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Zr계 수소저장합금의 전극특성에 미치는 은 첨가의 영향
노학,정소이,최승준,최전,서찬열,박충년,Noh, Hak,Jeong, So-yi,Choi, Seung-jun,Choi, Jeon,Seo, Chan-yeol,Park, Choong-Nyeon 한국수소및신에너지학회 1997 한국수소 및 신에너지학회논문집 Vol.8 No.3
The effects of Ag addition to Zr-based hydrogen storage alloys ($Zr_{0.7}Ti_{0.3}V_{0.4}Ni_{1.2}Mn_{0.4}$, $Zr_{0.7}Ti_{0.3}V_{0.4}Ni_{1.2}Mn_{0.3}Cr_{0.1}$ and $Zr_{0.6}Ti_{0.4}V_{0.4}Ni_{1.2}Mn_{0.3}Fe_{0.1}$) on the electrode properties were examined. Ag-free and Ag-added Ze-based alloys were prepared by arc melting, crushed mechanically, and subjected to the electrochemical measurement. In $Zr_{0.7}Ti_{0.3}V_{0.4}Ni_{1.2}Mn_{0.4}$ alloy, 0.08 wt% Ag addition to the alloy improved the activation rate. Also Ag addition improved both activation property and discharge capacity in $Zr_{0.7}Ti_{0.3}V_{0.4}Ni_{1.2}Mn_{0.3}Cr_{0.1}$. For these Ag-added alloys, discharge capacities with the change of charge-discharge current density(10mA, 15mA and 30mA) are almost constant. Showing very high rate capability, discharge capacity of $Zr_{0.6}Ti_{0.4}V_{0.4}Ni_{1.2}Mn_{0.3}Fe_{0.1}$ alloy increased by Ag addition to the alloy. When the amount of Ag addition in $Zr_{0.7}Ti_{0.3}V_{0.4}Ni_{1.2}Mn_{0.4}$ alloy increased too much, the electrode properties became worse. Unveiling mechanism of effect of Ag addition is now progressing in our laboratory.
Zr계 수소저장합금의 전극특성에 미치는 은 첨가의 영향
노학(Hak Noh),정소이(So Yi Jeong),최승준(Seung Jun Choi),최전(Jeon Choi),서찬열(Chan Yeol Seo),박충년(Choong Nyeon Park) 한국수소및신에너지학회 1997 한국수소 및 신에너지학회논문집 Vol.8 No.3
The effects of Ag addition to Zr-based hydrogen storage alloys (Zr<sub>0.7</sub>Ti<sub>0.3</sub>V<sub>0.4</sub>Ni<sub>1.2</sub>Mn<sub>0.4</sub>, Zr<sub>0.7</sub>Ti<sub>0.3</sub>V<sub>0.4</sub>Ni<sub>1.2</sub>Mn<sub>0.3</sub>Cr<sub>0.1</sub> and Zr<sub>0.6</sub>Ti<sub>0.4</sub>V<sub>0.4</sub>Ni<sub>1.2</sub>Mn<sub>0.3</sub>Fe<sub>0.1</sub>) on the electrode properties were examined. Ag-free and Ag-added Ze-based alloys were prepared by arc melting, crushed mechanically, and subjected to the electrochemical measurement. In Zr<sub>0.7</sub>Ti<sub>0.3</sub>V<sub>0.4</sub>Ni<sub>1.2</sub>Mn<sub>0.4</sub> alloy, 0.08 wt% Ag addition to the alloy improved the activation rate. Also Ag addition improved both activation property and discharge capacity in Zr<sub>0.7</sub>Ti<sub>0.3</sub>V<sub>0.4</sub>Ni<sub>1.2</sub>Mn<sub>0.3</sub>Cr<sub>0.1</sub>. For these Ag-added alloys, discharge capacities with the change of charge-discharge current density(10㎃, 15㎃ and 30㎃) are almost constant. Showing very high rate capability, discharge capacity of Zr<sub>0.6</sub>Ti<sub>0.4</sub>V<sub>0.4</sub>Ni<sub>1.2</sub>Mn<sub>0.3</sub>Fe<sub>0.1</sub> alloy increased by Ag addition to the alloy. When the amount of Ag addition in Zr<sub>0.7</sub>Ti<sub>0.3</sub>V<sub>0.4</sub>Ni<sub>1.2</sub>Mn<sub>0.4</sub> allay increased too much, the electrode properties became worse. Unveiling mechanism of effect of Ag addition is now progressing in our laboratory.