納米復(fù)合對(duì)電極性能的影響
(華南理工大學(xué) 機(jī)電系， 廣州 510640)
摘 要: 對(duì)由兩步法(由機(jī)械合金化和燒結(jié)兩個(gè)步驟組成)制備的Mg2Ni型儲(chǔ)氫合金進(jìn)行高能球磨處理，然后對(duì)球磨后的Mg2Ni合金粉進(jìn)行化學(xué)鍍及與AB5型合金進(jìn)行復(fù)合等處理。利用X射線衍射(XRD)、掃描電鏡(SEM)分析了經(jīng)過處理的材料的微觀結(jié)構(gòu)，并用模擬電池法測(cè)定了該材料的電極性能，并討論了化學(xué)鍍和與AB5型儲(chǔ)氫合金復(fù)合等因素對(duì)Mg2Ni合金電極特性的影響。
關(guān)鍵字: Mg2Ni；儲(chǔ)氫合金；Ni-P化學(xué)鍍；高能球磨
nano-phase composite on electrode
properties of Mg2Ni-based hydrogen
storage alloys
CHE Xiao-zhou, YANG Yong-qiang
（Department of Mechano-electronic Engineering，
South China University of Technology，
Guangzhou 510640，China）
Abstract:High energy ball milling was used to prepare Mg2Ni-base d hydrogen storage alloys， which was produced by mechanical alloying and sintering. Then electroless plating and composition with AB5 hydrogen storage alloys we re done to milled alloy particles. The microstructures of Mg2Ni-based hydrogen storage alloys caused by above-mentioned methods was characterized by X-ray diffraction and SEM analysis. While electrode performance of these materials was deter mined by the simulated battery test. Based on these results， the effects of the mechanical alloying, the composition with AB5 hydrog en st orage alloys and electroless plating on the electrode capacity of Mg2Ni hydrogen storage alloys were discussed.
Key words: Mg2Ni; hydrogen storage alloy; Ni-P electro less plating; high energy ball milling
