Not only are lithium-ion batteries widely used for consumer electronics and electric vehicles, but they also account for over 80% of the more than 190 gigawatt-hours (GWh) of battery energy storage deployed globally through 2023. However, energy storage for a 100% renewable grid brings in many new challenges that cannot be met by existing battery technologies alone.
Although there have been many studies on state estimation of lithium-ion batteries (LIBs), aging and temperature variation are seldom considered in peak power prediction during the whole life of the battery.
To fill this gap, this paper aims to propose an adaptive peak power prediction method for power lithium-ion batteries considering temperature and aging is proposed.
In order to accurately predict the power of lithium-ion batteries online, this study uses the VFF-RLS algorithm and EKF algorithm to jointly estimate the parameters and SOC of the battery. Based on the results of parameter identification and SOC estimation, the battery power prediction under multiple constraint conditions is carried out.
When the SOC of the battery is 70%, the predicted peak current is 117.4 A, with a relative error of 4.5%; When the SOC of the battery is 50%, the predicted peak current is 101.6 A, with a relative error of 8.1%; When the SOC of the battery is 20%, the predicted peak current is 40.34 A, with a relative error of 5.0%.
The peak power obtained by the most commonly used map method is more affected by SOC accuracy, temperature and aging, and the power in the table is measured after the battery is sufficiently static, and the actual polarization state is not considered.
An outlook on lithium ion battery technology is presented by providing the current status, the progress and challenges with ongoing approaches, and practically viable near-term strategies. Lithium ion batteries have aided the revolution in microelectronics and have become the choice of power source for portable electronic devices.
Not only are lithium-ion batteries widely used for consumer electronics and electric vehicles, but they also account for over 80% of the more than 190 gigawatt-hours (GWh) of battery energy storage deployed globally through 2023. However, energy storage for a 100% renewable grid brings in many new challenges that cannot be met by existing battery technologies alone.
Get PriceAs a crucial indicator of lithium-ion battery performance, state of power (SOP) characterizes the peak power capability that can be delivered or absorbed within a short period of time. Accurate SOP estimation is therefore essential for electric vehicles to ensure their safe …
Get PriceTo address the issue, this paper mainly investigates four different peak current solution algorithms, including bisection method, genetic algorithm method, particle swarm optimization method, and grey wolf optimizer (GWO) method for …
Get PriceThe ever-growing demand for advanced rechargeable lithium-ion batteries in portable electronics and elec. vehicles has spurred intensive research efforts over the past decade. The key to sustaining the progress in Li-ion batteries lies in the quest for safe, low-cost pos. electrode (cathode) materials with desirable energy and power ...
Get PriceLithium-ion battery efficiency is crucial, defined by energy output/input ratio. NCA battery efficiency degradation is studied; a linear model is proposed. Factors affecting …
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Get PriceThe transition will require lots of batteries—and better and cheaper ones. Most EVs today are powered by lithium-ion batteries, a decades-old technology that''s also used in laptops and cell ...
Get PriceLithium-ion battery efficiency is crucial, defined by energy output/input ratio. NCA battery efficiency degradation is studied; a linear model is proposed. Factors affecting energy efficiency studied including temperature, current, and voltage. The very slight memory effect on energy efficiency can be exploited in BESS design.
Get PriceAbstract: The peak power capability of lithium-ion batteries (LIBs), or so-called state of power (SOP), plays a decisive role for electric vehicles to fulfill a specific power-intensive task. Generally, battery SOP can be achieved based on different peak operation modes (POMs), including constant current, constant voltage, constant current and ...
Get PriceIn this thread, this paper provides an overview of the recently progresses in the peak power test benchmark methods of the Li-ion battery from both academic and industrial fields, and …
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Get PriceThe recent strong progress in the development of lithium-ion batteries (LIB) can be associated to both the progress in the engineering of the battery pack, and the progress of active materials for the cathode. From the system perspective, only a fraction of the overall improvement is due to better chemistries. Even larger contributions are expected from new cell …
Get PriceConsidering the heat transfer from electrochemical reactions and joule heating to the air and consequently a corresponding rise of battery temperature, a model is established in …
Get PriceIn this thread, this paper provides an overview of the recently progresses in the peak power test benchmark methods of the Li-ion battery from both academic and industrial fields, and summarizes the main pros and cons of each method. The discussion and analysis in this work could provide a reference for the selection of a suitable test method ...
Get PriceAbstract: The peak power capability of lithium-ion batteries (LIBs), or so-called state of power (SOP), plays a decisive role for electric vehicles to fulfill a specific power …
Get PriceAs a crucial indicator of lithium-ion battery performance, state of power (SOP) characterizes the peak power capability that can be delivered or absorbed within a short period of time. Accurate SOP estimation is therefore essential for electric vehicles to ensure their safe and efficient operations during power-intensive driving tasks. This ...
Get PriceIn this paper, the maximum charging or discharging current that the lithium-ion battery can withstand within safe voltage constraints, i.e., the peak current is researched. The equivalent …
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Get PriceThe ever-growing demand for advanced rechargeable lithium-ion batteries in portable electronics and elec. vehicles has spurred intensive research efforts over the past decade. The key to sustaining the progress in Li-ion …
Get PriceIn this paper, the maximum charging or discharging current that the lithium-ion battery can withstand within safe voltage constraints, i.e., the peak current is researched. The equivalent circuit model is employed to describe battery dynamic.
Get PriceMost battery-powered devices, from smartphones and tablets to electric vehicles and energy storage systems, rely on lithium-ion battery technology. Because lithium-ion batteries are able to store a significant …
Get PriceSOP describes the maximum power that lithium-ion batteries can release or absorb over a period of time, which can be used to determine whether the power battery can meet the power requirements of electric vehicles during acceleration and climbing, or whether the battery can recover energy to the maximum extent during braking, thereby avoiding ...
Get PriceTo address the issue, this paper mainly investigates four different peak current solution algorithms, including bisection method, genetic algorithm method, particle swarm …
Get PriceThis study introduces a sophisticated methodology that integrates 3D assessment technology for the reorganization and recycling of retired lithium-ion battery packs, aiming to mitigate environmental challenges and enhance sustainability in the electric vehicle sector. By deploying a kernel extreme learning machine (KELM), variational mode …
Get PriceConsidering the heat transfer from electrochemical reactions and joule heating to the air and consequently a corresponding rise of battery temperature, a model is established in Matlab/Simulink ® and integrated into the calculation process of SoP based on an 18650-type cylinder lithium-ion battery.
Get PriceThis paper presents an online estimation method for peak power based on battery model. Firstly, the first-order RC equivalent circuit model is used to model the battery. …
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