Differential hysteresis models for a silicon-anode Li-ion battery cell

2020 ◽  
Author(s):  
Carles Pregonas Graells ◽  
M. Scott Trimboli ◽  
Gregory L. Plett
Keyword(s):  
Silicon Anode ◽  
Li Ion Battery ◽  
Battery Cell ◽  
Li Ion

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.

scholarly journals A New All-Solid-State Lithium-Ion Battery Working without a Separator in an Electrolyte

2018 ◽  
Author(s):  
Seonggyu Cho ◽  
Shinho Kim ◽  
Wonho Kim ◽  
Seok Kim ◽  
Sungsook Ahn
Keyword(s):  
Solid State ◽  
Ionic Conductivity ◽  
Solid Electrolyte ◽  
System Development ◽  
Lithium Ion ◽  
Internal Resistance ◽  
Li Ion Battery ◽  
Battery Cell ◽  
Metal Anode ◽  
Li Ion

Considering the safety issues of Li ion batteries, all-solid-state polymer electrolyte has been one of the promising solutions. In this point, achieving a Li ion conductivity in the solid state electrolytes comparable to liquid electrolytes (>1 mS/cm) is particularly challenging. Employment of polyethylene oxide (PEO) solid electrolyte has not been not enough in this point due to high crystallinity. In this study, hybrid solid electrolyte (HSE) systems are designed with Li1.3Al0.3Ti0.7(PO4)3(LATP), PEO and Lithium hexafluorophosphate (LiPF6) or Lithium bis(trifluoromethanesulfonyl)imide (LiTFSI). Hybrid solid cathode (HSC) is also designed using LATP, PEO and lithium cobalt oxide (LiCoO2, LCO)—lithium manganese oxide (LiMn2O4, LMO). The designed HSE system displays 3.0 × 10−4 S/cm (55 ℃) and 1.8 × 10−3 S/cm (23 ℃) with an electrochemical stability as of 6.0 V without any separation layer introduction. Li metal (anode)/HSE/HSC cell in this study displays initial charge capacity as of 123.4/102.7 mAh/g (55 ℃) and 73/57 mAh/g (25 °C). To these systems, Succinonitrile (SN) has been incorporated as a plasticizer for practical secondary Li ion battery system development to enhance ionic conductivity. The incorporated SN effectively increases the ionic conductivity without any leakage and short-circuits even under broken cell condition. The developed system also overcomes the typical disadvantages of internal resistance induced by Ti ion reduction. In this study, optimized ionic conductivity and low internal resistance inside the Li ion battery cell have been obtained, which suggests a new possibility in the secondary Li ion battery development.

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