In this study, quasi-static (0.06 mm/s) and low speed (50 mm/s) crush tests were conducted on commercial vehicle Li-ion battery modules to study their response. Two steel impactors,
Customer ServiceIn this study, quasi-static (0.06 mm/s) and low speed (50 mm/s) crush tests were conducted on commercial vehicle Li-ion battery modules to study their response. Two steel impactors, namely, a...
Customer Service本文主要研究不同冲击载荷下圆柱形锂离子电池的动态破碎行为和内部失效机制,以进行安全评估和防护设计。 使用落锤冲击测试系统对典型的 18650 锂离子电池进行了一系列动态实验。 在
Customer ServiceIn this paper, the stress wave theory is employed to analyze the dynamic behaviors of 18,650 lithium-ion batteries for the first time. A numerical model of the battery cell is established and validated by experiments, which is then used to study the dynamic response under crushing within a wide scope of crushing velocity (up to 45 m/s).
Customer ServiceIn this study, quasi-static (0.06 mm/s) and low speed (50 mm/s) crush tests were conducted on commercial vehicle Li-ion battery modules to study their response. Two steel impactors, namely, a 60 wedge and a hemispherical end punch were used to investigate the force-displacement-voltage responses of the modules. Based on the test data, the
Customer Service2 Lithium battery crush. The existing research objects mainly include square shell lithium iron phosphate batteries and 18650 cylindrical lithium batteries. There are two main research methods: experimental research and simulated straight research. In experimental research, there are three main mechanical loading methods for cylindrical lithium batteries:
Customer ServiceFrom the experimental comparison of different crush speeds, it can be seen that in the evaluation of fire safety of lithium-ion batteries, the crush speed should be set to ≥ 200 mm/min in order to better observe the differences between different lithium-ion batteries. At the same time, the temperature changes on the surface of lithium-ion batteries can serve as an
Customer ServiceTo gain a better understanding of the LIB mechanical behavior as a whole, pioneering research have been conducted to experimentally examine the material properties of each constituent of
Customer ServiceIn this study, quasi-static (0.06 mm/s) and low speed (50 mm/s) crush tests were conducted on commercial vehicle Li-ion battery modules to study their response. Two steel impactors, namely, a 60° wedge and a hemispherical end punch were used to investigate the force-displacement-voltage responses of the modules. Based on the test data, the
Customer Service(DOI: 10.1115/1.4056885) To understand the dynamic failure mechanisms of cylindrical lithium-ion battery (LIB) under different impact loadings, the crushing behaviors of the 18650 LIBs were experimentally investigated in this work. The drop weight impact tests with different impactor heads were conducted to analyze the crushing responses of the LIBs. By
Customer ServiceThe mechanical property and failure prediction play a significant role in engineering applications of lithium-ion batteries (LIBs), but with great difficulties due to their complicated internal structures. This paper mainly focused on dynamic crushing behaviors and internal failure mechanisms of cylindrical LIBs subjected to
Customer ServiceTo understand the dynamic failure mechanisms of cylindrical lithium-ion battery (LIB) under different impact loadings, the crushing behaviors of the 18650 LIBs were experimentally investigated in this work. The drop weight impact tests with different impactor heads were conducted to analyze the crushing responses of the LIBs. By changing the state of charge
Customer ServiceDynamic mechanical integrity of cylindrical lithium-ion battery cell upon crushing Jun Xu⇑, Binghe Liu, Lubing Wang, Shi Shang Department of Automotive Engineering, School of Transportation
Customer ServiceIn this study, quasi-static (0.06 mm/s) and low speed (50 mm/s) crush tests were conducted on commercial vehicle Li-ion battery modules to study their response. Two steel
Customer Service本文主要研究不同冲击载荷下圆柱形锂离子电池的动态破碎行为和内部失效机制,以进行安全评估和防护设计。 使用落锤冲击测试系统对典型的 18650 锂离子电池进行了一系列动态实验。 在不同冲击器类型下,对具有荷电状态（SOC）依赖性的电池的力-电-热响应和冲击失效模式进行了实验探索。 还建立了有限元（FE）模型来揭示电池在高速冲击下的失效机制,并通过实验与相应
Customer ServiceThe crush results under different deformation variables indicate that the crush experimental deformation variable for evaluating the fire safety of lithium ion batteries should be set to ≥ 30%. 2.2 Impact of crush speed . Set the shape variable to 30%. The temperature of the positive electrode surface of each battery varies with time at different crush rates. The surface
Customer ServiceTo understand the dynamic failure mechanisms of cylindrical lithium-ion battery (LIB) under different impact loadings, the crushing behaviors of 18650 LIBs were experimentally investigated in this
Customer ServiceTo gain a better understanding of the LIB mechanical behavior as a whole, pioneering research have been conducted to experimentally examine the material properties of each constituent of LIB under...
