Modeling and simulation of 2D lithium-ion solid state battery

Abstract

Summary The goal of the work presented here was to develop a simulation approach for studying the effects of materials and geometry on the performance of Li‐ion Solid State Batteries (SSB). Simulation provides the opportunity to explore, with ease, different material properties and cell geometries to optimize a Li‐ion SSB's performance. Simulations shown in this paper are time‐dependent and consider electrochemical reaction, heat transfer, the diffusion of Li‐ions and electrons in the electrolyte, and solid Li diffusion in the positive electrode. A 2D model was simulated and the results shown. The simulations were able to show discharge curves, heat flux, the concentration of Li‐ions, electrons, and solid Li at any time in the discharge cycle. Copyright © 2015 John Wiley & Sons, Ltd.

Resistance exterior force property of lithium‐ion pouch batteries with different positive materials

“…On the basis of the proposed mechanical analysis model, future work will address two topics. Firstly, establish a new mechanical–electrical‐thermal coupled model under exterior loading based on previous research . Secondly, consider the influence of charge–discharge efficiency, inertial effect, SOC effect, and strain rate on the mechanical property and ISC of LIB under the mechanical abuse .…”

Achieving high performance for aluminum stabilized Li 7 La 3 Zr 2 O 12 solid electrolytes for all solid‐state Li‐ion batteries: A thermodynamic point of view

“…Selected pellets were heated up to 114°C in a tubular furnace designated for that purpose, and activation energy (E a ) was calculated using the equation: where σ, k, and T showed bulk conductivity, Boltzmann constant, and temperature, respectively. Table 2 showed the calculated Gibbs free energy and enthalpy changes of LiOH, Li 2 CO 3 , LiNO 3 , La(OH) 3 , and Al(OH) 3 as a function of temperature for their oxide formation reactions given below:…”

“…Solid electrolytes for all solid-state lithium batteries show unique advantages over organic-based liquid electrolytes such as excellent battery lifetime, electrochemical and thermal stability, and enhanced safety. [1][2][3] Accordingly, they received a lot of interest especially for the safetyconcerning applications such as electrical vehicles. Solid electrolytes can be divided into six different crystallographic orientations.…”

“…Solid electrolytes can be divided into six different crystallographic orientations. These structures are NASICON (eg, LiTi 2 (PO 4 ) 3 ), LISICON (eg, Li 10 GeP 2 S 12 ), perovskite (eg, Li 0.34 La 0.56 TiO 3 ), sulfide (eg, Li 7 P 3 S 11 ), antiperovskite (eg, Li 3 OCl), and garnet (eg, Li 7 La 3 Zr 2 O 12 ) type solid electrolytes. 4 Nowadays, garnet-type solid electrolytes became popular because of their outstanding ionic conductivities among other types of solid electrolytes.…”

“…According to Table 1, there is an overall agreement on ZrO 2 as a Zr source, but other metal sources vary and result in different synthesis conditions. The common Li sources are LiOH and Li 2 CO 3 ; La sources are La 2 O 3 and La(OH) 3 . Al 2 O 3 was found as the only Al source when it was used for stabilizing agent.…”