Improved rapidly-quenched hydrogen-absorbing alloys for development of improved-capacity nickel metal hydride batteries

Uniform nanocrystalline AB5-type hydrogen storage alloy: Preparation and properties as negative materials of Ni/MH battery

“…Rapid solidification of the melt alloy using a single roll process proved to be very effective for increasing the cycle stability of rare earth alloys. But the single-roll quenched alloys are often annealed again to compensate for the shortcomings of the process and to improve the high-rate capability, the discharge voltage plateau and cycle stability [23,24]. The annealing process would increase cost of the product.…”

Effects of sintering on the performance of hydrogen storage alloy electrode for high-power Ni/MH batteries

“…And also some studies showed that annealing and surface treatment with an acid solution and a rapidly quenching treatment could result in high capacity and structural homogeneity [7][8][9]. However, among the electrochemical studies, the majorities have dealt with the evaluation of the electrode characteristics in open systems, and few studies were carried out for the high-rate capability in conjunction with the modification of the MH electrodes.…”

Halogen: A high-capacity cathode for rechargeable alkaline batteries

“…The search for higher capacity batteries has focused on a wide range of materials including anode materials, 1 cathode materials 2 and electrolyte. 3 With the considerable increasing attention on electric automobile and portable computers, rechargeable batteries such as nickel/metal hydride 4 (Ni/MH), fuel cell and Li-ion batteries 5 have increased in importance. At the end of 19th century, the commonly used secondary alkaline batteries which are based upon nickel oxide cathodes (Ni/Fe and Ni/Cd batteries) were invented.…”