通过使用大语言模型的数据驱动框架,解开固态电池中二元化物电解质的复杂性
Qian Wang1,2, Fangling Yang1, Yuhang Wang1
1Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai, 980-8577, Japan.
Angewandte Chemie (International ed. in English)
|April 17, 2025
概括
研究人员开发了一个人工智能框架,以发现用于电池的新固态电解质 (SSEs). 这种方法加快了对具有新离子迁移机制的有前途的化物SSEs的识别,以改善能量存储.
科学领域:
- 材料科学 材料科学 材料科学
- 计算化学计算化学
- 储能 储能 储能 储能 储能 储能
背景情况:
- 固态电解质 (SSEs) 对于先进的能量存储至关重要,但发现高效的化物SSEs是具有挑战性的.
- 目前的方法依赖于低效的试错方法,并与复杂的离子迁移机制作斗争.
研究的目的:
- 用数据驱动的人工智能框架加速发现新型化物固态电解质.
- 通过整合大规模数据和先进的模拟来克服传统方法的局限性.
主要方法:
- 开发了一个AI框架,结合了全面的SSE数据库,大型语言模型和ab initio元动力学 (MetaD) 模拟.
- 利用实验和计算数据构建离子迁移激活能量的预测模型.
主要成果:
- 确定了含中性分子的化物SSE,作为非常有前途的候选者.
- 使用MetaD模拟在化物中发现了新的"两步"离子迁移机制.
- 开发了准确预测激活能量的预测模型,其中一些SSE显示屏障低至0.62 eV.
结论:
- 人工智能框架可以快速识别优化的SSE候选人,以实现可持续的能源储存.
- 这种方法代表了推动固态电解质领域的变革性工具.
- 含碳中性分子的化物SSEs显示出低激活能的显著潜力.
更多相关视频
11:04Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
Published on: December 20, 2016
12.9K
07:55Elemental-sensitive Detection of the Chemistry in Batteries through Soft X-ray Absorption Spectroscopy and Resonant Inelastic X-ray Scattering
Published on: April 17, 2018
12.6K
相关概念视频
Ionic Bonding and Electron Transfer
39.2K
Ions are atoms or molecules bearing an electrical charge. A cation (a positive ion) forms when a neutral atom loses one or more electrons from its valence shell, and an anion (a negative ion) forms when a neutral atom gains one or more electrons in its valence shell. Compounds composed of ions are called ionic compounds (or salts), and their constituent ions are held together by ionic bonds: electrostatic forces of attraction between oppositely charged cations and anions.
39.2K
Batteries and Fuel Cells
26.7K
A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
26.7K
Trends in Lattice Energy: Ion Size and Charge
23.5K
An ionic compound is stable because of the electrostatic attraction between its positive and negative ions. The lattice energy of a compound is a measure of the strength of this attraction. The lattice energy (ΔHlattice) of an ionic compound is defined as the energy required to separate one mole of the solid into its component gaseous ions. For the ionic solid sodium chloride, the lattice energy is the enthalpy change of the process:
23.5K
Formation of Complex Ions
23.0K
A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
23.0K
Electrolysis
25.7K
In a galvanic cell, the electrical work is done by a redox system on its surroundings as electrons produced by the spontaneous redox reactions are transferred through an external circuit. Alternatively, an external circuit does work on a redox system by imposing a voltage sufficient to drive an otherwise nonspontaneous reaction in a process known as electrolysis. For instance, recharging a battery involves the use of an external power source to drive the spontaneous (discharge) cell reaction in...
25.7K
Molecular and Ionic Solids
16.5K
Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
16.5K
