Research Digest — 2026-08-23¶
Solid-State Batteries: Electrolytes & Interfaces¶
1. A mechano-integrated gradient electrolyte for long-cycling solid-state lithium metal batteries¶
Source: Unknown · 📅 · ↗ Open paper
Introduces a gradient composite solid electrolyte combining a deformable, viscoelastic PEO-based layer against lithium metal with a dense ceramic-rich barrier layer facing the high-voltage cathode. The mechano-integrated design maintains conformal contact through repeated plating/stripping while resisting oxidation and transition-metal dissolution, enabling long cycling without the >10 MPa stack pressures typical of inorganic-only cells. The architecture is compatible with scalable roll-to-roll manufacturing.
Relevance to DENG.Group
Directly relevant to Naibing's polymer/composite simulation work — the graded-filler design philosophy (high loading, graded mechanics) is a prime target for MD-scale mechanistic studies of filler-chain coupling. Also relevant to Umang's interface theme: asymmetric requirements at anode vs cathode interfaces.
2. Deciphering Key Features Determining Electrochemical Performance of Halide Solid-State Electrolytes¶
Source: Unknown · 📅 · ↗ Open paper
Systematic study identifying the key structural and compositional descriptors that govern the electrochemical behavior of halide solid-state electrolytes in all-solid-state batteries. Correlates ionic conductivity, oxidative stability, and interface compatibility across halide chemistries to extract design rules. Provides a feature-based framework for screening candidate halide compositions.
Relevance to DENG.Group
Core territory for Yan Li and Mengke Li (halide electrolyte degradation and transport). The structure-performance descriptors here could serve as validation targets or design hypotheses for their simulations of halide transport mechanisms.
3. A moisture stable high-entropy halide electrolyte with enhanced ionic conductivity¶
Source: Unknown · 📅 · ↗ Open paper
Reports a high-entropy halide solid electrolyte that achieves improved moisture stability without sacrificing ionic conductivity. Configurational disorder across multiple cation sublattices suppresses the hydrolysis pathways that plague conventional halide electrolytes. Offers a new compositional strategy (entropy engineering) rather than coating-based protection for moisture tolerance.
Relevance to DENG.Group
Highly relevant to Yan Li's atmospheric degradation simulation work on halides — high-entropy compositions present a natural modeling target since configurational disorder is where ML potentials and sampling methods shine. Mengke Li's transport studies could also extend to disorder-driven conductivity effects.
4. Enhanced Li+ transport in PEO/oxide-particle composite polymer electrolytes: a molecular dynamics study¶
Source: Unknown · 📅 · ↗ Open paper
Uses molecular dynamics simulations to systematically elucidate how filler identity and PEO chain length control Li+ transport in composite polymer electrolytes. Dissects the core mechanisms by which oxide fillers modify segmental dynamics, Lewis-acid/base interactions, and percolating transport pathways at the polymer-ceramic interface. Provides mechanistic guidance for filler selection and loading optimization.
Relevance to DENG.Group
Overlaps almost exactly with Naibing Wu's project on solid polymer electrolyte and composite simulation — this is the closest competitor work in this digest. Worth him reading closely both for the methodology and to position his own results on filler/chain-length effects.