公开(公告)号：US20210257612A1

公开(公告)日：2021-08-19

申请号：US17267465

申请日：2019-08-12

Applicant: Cornell University

Inventor： Lynden A. ARCHER ,  Qing ZHAO

IPC: H01M4/46 ,  H01M4/36 ,  H01M4/04 ,  H01M4/58 ,  H01M4/48 ,  H01M50/491 ,  H01M50/417 ,  H01M50/44 ,  H01M50/437 ,  H01M50/497

Abstract: Provided are passivation layers for batteries. The batteries may be aqueous aluminum batteries. The passivation layer may be disposed on a portion of or all of a surface or surfaces of an anode, which may be an aluminum or aluminum alloy anode. The passivation layer is bonded to the surface of the anode. The passivation layer may be an organic, nitrogen-rich material and inorganic Al-halide rich or Al-nitrate rich material. The passivation layer may be formed by contacting an aluminum or aluminum alloy substrate, which may be aluminum or aluminum alloy anode, with one or more aluminum halide and one or more ionic liquid.