相关实验视频

Updated: Jul 12, 2026

Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis

Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis

Published on: January 6, 2016

耐损坏和自我修复的网状酸类型结合器使高效的Si基阳极能够稳定运行

Zhuoying Wu¹, Yongqun Ma¹, Siying Li¹

¹College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China.

Small (Weinheim an der Bergstrasse, Germany)

|May 20, 2024

概括

一种新型的自我修复的酸粘合剂通过分配应力和改善离子传输来提高阳极性能. 这种绑定器设计为持久,高性能储能解决方案提供了一个简单的策略.

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
储能储能储能储能储能储能

背景情况:

基于 (Si) 的阳极对高容量储能充满希望.
仍然存在重大挑战,包括由于体积膨胀和缓慢的离子 (Li+) 扩散而导致的机械降解.
现有的粘合剂设计很难有效地解决这些问题.

研究的目的:

设计和合成一种用于Si和一氧化 (SiO) 电极的新型水性自我修复酸盐型粘合剂 (SBG).
研究粘合剂独特的网状结构及其对电极机械性能和离子导电性的影响.
为了提高基于Si的阳极的电化学性能和耐用性.

主要方法:

合成3D网状酸盐类型结合剂 (SBG),使用动态共价和离子导电性乙烯键.
结合剂的结构性,机械性和离子导电性质的表征.
在离子电池中使用SBG结合剂的Si和SiO电极的电化学测试.

主要成果:

该SBG粘合器展示了一个3D网状架构,均地分配应力和自我修复机械损坏,提高电极耐受性.
结合剂中的四坐标离子显著提高了Li+运输动力学.
带有SBG粘合剂的电极显示出更好的电化学性能和稳定性.

结论:

开发的SBG结合剂有效地解决了基于Si的阳极中的机械损伤和差离子扩散问题.
基于动态化学的简单,多功能粘合剂设计策略为下一代电池材料提供了宝贵的见解.
这种方法为制造高性能和持久的Si基阳极铺平了道路.

关键词:

的化学成分化学离子导电性的离子导电性.多功能绑定器多功能绑定器自己修复的自我修复.阳极是一种阳极.

更多相关视频

Non-aqueous Electrode Processing and Construction of Lithium-ion Coin Cells

Non-aqueous Electrode Processing and Construction of Lithium-ion Coin Cells

Published on: February 1, 2016

Chemical Synthesis of Porous Barium Titanate Thin Film and Thermal Stabilization of Ferroelectric Phase by Porosity-Induced Strain

Chemical Synthesis of Porous Barium Titanate Thin Film and Thermal Stabilization of Ferroelectric Phase by Porosity-Induced Strain

Published on: March 27, 2018

相关概念视频

P-N junction

P-N junction

A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...

Diode: Forward bias

Diode: Forward bias

In semiconductor devices, diodes play a crucial role in directing current flow, and its operation is primarily categorized into forward bias and reverse bias. A diode is said to be forward-biased when its p-type region is connected to the positive terminal of a battery and its n-type region is linked to the negative terminal. This configuration reduces the potential barrier within the diode, allowing current to flow easily from the p to the n-type region.
The behavior of a diode in forward bias...

Diode: Reverse bias

Diode: Reverse bias

A diode is reverse-biased when the positive terminal of an external voltage source is connected to the n-type material and the negative terminal to the p-type material. This configuration opposes the natural direction of current flow through the diode, effectively increasing the width of the depletion region and the barrier potential. The reverse bias condition produces a minimal leakage current, primarily due to minority charge carriers. This leakage becomes significant when the reverse...

Schottky Barrier Diode

Schottky Barrier Diode

Schottky barrier diodes are specialized semiconductor devices characterized by their unique construction. This construction involves combining a metal layer with a moderately doped n-type semiconductor material. This combination leads to the formation of a Schottky barrier, a pivotal element that defines the diode's operational characteristics. The core functionality of Schottky barrier diodes is their capacity to allow current to flow in only one direction due to their distinctive...