A paste type negative electrode using a MmNi5 based hydrogen storage alloy for a nickel–metal hydride (Ni–MH) battery

2001 ◽  
Vol 26 (7) ◽  
pp. 735-739 ◽  
Author(s):  
H Uchida
2019 ◽  
Vol 317 ◽  
pp. 211-220 ◽  
Author(s):  
Wenfeng Wang ◽  
Lu Zhang ◽  
Ismael A. Rodríguez-Pérez ◽  
Yumeng Zhao ◽  
Xiaoxue Liu ◽  
...  

2014 ◽  
Vol 18 (7) ◽  
pp. 2019-2026 ◽  
Author(s):  
Yassine Ben Belgacem ◽  
Chokri Khaldi ◽  
Sami Boussami ◽  
Jilani Lamloumi ◽  
Hamadi Mathlouthi

Author(s):  
Kouji Maeda ◽  
Shinji Yae ◽  
Naoki Fukumuro ◽  
Kenji Iimura ◽  
Ayumu Matsumoto

Abstract A nickel-metal hydride (Ni–MH) prototype battery completely immersed in an aqueous electrolyte solution of KOH under high pressure was fabricated to examine the effects of high pressure on the quality of Ni–MH batteries. The small battery cell comprised positive and negative electrode materials, as used in electric vehicles, and an Ag/AgO reference electrode. The electric capacity of the Ni–MH battery was measured at different temperatures and pressures with small currents and charge/discharge voltages of 1.6 – 1.0 V. High pressures were found to clearly and effectively enhance the electric capacity of the Ni–MH battery at larger currents. The considerable effect of high pressure on the Ni–MH battery was elucidated by the change in internal resistance during the charge/discharge cycle life experiment, indicating that the voltage of the positive electrode did not appreciably change at a high pressure compared to that of the negative electrode. Moreover, the use of large currents in rapid charge/discharge cycle tests at high pressures of up to 30 MPa resulted in charge/discharge cycles that were five times faster and a quick recovery of capacity was achieved in the 0.5 – 2.1 V range.


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