Capacitive charge storage enables an ultrahigh cathode capacity in aluminum-graphene battery

Abstract

Feasible engineering of cathode electrolyte interphase enables the profoundly improved electrochemical properties in dual-ion battery

Engineering Active Sites of Polyaniline for AlCl2+ Storage in an Aluminum‐Ion Battery

“…It is noted that capacitive charge storage enables a high cathode capacity. [18] Furthermore, PANI(H + )@SWCNT electrodes still exhibit low ion energy barriers and fast kinetic conversion of PANI(H + ) even at long-term cycles (Figure 3 e and Supporting Information, Figure S27). As a result, the cells with PANI(H + )@SWCNT electrodes display a high power density of approximately 41 kW kg À1 at an energy density of approximately 191 Wh kg À1 (these values were calculated based on the mass of PANI(H + )), making them potentially competitive against other conventional electrochemical energy storage devices and reported organic cathode materials of AIBs (Figure 3 f).…”

Recent advances and perspectives on vanadium- and manganese-based cathode materials for aqueous zinc ion batteries

“…However, people's concerns about the low electrolyte safety, high cost, and limited lithium resources are increasing, which seriously restrict further development in large-scale application [9,10]. This situation promotes researchers to look for alternative opportunities in other rechargeable mental ion batteries, such as battery with monovalent (Na, K) or multivalent (Mg, Ca, Zn, Al) metal elements [11][12][13][14]. Potassium and sodium-ion batteries are plausible battery systems, given the similar chemical property of lithium, sodium, and potassium and relative abundance of sodium and potassium elements [15,16].…”

Electrodeposition of a dendrite‐free 3D Al anode for improving cycling of an aluminum–graphite battery

“…[1][2][3][4] The development of high-energy cathode materials and low-cost and stable electrolytes has been extensively studied for aluminum-ion batteries and aluminum dual-ion batteries (consisting of a carbonaceous cathode). [5][6][7][8][9][10][11][12] However, as a crucial part of aluminum-based batteries, Al anodes have some challenging issues that need to be properly addressed, such as the dendrite growth, insulative oxide film, and corrosion accompanying hydrogen evolution in an ionic liquid (IL) electrolyte. [13][14][15][16] Conventional Al anodes have the limitation of dendrite formation due to unstable reversible deposition, leading to safety concerns when piercing the separator and causing deteriorative capacity and cycling life.…”

“…Aluminum–metal secondary batteries show remarkable potential as next‐generation energy storage systems owing to their high theoretical gravimetric capacity (2.98 Ah g −1 ), intrinsic safety, and abundant resource 1–4 . The development of high‐energy cathode materials and low‐cost and stable electrolytes has been extensively studied for aluminum‐ion batteries and aluminum dual‐ion batteries (consisting of a carbonaceous cathode) 5–12 . However, as a crucial part of aluminum‐based batteries, Al anodes have some challenging issues that need to be properly addressed, such as the dendrite growth, insulative oxide film, and corrosion accompanying hydrogen evolution in an ionic liquid (IL) electrolyte 13–16 …”