Liu W.,Changchun University of Science and Technology |
Liu W.,CAS Changchun Institute of Applied Chemistry |
Kawabe Y.,GS Yuasa Corporation |
Liang F.,CAS Changchun Institute of Applied Chemistry |
And 3 more authors.
Intermetallics | Year: 2013
The TiV(1-x)NiFex (x = 0, 0.1, 0.2, 0.3 and 0.4) alloy ribbons are synthesized by arc-melting and subsequent melt-spinning techniques. The structure of the alloys is characterized by XRD. The electrochemical properties including the maximum discharge capacity, cyclic stability and the high rate dischargeability, etc. are tested. The results show that the structure of all TiVNi alloy mainly consists of the icosahedral quasicrystal (I-phase), Ti2Ni-type face centered cubic (FCC) phase and body centered cubic (BCC) solid solution phase. After adding some amount of Fe to TiVNi alloys, for TiV0.9NiFe0.1 (x = 0.1) alloy, the XRD pattern is characterized by the FCC and the BCC phase, while the structure of TiV1-xNiFex alloys (x = 0.2, 0.3 and 0.4) consists of the BCC solid solution phase alloy. The maximum discharge capacity of the alloy electrodes increases firstly and then decreases with increasing x, the same as the high-rate dischargeability. The optimal value of C240/C30 is 84.2%, corresponding to x being 0.2 and the discharge current density is 240 mA/g. In addition, the electrochemical reaction kinetics of the alloy electrodes is also studied by electrochemical impedance spectroscopy and hydrogen diffusion coefficient (D). © 2012 Elsevier Ltd.All rights reserved. Source
Japan National Institute of Advanced Industrial Science, Technology and GS Yuasa Corporation | Date: 2012-08-16
Provided is a hydrogen storage alloy which is characterized in that two or more crystal phases having different crystal structures are layered in a c-axis direction of the crystal structures. The hydrogen storage alloy is further characterized in that a difference between a maximum value and a minimum value of a lattice constant a in the crystal structures of the laminated two or more crystal phases is 0.03 or less.
GS Yuasa Corporation | Date: 2010-01-29
A non-aqueous electrolyte battery comprising: a battery case containing aluminum; a positive electrode terminal attached to the battery case; and a negative electrode terminal attached to the battery case and insulated from the battery case, wherein the positive electrode terminal and the battery case are connected through a resistor having resistance of 1 to 1 M. Otherwise, A non-aqueous electrolyte battery comprising: a battery case containing iron; a negative electrode terminal attached to the battery case; and a positive electrode terminal attached to the battery case and insulated from the battery case, wherein the negative electrode terminal and the battery case are connected through a resistor having resistance of 1 to 1 M.
GS Yuasa Corporation | Date: 2010-11-23
A storage battery is provided in which an expand grid is improved with respect to the widths of grid wires
GS Yuasa Corporation | Date: 2010-03-29
The metal foil of the positive electrode