In this paper, a lithium-ion battery model was established and coupled with the battery''s thermal management system, using a new type of planar heat pipe to dissipate heat of the battery. Compared with ordinary heat
A heat pipe (HP) heat dissipation model of a lithium-ion-battery pack is established for the climate in the central and southern regions in China, and the heat transfer effects of various fins with different spacing and thickness are investigated. According to the change of heat dissipation, inlet and outlet pressure difference and average heat transfer
In this study, experiments utilizing Li-ion battery packs were conducted under sealed conditions with constant current of 18 A. Temperatures were measured with and without micro heat pipe arrays (MHPAs) during the charge–discharge cycle. The temperature results of the Li-ion battery packs validated the effectiveness of the cooling
3 天之前· Using effective specific heat over the melting temperature range for the latent heat of fusion of the PCM, a curve was created between the temperature and the effective specific heat of the paraffin and the specific heat of the composite material to model the phase change process using Farid et al. method and Parsons and Mackin (2017). In addition, the density was
The heat dissipation Q dis between the battery and the environment can be described by Newton''s cooling law, which can be expressed as (17) Q dis = − hS a T amb − T where h represents the convection heat transfer coefficient, S a denotes the battery surface area, and T amb is the ambient temperature.
Effective thermal management of power battery packs is key to ensuring the safe and reliable operation of electric vehicles [7,8,9] recent years, the effective heat dissipation methods for the lithium-ion battery pack mainly
In order to reduce the maximum temperature and improve the temperature uniformity of the battery module, a battery module composed of sixteen 38120-type lithium-ion
This paper delves into the heat dissipation characteristics of lithium-ion battery packs under various parameters of liquid cooling systems, employing a synergistic analysis
In this chapter, battery packs are taken as the research objects. Based on the theory of fluid mechanics and heat transfer, the coupling model of thermal field and flow field of battery packs is established, and the structure of aluminum cooling plate and battery boxes is optimized to solve the heat dissipation problem of lithium-ion battery packs, which provides
Precisely predicting temperature is a crucial challenge for enhancing battery performance and averting thermal runaway. The intricate nonlinear characteristics of heat generation and dissipation in lithium-ion batteries, coupled with susceptibility to external factors, make accurately forecasting battery temperature challenging. In recent years
In this paper, multiple high rate discharge lithium-ion batteries are applied to the rectangular battery pack of container energy storage and the heat dissipation performance of the battery pack is studied numerically. The effects of inlet deflector height, top deflector height, cell spacing and thickness of thermal silica gel on the
In the battery cooling system, early research used a combination of heat pipes and air cooling. The heat pipe coupled with air cooling can improve the insufficient heat dissipation under air cooling conditions [158,159,160,161], which proves that it can achieve a good heat dissipation effect for the power battery. However, the power battery is
In the battery cooling system, early research used a combination of heat pipes and air cooling. The heat pipe coupled with air cooling can improve the insufficient heat dissipation under air cooling conditions
Safe containment and management of appreciable heat effects associated with lithium-ion (Li-ion) batteries in high-power applications remain a challenge before widespread commercialization can occur.
A two-dimensional, transient heat-transfer model for different methods of heat dissipation is used to simulate the temperature distribution in lithium-ion batteries. The experimental and simulation results show that cooling by natural convection is not an effective means for removing heat from the battery system. It is found that forced
Precisely predicting temperature is a crucial challenge for enhancing battery performance and averting thermal runaway. The intricate nonlinear characteristics of heat generation and dissipation in lithium-ion
Lithium‐ion batteries generate considerable amounts of heat under the condition of charging‐discharging cycles. This paper presents quantitative measurements and simulations of heat release.
In this paper, optimization of the heat dissipation structure of lithium-ion battery pack is investigated based on thermodynamic analyses to optimize discharge performance
A two-dimensional, transient heat-transfer model for different methods of heat dissipation is used to simulate the temperature distribution in lithium-ion batteries. The
This paper delves into the heat dissipation characteristics of lithium-ion battery packs under various parameters of liquid cooling systems, employing a synergistic analysis approach. The findings demonstrate that a liquid cooling system with an initial coolant temperature of 15 °C and a flow rate of 2 L/min exhibits superior synergistic
In this paper, optimization of the heat dissipation structure of lithium-ion battery pack is investigated based on thermodynamic analyses to optimize discharge performance and ensure lithium-ion battery pack safety. First, the heat generation and heat transfer model of the lithium-ion battery cell are derived based on thermodynamic theory. Then
The advantages of Lithium-ion batteries can be concluded as specific energy and power, good cycling performance, and environmental friendliness. However, based on the actual operation situation, the operating conditions of energy storage power plants are complex. Existing operating experience has shown that energy storage batteries that are in frequency modulation mode for
UTVC-based battery heat dissipation enables efficient temperature management of batteries without largely reducing their volumetric specific energy (0.47% for U-UTVC and 1.17% for B-UTVC). The presented methods effectively reduce the temperature of the battery tab and improve the temperature uniformity of the battery. (2) The B-UTVC exhibited strong
However, at some floating voltages, the internal heat generation exceeds the heat dissipation and as a consequence, the temperature of the battery increases dramatically and reaches temperatures above 60°C (Figure 1(b)). 1–3 At this stage and under some critical conditions (for example electrolyte saturation) the battery could go into a non–stable state
In this paper, a lithium-ion battery model was established and coupled with the battery''s thermal management system, using a new type of planar heat pipe to dissipate heat of the battery. Compared with ordinary heat pipes, flat
In order to reduce the maximum temperature and improve the temperature uniformity of the battery module, a battery module composed of sixteen 38120-type lithium-ion batteries is directly immersed in mineral oil to investigate the cooling effectiveness under various conditions of battery spacings (1– 5 mm), coolant flow rates (0.05
3 天之前· Using effective specific heat over the melting temperature range for the latent heat of fusion of the PCM, a curve was created between the temperature and the effective specific
In this paper, multiple high rate discharge lithium-ion batteries are applied to the rectangular battery pack of container energy storage and the heat dissipation performance of the battery
First, a detailed estimation method was proposed for heat generation in lithium-ion batteries; specifically, heat generation due to overvoltage inside a battery is calculated using a detailed internal equivalent circuit based
The connection between the heat pipe and the battery wall pays an important role in heat dissipation. Inserting the heat pipe in to an aluminum fin appears to be suitable for reducing the rise in temperature and maintaining a uniform temperature distribution on the surface of the battery. 1. Introduction
Thus, the use of a heat pipe in lithium-ion batteries to improve heat dissipation represents an innovation. A two-dimensional transient thermal model has also been developed to predict the heat dissipation behavior of lithium-ion batteries. Finally, theoretical predictions obtained from this model are compared with experimental values. 2.
Although there have been several studies of the thermal behavior of lead-acid , , , lithium-ion , and lithium-polymer batteries , , , , heat dissipation designs are seldom mentioned.
Additionally, the system should consider aspects such as thermal insulation to mitigate cold temperature effects and the prevention of thermal runaway events, emphasizing the importance of a comprehensive and multifaceted approach in managing the thermal challenges of lithium-ion batteries.
When the width of the flat heat pipe is equal to the width of the single battery, the optimal value can be reached. A new thermal management system combined flat heat pipe and liquid-cooling plate was proposed for the lithium-ion batteries.
The lower the temperature, the smaller the synergistic angle of the fluid field and the more consistent the synergistic effect at different flow rates and coolant temperatures. With an increase in cooling flow rate and a decrease in temperature, the heat exchange between the lithium-ion battery pack and the coolant gradually tends to balance.
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