Title:
【発明の名称】アルカリ蓄電池用水素吸蔵合金電極の製造方法
Document Type and Number:
Japanese Patent JP2895848
Kind Code:
B2
Abstract:
PURPOSE:To enable homogenizing with a quenching coagulation method for the application of high capacity to an electrode and the restraining of self- discharge, increase energy density and improve storage characteristics by forming a negative electrode used for a metal-hydrogen alkaline battery using elements shown by a specific formula. CONSTITUTION:Hydrogen occlusion alloy manufactured with a quenching coagulation method and expressed by the composition formula of AxBy is used, where A stands for a rare earth element and B generally stands for Ni and Co. when y=5 in the formula, the value of (x) is taken as 1.0<=x<=2. In the composition formula AxBy, Ni and Co as the main elements of 8 are partly displaceable with other elements and these elements are at least one of elements selected among Cr, Mn, Fe, Cu, Al, Si, In, Sn, Ga and Ge. Also, A is a rare earth element including La, and the contained amount of La is within 10 to 18wt.% for the total amount of all rare earth elements. The alloy so made is crushed to a grain size equal to or less than 50mum and 10wt.% of polytetrafluoroethylene as a binding agent is added thereto for application to a current collector.
Inventors:
FURUKAWA AKIO
FUJITANI SHIN
YONEZU IKURO
SAITO TOSHIHIKO
FUJITANI SHIN
YONEZU IKURO
SAITO TOSHIHIKO
Application Number:
JP4095489A
Publication Date:
May 24, 1999
Filing Date:
February 21, 1989
Export Citation:
Assignee:
SANYO DENKI KK
International Classes:
H01M4/24; H01M4/26; H01M4/38; H01M10/24; (IPC1-7): H01M4/26; H01M4/38
Domestic Patent References:
| JP5916270A | ||||
| JP64649A | ||||
| JP6070665A |
Attorney, Agent or Firm:
Koji Yasutomi (1 person outside)