Electronic module for the thermal monitoring of a Li-ion battery cell through the electrochemical impedance estimation

2016 ◽  
Author(s):  
Marco Ranieri ◽  
Diego Alberto ◽  
Helene Piret ◽  
Viviane Cattin
Keyword(s):  
Electrochemical Impedance ◽  
Li Ion Battery ◽  
Thermal Monitoring ◽  
Battery Cell ◽  
Li Ion

Influence of VC and FEC Additives on Interphase Properties of Carbon in Li-Ion Cells Investigated by Combined EIS & EQCM-D

2020 ◽  
Author(s):  
Paul Kitz ◽  
Matthew Lacey ◽  
Petr Novák ◽  
Erik Berg
Keyword(s):  
Electrochemical Impedance ◽  
Solid Electrolyte Interphase ◽  
Electrochemical Quartz Crystal Microbalance ◽  
Gas Analysis ◽  
Side Reactions ◽  
Ion Diffusion ◽  
Battery Cell ◽  
Anode Passivation ◽  
Order Of Magnitude ◽  
Li Ion

<div>The electrolyte additives vinylene carbonate (VC) and fluoroethylene carbonate (FEC) are well known for increasing the lifetime of a Li-ion battery cell by supporting the formation of an effective solid electrolyte interphase (SEI) at the anode. In this study combined simultaneous electrochemical impedance spectroscopy (EIS) and <i>operando</i> electrochemical quartz crystal microbalance with dissipation monitoring (EQCM-D) are employed together with <i>in situ</i> gas analysis (OEMS) to study the influence of VC and FEC on the passivation process and the interphase properties at carbon-based anodes. In small quantities both additives reduce the initial interphase mass loading by 30 to 50 %, but only VC also effectively prevents continuous side reactions and improves anode passivation significantly. VC and FEC are both reduced at potentials above 1 V vs. Li<sup>+</sup>/Li in the first cycle and change the SEI composition which causes an increase of the SEI shear storage modulus by over one order of magnitude in both cases. As a consequence, the ion diffusion coefficient and conductivity in the interphase is also significantly affected. While small quantities of VC in the initial electrolyte increase the SEI conductivity, FEC decomposition products hinder charge transport through the SEI and thus increase overall anode impedance significantly. </div>

Real-Time Estimation of Lithium-Ion Concentration in Both Electrodes of a Lithium-Ion Battery Cell Utilizing Electrochemical–Thermal Coupling

2017 ◽  
Vol 139 (3) ◽  
Author(s):  
Satadru Dey ◽  
Beshah Ayalew
Keyword(s):  
Real Time ◽  
Unscented Kalman Filter ◽  
Lithium Ion ◽  
Time Estimation ◽  
Li Ion Battery ◽  
Battery Cell ◽  
Thermal Dynamics ◽  
Estimation Scheme ◽  
Real Time Estimation ◽  
Li Ion

This paper proposes and demonstrates an estimation scheme for Li-ion concentrations in both electrodes of a Li-ion battery cell. The well-known observability deficiencies in the two-electrode electrochemical models of Li-ion battery cells are first overcome by extending them with a thermal evolution model. Essentially, coupling of electrochemical–thermal dynamics emerging from the fact that the lithium concentrations contribute to the entropic heat generation is utilized to overcome the observability issue. Then, an estimation scheme comprised of a cascade of a sliding-mode observer and an unscented Kalman filter (UKF) is constructed that exploits the resulting structure of the coupled model. The approach gives new real-time estimation capabilities for two often-sought pieces of information about a battery cell: (1) estimation of cell-capacity and (2) tracking the capacity loss due to degradation mechanisms such as lithium plating. These capabilities are possible since the two-electrode model needs not be reduced further to a single-electrode model by adding Li conservation assumptions, which do not hold with long-term operation. Simulation studies are included for the validation of the proposed scheme. Effect of measurement noise and parametric uncertainties is also included in the simulation results to evaluate the performance of the proposed scheme.

Development of the Li-ion Battery Cell for Hybrid Vehicle

2016 ◽  
Author(s):  
Hiroki Nagai ◽  
Masahiro Morita ◽  
Koichi Satoh
Keyword(s):  
Hybrid Vehicle ◽  
Li Ion Battery ◽  
Battery Cell ◽  
Li Ion

A New Methodology for Evaluating the High-Power Behavior of a Li-Ion Battery Cell

2019 ◽  
Vol 25 (36) ◽  
pp. 253-262 ◽  
Author(s):  
Andreas Nyman ◽  
Tommy G. Zavalis ◽  
Ragna Elger ◽  
Maårten Behm ◽  
Göran Lindbergh
Keyword(s):  
High Power ◽  
Li Ion Battery ◽  
Battery Cell ◽  
Li Ion

Heat generation in high power prismatic Li-ion battery cell with LiMnNiCoO2cathode material

2014 ◽  
Vol 38 (11) ◽  
pp. 1424-1437 ◽  
Author(s):  
Yasir Abdul-Quadir ◽  
Tomi Laurila ◽  
Juha Karppinen ◽  
Kirsi Jalkanen ◽  
Kai Vuorilehto ◽  
...  
Keyword(s):  
Heat Generation ◽  
High Power ◽  
Li Ion Battery ◽  
Battery Cell ◽  
Li Ion

scholarly journals Transient Thermal Analysis of a Li-Ion Battery Module for Electric Cars Based on Various Cooling Fan Arrangements

Energies ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2387
Author(s):  
Van-Thanh Ho ◽  
Kyoungsik Chang ◽  
Sang Wook Lee ◽  
Sung Han Kim
Keyword(s):  
Temperature Difference ◽  
Cooling System ◽  
Maximum Temperature ◽  
Clear Understanding ◽  
Li Ion Battery ◽  
Discharge Condition ◽  
Battery Cell ◽  
Electric Cars ◽  
Li Ion ◽  
Battery Module

This paper presents a three-dimensional modeling approach to simulate the thermal performance of a Li-ion battery module for a new urban car. A single-battery cell and a 52.3 Ah Li-ion battery module were considered, and a Newman, Tiedemann, Gu, and Kim (NTGK) model was adopted for the electrochemical modeling based on input parameters from the discharge experiment. A thermal–electrochemical coupled method was established to provide insight into the temperature variations over time under various discharge conditions. The distribution temperature of a single-battery cell was predicted accurately. Additionally, in a 5C discharge condition without a cooling system, the temperature of the battery module reached 114 °C, and the temperature difference increased to 25 °C under a 5C discharging condition. This condition led to the activation of thermal runaway and the possibility of an explosion. However, the application of a reasonable fan circulation and position reduced the maximum temperature to 49.7 °C under the 5C discharge condition. Moreover, accurate prediction of the temperature difference between cell areas during operation allowed for a clear understanding and design of an appropriate fan system.

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