Customer ServiceThe mechanical property and failure prediction play a significant role in engineering applications of lithium-ion batteries (LIBs), but with great difficulties due to their
Customer ServiceTo understand the dynamic failure mechanisms of cylindrical lithium-ion battery (LIB) under different impact loadings, the crushing behaviors of 18650 LIBs were
Customer ServiceAbstract To understand the dynamic failure mechanisms of cylindrical lithium-ion battery (LIB) under different impact loadings, the crushing behaviors of 18650 LIBs were experimentally investigated in this work. The drop weight impact tests with different impactor heads were conducted to analyze the crushing responses of the LIBs. By changing the state of
Customer ServiceTo understand the dynamic failure mechanisms of cylindrical lithium-ion battery (LIB) under different impact loadings, the crushing behaviors of 18650 LIBs were experimentally investigated in this work. The drop weight impact tests with different impactor heads were conducted to analyze the crushing responses of the LIBs. By changing
Customer ServiceInvestigations on the crushing behaviour of the single components (anode-, cathode- and separator foils as well as housing materials) and entire Li-ion battery cells were done. Measured specific mechanical stress energies for the crushing of complete battery cells are compared to calculated ones.
Customer ServiceIn this paper, the stress wave theory is employed to analyze the dynamic behaviors of 18,650 lithium-ion batteries for the first time. A numerical model of the battery cell
Customer ServiceEfficient separation of small-particle-size mixed electrode materials, which are crushed products obtained from the entire lithium iron phosphate battery, has always been challenging. Thus, a new method for recovering lithium iron phosphate battery electrode materials by heat treatment, ball milling, and foam flotation was proposed in this study. The difference in
Customer ServiceIn this study, quasi-static (0.06 mm/s) and low speed (50 mm/s) crush tests were conducted on commercial vehicle Li-ion battery modules to study their response. Two steel impactors, namely, a 60° wedge and a hemispherical end punch were used to investigate the force-displacement-voltage responses of the modules. Based on the test data, the
Customer ServiceLithium-ion (Li-ion) battery systems are used for electric vehicles (EV) in the automotive industry due to their lightweight and high energy density. The battery modules are composite structures with significant geometry and material non-linearity. Their behaviour under mechanical loading is important for EV performance and crashworthiness
Customer ServiceIn this study, quasi-static (0.06 mm/s) and low speed (50 mm/s) crush tests were conducted on commercial vehicle Li-ion battery modules to study their response. Two steel impactors, namely, a 60° wedge and a hemispherical end punch were used to investigate the force-displacement-voltage responses of the modules.
In this paper, the stress wave theory is employed to analyze the dynamic behaviors of 18,650 lithium-ion batteries for the first time. A numerical model of the battery cell is established and validated by experiments, which is then used to study the dynamic response under crushing within a wide scope of crushing velocity (up to 45 m/s).
In the first stage, the cell shell will deform at first elastically and then plastically. In the second stage, the jellyroll of the battery is crushed. Due to the gaps of the jellyroll or between different structures, the battery is continuously compacted during the crushing. The force will enhance with the increase of stiffness.
Investigations on the crushing behaviour of the single components (anode-, cathode- and separator foils as well as housing materials) and entire Li-ion battery cells were done. Measured specific mechanical stress energies for the crushing of complete battery cells are compared to calculated ones.
Further, by considering the strain rate and inertia effect of the battery structural and material, the dynamic mechanical behavior of lithium-ion battery is inves-tigated. Different mechanical failure behaviors are obtained through the combination of numerical simulation and the suggested battery mechanical integrity criteria.
When the battery fails, the force under hemispherical head is less than that under the flat-end one. Due to the crushing of different impactors, the battery surface and cross section have different internal failure modes, which leads to various mechanical responses of a LIB.
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