Mechanical methods for state determination of Lithium-Ion secondary batteries: A review

Popp, Hartmut; Koller, Markus; Jahn, Marcus; Bergmann, Alexander

doi:10.1016/j.est.2020.101859

Cited by 77 publications

(55 citation statements)

References 122 publications

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“…It can also support the early detection of safety critical events [339][340][341][342]. The general methods that are used for monitoring mechanical effects in individual Li-ion cells are summarized in two recent reviews [343,344].…”

Section: Mechanical and Volumetric Change Detectionmentioning

confidence: 99%

“…In real applications, the volume changes are impeded by mechanical constraints, such as cell and module housing, inducing strain within the cells [343]. Few studies suggest the combination of thermal and strain sensors to simultaneously monitor the temperature and the mechanical changes within the cell during operation for improved and efficient assessment.…”

Section: Mechanical and Volumetric Change Detectionmentioning

confidence: 99%

“…The mechanical and temperature changes during operation can be precisely monitored in this position. More comprehensive information on the application of FBGs are found in recently published reviews [134,343].…”

Section: Mechanical and Volumetric Change Detectionmentioning

confidence: 99%

“…In recent years, ultrasonic probing is gaining popularity as a non-invasive technique for characterization of commercial Li-ion cells. In ultrasonic measurements, an actuator emits a wave which propagates through the medium and a sensor measures the system's response to the excitation [343]. The measurements can be performed in reflection, throughplane, or in-plane modes, depending on the position of emitter and receiver.…”

Section: Mechanical and Volumetric Change Detectionmentioning

confidence: 99%

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Critical Review of Intelligent Battery Systems: Challenges, Implementation, and Potential for Electric Vehicles

et al. 2021

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This review provides an overview of new strategies to address the current challenges of automotive battery systems: Intelligent Battery Systems. They have the potential to make battery systems more performant and future-proof for coming generations of electric vehicles. The essential features of Intelligent Battery Systems are the accurate and robust determination of cell individual states and the ability to control the current of each cell by reconfiguration. They enable high-level functions like fault diagnostics, multi-objective balancing strategies, multilevel inverters, and hybrid energy storage systems. State of the art and recent advances in these topics are compiled and critically discussed in this article. A comprising, critical discussion of the implementation aspects of Intelligent Battery Systems complements the review. We touch on sensing, battery topologies and management, switching elements, communication architecture, and impact on the single-cell. This review contributes to transferring the best technologies from research to product development.

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Section: Mechanical and Volumetric Change Detectionmentioning

confidence: 99%

Section: Mechanical and Volumetric Change Detectionmentioning

confidence: 99%

Section: Mechanical and Volumetric Change Detectionmentioning

confidence: 99%

Section: Mechanical and Volumetric Change Detectionmentioning

confidence: 99%

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Critical Review of Intelligent Battery Systems: Challenges, Implementation, and Potential for Electric Vehicles

et al. 2021

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“…A couple of reviews presented the state-of-art of deformation measurements in LIB [11,12], deepening in situ techniques, such as Bragg optical fibre, digital image correlation (DIC) and curvature measurements.…”

Section: Introductionmentioning

confidence: 99%

Experimental Characterization of Lithium-Ion Cell Strain Using Laser Sensors

Clerici¹,

Mocera²,

Somà³

2021

Energies

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The characterization of thickness change during operation of LFP/Graphite prismatic batteries is presented in this work. In this regard, current rate dependence, hysteresis behaviour between charge and discharge and correlation with phase changes are deepened. Experimental tests are carried out with a battery testing equipment correlated with optical laser sensors to evaluate swelling. Furthermore, thickness change is computed analytically with a mathematical model based on lattice parameters of the crystal structures of active materials. The results of the model are validated with experimental data. Thickness change is able to capture variations of the internal structure of the battery, referred to as phase change, characteristic of a certain state of charge. Furthermore, phase change shift is a characteristic of battery ageing. Being able to capture these properties with sensors mounted on the external surface the cell is a key feature for improving state of charge and state of health estimation in battery management system.

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Densification of Alloying Anodes for High Energy Lithium‐Ion Batteries: Critical Perspective on Inter‐ Versus Intra‐Particle Porosity

Luo,

Chen,

Koratkar

et al. 2024

Advanced Science

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High Li‐storage‐capacity particles such as alloying‐based anodes (Si, Sn, Ge, etc.) are core components for next‐generation Li‐ion batteries (LIBs) but are crippled by their intrinsic volume expansion issues. While pore pre‐plantation represents a mainstream solution, seldom do this strategy fully satisfy the requirements in practical LIBs. One prominent issue is that porous particles reduce electrode density and negate volumetric performance (Wh L−1) despite aggressive electrode densification strategies. Moreover, the additional liquid electrolyte dosage resulting from porosity increase is rarely noticed, which has a significant negative impact on cell gravimetric energy density (Wh kg−1). Here, the concept of judicious porosity control is introduced to recalibrate existing particle design principles in order to concurrently boost gravimetric and volumetric performance, while also maintaining the battery's cycle life. The critical is emphasized but often neglected role that intraparticle pores play in dictating battery performance, and also highlight the superiority of closed pores over the open pores that are more commonly referred to in the literature. While the analysis and case studies focus on silicon‐carbon composites, the overall conclusions apply to the broad class of alloying anode chemistries.

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Mechanical methods for state determination of Lithium-Ion secondary batteries: A review

Cited by 77 publications

References 122 publications

Critical Review of Intelligent Battery Systems: Challenges, Implementation, and Potential for Electric Vehicles

Critical Review of Intelligent Battery Systems: Challenges, Implementation, and Potential for Electric Vehicles

Experimental Characterization of Lithium-Ion Cell Strain Using Laser Sensors

Densification of Alloying Anodes for High Energy Lithium‐Ion Batteries: Critical Perspective on Inter‐ Versus Intra‐Particle Porosity

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