Self-corrosion, electrochemical and discharge behavior of commercial purity Al anode via Mn modification in Al-air battery

Self-Driven Electrochromic Window System Cu/WOx-Al3+/GR with Dynamic Optical Modulation and Static Graph Display Functions

“…Tungsten oxide (WO x ) film electrodes were prepared as previously described . Using the radio frequency (RF, 13.56 MHz) magnetron reactive sputtering technique, WO x films were deposited in an atmosphere of mixed O 2 (1.5 sccm, 99.50% purity) and Ar (4.0 sccm, 99.99% purity) with a total pressure of 8 mTorr at room temperature.…”

“…Tungsten oxide (WO x ) film electrodes were prepared as previously described. 28 Using the radio frequency (RF, 13.56 MHz) magnetron reactive sputtering technique, WO x films were deposited in an atmosphere of mixed O 2 (1.5 sccm, 99.50% purity) and Ar (4.0 sccm, 99.99% purity) with a total pressure of 8 mTorr at room temperature. Before being placed on the substrate holder (rotating at 3 rpm) in the magnetron sputtering system (Angstrom Engineering Inc., NEXDEP, Canada), transparent conductive glass/ITO substrates were ultrasonically cleaned in ultrapure water (18.20 MΩ•cm) and ethanol (99.7% purity) for 20 min each and then dried in a stream of N 2 (99.999% purity).…”

“…Second, the active metal anode allows for the build-up of an inherent electric potential (governed by the Gibbs free-energy difference between the given anode and cathode materials) to drive a spontaneous coloration of the cathode electrochromic layer, and the resultant color can be easily erased through a discharge process, thus, eliminating the need for an external energy source . However, to achieve a rapid electrochromic rate, the metal anode should have a high chemical reactivity, which will result in an irreversible self-corrosion and/or self-dissolution in the electrolyte solution, especially during the deintercalation of guest cations from the cathode electrochromic layer. − In addition, the high intercalation potential provided by the active metal anode would result in a large amount of trapped cations and yield an accumulation of charges in the cathode electrochromic layer, particularly in the case of small-sized samples. , Therefore, due to the intrinsic degradation mechanism of electrode materials, the active metal-based electrochromic windows would inevitably suffer from the issue of short life span, which seriously hinders their potential in practical applications.…”

Microstructural Evolution and Mechanical Properties of Pure Aluminum upon Multi-Pass Caliber Rolling

“…Nowadays, the researchers in automotive and aerospace fields are eager to develop high-performance structural metals, in which lightweight alloys become an important choice for such applications [ 1 ]. Aluminum (Al) and its alloys are widely used due to their high strength, good formability, and corrosion resistance [ 2 , 3 , 4 , 5 , 6 ]. To meet the increasing toughness requirements of structural materials, severe plastic deformation (SPD) technology is introduced to greatly improve the strength of materials [ 7 , 8 , 9 , 10 ].…”

Metal–Organic Framework Structure with Fe–Co–Se (MIL-88A/Fe–Co@Se) as a Cathode for Aluminum Batteries

“…All of these requirements should be supported by batteries with good cycling performance, high capacity, small size, and more safety. − Compared with traditional rechargeable batteries, aluminum batteries are becoming a strong contender for the next generation of energy storage batteries. This is due to the abundant aluminum reserves on earth (82,000 ppm) and high theoretical specific capacity (8046 mA h cm –3 , vs Li 2062 mA h cm –3 ), safety, and other advantages. − Although there have been many breakthroughs and developments in aluminum battery systems, ,,− there are still many limitations and problems in the existing aluminum batteries. For example, the stability of cathode materials in the acidic ionic electrolyte is directly related to the cycle performance of the battery. ,− …”