High Voltage Carbon‐Based Cathodes for Non‐Aqueous Aluminium‐Ion Batteries**,ChemElectroChem

当前位置： X-MOL 学术 › ChemElectroChem › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

High Voltage Carbon‐Based Cathodes for Non‐Aqueous Aluminium‐Ion Batteries**
ChemElectroChem ( IF 3.5 ) Pub Date : 2020-12-16 , DOI: 10.1002/celc.202001490
Shalini Divya ₁ , Thomas Nann ₂

Affiliation

Four different forms of carbon: activated carbon (AC) from human hair, AC from hemp fibers, a carbon fullerene extract consisting of C₆₀ and C₇₀ fullerene (CFEx) and Super‐P carbon black were tested and compared as cathodes for non‐aqueous aluminium‐ion batteries (AIBs). These materials differ in their general structure, porosity and morphology. Fullerenes display a crystalline structure, whereas hemp fibers, Super‐P and hair are amorphous in nature. Of all materials, AC obtained from hair recorded the highest specific capacity after 50 cycles at 103 mAh g⁻¹ with a Coulombic efficiency of ∼90 % at a current rate of 50 mA g⁻¹. Both hemp fibers and Super‐P achieved their highest specific capacities at 56 mAh g⁻¹ and 84 mAh g⁻¹ respectively. CFEx recorded its highest capacity at 78 mAh g⁻¹ and maintained it for 50 cycles. The cells were charged and discharged to 2.45 V and 0.2 V respectively.

中文翻译：

非水铝离子电池的高压碳基阴极**

测试了四种不同形式的碳：人发的活性炭（AC），大麻纤维的AC，由C ₆₀和C ₇₀富勒烯（CFEx）组成的富勒烯碳提取物和Super-P炭黑，并将它们作为非水性铝离子电池（AIB）。这些材料的一般结构，孔隙率和形态不同。富勒烯显示出晶体结构，而大麻纤维，Super-P和头发本质上是无定形的。在所有材料中，从头发获得的交流电在103 mAh g ^-1的电流下经过50次循环后，在50 mA g ^-1的电流速率下库仑效率约为90％，具有最高的比容量。麻纤维和Super-P均达到了56 mAh g ^-1的最高比容量和84 mAh g ^-1。CFEx记录了其最高容量，为78 mAh g ^-1，并保持了50个循环。电池分别充电和放电至2.45 V和0.2V。

更新日期：2021-02-01

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11