Identifying Efficient Cooling Approach of Cylindrical Lithium‐Ion Batteries

Ahmad, Taufeeq; Mishra, Ashutosh; Ghosh, Subrata; Casari, Carlo Spartaco

doi:10.1002/ente.202100888

Cited by 9 publications

(6 citation statements)

References 32 publications

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“…This is also how many other works calculate the heat generation rate in a thermal model at the battery module/pack level. [ 6,20,30,31,35,38,54,55 ] It is clearly seen that the temperature measured experimentally fits better with the simulation results when using the state‐dependent parameters. This may be due to the fact that the internal resistance given in the datasheet is most likely measured at room temperature, but the initial and inlet temperature of the coolant is set to 12 °C here.…”

Section: Model Validationmentioning

confidence: 75%

“…[33,34] However, considering that the battery behavior is also largely dependent on temperature and C-rate, the relevant battery physics may be oversimplified through the abovementioned approach. While a few approaches have been employed to account for such effects, [35][36][37] a complete multi-factor-impact, including the joint effects from temperature, SOC, and C-rate, has not been considered in the existing thermal models so far. Therefore, a new equivalent circuit model (ECM) is proposed herein, using several 4D arrays that define the relevant featured parameters.…”

Section: Doi: 101002/ente202101131mentioning

confidence: 99%

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An Integrated Flow–Electric–Thermal Model for a Cylindrical Li‐Ion Battery Module with a Direct Liquid Cooling Strategy

et al. 2022

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Lithium-ion batteries (LiBs) are on their way to becoming a dominating energy storage technology, especially for application in electric vehicles, [1,2] due to their excellent performance in terms of combinations of energy density, power capability, energy efficiency, and cycle life. In recent decades, there have been plenty of investigations, both using experimental measurements [3][4][5] and simulations, [6][7][8][9] aiming to improve the safety, energy, and power of LiBs. This has led to a consensus that the performance of LiBs is largely dependent on their operational temperature, [10][11][12][13][14] explaining the growing interest in thermal control of LiBs, both at the cell and system level and to increased efforts in coupled thermal and electrochemical modeling of cell behavior. [15][16][17][18][19] However, most of the existing coupled thermal and electrochemical models are either built on the single-cell level, which is not applicable in the investigation of the effect of the battery module design. Alternatively, they are built based on the most simply operational air-cooling system. The aim of the present study is, therefore, to establish an integrated model at the battery module level, which can take into account the simultaneous and interdependent thermal behavior of different cells and the effects from relevant multi-physical fields caused by different cooling strategies, incorporating fluid flow and heat transfer across both fluid and solid domains.Since the thermal behavior of the batteries/module is determined by the balance between heat generation and dispassion rate, the first step to building a convincing integrated model is to understand the heat generation within the battery, i.e., to build a precise thermal model. The existing thermal models for LiBs can be classified into lumped-parameter models, [20] electric-thermal models, [6,21] electrochemical-thermal models, [22,23] and thermal runaway models. [24,25] Among these, the electrochemical-thermal model can provide the most detailed information on the battery physics, which makes it possible to extract heat generated from different components, [26] making it favorable from a battery design point of view. For example, Kim et al. discussed the impact of geometry and position of the tabs on the temperature gradient in an operated battery, [27] while Lee et al. [28] found that the heat

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Section: Model Validationmentioning

confidence: 75%

Section: Doi: 101002/ente202101131mentioning

confidence: 99%

An Integrated Flow–Electric–Thermal Model for a Cylindrical Li‐Ion Battery Module with a Direct Liquid Cooling Strategy

et al. 2022

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“…Among several heat dissipation approaches, passive air cooling is the simplest one and widely used in battery cooling systems because of its low cost and compactness, [ 8 ] though its performance is compromised under high‐temperature ambient conditions (>35 °C). [ 9–11 ] Nowadays, most of the commercial high‐power EV's use active BTMS wherein, air‐cooled BTMS is popular for its operational simplicity and cost. However, its energy requirement to achieve same level of cooling is 2–3 times higher compared to that of liquid cooling options.…”

