Electro-Thermal Modeling of Large Format Lithium-Ion Pouch Cells: A Cell Temperature Dependent Linear Polarization Expression

Cooling the surface of large format batteries with solid conductive plates, or fins, has an inherent advantage of reducing the number of liquid seals relative to some mini-channel cold plate designs, as liquid is not passed through the numerous individual plates directly. This may reduce the overall pack leakage risk which is of utmost importance due to safety concerns associated with the possibility of a cell short circuit and thermal runaway event. However, fin cooling comes at a cost of an increased thermal resistance which can lead to higher cell temperatures and a poorer temperature uniformity under aggressive heat generation conditions. In this paper, a novel graphite-based fin material with an in-plane thermal conductivity 5 times greater than aluminium with the same weight is presented for advanced battery cooling. The thermal performance of the fin is benchmarked against conventional copper and aluminium fins in an experimental programme cycling real 53 Ah pouch cells. The results from the extensive experimental testing indicate that the new fin can reduce both the peak measured temperature and surface temperature gradient by up to 8 °C and 5 °C respectively, when compared to aluminium fins under an aggressive electric vehicle duty-cycle.

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Impact of Tab Location on Large Format Lithium-Ion Pouch Cell Based on Fully Coupled Tree-Dimensional Electrochemical-Thermal Modeling

Electrochimica Acta ◽

10.1016/j.electacta.2014.08.115 ◽

2014 ◽

Vol 147 ◽

pp. 319-329 ◽

Cited By ~ 68

Author(s):

Ahmadou Samba ◽

Noshin Omar ◽

Hamid Gualous ◽

Odile Capron ◽

Peter Van den Bossche ◽

...

Keyword(s):

Thermal Modeling ◽

Lithium Ion ◽

Large Format ◽

Fully Coupled

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Electrochemical-thermal modeling and experimental validation of commercial graphite/LiFePO 4 pouch lithium-ion batteries

International Journal of Thermal Sciences ◽

10.1016/j.ijthermalsci.2018.03.004 ◽

2018 ◽

Vol 129 ◽

pp. 218-230 ◽

Cited By ~ 16

Author(s):

Mehrdad Mastali ◽

Evan Foreman ◽

Ali Modjtahedi ◽

Ehsan Samadani ◽

Amir Amirfazli ◽

...

Keyword(s):

Lithium Ion Batteries ◽

Experimental Validation ◽

Thermal Modeling ◽

Lithium Ion

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Shaking Lithium‐Ion Cells on a Rocker – Temperature‐Dependent Influence of Mechanical Movement on Lithium‐Ion Battery Lifetime

Chemie Ingenieur Technik ◽

10.1002/cite.201800218 ◽

2021 ◽

Author(s):

Elisabeth Maria Boerger ◽

Felix Gottschalk ◽

Laura Drescher ◽

Alexander Boerger

Keyword(s):

Lithium Ion Battery ◽

Lithium Ion ◽

Temperature Dependent ◽

Battery Lifetime ◽

Lithium Ion Cells ◽

Mechanical Movement

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H2-CO2 polymer electrolyte fuel cell that generates power while evolving CH4 at the Pt0.8Ru0.2/C cathode

Scientific Reports ◽

10.1038/s41598-021-87841-4 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Shofu Matsuda ◽

Yuuki Niitsuma ◽

Yuta Yoshida ◽

Minoru Umeda

Keyword(s):

Fuel Cell ◽

Electric Power ◽

Polymer Electrolyte ◽

Carbon Capture ◽

Polymer Electrolyte Fuel Cell ◽

Cell Temperature ◽

Faradaic Efficiency ◽

Carbon Capture And Utilization ◽

Electrode Potentials ◽

A Cell

AbstractGenerating electric power using CO2 as a reactant is challenging because the electroreduction of CO2 usually requires a large overpotential. Herein, we report the design and development of a polymer electrolyte fuel cell driven by feeding H2 and CO2 to the anode (Pt/C) and cathode (Pt0.8Ru0.2/C), respectively, based on their theoretical electrode potentials. Pt–Ru/C is a promising electrocatalysts for CO2 reduction at a low overpotential; consequently, CH4 is continuously produced through CO2 reduction with an enhanced faradaic efficiency (18.2%) and without an overpotential (at 0.20 V vs. RHE) was achieved when dilute CO2 is fed at a cell temperature of 40 °C. Significantly, the cell generated electric power (0.14 mW cm−2) while simultaneously yielding CH4 at 86.3 μmol g−1 h−1. These results show that a H2-CO2 fuel cell is a promising technology for promoting the carbon capture and utilization (CCU) strategy.

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