公开(公告)号：EP2620999A1

公开(公告)日：2013-07-31

申请号：EP12173271.3

申请日：2005-09-09

申请人： Ovonic Battery Company, Inc.

发明人： Young, Kwo ,  Fetchenko, Michael, A. ,  Ovshinsky, Stanford, R. ,  Ouchi, Taihei ,  Li, Feng ,  Reinhout, Melanie

IPC分类号： H01M4/02 ,  C22C30/00

CPC分类号： H01M4/383 ,  C01B3/0057 ,  C01B3/0078 ,  H01M4/385 ,  H01M10/345 ,  Y02E60/327

摘要： 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.

摘要翻译： 具有减小的滞后的改进的A 2 B 7型储氢合金。 该合金由一种基底A x B y储氢合金组成，其中A包括至少一种稀土元素，并且还包括镁，B至少包括镍，并且x与y之间的原子比为1:2:1:1。 5。 通过添加具有相对较小的原子体积的改性剂元素来改变基体合金，使得A 2 B 7合金的无序度增加，并且改性合金的吸收/解吸滞后被降低至少10％，如 与基体合金相比。