Hybrid Interfacial Modulation for Stabilizing Anode‐Less Lithium‐Sulfur Batteries: Guided Lithium Nucleation and Polysulfide Regulation
Year: 2025
Type: article
Abstract: Anode‐less lithium‐sulfur (Li‐S) batteries offer a promising route to high energy density and cost‐effective energy storage, yet suffer from unstable Li deposition and polysulfide crossover at the current collector interface. Here, we introduce a hybrid interfacial modulation layer (HIML) designed to simultaneously regulate dendrite‐free Li deposition behavior and block polysulfide migration. The HIML consists of lithiophilic Au nano seeds coated with a porous ionic‐selective overlayer, enabling guided, uniform Li nucleation and selective Li + transport. When applied to an anode‐less Li‐S full cell with a Li 2 S cathode, the HIML‐enabled current collector achieves an initial charge capacity of 1272 mAh g −1 , a Coulombic efficiency of 95.7%, and a low polarization of 0.14 V. The HIML‐introduced full cell exposes a high energy density of 389 Wh kg −1 , indicating a notably higher value among the reported Li 2 S‐based Li metal batteries. These findings demonstrate that HIML offers a robust and scalable strategy for stabilizing Li plating interfaces, paving the way toward practical, high‐performance anode‐less Li‐S batteries.
Source: Small Methods
Institutions: Gyeongsang National University, Utrecht University
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
Awards: G2919192887, G403591880
OpenAlex ID: W4413836080