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Doh et al. (2019) used intermittent current transient technology to obtain the internal resistance at different temperatures and SOC, and he established a sixth-order polynomial function relationship between charging internal resistance and discharging internal resistance at temperatures of 298K, 313K and 328K with SOC as independent variables.
Ratnakumar et al. (2006) explored the internal resistance of LIB at 25 °C, 0 °C and − 20 °C respectively, under different SOC (20% to 100%) and discharge rates (using the direct current impedance measurement method).
Moreover, when SOC is 0.1, the internal resistance is 130 m Ω at 5 °C, and the internal resistance is 63 m Ω at 45 °C. The deviation between the two measured values is around 70 m Ω, the lower the battery ambient temperature, the greater the internal resistance value. This finding is consistent with Yang’s study (Lai et al., 2019).
The maximum interval on internal resistance caused by modifying the discharge rate (0.5C-3C) is around 9 m Ω. The values of internal resistance change small (almost stable) while the discharge rate alters at the high temperature (45 °C) and the same SOC.
For a variety of BTM technologies, the battery’s internal resistance always plays a critical role in the heat generation rate of the battery. Many factors (temperature, SOC and discharge rate) impact on the internal resistance, however, scant research has explored the effect of battery discharge rate on the internal resistance.
The diffusion coefficient is more suitable for the aged battery, and the polarization resistance is more accurate for the new battery. It is crucial to identify the battery's internal short circuit (ISC) for safety. The study aims to explore the effectiveness of ISC detection methods through battery aging.
This paper analyzes the smart charging system for dealing with issues related to large parking garages, and analyzes the relevant technical standards of intelligent charging …
Fig. 1 shows the global sales of EVs, including battery electric vehicles (BEVs) and plug-in hybrid electric vehicles (PHEVs), as reported by the International Energy Agency …
Grain alignment and polarization engineering were simultaneously utilized to enhance the energy storage performance of Na1/2Bi1/2TiO3-based multilayer ceramic …
Thus, the thermal strain of the energy pile body can be represented by (17) ε = α P ∙ Δ T where α P is the thermal expansion coefficient of energy pile. Fig. 19 displays the …
The internal RTD measured an average 5.8 °C higher temperature inside the cells than the external RTD with almost 10 times faster detection ability, prohibiting thermal …
AC charging (pile) station. DC charging (pile) station. EV charging station power module. Wireless vehicle charging module. Energy storage power conversion system (PCS) Micro inverter. …
Lithium-ion batteries (LIB) have become one of the most promising solutions in energy storage applications of EVs, due to their good advantages in high energy and power …
1. Introduction. Electric vehicles (EV) are widely viewed as an important transitional technology for energy-saving and environmentally sustainable transportation [].As …
In this work, a novel method for incorporating a resistance temperature …
In this work, a novel method for incorporating a resistance temperature detector (RTD) behind the cathode current collector of a LIB via additive manufacturing was developed …
This paper puts forward the dynamic load prediction of charging piles of energy storage electric vehicles based on time and space constraints in the Internet of Things …
This integrated wireless charging energy storage device is easily attached to …
This paper puts forward the dynamic load prediction of charging piles of …
Their results demonstrate that the polarization resistance, a battery internal …
This integrated wireless charging energy storage device is easily attached to the exterior of the car without complex fixing accessories, indicating good environmental …
This paper aims to fill this gap and consider 8 types of fault data for …
The invention relates to a method for testing the performance of a galvanic pile in an energy storage power station, which judges whether the galvanic pile carries out performance test...
The global shift towards electric vehicles (EVs) underscores the critical need for reliable battery performance and safety. Lithium-ion batteries, particularly Li-NMC (lithium …
We show that an internal resistance mismatch leads to high current into each …
This paper aims to fill this gap and consider 8 types of fault data for diagnosing, at least including physical installation error fault, charging-pile mechanical fault, charging-pile...
The resistance of the internal short-circuit (ISC) has a potential evolution …
We show that an internal resistance mismatch leads to high current into each cell during part of the charging cycle. Since capacity fading is strongly dependent on …
Truck mobile charging stations are electric or hybrid vehicles, e.g. a truck or a van, equipped with one or more charging outlets, which can travel a distance in a certain …
Lai et al. (2019) tested the internal resistance of LIB at different temperatures and various SOC conditions using the hybrid pulse power characteristic (HPPC) experiments, …
Their results demonstrate that the polarization resistance, a battery internal resistance reflecting the charge transfer process, is strongly correlated to the ISC. The authors …
A renewable energy storage system is being proposed through a multi-disciplinary research project. This system utilizes reinforced concrete pile foundations to store renewable energy generated from solar panels attached …
This paper analyzes the smart charging system for dealing with issues related …