Thermal characteristics of ultrahigh power density lithium-ion battery

Liu, Zehui; Wang, Chu; Guo, Xinming; Cheng, Shikuo; Gao, Yinghui; Wang, Rui; Sun, Yaohong; Yan, Ping

doi:10.1016/j.jpowsour.2021.230205

Cited by 30 publications

(9 citation statements)

References 44 publications

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“…From the battery heat generation model introduced by Equation (), it can be seen that the battery heat generation rate is divided into irreversible heat and reversible heat, and the irreversible heat is directly related to its internal resistance, so it is necessary to obtain the change of its internal resistance. Many types of research have been done on the methods of internal resistance testing 38,39 . In this paper, a hybrid pulse power characteristic (HPPC) experiment is used to obtain the internal resistance of the battery 40 .…”

Section: Methodsmentioning

confidence: 99%

“…Many types of research have been done on the methods of internal resistance testing. 38,39 In this paper, a hybrid pulse power characteristic (HPPC) experiment is used to obtain the internal resistance of the battery. 40 In the process of HPPC experiment, the battery was first discharged to 2.7 V(0%sco), then stood for 1 h, then charged to 10%soc with C/3 current, and then pulse test with 3 C current.…”

Section: Experiments Of Internal Resistance and Entropy Heat Coefficientmentioning

confidence: 99%

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Liquid cooling system optimization for a cell‐to‐pack battery module under fast charging

Sun

Chen

Shen

et al. 2022

Intl J of Energy Research

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Summary Cell‐to‐pack (CTP) structure has been proposed for electric vehicles (EVs). However, massive heat will be generated under fast charging. To address the temperature control and thermal uniformity issues of CTP module under fast charging, experiments and computational fluid dynamics (CFD) analysis are carried out for a bottom liquid cooling plate based–CTP battery module. The impact of the channel height, channel width, coolant flow rate, and coolant temperature on the temperature and temperature difference are analyzed. A liquid cooling control method of exchanging the coolant inlet and outlet is proposed to optimize the temperature uniformity. Besides, the temperature uniformity enhancement by this control method at different intervals is compared. Results indicate that the flow rate and temperature positively affect the battery temperature; the maximum temperature can be reduced by 10.93% and 15.12%, respectively, under the same operations. However, the coolant temperature increment increases the maximum temperature difference by about 41.58%. Reversing flow enhances the cooling effect of conventional unidirectional flow of the CTP battery module under fast charging, especially for the thermal uniformity, which provides guidance for the battery thermal management system (BTMS) control under fast charging.

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Section: Methodsmentioning

confidence: 99%

Section: Experiments Of Internal Resistance and Entropy Heat Coefficientmentioning

confidence: 99%

Liquid cooling system optimization for a cell‐to‐pack battery module under fast charging

Sun

Chen

Shen

et al. 2022

Intl J of Energy Research

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“…Although commercial high-power LIBs can nowadays achieve a discharging rate as high as 10 C via strategies such as material modification, electrode optimization, and integrated design, [18,19] the maximum charging rate for most LIBs is generally limited to 3 C. [18] Growing consensus on the primary limiting factor is pinpointed on the Li + intercalation and diffusion inside the anode, whereas, on the other hand, fast charging is not refrained by the cathode side due to the faster Li + deintercalation dynamics. [20] The commercial widely used graphite anode suffers from the sluggish Li + diffusion kinetics and a low Li + intercalation potential (0.1 V vs Li/Li + ).…”

Section: Introductionmentioning

confidence: 99%

2D Layered Materials for Fast‐Charging Lithium‐Ion Battery Anodes

Yang

Dong

Cheng

et al. 2023

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The development of electric vehicles has received worldwide attention in the background of reducing carbon emissions, wherein lithium‐ion batteries (LIBs) become the primary energy supply systems. However, commercial graphite‐based anodes in LIBs currently confront significant difficulty in enduring ultrahigh power input due to the slow Li+ transport rate and the low intercalation potential. This will, in turn, cause dramatic capacity decay and lithium plating. The 2D layered materials (2DLMs) recently emerge as new fast‐charging anodes and hold huge promise for resolving the problems owing to the synergistic effect of a lower Li+ diffusion barrier, a proper Li+ intercalation potential, and a higher theoretical specific capacity with using them. In this review, the background and fundamentals of fast‐charging for LIBs are first introduced. Then the research progress recently made for 2DLMs used for fast‐charging anodes are elaborated and discussed. Some emerging research directions in this field with a short outlook on future studies are further discussed.

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“…The market for electric vehicles (EVs) continues to increase contemporarily, as battery technology continues to advance. − However, the low driving range of EVs is a significant impediment to their current development at the moment . Effective approaches to address this issue include improving the energy density of lithium-ion batteries. − …”

Section: Introductionmentioning

confidence: 99%

Synergistic Dual-Salt Electrolyte for Safe and High-Voltage LiNi_0.8Co_0.1Mn_0.1O₂//Graphite Pouch Cells

et al. 2022

ACS Appl. Mater. Interfaces

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Concerns about thermal safety and unresolved highvoltage stability have impeded the commercialization of highenergy lithium-ion batteries bearing LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM811) cathodes. Enhancing the cathode structure and optimizing the electrolyte formula have demonstrated significant potential in improving the high-voltage properties of batteries while simultaneously minimizing thermal hazards. The current study reports the development of a high-voltage lithium-ion battery that is both safe and reliable, using single-crystal NCM811 and a dual-salt electrolyte (DSE). After 200 cycles at high voltage (up to 4.5 V), the capacity retention of the battery with DSE was 98.80%, while that for the battery with a traditional electrolyte was merely 86.14%. Additionally, in comparison to the traditional electrolyte, the DSE could raise the tipping temperature of a battery's thermal runaway (TR) by 31.1 °C and lower the maximum failure temperature by 76.1 °C. Moreover, the DSE could effectively reduce the battery's TR heat release rate (by 23.08%) as well as eliminate concerns relating to fire hazards (no fire during TR). Based on material characterization, the LiDFOB and LiBF 4 salts were found to facilitate the in situ formation of an F-and B-rich cathodeelectrolyte interphase, which aids in inhibiting oxygen and interfacial side reactions, thereby reducing the intensity of redox reactions within the battery. Therefore, the findings indicate that DSE is promising as a safe and high-voltage lithium-ion battery material.

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Thermal characteristics of ultrahigh power density lithium-ion battery

Cited by 30 publications

References 44 publications

Liquid cooling system optimization for a cell‐to‐pack battery module under fast charging

Liquid cooling system optimization for a cell‐to‐pack battery module under fast charging

2D Layered Materials for Fast‐Charging Lithium‐Ion Battery Anodes

Synergistic Dual-Salt Electrolyte for Safe and High-Voltage LiNi_0.8Co_0.1Mn_0.1O₂//Graphite Pouch Cells

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Thermal characteristics of ultrahigh power density lithium-ion battery

Cited by 30 publications

References 44 publications

Liquid cooling system optimization for a cell‐to‐pack battery module under fast charging

Liquid cooling system optimization for a cell‐to‐pack battery module under fast charging

2D Layered Materials for Fast‐Charging Lithium‐Ion Battery Anodes

Synergistic Dual-Salt Electrolyte for Safe and High-Voltage LiNi0.8Co0.1Mn0.1O2//Graphite Pouch Cells

Contact Info

Product

Resources

About

Synergistic Dual-Salt Electrolyte for Safe and High-Voltage LiNi_0.8Co_0.1Mn_0.1O₂//Graphite Pouch Cells