In the context of the global energy crisis and environmental pollution, new energy vehicles, especially zero-emission and pollution-free EVs, are gradually replacing traditional internal ...
Learn MoreThe bidirectional pulse heating technology is set to a pulse frequency of 2 Hz, which is the highest steady-state frequency available for the physical bidirectional DC/DC module used in charger that available in the market. Battery pack model. The battery cell is modeled firstly, after which the battery pack is described as a lumped …
Learn MoreIn this paper, an optimal pulse heating strategy is proposed for low-temperature heating of lithiumion battery. Firstly, this paper establishes a coupling model to describe the electro …
Learn MoreThe creation of new energy vehicles will help us address the energy crisis and environmental pollution. Jia Mingzheng, Ma Ziliang, Hei Zhonglei. Study on the Influence of the ...
Learn MoreAs the major power source for electric vehicles (EVs), lithium-ion batteries (LiBs) suffer from the degradation of technical performance and safety at low temperatures, which restricts the popularization of EVs in frigid regions. Thus, this study developed an extremely fast electromagnetic induction heating system in order to …
Learn MoreBattery self-heating technology has emerged as a promising approach to enhance the power supply capability of lithium-ion batteries at low temperatures. However, in existing studies, the design of the heater circuit and the heating algorithm are typically considered separately, which compromises the heating performance.
Learn MoreWith the advantages of fast heating rate, good temperature uniformity and simple system structure, the battery pulse heating technology is an effective method to solve the problem of low temperature application of the lithium-ion batteries. In this paper, the research progress of pulse heating technology is summarized from the three ...
Learn MoreThe results show that the optimal variable‐frequency pulse pre‐heating strategy can heat the lithium‐ion battery from −20 C to 5 C in 1000 seconds. Meanwhile, …
Learn MoreTherefore, the heating efficiency and speed is usually high with good temperature uniformity. Provided that the heating energy comes from the battery, the internal heating method is termed ...
Learn MoreElectric vehicles suffer from significant driving range loss at subzero temperature environments due to reduced energy and power capability of Li-ion batteries. Therefore the battery must be heated to suitable operating temperature before the operation process begins. The effect of the pulse heating method based on the fuzzy logic control is …
Learn MoreDOI: 10.1016/j.est.2023.109650 Corpus ID: 265376291 An optimal self-heating strategy for lithium-ion batteries with pulse-width modulated self-heater @article{Fan2024AnOS, title={An optimal self-heating strategy for lithium-ion batteries with pulse-width modulated self-heater}, author={Yunsheng Fan and Zhiwu Huang and Heng …
Learn MoreThe proposed bidirectional pulse heating technology can realize the rapid preheating of LIBs at low temperatures. In particular, the battery packs could be …
Learn MoreDOI: 10.1016/J.IJHEATMASSTRANSFER.2019.02.020 Corpus ID: 127709540 Experimental study on pulse self–heating of lithium–ion battery at low temperature @article{Qu2019ExperimentalSO, title={Experimental study on pulse self–heating of lithium–ion battery ...
Learn MoreTo improve the low-temperature charge-discharge performance of lithium-ion battery, low- temperature experiments of the charge-discharge characteristics of 35 Ah high-power lithium-ion batteries have been conducted, and the wide-line metal film method for heating batteries is presented. At −40 °C, heating and charge-discharge …
Learn MoreBattery warming at low temperature is a critical issue affecting battery thermal management. In this study, the pulse self-heating strategy is proposed to enable quick and safe warming of lithium ...
Learn MoreAC heating system has been designed based on a wireless energy transfer system, its structure is shown in Fig. 1, where U i n is a DC power source, which provides energy for the whole system. When DC passes through an inverter consisting of power MOSFETs S 1 − S 4, it is converted into high-frequency AC which is then applied to LCC, …
Learn MoreWang et al. [82] proposed a self-heating lithium-ion battery (SHLB) structure that can self-heat in a cold environment (Fig. 11). A nickel foil with two tabs was embedded into the lithium-ion battery to generate ohmic heat for battery heating [82, 86]. One tab was electrically connected to the negative terminal and the other was extended ...
Learn MoreThe 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 dendrite. The growing of lithium dendrites will penetrate the separator, and cause the internal short circuits and thermal runaway of cells. Thus, battery preheating is essential …
Learn MoreSection snippets Descriptions and control strategy. Fig. 1 presents a schematic diagram of the proposed bidirectional pulse heating circuit. The system includes two battery packs consisting of four 18650 LIBs in series, two metal-oxide-semiconductor field-effect transistors (MOSFETs), a DC/DC converter, four inductances, and four switches.
