相关实验视频

Updated: May 29, 2025

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

一个长寿命的-单流电池,使用三甲基硫酸作为复合剂

Ming Zhao^1,2, Tao Cheng^1,2, Tianyu Li^1,3

¹Division of Energy Storage, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.

|February 4, 2025

概括

三甲基硫酸 (TMSO) 显著延长水性-单流电池 (ZBSFBs) 的使用寿命. 这种新型复合剂可以将循环寿命提高到1500个循环,克服了ZBSFB商业化的一个关键障碍.

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
储能储能储能储能储能储能

背景情况:

水性-单流电池 (ZBSFBs) 由于安全性和成本优势,为电网规模的能源存储提供了潜力.
由于活性物质不平衡,循环寿命有限,阻碍了ZBSFBs的商业可行性.
复合剂对于管理活跃物种和提高电池性能至关重要.

研究的目的:

引入三甲基硫酸 (TMSO) 作为一种新型复合剂,用于ZBSFBs.
调查TMSO增强ZBSFBs循环寿命和效率的机制.
为了比较TMSO的性能与传统的复合剂,如N-乙烯-N-甲基-基化物 (MEP).

主要方法:

三甲基硫黄化物 (TMSO) 的合成和表征.
使用TMSO作为复合剂对ZBSFB进行电化学测试.
电池性能指标的比较分析,包括循环寿命和能源效率与基于MEP的ZBSFB相比.
用光谱或分析技术研究的物种化和积累.

主要成果:

通过与水分子强烈相互作用,TMSO有效地抑制了进化反应.
与TMSO相比,与MEP相比,在阴极上减少了积累.
使用TMSO的ZBSFB实现了显著更长的周期寿命1500个周期.
基于TMSO的ZBSFB的平均能效 (EE) 达到了大约81.6%,超过了基于MEP的电池 (≈80.2%EE,<300个循环).

结论:

三甲基硫化物 (TMSO) 是一种高效的基于硫的复合剂,用于水性-单流电池.
通过减轻活性物质失衡和抑制副作用,TMSO显著提高了ZBSFB的运行寿命和能源效率.
本研究提出了一个可行的策略,用于开发下一代ZBSFB,以延长分布式能源存储应用的循环寿命.

关键词:

积累积累的.复合剂是一种复合剂.三甲基硫BrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrbrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBrBr -单流电池是一种单流电池.

更多相关视频

A Protocol for Electrochemical Evaluations and State of Charge Diagnostics of a Symmetric Organic Redox Flow Battery

A Protocol for Electrochemical Evaluations and State of Charge Diagnostics of a Symmetric Organic Redox Flow Battery

Published on: February 13, 2017

Zinc-Sponge Battery Electrodes that Suppress Dendrites

Zinc-Sponge Battery Electrodes that Suppress Dendrites

Published on: September 29, 2020

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...

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...