{ "content-origin" "https://www.ctcms.nist.gov/potentials/entry/2015--Islam-M-M-Ostadhossein-A-Borodin-O-et-al--Li-S/" "contributor-id" "4ad03136-ed7f-4316-b586-1e94ccceb311" "description" "This is a ReaxFF parametrization intended to study the structural, mechanical, and kinetic behavior of the amorphous lithiated sulfur (a-LixS) compounds." "developer" [ "c32f37d9-9971-44e3-97b8-bfc2667ae74a" "8eb696a2-e10a-44a8-9651-1a12d75faf11" "9e468d0e-9bf3-4508-8c0b-00110c85a2c8" "41b2cf6d-72cf-449e-a46c-124d48b7755d" "d95e1403-9d6f-4dd4-ba80-1ccbf94dc75b" "12bdc01d-6ee6-4c3e-adcf-4d4ce7cf37ae" "ee4e891c-c415-4c23-8a06-5f7ea6974261" "08ec60a6-d1cd-4152-951d-7c765020b2fa" ] "doi" "10.25950/75cc244d" "domain" "openkim.org" "executables" [] "extended-id" "Sim_LAMMPS_ReaxFF_IslamOstadhosseinBorodin_2015_LiS__SM_058492438145_000" "kim-api-version" "2.2" "maintainer-id" "4ad03136-ed7f-4316-b586-1e94ccceb311" "potential-type" "reax" "publication-year" "2022" "run-compatibility" "portable-models" "simulator-name" "LAMMPS" "simulator-potential" "reax/c" "source-citations" [ { "abstract" "Sulfur is a very promising cathode material for rechargeable energy storage devices. However{,} sulfur cathodes undergo a noticeable volume variation upon cycling{,} which induces mechanical stress. In spite of intensive investigation of the electrochemical behavior of the lithiated sulfur compounds{,} their mechanical properties are not very well understood. In order to fill this gap{,} we developed a ReaxFF interatomic potential to describe Li\u2013S interactions and performed molecular dynamics (MD) simulations to study the structural{,} mechanical{,} and kinetic behavior of the amorphous lithiated sulfur (a-LixS) compounds. We examined the effect of lithiation on material properties such as ultimate strength{,} yield strength{,} and Young{'}s modulus. Our results suggest that with increasing lithium content{,} the strength of lithiated sulfur compounds improves{,} although this increment is not linear with lithiation. The diffusion coefficients of both lithium and sulfur were computed for the a-LixS system at various stages of Li-loading. A grand canonical Monte Carlo (GCMC) scheme was used to calculate the open circuit voltage profile during cell discharge. The Li\u2013S binary phase diagram was constructed using genetic algorithm based tools. Overall{,} these simulation results provide insight into the behavior of sulfur based cathode materials that are needed for developing lithium\u2013sulfur batteries." "author" "Islam, Md Mahbubul and Ostadhossein, Alireza and Borodin, Oleg and Yeates, A. Todd and Tipton, William W. and Hennig, Richard G. and Kumar, Nitin and van Duin, Adri C. T." "doi" "10.1039/C4CP04532G" "issue" "5" "journal" "Phys. Chem. Chem. Phys." "pages" "3383-3393" "publisher" "The Royal Society of Chemistry" "recordkey" "SM_058492438145_000a" "recordtype" "article" "title" "ReaxFF molecular dynamics simulations on lithiated sulfur cathode materials" "url" "http://dx.doi.org/10.1039/C4CP04532G" "volume" "17" "year" "2015" } ] "species" [ "Li" "S" ] "title" "LAMMPS ReaxFF potential for Li-S systems developed by Islam et al. (2014) v000" }