method greatly improves the performance of lithium-ion power batteries at low temperature.
An optimal internal-heating strategy for lithium-ion batteries at low temperature considering both heating time and lifetime reduction. Appl. Energy. 256, 113797 (2019) Qu, Z.G., Jiang, Z.Y., Wang, Q.: Experimental study on pulse self–heating of lithium–ion battery at low temperature. Int. J. Heat Mass Transf. 135, 696–705 (2019)
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 19 b).
Wu, X., Chen, Z., Wang, Z.: Analysis of low temperature preheating effect based on battery temperature-rise model. Energies 10, 1121 (2017) Ruan, H., Jiang, J., Sun, B., et al.: An optimal internal-heating strategy for lithium-ion batteries at low temperature considering both heating time and lifetime reduction. Appl. Energy. 256, 113797 (2019)
In order to improve the performance of the lithium-ion power batteries at low temperature, …
Battery self-heating technology has emerged as a promising approach to enhance the power supply capability of lithium-ion batteries at low temperatures. However, in …
In order to improve the performance of the lithium-ion power batteries at low temperature, simulation and experiments are conducted. The PTC heating method that the single cells are …
Lithium-ion batteries suffer severe power loss at temperatures below zero degrees Celsius, limiting their use in applications such as electric cars in cold climates and …
The battery pack could be heated from −20.84°C to 10°C in 12.4 min, with an average temperature rise of 2.47 °C/min. AC heating technology can achieve efficient and …
If V act = 0 V activation is implemented, one can convert 10% more electric energy into internal heat for battery warm-up from very low temperatures, thereby further …
Preheating is an effective solution to the severe degradation of lithium-ion battery (LIB) performance at low temperatures. In this study, a bidirectional pulse-current …
Xu et al. proposed a battery low-temperature hybrid heating method in order to fully utilize the heat generated by the battery and the heating circuit. The battery and MOSFET …
This article reviews various internal heating methodologies developed in recent years for Li-ion batteries, including mutual pulse current heating, alternating current (ac) heating, compound …
Lithium-ion batteries (LIBs) are commonly used in electric vehicles (EVs) due to their good performance, long lifecycle, and environmentally friendly merits. Heating LIBs at low …
The other is the ACB=All Climate Battery all-climate battery, which can be used to heat the battery at low temperatures to improve discharge energy and overall efficiency. This will be used in vehicles with relevant technology at the 2022 …
Several studies have highlighted battery preheating as the best way to reduce charging time at low temperatures; however, relying solely on preheating is insufficient for …
When a LIB is heated at low temperatures, short heating duration and low energy consumption are expected. In addition, the uniform temperature distribution in the …
Battery self-heating technology has emerged as a promising approach to …
With the wide application of electric vehicles (EVs) in cold areas, low temperature heating of battery is becoming more and more mature, and the way of battery bottom 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 conductivity of the electrolyte and the kinetics of Li+ inside lithium-ion batteries (LIBs) will decrease at low temperatures, which may promote the formation of lithium …
The performance, life and security of the lithium-ion power batteries used in electric vehicles are closely related to battery temperature, and at present researches pay more attention to cooling …
Direct Battery Electrolyte Heating and Temperature Maintenance at Low Temperatures Jahangir Rastegar . Omnitek Partners, LLC, 85 Air Park Drive, Unit 3, Ronkonkoma, New York 11779 . …
Several studies have highlighted battery preheating as the best way to …
Xu et al. proposed a battery low-temperature hybrid heating method in order …
The ultimate goal of battery preheating is to recover battery performance as …
The established high-frequency heating strategy is verified, and the impact of low-temperature (253.15 K) preheating of the battery as well as the thermal distribution of …