Qu et al. developed a pulsed self-heating method for battery heating, which can heat the battery from −10 °C to 10 °C within 175s while DC heating takes 280s to produce the same effect. Ji et al. proposed the mutual pulse heating method, which can heat the battery by adding DC-DC between two groups of batteries to generate mutual pulses.
Pulse current preheating is similar to AC heating. Pulse AC heating utilizes a discontinuous high-current discharge method to generate heat through the ohmic impedance inside the battery, thereby heating the battery.
The alternating pulse self-heater demonstrates significant potential in enhancing both heating efficiency and energy utilization while not aggregating the battery capacity. The proposed self-heater provides a solution against cold climates for lithium-ion batteries, improving the driving performance of electric vehicles in cold temperatures.
Pulse preheating technology is an effective internal heating method while facing challenges such as low heating rate, high energy consumption, and risk of over-charging or discharging. Here, for the first time, a multi-level electrochemical-thermal coupling model is developed on an open-source CFD platform.
Ji et al. proposed the mutual pulse heating method, which can heat the battery by adding DC-DC between two groups of batteries to generate mutual pulses. This method can control the heating rate by adjusting the pulse amplitude and time.
Abstract: 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 plating in the AC heating, upper bound of heating current (UBHC) should be obtained.
To acquire the temperature and voltage variation of the battery during self–heating, the pulse heating signal is applied to the battery. Heating is performed with the switching interval of 0.5 s. The initial ambient temperature is −10 °C, and heating is switched off when the battery reaches 10 °C. The SOC is set to 1.
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 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
The alternating pulse self-heater demonstrates significant potential in enhancing both heating efficiency and energy utilization while not aggregating the battery capacity. The
New energy vehicles are one of the most important strategic initiatives to achieve carbon neutrality and carbon peaking. and external ambient temperature of the battery heating system all have an effect on the heat balance performance. it was concluded that pulse heating could heat the battery from −10°C to 10°C in 175 s compared to
DC methods, such as constant current (CC) or constant voltage (CV) discharge and “all-climate battery” technologies , are fast but less energy-efficient and undesired acceleration of battery aging; while AC self-heating methods, such as sine and pulse [18, 19] waveforms, can offer better energy efficiency, temperature uniformity, and reduced aging,
After experimental tests, a comparative analysis was conducted, and the results showed that after 10 min cold soaking, modules containing PCM had smaller advantages than modules without PCM. After a long time of cold
The driving performance of electric vehicles seriously degrades due to the deterioration of lithium-ion batteries at low temperatures. Preheating lithium-ion batteries can effectively improve the driving range of electric vehicles at subzero temperatures. In this paper, an optimal pulse heating strategy is proposed for low-temperature heating of lithiumion battery. Firstly, this paper
Three heating strategies are proposed and compared using battery power, namely self-internal heating, convective heating and mutual pulse heating, as well as one strategy (AC heating) using
Many efforts have been made to preheat LIBs. The heating methods can be generally categorized into two groups, namely external heating [6, 7] and internal heating [8, 9].Guo et al. proposed a battery thermal management system to use refrigerant to directly heat and cool the battery without auxiliary devices.He et al. developed a method for heating the
Lithium-ion batteries are being extensively used as energy sources that enable widespread applications of consumer electronics and burgeoning penetration of electrified vehicles .They are featured with high energy and power density, long cycle life and no memory effect relative to other battery chemistries .Nevertheless, lithium-ion batteries suffer from
A pulse heating and power battery technology, which is applied to electric vehicles, secondary batteries, battery/fuel cell control devices, etc., can solve the problem of unexpected driving or shaking of vehicles, slowing down the pulse current generation speed, and the insufficiency of three-phase current feedback. Stability and other issues to achieve the effect of improving
The developed heating method based on the wireless energy transfer system can generate sinusoidal AC with a frequency of 85 kHz, which can efficiently heat the battery with a
Request PDF | On Jan 1, 2024, Fengyang Cai and others published Experimental study on self-heating strategy of lithium-ion battery at low temperatures based on bidirectional pulse current | Find
In addition, by studying and analyzing the ; (d) battery SOH changes under pulse heating and continuous DC heating ; (e) comparison diagram of pulse heating and continuous DC heating [97
The application of pulse heating is practical, as less than 15% of the battery energy is consumed for a 20 °C temperature increase. The present study is just the beginning of battery pulse heating. We pay more attention to the heating characteristics for pulse heating in
New energy vehicle: 1. if the current is too high, it will have a detrimental impact on the battery''s lifespan. Pulse heating refers to the utilization of pulse Some liquid heating methods eliminate the need for PTC heaters and instead couple the vehicle''s air conditioning heat pump system with the battery thermal management system. By
In 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-thermal-aging behavior of battery. Secondly, the heating time and capacity loss jointly form a multi-objective optimization problem with the current constraint.
