Simulated coolant distributions in the pack. Thermal behavior of the battery cells was analyzed using the battery cooling model developed at AVL [8,9]. This model characterizes the electro-thermal behavior of a battery system with 3D finite element analysis (FEA) using ABAQUS .
Thus, a liquid cooling system for the battery pack is generally integrated with the AC system of the vehicle through a refrigerant cooled chiller to deal with the cases when the coolant radiator is not capable of bring the coolant temperature down to the required pack inlet temperature . Figure 3.
The battery temperatures are managed with a direct liquid cooling system for the 96S1P pack and with an indirect liquid cooling system for the 96S2P pack. Procedures are discussed for the cooling system design for both direct liquid cooling and indirect liquid cooling packs.
In the paper “Optimization of liquid cooling and heat dissipation system of lithium-ion battery packs of automobile” authored by Huanwei Xu, it is demonstrated that different pipe designs can improve the effectiveness of liquid cooling in battery packs. The paper conducts a comparative analysis between the serpentine model and the U-shaped model.
This indicates that direct liquid cooling is more efficient than indirect cooling under the same total coolant flow for the pack. If the criteria for the battery cooling system design are set as Tcell,max ≤ 55 °C and ΔTcell,max < 8 °C, then the cooling systems for both packs meet the design criteria.
The first pack is assembled with 96 70Ah high-power Li-ion pouch cells in 96S1P configuration. The second pack is assembled with 192 35Ah high-power Li-ion pouch cells in 96S2P configuration. The battery temperatures are managed with a direct liquid cooling system for the 96S1P pack and with an indirect liquid cooling system for the 96S2P pack.
Except for the cooling strategies on the whole battery system level, there are other cooling methods aiming at specific hotspots of the battery cells such as electrode tabs …
In addition, the implementation of an Air-Cooling System model enables simulation of the air-mass flow between the battery cells as well as electro-thermal interaction …
The proposed cooling system showcases the advantages of employing a thermal cooling system for electric vehicle battery packs, significantly outperforming the …
The study will optimize cooling system parameters, evaluate performance based on key metrics, address safety considerations such as preventing thermal runaway and …
In this paper, a Swiss roll-type cooling belt is used to improve the thermal performance of lithium-ion battery packs. This paper selects six key parameters as optimization parameters, including …
Improvement in cooling performance could sacrifice the simplicity and the battery pack energy density; (2) liquid cooling method performs better than air, but it needs a …
Procedures are discussed for the cooling system design for both direct liquid cooling and indirect liquid cooling packs. A design criterion is proposed for obtaining a uniform …
The temperature distributions of the battery module and the battery thermal management systems (a) battery module without cooling, (b) BTMS with PCM, (c) liquid …
Based on the innovative development of cloud-controlling platform design and electronic and electrical architecture, the cloud battery controlling provides the chances for online elaborate model-based operation …
Direct contact cooling systems, where the refrigerant is in direct contact with the surface of the battery, have attracted wide attention because of their excellent temperature control …
There are many voltage-measuring channels in EV battery packs due to the enormous number of cells in series. ... Air Cooling: Uses fans or blowers to direct airflow over …
The focus of the LCS research has been on LCP cooling systems and direct cooling systems using coolant [100, 101]. The coolant direct cooling system uses the LCP as …
A decoupling control strategy for a direct cooling battery thermal management system was proposed. The strategy reacted to system cooling load changes and ensures the …
Therefore, choosing an efficient cooling method for the battery packs in electric vehicles is vital. Additionally, for improved performance, minimal maintenance costs, and greater safety, the …
An efficient battery pack-level thermal management system was crucial to ensuring the safe driving of electric vehicles. To address the challenges posed by insufficient …
The structure of a 50 V Li-ion battery of (a) direct cooling system, (b) conventional cold plate, and (c) direct contact cooling system. As shown in Fig. 10 (a), the lowest temperature of the …
Different cooling methods have different limitations and merits. Air cooling is the simplest approach. Forced-air cooling can mitigate temperature rise, but during aggressive …
For the purpose of improving the working efficiency of lithium-ion batteries for electric vehicles (EVs), prevent battery catching fire and improve the economy of battery …
discussed for the cooling system design for both direct liquid cooling and indirect liquid cooling packs. A design criterion is proposed for obtaining a uniform coolant flow …
Effective cooling systems play a key role in the battery packs service life. This thesis compares two indirect liquid-cooled cooling configurations and optimises the cooling system in terms of …