An improved calorimetric method for characterizations of the specific heat and the heat generation rate in a prismatic lithium ion battery cell

2019 ◽  
Vol 180 ◽  
pp. 724-732 ◽  
Author(s):  
Lei Sheng ◽  
Lin Su ◽  
Hengyun Zhang ◽  
Yidong Fang ◽  
Haifeng Xu ◽  
...  
Keyword(s):  
Specific Heat ◽  
Lithium Ion Battery ◽  
Heat Generation ◽  
Lithium Ion ◽  
Generation Rate ◽  
Calorimetric Method ◽  
Heat Generation Rate ◽  
Battery Cell

Modeling Heat Generation in a Lithium Ion Battery

2011 ◽  
Author(s):  
Wei Wu ◽  
Xinran Xiao ◽  
Xiaosong Huang
Keyword(s):  
Heat Generation ◽  
Numerical Study ◽  
Lithium Ion ◽  
Local Heat ◽  
Generation Rate ◽  
Generation Model ◽  
Heat Generation Rate ◽  
Battery Cell ◽  
Discharge Rates ◽  
Generation Mechanisms

This paper presents a numerical study on heat generation in a lithium-ion (LiC6/LiPF6/LiyMn2O4) battery cell. The numerical model considered multi-physics including battery kinetics, diffusion, and thermal analysis. The heat generation rate was determined by a local heat generation model. This model enables the investigation of the effects of battery parameters on different heat generation mechanisms and the overall heat generation rate in the battery. The effects of the thickness of the battery components and the size of the electrode particles at different discharge rates were evaluated. The results revealed the relationships between these parameters. A battery with a low heat generation rate and efficient battery utilization may be achieved through parameter optimization.

In‐situ heat generation measurement of the anode and cathode in a single‐layer lithium ion battery cell

2020 ◽  
Vol 44 (11) ◽  
pp. 9141-9148
Author(s):  
Shengxin Zhu ◽  
Jindong Han ◽  
Ya‐Na Wang ◽  
Tai‐Song Pan ◽  
Yi‐Min Wei ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Heat Generation ◽  
Single Layer ◽  
Lithium Ion ◽  
Battery Cell

Local Heat Generation in a Single Stack Lithium Ion Battery Cell

2015 ◽  
Vol 186 ◽  
pp. 404-412 ◽  
Author(s):  
C. Heubner ◽  
M. Schneider ◽  
C. Lämmel ◽  
A. Michaelis
Keyword(s):  
Lithium Ion Battery ◽  
Heat Generation ◽  
Lithium Ion ◽  
Local Heat ◽  
Battery Cell ◽  
Local Heat Generation

Thermal Simulation Analysis of a Lithium-Ion Battery

2021 ◽  
Vol 4 (1) ◽  
Keyword(s):  
Lithium Ion Battery ◽  
Electric Vehicles ◽  
Heat Generation ◽  
Lithium Ion ◽  
High Energy ◽  
Thermal Runaway ◽  
Transport Processes ◽  
High Energy Density ◽  
Battery Cell ◽  
Discharge Rates

Lithium – Ion batteries are now extensively used in electric vehicles (EV) as well as in renewable power generation applications for both on-grid and off grid storage. Some of the major challenges with batteries for electric vehicles are the requirement of high energy density, compatibility with high charge and discharge rates while maintaining high performance, and prevention of any thermal runaway conditions. The objective of this research is to develop a computer simulation model for coupled electrochemical and thermal analysis and characterization of a lithium-ion battery performance subject to a range of charge and discharge loading, and thermal environmental conditions. The electrochemical model includes species and charge transport through the liquid and solid phases of electrode and electrolyte layers along with electrode kinetics. The thermal model includes several heat generation components such as reversible, irreversible and ohmic heating, and heat dissipation through layers of battery cell. Simulation is carried out to evaluate the electrochemical and thermal behavior with varying discharge rates. Results demonstrated a strong variation in the activation and ohmic polarization losses as well as in higher heat generation rates. Results show variation of different modes and order of cell heat generation rates that results in a higher rate of cell temperature rise as battery cell is subjected to higher discharge rates. The model developed will help in gaining a comprehensive insights of the complex transport processes in a cell and can form a platform for evaluating number new candidates for battery chemistry for enhanced battery performance and address safety issues associated with thermal runaway.

scholarly journals Thermal Abuse Behavior of the LIR2450 Micro Coin Cell Battery Having Capacity of 120 mAh with Internal Short Circuit by Penetrating Element

Symmetry ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 246
Author(s):  
Moo-Yeon Lee ◽  
Namwon Kim ◽  
Jae-Hyeong Seo ◽  
Mahesh Suresh Patil
Keyword(s):  
Heat Generation ◽  
Short Circuit ◽  
Lithium Ion ◽  
State Of Charge ◽  
Generation Rate ◽  
Heat Generation Rate ◽  
Coin Cell ◽  
Element Size ◽  
Internal Short Circuit ◽  
Circuit Resistance

Internal short circuit in lithium-ion battery by penetrating element leads to exothermic behavior due to accumulated heat. In the present study, investigations are conducted on the thermal behavior of the LIR2450 micro coin cell haivng capacity of 120 mAh, with internal short circuit by penetrating element. The experimental coin cell discharge study was conducted and validated with numerical study within ±5.0%. The effect of penetrating element size, location of penetrating element, state of charge, discharge rate, short-circuit resistance, and heat transfer co-efficient on maximum coin cell temperature and heat generation rate are analyzed. The penetrating element diameters of 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, and 3.5 mm are considered. The effect of initial state of charge (SOC) is considered with 100%, 80%, 60%, and 40%. Three locations for penetrating element are considered with the center, the middle of the radius, and on the edge of the coin cell radius. The different discharge rates of 1C, 2C, 3C, and 4C are considered. The higher-penetrating element size of 3.5 mm with location at the center of the coin cell with 100% SOC showed maximum heat generation rate and maximum temperature of the coin cell. In addition, the optimum value of the dimensionless heat generation rate is obtained at dimensionless short-circuit resistance. The study provides comprehensive insights on the thermal behavior of the lithium-ion cell during thermal abuse condition with internal short circuit by penetrating element.

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