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 health and improves
Abstract: 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 plating in the AC
Our main results show that the proposed hybrid pulse strategy can provide cells with an over 2.5 times faster heating rate from −20 °C to 0 °C and save nearly 60 % energy
The scheme of the proposed pulse self-heating system under pulse width modulation. (a) The topology of the self-heater. (b) The generated current waveform. Heating time; (c) Battery energy improvement. The battery utilizes its own energy for self-heating, and thus it needs to identify a lower bound of the initial SOC to ensure complete
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. The available energy released by the battery should
The experimental results showed that the proposed battery self-heating strategy can heat a battery from about -20 to 5 °C in less than 600 s without having a large negative impact on battery health. This paper provides a guideline for further study that
Abstract: Battery heating at subzero temperature is important for electric vehicles in northern winter, and alternative current (AC) pulse heating is with less energy loss and more efficient for
Pulse Clean Energy has already invested in nine diesel generation sites, which will be decommissioned and repurposed as grid-scale battery energy storage sites. “Through innovation in energy storage and optimisation, it is our ambition to enable the smooth transition to a zero-carbon energy network,” said Mendes.
To address this issue, a novel pulse heating method for Lithium-ion batteries based on full-bridge buck-boost converter is proposed in this paper. The current operation pattern is analyzed
Battery 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. To address this issue, a novel pulse heating method for Lithium-ion batteries based on full-bridge buck-boost converter is proposed in this paper. The
With 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
In this work, we established a three-dimensional heat transfer model and investigated the evolution of temperature uniformity within the self-heating lithium-ion battery (SHLB). Besides, a closed-loop control (CLC) strategy based on pulse heating was proposed to control the temperature difference/ uniformity of the cell in real-time during its self-heating
Under cold weather, the drive range was reduced by 42.8% due to reasons such as the energy consumption of cabin heating, the reduction of electric energy capacity of battery and a reduction of
In 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
The external heating method is currently mature, but compared with the small increase in the internal temperature of the battery, the energy consumed to generate this additional heat is relatively high; the internal heating method has the characteristics of high heating efficiency and rapid heating rate, but requires the addition of special heating circuit that
A heating method for lithium-ion battery is studied based on a simplified first principle electrochemical model. The criterion for avoiding lithium deposition is converted into current constraints under different temperature and state of charge. An experimental platform with closed-loop pulse current control function is built, by using of which, the effectiveness of the heating
The power battery is an important component of new energy vehicles, and thermal safety is the key issue in its development. During charging and discharging, how to enhance the rapid and uniform heat dissipation of power batteries has become a hotspot. This paper briefly introduces the heat generation mechanism and models, and emphatically
External heating methods heat the cell or battery pack by external heat sources, and the energy required for heating comes from an external energy source. The battery can be heated by the external heat source through a heat transfer medium, such as air and liquid. This heating method has the advantages of easy implementation and high safety, but it
A power battery and pulse heating technology, applied in battery/fuel cell control devices, electric vehicles, power management, etc., can solve the problems of inability to achieve high-frequency control, large effective battery charge and discharge current, etc., to reduce power consumption, protect Battery life, impact reduction effect
Compared with continuous direct current self-heating, the battery can be heated up from À10 °C to 10 °C by pulse heating within 175 s while the direct current heating consumes 280 s with
Preheating LIBs to their normal or optimal operating temperature range (20 °C∼40 °C) [13, 14] before using them in cold environments is a more effective approach than addressing this issue at the material level, such as by designing new electrolytes [15, 16] and electrode materials .Existing preheating methods can be broadly classified into two categories based on the
External heating methods are usually characterized by low system complexity, long heating time and high energy loss; while internal heating methods can achieve a shorter heating time, a higher
Qu 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. Chongqing Changan New Energy Automobile Technology Co., Ltd., Chongqing 401133, China. Research on energy management of hybrid energy storage system for electric bus. Show
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