The　extraordinarily　high　capacity　exhibited　by　lithium-rich　oxides　has　motivated　intensive　investigations　towards　both　the　cationic　and　anionic　redox　processes.　With　recent　main　focus　on　the　anionic　redox　behavior,　the　anionic　redox　chemistry　has　emerged　as　a　new　orientation　to　pursue　higher-energy　cathodes　for　lithium-ion　batteries.　However,　the　key　practical　issues　such　as　voltage　decay,　voltage　hysteresis,　and　irreversible　oxygen　loss　of　lithium-rich　oxides　have　triggered　researchers　to　act　on　the　ligand　by　designing　novel　lithium-rich　sulfides/selenides.　In　light　of　this,　we　herein　provide　a　timely　and　in-depth　perspective　on　the　development　of　these　lithium-rich　sulfides/selenides　with　various　structures　and　coordinations.　We　highlighted　both　the　variations　of　phases　and　structures,　lithium　storage　mechanism,　detailed　change　of　sulfur/selenide　through　anionic　redox,　and　potentials　for　higher　energy　densities.　We　also　outlined　the　main　academic　and　commercial　obstacles　or　challenges　for　these　Li-rich　sulfides/selenides　for　next-generation　lithium-ion　batteries.　©　2022　The　Royal　Society　of　Chemistry.