Mechanism of inhomogeneous deformation and equal-stiffness design of large-format prismatic lithium-ion batteries

Chen, Haosen; Fan, Jinbao; Zhang, Mingliang; Feng, Xiaolong; Zhong, Ximing; He, Jie; Ai, Shigang

doi:10.1016/j.apenergy.2022.120494

Cited by 11 publications

(6 citation statements)

References 62 publications

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“…To enhance the energy density of LIBs, thick electrodes are required and chemomechanics thus plays an important role. Furthermore, batteries are assembled into many layers of electrodes at the cell-level, leading to a significant build-up of in-homogeneous deformation due to heterogeneous phenomena at the aforementioned particle and electrode levels [22]. Failure of the batteries at the cell-level can be detrimental and extremely hazardous, where the safe use at the end application is concerned, such as an electric vehicle.…”

Section: Detailed Insight Into the Role Of Mechanics And How It Is Mo...mentioning

confidence: 99%

The role of chemo-mechanical modelling in the development of battery technology—a perspective

Boyce,

Martínez-Pañeda,

Shearing

2024

J. Phys. Energy

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In the race to reduce global CO2 emissions and achieve net-zero, chemomechanics must play a critical role in the technological development of current and next-generation batteries to improve their energy storage capabilities and their lifetime. Many degradation processes arise through mechanics via the development of diffusion-induced stress and volumetric strains within the various constituent materials in a battery. From particle cracking in lithium-ion batteries to lithium dendrite-based fracture of solid electrolytes in solid-state batteries, it is clear that significant barriers exist in the development of these energy storage systems, where chemomechanics plays a central part. To accelerate technological and scientific advances in this area, multi-scale and highly coupled multiphysics modelling must be carried out that includes mechanics-based phenomena. In this perspective article, we provide an introduction to chemomechanical modelling, the various physical problems that it addresses, and the issues that need to be resolved in order to expand its use within the field of battery technology.

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Section: Detailed Insight Into the Role Of Mechanics And How It Is Mo...mentioning

confidence: 99%

The role of chemo-mechanical modelling in the development of battery technology—a perspective

Boyce,

Martínez-Pañeda,

Shearing

2024

J. Phys. Energy

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“…In the design of battery system engineering, it is necessary to synchronously analyze non‐uniform electrochemical reactions, temperature, and shell constraints. [ 177 ]…”

Section: The Application Of Different Sensors In Lithium Batteriesmentioning

confidence: 99%

Deciphering Advanced Sensors for Life and Safety Monitoring of Lithium Batteries

Wang,

Zhang,

Xie

et al. 2024

Advanced Energy Materials

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The rapid commercialization of lithium batteries greatly promotes the development of the electric vehicles, renewable energy storage systems and consumer electronics. The service lifetime and safety of lithium batteries are extremely concerned by terminal customers. Sensor technology is powerful in monitoring the physical and chemical signals of lithium batteries, serving for the state of health and safety warning/evaluation of lithium batteries and guide for future development of battery materials. In this review, the primary concern is the generation mechanisms of different physicochemical signals in lithium batteries. Then, the sensing methods and sensing designs according to different physicochemical signals of lithium batteries is summarized. Finally, some perspectives are provided to guide further development of sensing technology for lithium batteries. This review will greatly accelerate the terminal application of advanced sensors, whether in commercial products or scientific research.

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“…The study presented in [196] investigated the deformation behavior of a 100 Ah prismatic cell and found that the deformation over the battery is inhomogeneous. The main reasons for this were local differences in the SOC, temperature variations, and variations in stiffness between the central and peripheral areas of the battery.…”

Section: Degradation Of Large-format Libsmentioning

confidence: 99%

“…Due to differences in the SOC, a battery module imbalance can result in an unequal distribution of current levels among the cells. Cells that are not in synchrony with one another could experience deep discharges or operational overloads as a result of this less-than-ideal current distribution [196]. To minimize this problem, the batteries are equipped with an energy management circuit that seeks to maintain the charge state of the cells uniformly.…”

Section: Main Findingsmentioning

confidence: 99%

“…This reduction is accompanied by the loss of active material from the electrodes, leading to a decrease in the capacity and energy of the battery electrodes. Reducing the number of locations available for lithium intercalation results in the loss of active material from the electrodes and decreases the capacity and energy in the battery electrodes [158,196,197].…”

Section: Main Findingsmentioning

confidence: 99%

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A Comprehensive Review of EV Lithium-Ion Battery Degradation

Rufino Júnior,

Sanseverino,

Gallo

et al. 2023

Preprint

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Lithium-ion batteries with improved energy densities have made understanding the Solid Electrolyte Interphase (SEI) generation mechanisms that cause mechanical, thermal, and chemical failures more complicated. SEI processes reduce battery capacity and power. Thus, a review of this area's understanding is important. It is essential to know how batteries degrade in EVs to estimate battery lifespan as it goes, predict, and minimize losses, and determine the ideal time for a replacement. Lithium-ion batteries used in EVs mainly suffer two types of degradation: calendar degradation and cycling degradation. Despite the existence of several existing works in the literature, several aspects of battery degradation remain unclear or have not been analyzed in detail. This work presents a systematic review of existing works in the literature. The results of the present investigation provide insight into the complex relationships among various factors affecting battery degradation mechanisms. Specifically, this systematic review examined the effects of time, side reactions, temperature fluctuations, high charge/discharge rates, depth of discharge, mechanical stress, thermal stress, and the voltage relationship on battery performance and longevity. The results revealed that these factors interact in complex ways to influence the degradation mechanisms of batteries. For example, high charge currents and deep discharges were found to accelerate degradation, while low temperatures and moderate discharge depths were shown to be beneficial for battery longevity. Additionally, the results showed that the relationship between cell voltage and State-of-Charge (SOC) plays a critical role in determining the rate of degradation. Overall, these findings have important implications for the design and operation of battery systems, as they highlight the need to carefully manage a range of factors to maximize battery performance and longevity. The result is an analysis of the main articles published in this field in recent years. This work aims to present new knowledge about fault detection, diagnosis, and management of lithium-ion batteries based on battery degradation concepts. The new knowledge is presented and discussed in a structured and comprehensive way.

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Mechanism of inhomogeneous deformation and equal-stiffness design of large-format prismatic lithium-ion batteries

Cited by 11 publications

References 62 publications

The role of chemo-mechanical modelling in the development of battery technology—a perspective

The role of chemo-mechanical modelling in the development of battery technology—a perspective

Deciphering Advanced Sensors for Life and Safety Monitoring of Lithium Batteries

A Comprehensive Review of EV Lithium-Ion Battery Degradation

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