1. Introduction. The current global problems such as energy shortage, greenhouse effect and air pollution emphasize the need for the large-scale popularization and application of electric vehicles [1], [2].Lithium-ion batteries are widely used in electric vehicles because of their advantages in energy density, life cycle, safety and cost [3], …
current internal heating is ineffective and instead implemented expen - sive, heavy alternating-current generators for heating. More recently, Ji and Wang9 thoroughly reviewed a wide range of heating strategies for Li-ion batteries and demonstrated that self-resistive heating from −20 °C to 20 °C takes ~ 120 s and consumes ~ 15% battery energy.
This need for direct cooling arises due to the significant heat generated by the high current flowing into the battery during fast charging. Effective battery cooling measures are employed to efficiently dissipate excess heat, thereby safeguarding both the charging rate and the battery from potential overheating issues. Heating Systems
(a,b) The schematic of battery cell with heat pipe and location of thermocouples of the front (T 1-T 4), backside (T 5-T 8) of the cell and heat pipe (T 9-T 12), (c) picture of insulated battery cell with heat pipe and (d) domains and boundary condition of the heat pipe and cell.
Battery electronification: intracell actuation and thermal ...
This study indicated that a high-frequency AC current with a large amplitude is recommended to offer both high heating speed and long battery cycle life. Yang et al. [17] compared the external and internal heating solutions in terms of the heating speed and safety.
Effective thermal management is essential for ensuring the safety, performance, and longevity of lithium-ion batteries across diverse applications, from electric vehicles to energy storage systems. This paper presents a thorough review of thermal management strategies, emphasizing recent advancements and future prospects. The …
Aiming at the problem of high battery heat generation during the super fast‑charging process of electric vehicle fast‑charging power batteries, this study designs a fast‑charging …
Internal heating methods can also be further divided into two types, namely, self-heating and current excitation preheating. The characteristics and limitations of each type are analyzed in the next two sections. ... The other terminal is connected to a heat sink to transfer heat to the battery. Download: Download high-res image (360KB ...
Heating experiments of a single cell under different frequencies, states of charge and current amplitudes and the battery packs with different numbers of battery cells in series were conducted. Experimental results indicate that this method can heat the battery from −20 °C to 0 °C in 142s at an root mean square value of 3C and an average ...
Self-heating lithium-ion battery (SHLB) structure provided a practical solution to the poor performance at subzero temperatures. • We report an improved SHLB that heats from −20 °C to 0 °C in 12.5 seconds, or 56% more rapidly, while consuming 24% less energy than previously reported.. The nickel foil heating element embedded inside a …
High Current Discharge: When a lithium battery discharges high current, it generates heat. Devices that quickly require a lot of power, like electric vehicles or high-performance gadgets, can cause this issue. The battery''s internal resistance plays a role here; higher resistance leads to more heat generation during high current discharge.
In this study, a pulse internal self–heating strategy is proposed to achieve fast heating of LIB. An electric circuit is built to generate intermittent high current in the battery. The temperature evolutions of batteries under intermittent high current discharge are tested in an environment chamber.
External heating uses an extra device or material to heat the battery, such as positive temperature coefficient (PTC) device, heat pump, or phase change material (PCM). Internal heating heats the LIB with its own resistance, including heating by an excitation current and self-heating from embedding a thin nickel foil as an internal cell …
High current amplitudes facilitate the heat accumulation and temperature rise. Low frequency region serves as a good innovation to heat the battery because of the large impedance. Wide voltage limitations also enjoy better temperature evolution owing to the less current modulation, but the temperature difference originated from various …
A high degree of heating uniformity of the bidirectional pulsed current for the prismatic battery has been shown [58]. Another research also used bidirectional pulsed current with an amplitude step, and have shown by simulation that this heating method can achieve unchanged SOC and reach about 0.7 °C/min heating rate [59].
The internal heating method uses the characteristics of increased internal impedance of the battery at low temperatures and increased heat generation during charging and discharging to heat the battery internally. Internal heating can be divided into charging current heating, discharging current heating and AC excitation heating …
This study reports the findings of a comprehensive investigation of pulsed operation for lithium-ion battery pre-heating. The bidirectional pulsed current heating …
However, for large-sized thick batteries, local overheating may occur. At the same time, in the actual operation of EVs, the output current of the battery depends on the power demand of the driver. In this regard, it is unrealistic to heat the traditional battery with high current discharge [54, 55]. Download: Download high-res image (534KB)
Journal of Power Sources 129 (2004) 368–378 HEV battery heating using AC currents T.A. Stuart a, A. Hande b,∗ b a University of Toledo, Toledo, OH, USA Lake Superior State University, Sault Ste. Marie, MI, USA Received 29 September 2003; accepted 21 October 2003 Abstract A unique method has been developed for internally heating hybrid electric …
To summarize, self-heating strategies use a battery''s internal resistance to generate heat and often require a large heating current, resulting in a high risk of lithium plating and reduced cycle life of the battery. The large heating current increases the overcharge/over-discharge problem of the battery at both high and low SOC.
Subsequently, the bidirectional pulse-current heating strategy was employed to investigate the changes in the heating rate. The data presented in Fig. 8 show that an increase in the SOC increased the battery heating rate. When the battery SOC was at 50%, the battery required 178 s to preheat from −15 °C to 0 °C, whereas at a full …
3 · Battery specific heat capacity is essential for calculation and simulation in battery thermal runaway and thermal management studies. Currently, there exist several …
DOI: 10.1016/J.EST.2020.101885 Corpus ID: 224973868; Battery heating for lithium-ion batteries based on multi-stage alternative currents @article{Zhang2020BatteryHF, title={Battery heating for lithium-ion batteries based on multi-stage alternative currents}, author={Lei Zhang and Wentao Fan and Zhenpo Wang and Weihan Li and Dirk Uwe …
In this paper, a heating strategy using high-frequency alternating current (AC) is proposed to internally heat lithium-ion batteries (LIB) at low temperatures. The …
Battery internal heating technology could efficiently enhance the power supply capability of Lithium-ion batteries at low temperature. However, existing internal heating research …
This heating current is achieved by some battery modules are discharged while the others are charged. The electricity transfer among the modules can be utilized to heat the batteries efficiently .
Increasing the capacitance in the converter can reduce the ripple in the current, the high frequency heating of the battery is reduced and improving the charging and discharging efficiency of the battery. ... its peak voltage is less than 35 mV, and the voltage fluctuation rate is less than 2 %. The battery has a high ability to absorb current ...
The results in Fig. 1 indicate dendrite healing at current densities exceeding about 10 mA cm −2.We hypothesize that Joule heating of the battery at high operational current density (>10 mA cm −2) is sufficient to induce extensive surface migration of lithium atoms, which is responsible for the healing or dissipation of dendrites resulting in a …
After 15 s, the higher current is applied to the battery and then some echelon current is delivered to the LIB, to ensure battery voltage being close to the optimal heating voltage of 2.43 V. Battery temperature increases with an average temperature-rise rate of 18.1 °C·min −1, because the average heating voltage is a little higher than 2. ...