Research Digest — 2026-07-03¶
Halide Solid Electrolytes¶
1. Challenges of the infiltration method for halide-based solid-state battery cathodes¶
Source: Scientific Reports (s41598-026-47289-w) · 📅 2026-06-15 · ↗ Open paper
Experimental study examining the infiltration method for halide SE cathode fabrication in SSBs. Compares sulfide (Li6PS5Cl) and halide (Li3YCl6, Li3InCl6) electrolytes for cathode/electrolyte contact optimization, highlighting that processability constraints differ significantly between SE classes and that mechanical mixing quality strongly influences interfacial contact with NCM cathodes.
Relevance to DENG.Group
Useful for Mengke Li's transport studies — the infiltration processing data constrains realistic interface models. The sulfide vs. halide processing comparison is directly relevant to the group's multi-class SE strategy.
2. A moisture-stable high-entropy halide electrolyte with performance recovery upon annealing¶
Source: Materials Horizons (d6mh00223d) · 📅 2026-06-10 · ↗ Open paper
Reports a high-entropy halide solid electrolyte (HE-25) that maintains moisture stability and exhibits remarkable ionic conductivity recovery after moisture exposure — nearly full recovery upon mild annealing at 150°C. The high-entropy strategy stabilizes the structure against hydrolysis while preserving fast ion transport pathways.
Relevance to DENG.Group
High-entropy halide design is an emerging strategy the group could explore computationally. Moisture stability mechanisms are relevant to Yan Li's degradation studies — the entropy-stabilization approach offers a new design principle.
3. From Promise to Production: Strategic Roadmap for Halide-Based All-Solid-State Battery Pilot Lines¶
Source: Advanced Energy Materials · 📅 2026-06-05 · ↗ Open paper
A strategic perspective charting the development of halide-based ASSB pilot lines. Highlights how halide electrolytes bridge the gap between lab research and manufacturing, addressing scale-up challenges in electrode processing, electrolyte film fabrication, and cell assembly. Provides techno-economic analysis comparing halide, sulfide, and oxide pathways.
Relevance to DENG.Group
Important context for the group's halide program strategy. The techno-economic analysis and pilot-line roadmap helps position academic simulation work within the broader commercialization landscape.
4. Redox-active halide solid electrolytes for stable high-energy all-solid-state batteries¶
Source: LBNL Technology Portal (Nature Chemistry) · 📅 2026-02-09 · ↗ Open paper
Introduces a new class of redox-active halide solid electrolytes that use controlled redox reactions ('dynamic stability') to extend their electrochemical stability window. This approach decouples the traditional trade-off between ionic conductivity and oxidative stability, enabling compatibility with high-voltage cathodes.
Relevance to DENG.Group
The 'dynamic stability' concept is a paradigm shift relevant to Yan Li and Mengke Li's halide work. Simulating redox-active mechanisms in halides could open a new research direction for the group.
ML Interatomic Potentials¶
5. An accurate charge-aware machine-learning interatomic potential for reduction of Li-ion battery electrolytes in solution¶
Source: ChemRxiv · 📅 2026-02-10 · ↗ Open paper
Presents a charge-aware MLIP that captures redox chemistry and electron transfer in Li-ion battery liquid electrolytes. The model predicts decomposition pathways and reduction potentials of solvent molecules in solution, demonstrating that explicit charge equilibration is essential for modeling electrochemically active interfaces.
Relevance to DENG.Group
While focused on liquid electrolytes, the charge-aware architecture concept is transferable to solid electrolyte interface modeling. Relevant to Yanhao Deng's work — incorporating charge awareness into solid-state MLIPs could improve interface reactivity predictions.
6. Li-argyrodite sulfide solid electrolytes: From fundamental research to commercial applications¶
Source: Joule (Cell Press) · 📅 2026-06-20 · ↗ Open paper
Systematic review of Li-argyrodite (Li6PS5X) sulfide SEs covering ion-transport mechanisms, synthesis strategies, and air stability improvement. Traces the path from fundamental understanding to commercial deployment, identifying key bottlenecks in moisture sensitivity and scale-up processing.
Relevance to DENG.Group
Provides baseline data for sulfide SE comparison studies. Relevant for contextualizing the group's halide-focused work against the more mature sulfide literature.
7. Modeling and simulation approaches for solid-state battery interfaces¶
Source: Dalton Transactions (RSC) · 📅 2026-05-15 · ↗ Open paper
Reviews atomic and mesoscale simulation techniques for SSB interfaces, covering DFT, MD, phase-field, and continuum methods. Discusses how multi-scale modeling addresses interfacial challenges including mechanical degradation, chemical instability, and ion transport barriers at cathode/SE and anode/SE boundaries.
Relevance to DENG.Group
Directly relevant to the group's multi-scale simulation portfolio. The methods review spans the same length/time scales the group operates across — from Yanhao's atomistic MLIPs to Shoutong Jin's phase-field dendrite work.
Solid-State Battery Interfaces and Dendrites¶
8. Halide-based materials and interfacial chemistry for solid-state batteries: A comprehensive review¶
Source: Materials Science & Engineering R · 📅 2026-06-10 · ↗ Open paper
Comprehensive review of inorganic halide solid electrolytes for Li and Na solid-state batteries, focusing on interfacial chemistry. Covers cathode/halide and anode/halide interface stability, interphase formation mechanisms, and strategies for interfacial engineering including coating and compositional tuning.
Relevance to DENG.Group
Core reference for the group's halide program. The interfacial chemistry framework directly informs Umang Agarwal's interface studies and Yan Li's degradation simulations.
9. In situ polymerization for high-performance solid-state lithium-sulfur batteries¶
Source: Nature Communications · 📅 2026-06-03 · ↗ Open paper
Demonstrates in situ polymerization to form integrated polymer/ceramic composite electrolytes for Li-S batteries. The in-situ formed interface eliminates voids and reduces interfacial resistance, achieving high ionic conductivity and stable cycling with suppressed polysulfide shuttling.
Relevance to DENG.Group
Relevant to Naibing Wu's polymer electrolyte and composite simulation work. The in-situ interface engineering concept offers a model system for simulating polymer/ceramic boundary effects on ion transport.
10. Phase-field simulation of lithium dendrite growth in solid-state batteries with multi-directional coupling¶
Source: Acta Physica Sinica · 📅 2026-04-20 · ↗ Open paper
Develops a 2D phase-field model for Li dendrite growth in SSBs with multi-directional coupling between electrochemical, mechanical, and thermal fields. Simulates growth morphology under varying current densities and SE mechanical properties, identifying critical conditions for dendrite penetration.
Relevance to DENG.Group
Directly relevant to Shoutong Jin's phase-field dendrite work. The multi-directional coupling approach and penetration criteria provide methodological benchmarks for comparison.