The properties of La0.45Ce0.2Nd0.2Pr0.15Ni3.55Co0.75 alloy electrode com-pared with those of La0.65Nd0.2Pr0.15Ni3.55Co0.75Mn0.4Al0.3 have been investigated, in addition,the effects of Ce have been disscussed. The La0....The properties of La0.45Ce0.2Nd0.2Pr0.15Ni3.55Co0.75 alloy electrode com-pared with those of La0.65Nd0.2Pr0.15Ni3.55Co0.75Mn0.4Al0.3 have been investigated, in addition,the effects of Ce have been disscussed. The La0.65Nd0.2Pr0.15Ni3.55Co0.75Mn0.4 alloy electrodeshows a high discharge capacity and rate capability but low cycling stability. With partial sub-stitution for La by Ce, i.e. the La0.45Ce0.2Nd0.2Pr0.15Ni3.55Co0.75 alloy electrode showsa good cycling stability, which decays only 12% of maximum capacity （310 mA.h.g-1） after 300cycles.展开更多
AB5 type complex hydrogen storage alloy was prepared by reduction-diffusion method, polymer-network gel method and coprecipitation-reduction-diffusion method, respectively. The thermo-dynamic P-C-T curve test was perf...AB5 type complex hydrogen storage alloy was prepared by reduction-diffusion method, polymer-network gel method and coprecipitation-reduction-diffusion method, respectively. The thermo-dynamic P-C-T curve test was performed. Some electrodes of Ni-MH battery with the complex alloys was also prepared and their electrochemical properties were examined. The results indicated that there were great differences in size, morphology and properties for alloys prepared by different methods.展开更多
文摘The properties of La0.45Ce0.2Nd0.2Pr0.15Ni3.55Co0.75 alloy electrode com-pared with those of La0.65Nd0.2Pr0.15Ni3.55Co0.75Mn0.4Al0.3 have been investigated, in addition,the effects of Ce have been disscussed. The La0.65Nd0.2Pr0.15Ni3.55Co0.75Mn0.4 alloy electrodeshows a high discharge capacity and rate capability but low cycling stability. With partial sub-stitution for La by Ce, i.e. the La0.45Ce0.2Nd0.2Pr0.15Ni3.55Co0.75 alloy electrode showsa good cycling stability, which decays only 12% of maximum capacity （310 mA.h.g-1） after 300cycles.
文摘AB5 type complex hydrogen storage alloy was prepared by reduction-diffusion method, polymer-network gel method and coprecipitation-reduction-diffusion method, respectively. The thermo-dynamic P-C-T curve test was performed. Some electrodes of Ni-MH battery with the complex alloys was also prepared and their electrochemical properties were examined. The results indicated that there were great differences in size, morphology and properties for alloys prepared by different methods.
