Nickel, OleOleNickelJanssen, MathijsMathijsJanssenSchlaich, AlexanderAlexanderSchlaichMeißner, RobertRobertMeißner2026-05-222026-05-222026-05-11The Journal of Chemical Physics 164 (18): 184703 (2026)https://hdl.handle.net/11420/63183We use atomistic simulations to study the electrical double layer (EDL) at an electrode–electrolyte interface at different temperatures. For a constrained electrode charge, the potential drop over the EDL increases with temperature, a phenomenon known as the thermal voltage rise (TVR). Prior continuum models attributed TVR to expansion of the EDL with increasing temperature; conversely, our simulations with aqueous, organic, and ionic liquids show that the EDL does not expand but that the TVR is caused by a decrease in interfacial permittivity with increasing temperatures.en1089-7690202618AIP Publishinghttps://creativecommons.org/licenses/by/4.0/Technology::620: Engineering::620.1: Engineering Mechanics and Materials ScienceJournal Articlehttps://doi.org/10.15480/882.1718110.1063/5.031819410.15480/882.17181