Mathematical Modeling of LiAl / LiCl , KCl / FeS Cells

Abstract

LBL-22265The

Reversible and irreversible heat generation of NCA/Si–C pouch cell during electrochemical energy-storage process

“…The reversible heat is related to the chemical reactions in cells, while the irreversible heat is related to concentration polarization, activation polarization and ohmic polarization. According to Bernardi et al [4] , the heat generation of the full cells can be calculated by using the simplified equation as follows:…”

“…According to Bernardi et al [4] , when taking the size into consideration, the rate of heat generated can also be calculated by Eq. (6) :…”

“…Many effort s have been att ached on the studies of battery heat behavior since 1985. Bernardi et al [4] proposed a general energy balance for battery system, which demonstrated that the heat produced in batteries consist of three parts: electrical power, sum of producible reversible work and reactions' entropic heat and mixing heat. Based on Bernardi's theory, several researches focused on calculating the heat generated in batteries during charge and discharge processes [5][6][7] .…”

Thermal Behavior and Heat Generation Modeling of Lithium Sulfur Batteries

“…To build a battery thermal model, the equation for energy balance has to be considered for a given battery cooling or heating scenario. A general energy balance equation for battery systems was proposed by Bernardi et al in (10). Nevertheless, if adiabatic conditions are considered, the energy balance equation can be simplified and the accumulation of enthalpy in the battery cell will match the heat generation (11):…”

Thermal-Electrochemical Lithium-Ion Battery Simulations on Microstructure and Porous Electrode Scale

“…volume averaging [9][10] or formal mathematical homogenization theory [11]. The original models of Newman and coworkers have been complemented by thermal transport [12][13][14] and are also used in the analysis of degradation phenomena as e.g. plating [15].…”