Learn MoreZhao et al. [16] proposed a new charging technology using current pulse stimulation to charge the battery to promote the low-temperature performance of LiFePO 4 /C power battery. At the end of charging, the battery temperature increased from −10 °C to 3 °C, and the charging time was 24% shorter than that of the CC-CV, and the capacity …
Learn MoreWhen the heating power was 2.07 W, the internal temperature of the HP battery was controlled to be below 45 C, but the battery temperature under other heat dissipation conditions exceeded 55 C. Zhao Rui [ 42 ] used 3 and 8 Ah lithium batteries with grooved aluminum HPs (air-cooled, water bath, and air-cooled and spray water mist …
Learn MoreA bidirectional pulse current heating strategy without external power was proposed. • Effects of circuit parameters and initial SOC on heating performance were analyzed. • LIBs can be heated from −10 C to 0 C in 120 s …
Learn MoreIn order to enhance the energy efficiency and reduce the heating time of batteries, an optimal self-heating strategy is introduced, utilizing a novel pulse width …
Learn MoreBattery internal heating technology could efficiently enhance the power supply capability of Lithium-ion batteries at low temperature. However, existing internal heating research suffer from feasibility, efficiency and flexibility.
Learn MoreHeating performance of the proposed self-heating strategy is experimentally tested. • Degradation under bidirectional pulse current self-heating strategy is analysed. • LIBs can be heated from −15 C to 0 C at 6.38 C/min with little degradation. • …
Learn MoreWith the advantages of fast heating rate, good temperature uniformity and simple system structure, the battery pulse heating technology is an effective method to solve the …
Learn MoreAs the major power source for electric vehicles (EVs), lithium-ion batteries (LiBs) suffer from the degradation of technical performance and safety at low temperatures, which restricts the popularization of EVs in frigid regions. Thus, this study developed an extremely fast electromagnetic induction heating system in order to improve the poor …
Learn MoreQu Z, Jiang Z, Wang Q. Experimental study on pulse self–heating of lithium–ion battery at low temperature. Int J Heat Mass Transf 2019; 135: 696–705. Crossref
Learn MoreThe average charging power of BYD Seal in the winter test is close to 70kW, calculated based on 3.2V, 150Ah, 172 strings and -15 battery internal resistance of 1.5mΩ (assuming the number of positive electrode layers is still 26, and the total resistance of
Learn MoreLithium-ion battery structure that self-heats at low ...
Learn MorePreheating is an effective solution to the severe degradation of lithium-ion battery (LIB) performance at low temperatures. In this study, a bidirectional pulse-current preheating strategy for LIBs at low temperatures without external power is proposed, which involves the incorporation of a direct current/direct current converter and a series of …
Learn MoreIn this paper, an optimal pulse heating strategy is proposed for low-temperature heating of lithiumion battery. Firstly, this paper establishes a coupling model …
Learn MoreHence, after pulse heating, the battery surface''s maximum temperature was at the geometric centre''s lower position, the maximum temperature difference did not exceed 2 ℃, and the temperature uniformity was good. ... Energy Storage Science and Technology, 2022, 11(12): 3957-3964. share this article. 0
Learn MoreThe results show that the optimal variable-frequency pulse pre-heating strategy can heat the lithium-ion battery from −20 C to 5 C in 1000 seconds. Meanwhile, …
Learn MoreBattery warm-up is one of the core technologies of the battery thermal management system to alleviate the deterioration of batteries in cold weather. To this end, this paper reviewed the recent research progress of rapid heating methods, including internal self-heating, mutual pulse heating (MPH), self-heating lithium-ion battery, alternating …
Learn MoreThe bidirectional pulse heating technology is set to a pulse frequency of 2 Hz, which is the highest steady-state frequency available for the physical bidirectional DC/DC module used in charger that available in the …
Learn MoreState Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing, China. Search for more papers by this author. ... The results show that the optimal variable-frequency pulse pre-heating strategy can heat the lithium-ion battery from −20°C to 5°C in 1000 seconds. Meanwhile, it brings less damage to the battery …
Learn MoreThe battery thermal management system is a key skill that has been widely used in power battery cooling and preheating. It can ensure that the power battery operates safely and stably at a suitable temperature. In this article, we summarize mainly summarizes the current situation for the research on the thermal management system of …
Learn MoreDOI: 10.1016/j.ensm.2024.103173 Corpus ID: 266861454 Targeting the low-temperature performance degradation of lithium-ion batteries: A non-destructive bidirectional pulse current heating framework Since the beginning of the new century, the objectives of deep ...
Learn MoreAbstract: AC pulse heating is a promising preheating method for lithium-ion batteries due to its low energy cost and high efficiency. To avoid the lithium …
Learn Moresafety risks. Bidirectional pulse heating is an internal heating method that uses a periodic charging and discharging current to generate Ohmic (also referred to as Joule or resistive) and reaction heat inside the battery. Compared with external heating methods such as PTC heating, bidirectional pulse heating is highly efficient with
Learn MoreThe secret to our success is our patented pulse technology which removes and prevents the buildup of lead-sulfate deposits on battery plates, allowing the battery to accept and store the maximum power. Turn select PulseTech commercial 6V or 12V battery ...
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