Recent Progress and Future Trends of Aluminum Batteries

Abstract

As one of the most promising alternatives to next‐generation energy storage systems, aluminum batteries (ABs) have been attracting rapidly increasing attention over the past few years. In this review, we summarize the recent advancements of ABs based on both aqueous and non‐aqueous electrolytes, with a particular focus on rechargeable non‐aqueous ionic liquid‐based aluminum‐ion batteries (AIBs). Progress of the current intensive investigation on the development of cathode materials and electrolytes in non‐aqueous AIBs are discussed. Then research efforts towards aqueous ABs are described to give readers a broader view of the aluminum battery family. Finally, the review summaries the key challenges underpinning ABs and provides future research perspectives on this growing field.

Covalent Organic Frameworks for Next‐Generation Batteries

“…However, the rate capability and cycle stability of aluminum ion batteries (AIBs) is not satisfactory, which is due to the slow kinetics of large chloroaluminate anions. [124][125][126] Researchers have been working to develop host materials suitable for chloroaluminate anions, such as graphene, conductive polymers, metal oxides, and sulfides. [127][128][129] Recently, some graphite materials with a layered structure and high crystallinity have shown satisfactory rate capabilities in AIBs.…”

“…Aluminum metal, which is safe and abundant, has potential as a candidate material for secondary batteries. However, the rate capability and cycle stability of aluminum ion batteries (AIBs) is not satisfactory, which is due to the slow kinetics of large chloroaluminate anions . Researchers have been working to develop host materials suitable for chloroaluminate anions, such as graphene, conductive polymers, metal oxides, and sulfides .…”

Hollow structured cathode materials for rechargeable batteries

“…Recently, tremendous efforts have been devoted to other battery systems based on the intercalation chemistry of multivalent cations, such as Zn 2+ , Mg 2+ , and Al 3+ [10][11][12]. First, these multivalent ions are far more abundant in the earth's crust than Li ion, resulting in wider availability and lower cost.…”

“…As a state-ofthe-art energy storage system, lithium-ion batteries (LIBs) continue to power consumer electronics and are found in defense, automotive, and aerospace applications owing to their high energy density [8]. On the other hand, some other rechargeable batteries based on alternative charge-carrying ions, such as sodium-ion batteries (SIBs) [9], magnesium-ion batteries (MIBs) [10], zinc-ion batteries (ZIBs) [11], and aluminum-ion batteries (AIBs) [12], have entered into the spotlight due to the high abundance of these guest ions. In particular, thanks to the very similar electrochemistry to that of LIBs, SIBs have been considered as the most promising complements to LIBs for large-scale electrical storage applications [13,14].…”

Rechargeable High‐Capacity Aluminum‐Nickel Batteries

“…Nevertheless, due to limited lithium resources, other types of battery systems have been considered as viable candidates. Among these batteries, AIBs possess numerous advantages owing to the abundant reserves of aluminum and its three‐electron redox during cycling . Besides, the volume capacity of aluminum is about four times that of lithium .…”