Aluminum-copper alloy anode materials for high-energy aqueous aluminum batteries.

ABSTRACT: Aqueous aluminum batteries are promising post-lithium battery technologies for large-scale energy storage applications because of the raw materials abundance, low costs, safety and high theoretical capacity. However, their development is hindered by the unsatisfactory electrochemical behaviour of the Al metal electrode due to the presence of an oxide layer and hydrogen side reaction. To circumvent these issues, we report aluminum-copper alloy lamellar heterostructures as anode active materials. These alloys improve the Al-ion electrochemical reversibility (e.g., achieving dendrite-free Al deposition during stripping/plating cycles) by using periodic galvanic couplings of alternating anodic α-aluminum and cathodic intermetallic Al₂Cu nanometric lamellas. In symmetric cell configu

SUBMITTER: Ran Q 

PROVIDER: S-EPMC8803968 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature