Binder-Free V2O5 Cathode for Greener Rechargeable Aluminum Battery

作者：Wang Huali; Bai Ying^*; Chen Shi; Luo Xiangyi; Wu Chuan; Wu Feng; Lu Jun; Amine Khalil

来源：ACS Applied Materials & Interfaces, 2015, 7(1): 80-84.

DOI：10.1021/am508001h

• aluminum battery
• binder-free
• V2O5 cathode
• ionic liquid electrolyte
• PTFE binder
• PVDF binder

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.

• 出版日期2015-1-14
• 单位北京理工大学