We have demonstrated, both experimentally and theoretically, a novel control strategy for rapid power restoration of EV batteries while driving at low temperatures. It eliminates any wait for battery preheating, thus offering instantaneous availability of vehicles.
As a result, the ratio of driving energy at a low temperature to that at 20 °C would increase, e.g. from 74% to 85% for −40 °C test. This clearly suggests that the present control strategy would be even more effective for future energy-dense batteries.
The main conclusions are summarized as follows: (1) In range-extended mode, compared with the independent thermal management strategy, the integrated thermal management strategy shortens the battery heating time by 39.1 %, saving 2.04 kWh of electricity for heating, and the cabin temperature is not obviously affected;
Great efforts have been made to increase battery power at cold temperatures, notably reformulating electrolytes , , , , , hybridizing batteries with high-power supercapacitors , and preheating batteries before driving , , , , , , , .
Comparison between Fig. 4, Fig. 5 shows that sensible heat, which reflects energy absorbed by battery materials upon heating, would become much less for energy-dense batteries, decreasing from 8.7% of maximum energy to 4.8% at −40 °C, due to relatively lower thermal mass contained in a more energy-dense battery.
It enables full recovery of regenerative braking energy and much increased utilization of available energy even at low temperatures, which in turn significantly increases vehicle cruise range by nearly 50% at −40 °C.
In order to improve the energy utilization efficiency of the whole vehicle, a topology of the multi-mode integrated thermal management system (MITMS) is constructed in …
To fully recuperate this braking energy without lithium plating and restore battery power at low temperatures, we propose a new active control strategy, named "Battery …
To demonstrate the effectiveness of the proposed battery lifespan-attenuation cost model, two battery operation strategies were simulated based on the configuration results …
Request PDF | On Jan 1, 2024, Li Lin and others published Hybrid energy storage system control and capacity allocation considering battery state of charge self-recovery and capacity …
Given their high energy/power densities and long cycle time, lithium-ion batteries (LIBs) have become one type of the most practical power sources for electric/hybrid electric automobile,...
It takes 2845 s for the battery to reach the target temperature with waste heat recovery. However, when the battery is heated through independent PTCs of 2 kW and 4 kW, …
Results show that battery energy loss and breaking recovery energy loss contribute nearly half of the range attenuation, which may be alleviated by battery preheating. …
This review article examines the crucial role of energy harvesting and energy recovery in the design of battery electric vehicles (BEVs) and fuel cell hybrid el
In addition, the rate performance tests also demonstrate that even at a current density of as high as 300 mA cm −2, the energy efficiency of the recovered battery is only …
At the same time, more and more Internet new energy vehicle enterprises have sprung up, and the new energy vehicle industry is blooming. The battery life of new energy …
Given their high energy/power densities and long cycle time, lithium-ion batteries (LIBs) have become one type of the most practical power sources for electric/hybrid electric …
The basic point of recycling and recovery of spent LIBs is to realize efficient extraction of the valuable metal elements. The hydrometallurgical process can recover and purify battery materials from the spent LIBs, and the …
Abstract: A great many EVs in cold areas suffer from range attenuation in winter, which causes driver anxiety concerning the driving range, representing a hot topic. Many researchers have...
DOI: 10.1016/j.est.2023.109693 Corpus ID: 265287080; Hybrid energy storage system control and capacity allocation considering battery state of charge self-recovery and …
To quantitatively investigate the driving range attenuation of electric vehicles (EVs) during winter, an EV model mainly integrated with a passenger-cabin thermal model, …
In Table 3, a C is the actual capacity of the energy battery storage that is attenuated in the operation periods, and a R is annual abandoned electricity rate of the PV power station with …
A great many EVs in cold areas suffer from range attenuation in winter, which causes driver anxiety concerning the driving range, representing a hot topic. Many researchers have …
My Renogy Battery Monitor with 500A smart shunt has a parameter setting called Battery Attenuation ratio. It''s set to 00.000 it''s literally the only thing left for me to set in my …
The energy use of MVHR systems is extremely low, compared to A/C. It depends on the size and ventilation requirements of the dwelling and the efficiency of the ductwork. Typically it is …
To fully recuperate this braking energy without lithium plating and restore battery power at low temperatures, we propose a new active control strategy, named "Battery …
Lithium ion batteries (LiB) are cycled under a galvanostatic regime (˜C/2-rate) between 2.75 V and 4.2 V for up to 1000 cycles. After each completed 100 cycles, the …
The new energy vehicle industry is a strategic emerging industry in many countries, the recycling and regeneration of spent LIBs has become the bottleneck of its sustainable development. ... The cascade …
The basic point of recycling and recovery of spent LIBs is to realize efficient extraction of the valuable metal elements. The hydrometallurgical process can recover and …