相关实验视频

Updated: Jul 4, 2025

Zinc-Sponge Battery Electrodes that Suppress Dendrites

Zinc-Sponge Battery Electrodes that Suppress Dendrites

Published on: September 29, 2020

对长寿命Zn阳极的异构添加剂的分子结构工程

Yulong Gao^1,2, Jimin Fu³, Funian Mo⁴

¹School of Materials Science and Engineering, Anhui University, Hefei, 230601, China.

Small (Weinheim an der Bergstrasse, Germany)

|February 8, 2024

概括

曼尼托尔是一种六角性酒精添加剂,通过优化离子溶解结构来改善离子电池阳极稳定性. 这种分子设计提高了电池的寿命和可充电性,优于其他同位素和纯电解质.

科学领域:

电化学电化学电化学
材料科学材料科学材料科学
电池技术电池技术

背景情况:

水性Zn-离子电池中的金属阳极 (ZMA) 遭受着树石的形成和腐蚀,限制了可充电性.
有机添加剂可以调节离子溶解,但选原理,特别是对异构体,尚未得到充分确立.

研究的目的:

为了研究同位素六角醇 (曼尼托,索尔比托,银托) 对Zn2+溶解结构在ZnSO4电解质中的影响.
了解分子结构如何影响在稳定金属阳极中的添加剂性能.

主要方法:

电化学测量 (例如,Zn下载下载Zn对称电池测试) 用于评估电池性能.
用分子模拟来分析Zn2+溶解结构和添加相互作用.
作为电解质添加剂的曼尼托,索尔比托和银托的比较分析.

主要成果:

曼尼托的独特分子结构,与交织的电子云和高局部电子密度,增强Zn2+溶解.
与sorbitol和galactitol相比,曼尼托尔显著提高了阳极/电解质接口的稳定性.
使用曼尼托的对称细胞的寿命为1170小时,远远超过其他异构体和纯电解质 (120小时).

结论:

优化有机添加剂的分子结构,而不仅仅是它们的化学成分,对于提高金属阳极可逆性至关重要.
曼尼托尔为开发优质添加剂提供了一个有希望的战略,以提高水性离子电池的性能和寿命.

关键词:

添加剂添加剂添加剂树状的树状物电解质是一种电解质.它们是同位素的同位素.分子结构分子结构金属阳极是一种金属阳极.

更多相关视频

Extending the Lifespan of Soluble Lead Flow Batteries with a Sodium Acetate Additive

Extending the Lifespan of Soluble Lead Flow Batteries with a Sodium Acetate Additive

Published on: January 7, 2019

Aerosol-assisted Chemical Vapor Deposition of Metal Oxide Structures: Zinc Oxide Rods

Aerosol-assisted Chemical Vapor Deposition of Metal Oxide Structures: Zinc Oxide Rods

Published on: September 14, 2017

相关概念视频

Ziegler–Natta Chain-Growth Polymerization: Overview

Ziegler–Natta Chain-Growth Polymerization: Overview

Ziegler–Natta polymerization is another form of addition or chain‐growth polymerization used for synthesizing linear polymers over branched polymers. The catalyst used for polymerization is the Ziegler–Natta catalyst, named after Karl Ziegler and Giulio Natta, who developed it in 1953. This catalyst is an organometallic complex of titanium tetrachloride and triethyl aluminum, with the active form of the catalyst being an alkyl titanium compound. Using the Ziegler–Natta...

Formation of Complex Ions

Formation of Complex Ions

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...

Standard Electrode Potentials

Standard Electrode Potentials

On comparing the reactivity of silver and lead, it is observed that the two ionic species, Ag+ (aq) and Pb2+ (aq), show a difference in their redox reactivity towards copper: the silver ion undergoes spontaneous reduction, while the lead ion does not. This relative redox activity can be easily quantified in electrochemical cells by a property called cell potential. This property is commonly known as cell voltage in electrochemistry, and it is a measure of the energy which accompanies the charge...

Extraction: Advanced Methods

Extraction: Advanced Methods

Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...