相关实验视频

Updated: Jan 7, 2026

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Published on: August 12, 2013

多路 Li+迁移和 In Situ 复合体固态电解质的接口合金使高性能全固态金属电池成为可能

Ying-Ying Zhang¹, Xin-Rui Xiao¹, Hao-Xiang Yin¹

¹The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Advanced Polymer Materials, College of Chemistry, Sichuan University, Chengdu, China.

Small (Weinheim an der Bergstrasse, Germany)

|December 26, 2025

概括

这项研究将多孔甲化物 (BiF) 纳米颗粒引入聚乙烯氧化物 (PEO) 中,以创建复合固态电解质. 这种新型材料增强了界面稳定性和离子导电性,有效地抑制固态电池中的树突.

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
固态电池固态电池是什么

背景情况:

基于聚乙烯氧化物 (PEO) 的电解质在全固态金属电池 (ASSLMB) 中遭受界面不稳定性和树形成.
应对这些挑战对于开发更安全,更高性能的ASSLMB至关重要.

研究的目的:

在PEO矩阵中使用多孔BiF₃纳米颗粒开发一种新的复合固态电解质 (CPE).
为了增强界面稳定性,离子导电性,并抑制ASSLMB中的树突.

主要方法:

通过一步沉方法合成多孔BiF₃纳米颗粒.
将BiF₃纳入PEO以形成一个CPE.
密度函数理论 (DFT) 的计算,以了解Li+运输机制.
电化学测试的LiadoseLi对称细胞和LiadoseLFP/NCM811全细胞.

主要成果:

BiF3纳米粒子促进盐解离,并为Li+运输提供道.
在现场合金反应形成一个稳定的Li_xBi/LiF复合物固体电解质介相 (SEI),抑制树的生长.
二甲对称的细胞在0.1 mA cm-2下实现了超过6000小时的稳定循环.
基LFP和基NCM811全细胞在广泛的温度范围内表现出卓越的电化学性能和稳定性.

结论:

PEO-5%BiF₃CPE表现出增强的界面稳定性和高离子导电性.
开发的CPE有效抑制树突,使长期稳定循环.
该材料显示出在高性能和安全的ASSLMB中实际应用的巨大潜力.

关键词:

比斯木化物纳米填充剂的纳米填充剂复合聚合物电解质的复合物.压制树,抑制树.在现场合金化.金属电池是金属电池的一种.

更多相关视频

Focused Ion Beam Fabrication of LiPON-based Solid-state Lithium-ion Nanobatteries for In Situ Testing

Focused Ion Beam Fabrication of LiPON-based Solid-state Lithium-ion Nanobatteries for In Situ Testing

Published on: March 7, 2018

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques

Published on: November 11, 2013

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...