| 简介 |
A modified A 2 B 7 type hydrogen storage alloy having reduced hysteresis. The alloy consists of a base A x B y hydrogen storage alloy, where A includes at least one rare earth element and also includes magnesium, B includes at least nickel, and the atomic ratio of x to y is between 1 : 2 and 1 : 5. The base alloy is modified by addition of a modifier element having a relatively small atomic volume such that degree of disorder of the A 2 B 7 alloy is increased, and the absorption/desorption hysteresis of the modified alloy is reduced by at least 10% as compared to the base alloy. |
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