{
  "$type": "site.standard.document",
  "description": "A nickel-metal hydride secondary cell (2) holds therein an electrode group (22) and an alkaline electrolyte solution containing NaOH as a main constituent of its solute. The electrode group has a positive electrode (24) and a negative electrode (26) lapped one over the other with a separator (28)…",
  "path": "/patents/979092",
  "publishedAt": "2014-01-29T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C01B3/0057",
    "FDK TWICELL CO LTD [JP]"
  ],
  "textContent": "A nickel-metal hydride secondary cell (2) holds therein an electrode group (22) and an alkaline electrolyte solution containing NaOH as a main constituent of its solute. The electrode group has a positive electrode (24) and a negative electrode (26) lapped one over the other with a separator (28) therebetween. The negative electrode (26) contains a hydrogen absorbing alloy having a composition represented by the general formula: (RET)MgNiAl(where RE is at least one element selected from among Y, Sc and rare-earth elements, T is at least one element selected from among Zr, V and Ca, and subscripts x, y, z and a are values respectively satisfying 0 ≤ x, 0.05 ≤ y ≤ 0.35, 2.8 ≤ z ≤ 3.9, and 0.10 ≤ a ≤ 0.25), the hydrogen absorbing alloy has a crystal structure in which an ABsubunit and an ABsubunit are superimposed one upon the other, and Cr is substituted for part of the Ni.",
  "title": "Nickel-metal hydride secondary cell and negative electrode therefor"
}