This battery replaced the negativeelectrode of the nickel-cadmium battery with one made of hydrogen absorbing alloys, and the voltage was about the same at around 1.2V.
Development background of the new oxygen storage material CeO2-ZrO2 solid solution(CZ) adjusts fluctuating atmosphere of emission in the 3-way automotive catalyst.
酸素濃度変動時の活性領域を拡大した材料従来材料とは『酸素吸蔵特性』が異なる新酸素吸蔵材料を開発。
Material that expanded active region at oxygen concentration fluctuation Developed new oxygen storage material that"Oxygen storage characteristic" is different from existing material.
Melting Furnace for Hydrogen Storage Alloy Induction heating type of vacuum melting furnace is for melting and casting metals in order to obtain alloy with desired composition.
It enables safe use and transport of hydrogen.hydrogen-absorbing alloy canister is filled with a hydrogen absorbing alloy that has characteristics of hydrogen absorption and emission.
While all are expensive metals, the catalyst characteristics, electrical conductivity(contact),and hydrogen storage properties of palladium are functions unique to the platinum-group metals.
In 1980,Toshiba Corporation lead the industry in the development of hydrogen absorbing alloys for negative electrodes, and Toshiba announced its consequent success in a report to a battery round-table discussion in 1984.
Hydrogen storage alloy has a high energy density per unit volume(it can absorb and store hydrogen up to 1,000 times its volume), and this enables storage of a large amount of hydrogen in a small space.
For example, hydrogen turns into water through burning; however,existing hydrogen storage alloys and porous substances have problems-- adsorption and desorption of hydrogen is irreversible and operating capacity at room temperature is poor.
See Fig. on the left side: NOx storage If reduction materials(from over fuel-driving) are regularly added, NOx gets released from the NOx storage materials and reduction-purified on the surface of precious metal.
Platinum-supported cerium-zirconium oxide has an excellent oxygen storage/release capability and plays a role in controlling the amount of oxygen in the catalyst by supporting platinum, a major catalyst, in an exhaust gas purification catalyst system.
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