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A simultaneously coupled modeling approach to study the electrochemical and thermal behavior of lithium-ion batteries under large mechanical deformation has been developed. The thermo-electrochemical pseudo-2D (P2D) battery model is coupled with a mechanical material model.
Deformation and failure of Li-ion batteries can be accurately described by a detailed FE model. The DPC plasticity model well characterizes the granular coatings of the anode and the cathode. Fracture of Li-ion batteries is preceded by strain localization, as indicated by simulation.
Safety of lithium-ion batteries under mechanical loadings is currently one of the most challenging and urgent issues facing in the Electric Vehicle (EV) industry. The architecture of all types of large-format automotive batteries is an assembly of alternating layers of anode, separator, and cathode.
This study thoroughly explores the mechanical behavior due to damage of lithium-ion battery (LIB) cells, focusing on Lithium Nickel Manganese Cobalt Oxide (NMC) and Lithium Iron Phosphate (LFP) types during both quasi-static indentation and dynamic high-velocity penetration tests.
Fracture initiates from aluminum foil and ends up with separator as the cause of short circuit. Safety of lithium-ion batteries under mechanical loadings is currently one of the most challenging and urgent issues facing in the Electric Vehicle (EV) industry.
This is a clear candidate for the future research. We believe that the present detailed computational model will be found useful in the design process of the new generation of batteries and at the same time, will prove to be an important new computational tool for assessing the safety of lithium-ion batteries against mechanical loading.
Volume deformation of a lithium ion battery may be caused by lithium intercalation and de-intercalation during cycling, 10 thermal deformation, 11 irreversible deformation of the anode or cathode, 12,13 ... The calculation …
The risk of mechanical failure and thermal runaway of lithium-ion battery packs in electric vehicles (EVs) subjected to crash loading, imposes severe restrictions on the design of …
Abstract. Models that can accurately describe deformation and stress in lithium-ion batteries are required to inform new device designs that can better withstand mechanical …
Safety of lithium-ion batteries under mechanical loadings is currently one of the most challenging and urgent issues facing in the Electric Vehicle (EV) industry. The …
The results show that the deformation rate for 18650-size prismatic cells is much lower than for soft-case lithium polymer batteries. As a result, it is advised to identify the …
The results show that the deformation rate for 18650-size prismatic cells is much lower than for soft-case lithium polymer batteries. As a result, it is advised to identify the distinct outliers for the 18650 size and …
Volume deformation of lithium-ion batteries is inevitable during operation, affecting battery cycle life, and even safety performance. Accurate prediction of volume …
A simultaneously coupled modeling approach to study the electrochemical and thermal behavior of lithium-ion batteries under large mechanical deformation has been …
In this study, we present a comprehensive homogenous material model for the lithium-ion batteries, including the plasticity, damage and fracture, anisotropy, strain rate and …
In this study, we present a comprehensive homogenous material model for the lithium-ion batteries, including the plasticity, damage and fracture, anisotropy, strain rate and state-of-charge dependences.
Deformations in lithium-ion batteries, which may lead to thermal runaway, can occur during storage and transportation handling, as well as in road use. In this study, both …
The growing number of electric vehicles and devices drives the demand for lithium-ion batteries. The purpose of the batteries used in electric vehicles and applications is …
Due to its high theoretical capacity and low anode potential advantages, lithium is becoming the ideal high-capacity anode of next generation batteries. Nevertheless, the …
Fig. 9 (d) further exhibits the displacement map of the battery at 900 s, 1800 s, 2700 s, and 3600 s, each subgraph contains a zy plane and a three-dimensional displacement …
As lithium-ion batteries are widely used in the industry represented by electric vehicles, their collision-induced safety problems have aroused widespread concern in the …
Safety of lithium-ion batteries under mechanical loadings is currently one of the most challenging and urgent issues facing in the Electric Vehicle (EV) industry. The architecture of all types of …
These included a lithium polymer (soft casing), 18650 standard sizes (hard casing), and prismatic cells (semi-hard). The study also included testing each battery at various charge states...
These included a lithium polymer (soft casing), 18650 standard sizes (hard casing), and prismatic cells (semi-hard). The study also included testing each battery at …
Understanding mechanisms of deformation of battery cell components is important in order to improve the mechanical safety of lithium-ion batteries. In this study, micro …
Separator integrity is an important factor in preventing internal short circuit in lithium-ion batteries. Local penetration tests (nail or conical punch) often produce presumably …
The risk of mechanical failure and thermal runaway of lithium-ion battery packs in electric vehicles (EVs) subjected to crash loading, imposes severe restrictions on the design of …
Electric vehicle battery systems are easily deformed following bottom or side pillar collisions. There is a knowledge gap regarding the fault features of minor mechanical …