1173627-A1 cites 5 patents.

Manganese-free rare earth-transition metal AB5-type hydrogen-absorbing alloys having favorable high rate discharge characteristics, suitable for use in rechargeable batteries for electrical vehicles or hybrid electrical vehicles, include compositions of the general formula: R(CouAlvMwNil-u-v-w)z, where R is at least one element selected from rare earth elements and yttrium (Y), M is at least one refractory metal selected from Groups IVB, VB, and VIB of the periodic table, the value of u is from 0 to about 0.25, v is from 0 to about 0.10, w is from 0 to about 0.05, and z, the ratio of R(CouAlvMwNil-u-v-w)/R, is from about 4.70 to about 5.50. The unit cell volume is from about 87 to about 88.5 A at 25 DEG C, the plateau pressure is from about 3 to about 10 apsi at 25 DEG C, and the composition is essentially free of manganese.; The figure shows a schematic diagram of the measurement of a Pressure Composition Isotherm (PCT) in a Sievert-type-gas-solid reactor.

Title
Ab5-type rare earth transition intermetallic compounds for the negative electrodes of rechargeable batteries
Application Number
EP20000904536 20000127
Publication Number
1173627 (A1)
Application Date
January 27, 2000
Publication Date
January 23, 2002
Inventor
Chen Qun
US
Landi James
US
Ma Bao Min
US
Perng Tsong P
TW
Assignee
Santoku
JP
IPC
C22C 28/00
H01M 04/38
C22C 28/00
C01B 03/00
C22C 19/00
H01M 04/38
C22C 28/00
C01B 03/00
C22C 19/00
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