An Aqueous Rechargeable Al-Ion Battery Based on Cobalt Hexacyanoferrate and Al Metal

被引：21

作者：

Yuan, Xinhai ^{[1
]}

Yuan, Xuelong ^{[1
]}

Zhang, Shuaishuai ^{[1
]}

Chen, Peng ^{[2
]}

Wu, Xiongwei ^{[3
]}

Ye, Jilei ^{[1
]}

Liu, Lili ^{[1
]}

Fu, Lijun ^{[1
]}

Wang, Tao ^{[4
]}

Ozoemena, Kenneth I. ^{[5
]}

Wu, Yuping ^{[1
,4
]}

机构：

[1] Nanjing Tech Univ, Coll Chem Engn, Sch Energy Sci & Engn, State Key Lab Mat Oriented Chem Engn, Nanjing 211816, Jiangsu, Peoples R China

[2] Northeastern Univ, Minist Educ, Key Lab Ecol Met Multimet Minerals, Sch Met, Shenyang 110819, Peoples R China

[3] Hunan Agr Univ, Sch Chem & Mat Sci, Changsha 410128, Peoples R China

[4] Southeast Univ, Sch Energy & Environm, Confucius Energy Storage Lab, Nanjing 210096, Jiangsu, Peoples R China

[5] Univ Witwatersrand, Mol Sci Inst, Sch Chem, Private Bag 3, ZA-2050 Johannesburg, South Africa

来源：

ADVANCED ENERGY MATERIALS | 2024年 / 14卷 / 03期

关键词：

Al metal; aqueous rechargeable Al-ion battery; cobalt hexacyanoferrate; high energy density; VOLTAGE; CATHODE; REDOX; OXIDE;

D O I：

10.1002/aenm.202302712

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Like other aqueous batteries, aqueous rechargeable Al-ion batteries (ARAIBs) have attracted much attention due to their high safety and low cost. However, the low energy density of ARAIBs limits its popularization and application. In order to solve this problem, in addition to choosing Al metal as the negative electrode, it is also necessary to choose a suitable positive electrode material. Here, a cubic phase cobalt hexacyanoferrate (CoHCF) with excellent rate and cycling performance is used as the positive electrode material. Due to the reversible catalysis of the Cl-/Cl0 reaction at high potential in saturated AlCl3 solution, it has the characteristics of high capacity up to 103.5 mAh g-1. Combined with the Al metal as negative electrode, an ARAIB with an average discharge voltage of 1.56 V and an energy density of 155 Wh kg-1 is constructed, which shows outstanding cycling and rate performances. An aqueous rechargeable Al-ion battery (ARAIB) using a cubic phase cobalt hexacyanoferrate as positive electrode shows excellent rate and cycling performance together with an average discharge voltage of 1.56 V and an energy density of 155 Wh kg-1.image

引用

页数：8

共 37 条

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