相关实验视频

Updated: Jun 21, 2025

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Published on: December 20, 2016

调节界面化学,使高功率双离子电池在低温度下使用成为可能

Jihui Lang¹, Yuhan Liu^1,2, Qirong Liu²

¹Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping, 136000, China.

Small (Weinheim an der Bergstrasse, Germany)

|July 10, 2024

概括

研究人员开发了一种能级适应性电解质策略,以增强低温双离子电池 (DIB). 这种方法改善了接口化学,使得稳定的运行和在极寒条件下高速的性能成为先进的能量存储.

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:

接口化学对于低温可充电电池的性能至关重要.
现有的接口工程面临着诸如电压下降和低温下不良高速放电等挑战.

研究的目的:

提出一种能级适应性电解质设计策略,用于调节低温酸石墨双离子电池 (DIB) 的接口化学.
为提高电池性能,构建具有卓越的离子转移动力学的强大的接口.

主要方法:

开发了一个能级适应电解质设计策略.
在石墨阴极上设计了溶剂/离子合的界面化学.
在金属阳极上促进了离子衍生界面化学.

主要成果:

在阴极上创建了含有N/P/S/F的有机丰富的间相,促进了离子转移和稳定性.
在阳极上形成了一个无机主导的富含LiF的介相,抑制树突,改善Li/剥离.
实现了广泛的操作温度范围 (-40至45°C).
在低温下表现出卓越的性能:在-40°C (1°C) 保持97.4%的容量,在10°C保持62.3%.

结论:

拟议的策略使得具有优越的离子动力学的强大的相间构造成为可能.
设计的DIB在广泛的温度范围内表现出卓越的电化学性能.
这项工作为开发高功率,低温可充电电池提供了可行的方法.

关键词:

双离子电池双离子电池适应能源水平的设计设计.高功率的高功率的高功率.界面化学界面化学低温低温的低温是一个问题.

更多相关视频

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

$In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries$ 11:25

In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries

Published on: November 10, 2014

相关概念视频

Interfacial Electrochemical Methods: Overview

Interfacial Electrochemical Methods: Overview

Interfacial electrochemical methods focus on the phenomena occurring at the boundary between an electrode and a solution, as opposed to bulk methods that concentrate on the solution's overall properties. These interfacial methods are classified as either static or dynamic based on the presence of a nonzero current in the electrochemical cell and the consistency of analyte concentrations. Static methods, such as potentiometry, measure the cell's potential without any significant current...

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...