Section: Introductionmentioning

confidence: 99%

Improved Thermal Management of Lithium‐Ion Battery Module through Microtexturing of Serpentine Cooling Channels

Dubey,

Mishra,

Shriyan

et al. 2024

Energy Tech

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Elevated battery temperature and its heterogeneity are responsible for many battery‐related problems such as short lifespan and thermal runaway. For longer life and safe functionality of lithium‐ion battery (LIB), both the average battery temperature and temperature heterogeneity must be controlled. The present work analyzes a modified cooling channel design that can control both the average battery temperature and its heterogeneity. The design adopts microtexturing approach for the heat transfer augmentation of the serpentine cooling channels. First, the transient thermal analysis of different geometry of microtextures, viz., microchannels (MCs) and microdimples (MDs), is carried out on an aluminum slab. The rectangular MCs and square MDs are found to be the most efficient among the other considered microtexture geometries. Further, the modified design is employed for a 19‐cell battery pack to analyze the thermal performance, pressure drop, and coolant pump power requirements. A decrease in maximum temperature difference (MTD) by 6.03 % and 3.72% is observed for 380 MCs (rectangular) and 960 MDs (squared), respectively. While MDs improve the temperature homogeneity within the LIBs, the coolant pump power requirement and pressure drop (by ≈15.42%) are higher for it compared to the MC‐based design for a given MTD.

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“…Despite being designed as per strict safety standards, several cases of fire and explosion of hybrid EVs have been witnessed, prompting the identification of the possible reasons of such incidents. Certainly, the thermal response of batteries is a major cause of failure, which is different for different‐sized batteries 31–33 . It is well known that the battery size is proportional to stored energy, and hence its energy release rate is different.…”

Section: Introductionmentioning

confidence: 99%

“…Certainly, the thermal response of batteries is a major cause of failure, which is different for different-sized batteries. [31][32][33] It is well known that the battery size is proportional to stored energy, and hence its energy release rate is different. Consequently, risk of thermal runaway is more for bigger batteries.…”

mentioning

confidence: 99%

Size‐dependent failure behavior of commercially available lithium‐iron phosphate battery under mechanical abuse

Shukla

Mishra

Sure

et al. 2023

Process Safety Progress

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Under mechanical abuse, the failure of lithium‐ion batteries occurs in various stages, characterized by different force, temperature, and voltage responses, and require in situ measurements for analysis. First, four sizes of commercially available lithium‐iron phosphate batteries (LFPB), namely 18650, 22650, 26650, and 32650, were subjected to quasistatic lateral and longitudinal compression and nail penetration tests. The failure, characterized by the voltage drop and temperature rise at the onset of the first internal short‐circuit (ISC), was identified by an Aurdino‐based voltage sensor module and a temperature measurement module, respectively. The battery failure load and peak temperature at the onset of ISC were found to rely strongly on the battery size. The failure was delayed for small‐sized 18650 batteries during lateral compression, unlike in longitudinal compression and nail penetration tests. At the onset of ISC, the temperature rise above the ambient value was different for different LFPBs. It was found to be maximum (36.4°C) for LFPB 32650 under longitudinal compression and minimum (1.5°C) under lateral compression tests among the considered geometries. Further, LFPB 26650 exhibited a balanced thermal behavior during the test. Such thermal response can be sensed timely for effective thermal management of lithium‐ion batteries.

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Identifying Efficient Cooling Approach of Cylindrical Lithium‐Ion Batteries

Cited by 9 publications

References 32 publications

An Integrated Flow–Electric–Thermal Model for a Cylindrical Li‐Ion Battery Module with a Direct Liquid Cooling Strategy

An Integrated Flow–Electric–Thermal Model for a Cylindrical Li‐Ion Battery Module with a Direct Liquid Cooling Strategy

Improved Thermal Management of Lithium‐Ion Battery Module through Microtexturing of Serpentine Cooling Channels

Size‐dependent failure behavior of commercially available lithium‐iron phosphate battery under mechanical abuse

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