نتایج جستجو برای: lithium ion battery lib
تعداد نتایج: 279060 فیلتر نتایج به سال:
With the mass market penetration of electric vehicles, the Greenhouse Gas (GHG) emissions associated with lithium-ion battery production has become a major concern. In this study, by establishing a life cycle assessment framework, GHG emissions from the production of lithium-ion batteries in China are estimated. The results show that for the three types of most commonly used lithium-ion batteri...
The initial lithium loss during the formation stage is a critical issue that significantly reduces the specific capacity and energy density of current rechargeable lithium-ion batteries (LIBs). An effective strategy to solve this problem is using electrode prelithiation additives that can work as a secondary lithium source and compensate the initial lithium loss. Herein we show that nanocomposi...
X-ray computed tomography (CT) is an important tool for studying battery electrode microstructures but relies on robust segmentation validity. Here, several approaches to applying accessible machine-learning software segment open-source lithium-ion (LIB) tomograms are followed identify the optimised methodology that minimises variation in active material volume fraction quantification across th...
The optimal profile of charging current for a lithium-ion battery is estimated using dynamic optimization implemented via control vector parameterization (CVP). An efficient reformulated model is used for simulating the system behavior of the Li-ion battery. Dynamic optimization is made possible due to the computationally inexpensive reformulated model. It is found that, if the battery is charg...
The performance of lithium ion battery (LIB) is limited by the inner polarization and it is important to understand the factors that affect the polarization. This study focuses on the polarization analysis based on realistic 3D electrode microstructures. A c++ software was developed to rebuild and mesh the microstructure of cathode and anode electrodes through Nano-CT and Micro-CT scanned image...
In this work, a dynamic testing platform to analyze lithium-ion battery (LIB) performance degradation and safety during in-service vibration impacts is presented. The LIBs are cycled until end of life (EOL) under various conditions, providing in-operando examination. A sensor network constructed consisting resistance temperature detector (RTD), an accelerometer, eddy current shunt resistor inco...
Resource depletion aspects are repeatedly used as an argument for a shift towards new battery technologies. However, whether serious shortages due to the increased demand for traction and stationary batteries can actually be expected is subject to an ongoing discussion. In order to identify the principal drivers of resource depletion for battery production, we assess different lithium-ion batte...
The lithium-ion battery (LIB) is widely used as an energy storage device for electric vehicles (EV) due to its advantages, such high density and long lifespan. However, LIB EV can be exposed mechanical abuse vehicle collision, which causes thermal runaway extreme deformation. Therefore, it necessary predict the internal short circuit (ISC) of cell under loading conditions analyze mechanical, el...
Multi-Scale Parameter Identification of Lithium-Ion Battery Electric Models Using a PSO-LM Algorithm
This paper proposes a multi-scale parameter identification algorithm for the lithium-ion battery (LIB) electric model by using a combination of particle swarm optimization (PSO) and Levenberg-Marquardt (LM) algorithms. Two-dimensional Poisson equations with unknown parameters are used to describe the potential and current density distribution (PDD) of the positive and negative electrodes in the...
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