scholarly journals Accelerated Atomistic Modeling of Solid-State Battery Materials With Machine Learning

2021 ◽  
Vol 9 ◽  
Author(s):  
Haoyue Guo ◽  
Qian Wang ◽  
Annika Stuke ◽  
Alexander Urban ◽  
Nongnuch Artrith

Materials for solid-state batteries often exhibit complex chemical compositions, defects, and disorder, making both experimental characterization and direct modeling with first principles methods challenging. Machine learning (ML) has proven versatile for accelerating or circumventing first-principles calculations, thereby facilitating the modeling of materials properties that are otherwise hard to access. ML potentials trained on accurate first principles data enable computationally efficient linear-scaling atomistic simulations with an accuracy close to the reference method. ML-based property-prediction and inverse design techniques are powerful for the computational search for new materials. Here, we give an overview of recent methodological advancements of ML techniques for atomic-scale modeling and materials design. We review applications to materials for solid-state batteries, including electrodes, solid electrolytes, coatings, and the complex interfaces involved.

2019 ◽  
Vol 73 (12) ◽  
pp. 972-982 ◽  
Author(s):  
Félix Musil ◽  
Michele Ceriotti

Statistical learning algorithms are finding more and more applications in science and technology. Atomic-scale modeling is no exception, with machine learning becoming commonplace as a tool to predict energy, forces and properties of molecules and condensed-phase systems. This short review summarizes recent progress in the field, focusing in particular on the problem of representing an atomic configuration in a mathematically robust and computationally efficient way. We also discuss some of the regression algorithms that have been used to construct surrogate models of atomic-scale properties. We then show examples of how the optimization of the machine-learning models can both incorporate and reveal insights onto the physical phenomena that underlie structure–property relations.


2018 ◽  
Vol 140 (22) ◽  
pp. 7044-7044 ◽  
Author(s):  
James A. Dawson ◽  
Pieremanuele Canepa ◽  
Theodosios Famprikis ◽  
Christian Masquelier ◽  
M. Saiful Islam

2021 ◽  
Author(s):  
Chang Liu ◽  
Erina Fujita ◽  
Yukari Katsura ◽  
Yuki Inada ◽  
Asuka Ishikawa ◽  
...  

Abstract Quasicrystals have emerged as a new class of solid-state materials that have long-range order without periodicity, exhibiting rotational symmetries that are disallowed for periodic crystals in most cases. To date, hundreds of new quasicrystals have been found, leading to the discovery of many new and exciting phenomena. However, the pace of the discovery of new quasicrystals has slowed in recent years, largely owing to the lack of clear guiding principles for the synthesis of new quasicrystals. Here, we show that the discovery of new quasicrystals can be accelerated with a simple machine learning workflow. With a list of the chemical compositions of known quasicrystals, approximant crystals, and ordinary crystals, we trained a prediction model to solve the three-class classification task and evaluated its predictability compared to the observed phase diagrams of ternary aluminum systems. The validation experiments strongly support the superior predictive power of machine learning, with the precision and recall of the phase prediction task reaching approximately 0.793 and 0.714, respectively. Furthermore, analyzing the input--output relationships black-boxed into the model, we identified nontrivial empirical equations interpretable by humans that describe conditions necessary for quasicrystal formation.


Author(s):  
Randy Jalem ◽  
Bo Gao ◽  
Hong-Kang Tian ◽  
Yoshitaka Tateyama

We report a comprehensive first-principles DFT study on (electro)chemical stability, intrinsic defects, and ionic conductivity improvement by halide doping of Na3SbS4 electrolyte for all-solid-state Na batteries.


Author(s):  
Yuran Yu ◽  
Zhuo Wang ◽  
Guosheng Shao

Lithium-metal-halides (LMX) are getting more and more attractive as a potential class of solid-state electrolytes (SSE) to enable high-performance all solid-state batteries (ASSBs), owing to their high oxidation potentials, good...


Author(s):  
Yuanyuan Huang ◽  
Yuran Yu ◽  
Hongjie Xu ◽  
Xiangdan Zhang ◽  
Zhuo Wang ◽  
...  

The Halide solid-state electrolytes (SSEs) have attracted great attention as potential electrolyte for all solid-state batteries (ASSBs) owing to their high oxidation potentials, excellent ductility, and good resilience to humidity....


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