{ "node": { "id": "term:ionic-path", "type": "Term", "label": "Ionic path", "properties": { "id": "ionic-path", "name": "Ionic path", "section": "topic-electrochemistry", "definition": "The route lithium ions take: out of one electrode’s particles, through the electrolyte in its pores, across the separator and into the particles of the other electrode. 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More of one constituent displaces others at fixed volume." }, "url": "https://lemonergy.com/learn/glossary/electrode/", "mentions": [ "electrolyte", "coating" ] } }, { "id": "lesson:fundamentals/cell-anatomy/", "type": "Lesson", "label": "Lesson 1 · Cell anatomy", "properties": { "url": "https://lemonergy.com/learn/fundamentals/cell-anatomy/" } }, { "id": "visual:diffusion", "type": "Visual", "label": "Flux follows the concentration slope", "properties": { "title": "Flux follows the concentration slope", "summary": "The minus sign in Fick’s law sends material down its concentration gradient.", "readout": "Flux J = 500 μmol/(m²·s), toward increasing position.", "formula": "J = −D dc/dx", "note": "The profile is imposed and static. Time evolution requires Fick’s second law and boundary conditions.", "software": { "status": "implemented", "label": "Implemented in battery-core", "body": "ficks_first_law_flux evaluates J = −D dc/dx. It does not solve a diffusion PDE, estimate the gradient or apply boundary conditions.", "href": "../transport/ficks-first-law/" }, "html": "
Imposed concentration profile
Imposed concentration profilePosition (μm) versus Concentration (mol/m³). Concentration. Interpretation follows the graphs.00500251,000501,500752,000100Position (μm)Concentration (mol/m³)
Concentration
" } } ] }