相关实验视频

Updated: Jun 13, 2025

Preparation of Graphene Liquid Cells for the Observation of Lithium-ion Battery Material

Preparation of Graphene Liquid Cells for the Observation of Lithium-ion Battery Material

Published on: February 5, 2019

硫修饰对/离子电池基碳材料结构和电化学性能的影响

Zihui Ma¹, Zhe Wen^1,2, Yan Song^1,3

¹CAS Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China.

Nanomaterials (Basel, Switzerland)

|September 13, 2024

概括

硫化基碳 (SPC-800) 提高了离子电池 (LIB) 和离子电池 (SIB) 的阳极性能. 这种无序的碳材料提供了优越的特定容量,指导了先进电池阳极的发展.

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:

煤焦油 (CTP) 由于其特性,是电池阳极的成本效益高的碳前体.
开发用于离子电池 (LIB) 和离子电池 (SIB) 的高性能阳极对于储能进步至关重要.

研究的目的:

来自CTP的硫化基碳 (SPC-800) 的合成和特征.
评估SPC-800作为LIB和SIB的阳极材料的电化学性能.

主要方法:

煤焦油在350°C时与硫反应,然后在800°C时碳化,产生SPC-800.
结构分析比较SPC-800与碳化的CTP (PC-800).
在LIB和SIB中作为阳极的SPC-800的电化学测试.

主要成果:

与PC-800相比,SPC-800具有更混乱的结构和更大的层间距.
作为一个LIB阳极,SPC-800在0.1 A g-1.1时实现了478.1 mAh g-1的可逆特异容量.
作为SIB阳极,SPC-800在20 mA g-1.1下提供220.9 mAh g-1的容量.

结论:

硫化和碳化CTP为下一代电池创造了有效的阳极材料.
SPC-800显示出作为LIB和SIB的高性能阳极的潜力.
这项研究为设计使用修改CTP的先进电池阳极提供了途径.

关键词:

煤炭焦油油,煤炭焦油油.离子电池的离子电池是什么离子电池离子电池硫化砂是一种硫化砂.

更多相关视频

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

The Effect of Charging and Discharging Lithium Iron Phosphate-graphite Cells at Different Temperatures on Degradation

The Effect of Charging and Discharging Lithium Iron Phosphate-graphite Cells at Different Temperatures on Degradation

Published on: July 18, 2018

相关概念视频

Electrophilic Aromatic Substitution: Sulfonation of Benzene

Electrophilic Aromatic Substitution: Sulfonation of Benzene

Sulfonation of benzene is a reaction wherein benzene is treated with fuming sulfuric acid at room temperature to produce benzenesulfonic acid. Fuming sulfuric acid is a mixture of sulfur trioxide and concentrated sulfuric acid.

Preparation and Reactions of Sulfides

Preparation and Reactions of Sulfides

Sulfides are the sulfur analog of ethers, just as thiols are the sulfur analog of alcohol. Like ethers, sulfides also consist of two hydrocarbon groups bonded to the central sulfur atom. Depending upon the type of groups present, sulfides can be symmetrical or asymmetrical. Symmetrical sulfides can be prepared via an SN2 reaction between 2 equivalents of an alkyl halide and one equivalent of sodium sulfide.

Structure and Nomenclature of Thiols and Sulfides

Structure and Nomenclature of Thiols and Sulfides

Thiols and sulfides are sulfur analogs of alcohols and ethers, respectively, where the sulfur atom takes the place of the oxygen atom. Thus, thiols are generally represented as RSH, where R is an alkyl substituent and —SH is the functional group. On the other hand, in sulfides, the central sulfur atom is bonded to two hydrocarbon groups on either side. Depending upon the type of group, sulfides can be either symmetrical or asymmetrical. Both thiols and sulfides display a bent geometry,...