Hydrogen-absorbing alloy electrode

专利名称：Hydrogen-absorbing alloy electrode发明人：Watanabe, Hiroshi, c/o SANYO Electric Co.,

Ltd.,Furukawa, Akio, c/o SANYO Electric Co.,Ltd.,Fujitani, Shin, c/o SANYO Electric Co.,Ltd.,Yonezu, Ikuo, c/o SANYO Electric Co.,Ltd.,Isono, Takahiro, c/o SANYO Electric Co.,Ltd.

申请号：EP94106597.1申请日：19940427公开号：EP0622860A2公开日：19941102

专利附图：

摘要：Three types of novel hydrogen-absorbing alloy electrodes A, B and C usable formetal hydride secondary batteries are provided. All three types are represented by thegeneral formula ABx wherein A represents Ti or elements that principally comprise Ti andgenerate heat upon absorption of hydrogen, B represents Mo and Ni or elements thatprincipally comprise Mo and Ni and absorb heat upon absorption of hydrogen and 0.5 ≦ X≦ 2, and are readily producible and difficult to undergo cycle deterioration and need onlyshort activation treatment time. (A) uses a hydrogen-absorbing alloy obtained byquenching and solidifying an alloy melt under an atmosphere of a reducing gas

containing hydrogen at a cooling rate of at least 1 x 10³°C/sec and having on the surfacethereof a hydride layer; (B) uses a hydrogen-absorbing alloy having a composite phasestructure comprising a main phase and a subphase, the average areal ratio of saidsubphase to said main phase in any cross-section of said alloy being 5 to 20%; and (C)uses a hydrogen-absorbing alloy having a composite structure comprising a main phaseand subphase, said main phase comprising crystallites having a major axis length (a) of 0.8to 6µm and a ratio of the major axis length (a) to minor axis ratio (b), a/b, of not more

than 3.

申请人：SANYO ELECTRIC Co., Ltd.

地址：5-5, Keihanhondori 2-chome Moriguchi-shi, Osaka JP

国籍：JP

代理机构：VOSSIUS & PARTNER

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