biostudies-literatureYan WNational Natural Science Foundation Committee of ChinaNational Key R & D Program of ChinaKey Technology Research and Development Program of ShandongState Key Lab Research FoundationPostgraduate Research & Practice Innovation Program of Jiangsu ProvinceGraduate Research and Innovation Projects of Jiangsu ProvinceNatural Science Foundation of Jiangsu Provincee2202204https://www.ebi.ac.uk/biostudies/studies/S-EPMC9443453biostudies-literatureUnknown9(25)Lithium-sulfur batteries (LSBs) with extremely-high theoretical energy density (2600 Wh kg^-1 ) are deemed to be the most likely energy storage system to be commercialized. However, the polysulfides shuttling and lithium (Li) metal anode failure in LSBs limit its further commercialization. Herein, a versatile asymmetric separator and a Li-rich lithium-magnesium (Li-Mg) alloy anode are applied in LSBs. The asymmetric separator is consisted of lithiated-sulfonated porous organic polymer (SPOP-Li) and Li_6.75 La₃ Zr_1.75 Nb_0.25 O₁₂ (LLZNO) layers toward the cathode and anode, respectively. SPOP-Li serves as a polysulfides barrier and Li-ion conductor, while the LLZNO functions as an "ion redistributor". Combining with a stable Li-Advanced science (Weinheim, Baden-Wurttemberg, Germany)Versatile Asymmetric Separator with Dendrite-Free Alloy Anode Enables High-Performance Li-S Batteries.PMC9443453BK20200768ZK201717ZK201805KYCX20_1072BK2020069620KJB4300195142530152073143521313062021YFB2400400Zhao JWZhu YWang TFu LChen YWang ZYan WWu YYang JLXiong XfalseVersatile Asymmetric Separator with Dendrite-Free Alloy Anode Enables High-Performance Li-S Batteries.Lithium-sulfur batteries (LSBs) with extremely-high theoretical energy density (2600 Wh kg^-1 ) are deemed to be the most likely energy storage system to be commercialized. However, the polysulfides shuttling and lithium (Li) metal anode failure in LSBs limit its further commercialization. Herein, a versatile asymmetric separator and a Li-rich lithium-magnesium (Li-Mg) alloy anode are applied in LSBs. The asymmetric separator is consisted of lithiated-sulfonated porous organic polymer (SPOP-Li) and Li_6.75 La₃ Zr_1.75 Nb_0.25 O₁₂ (LLZNO) layers toward the cathode and anode, respectively. SPOP-Li serves as a polysulfides barrier and Li-ion conductor, while the LLZNO functions as an "ion redistributor". Combining with a stable Li-2022-01-01T00:00:00Z2022 Sep2025-04-20T00:38:54.2Z2025-04-20T00:38:54.2ZS-EPMC94434533574819210.1002/advs.202202204