Binder-Free V2O5 Cathode for Greener Rechargeable Aluminum Battery

被引：293
|
作者：
Wang, Huali [1 ]
Bai, Ying [1 ]
Chen, Shi [1 ]
Luo, Xiangyi [2 ]
Wu, Chuan [1 ]
Wu, Feng [1 ]
Lu, Jun [2 ]
Amine, Khalil [2 ]
机构：
[1] Beijing Inst Technol, Sch Chem Engn & Environm, Beijing Key Lab Environm Sci & Engn, Beijing 100081, Peoples R China
[2] Argonne Natl Lab, Chem Sci & Engn Div, Lemont, IL 60439 USA
来源：
ACS APPLIED MATERIALS & INTERFACES | 2015年 / 7卷 / 01期
关键词：
aluminum battery; binder-free; V2O5; cathode; ionic liquid electrolyte; PTFE binder; PVDF binder; DIRECT GROWTH; ION; ANODE; MAGNESIUM; ARRAYS; ELECTROCHEMISTRY; BEHAVIOR; STORAGE;
D O I：
10.1021/am508001h
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This letter reports on the investigation of a binder-free cathode material to be used in rechargeable aluminum batteries. This cathode is synthesized by directly depositing V2O5 on a Ni foam current collector. Rechargeable aluminum coin cells fabricated using the as-synthesized binder-free cathode delivered an initial discharge capacity of 239 mAh/g, which is much higher than that of batteries fabricated using a cathode composed of V2O5 nanowires and binder. An obvious discharge voltage plateau appeared at 0.6 V in the discharge curves of the Ni-V2O5 cathode, which is slightly higher than that of the V2O5 nanowire cathodes with common binders. This improvement is attributed to reduced electrochemical polarization.
引用
收藏
页码：80 / 84
页数：5
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