相关实验视频

Updated: Mar 7, 2026

Screening of Coatings for an All-Solid-State Battery Using In Situ Transmission Electron Microscopy

Screening of Coatings for an All-Solid-State Battery Using In Situ Transmission Electron Microscopy

Published on: January 20, 2023

对固态电池的自我愈合能力的机械洞察: PEO-TiO接口的作用

Federico Piciacchia¹, Sergio Tosoni¹, Livia Giordano¹

¹Department of Materials Science, University of Milano-Bicocca, via Roberto Cozzi 55, Milan, Italy. sergio.tosoni@unimib.it.

Physical chemistry chemical physics : PCCP

|March 6, 2026

概括

固态电池面临着状物问题. 这项研究揭示了 (TiO2) 上的聚乙烯氧化物 (PEO) 化学稳定了,可能通过在接口上的协调和氧化来治愈树突.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
计算化学的计算化学

背景情况:

树状石的形成限制了固态电池 (SSLB) 的使用寿命.
复合电解质与功能化titania显示有希望的自我愈合行为.

研究的目的:

研究与聚乙烯氧化物 (PEO) 移植的解剖酶TiO2表面的相互作用.
阐明复合电解质中自我愈合背后的机制.
了解PEO/TiO2纳米结构在树减轻中的作用.

主要方法:

第一个原则是计算分析.
模拟与PEO/TiO2接口的相互作用.
分析电子结构和Li+协调.

主要成果:

在PEO/TiO2界面上强烈稳定物种.
识别具有高Li + 离子协调能力的氧气位点.
TiO2的可还原性使得电子在Ti{3d) 状态中容易存储,有助于Li的稳定.
有证据表明,化学过程涉及聚合物/氧化物界面的协调和氧化.

结论:

在PEO/TiO2复合电解质中的自我愈合机制不仅涉及机械效应.
化学过程,包括的协调和氧化,在石溶解中起着至关重要的作用.
PEO/TiO2纳米结构为提高SSLB稳定性和寿命提供了一个有希望的策略.

更多相关视频

Failure Analysis of Batteries Using Synchrotron-based Hard X-ray Microtomography

Failure Analysis of Batteries Using Synchrotron-based Hard X-ray Microtomography

Published on: August 26, 2015

Identification and Quantification of Decomposition Mechanisms in Lithium-Ion Batteries; Input to Heat Flow Simulation for Modeling Thermal Runaway

Identification and Quantification of Decomposition Mechanisms in Lithium-Ion Batteries; Input to Heat Flow Simulation for Modeling Thermal Runaway

Published on: March 7, 2022

相关概念视频

Batteries and Fuel Cells

Batteries and Fuel Cells

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...