{"title":"镍氢电池表面改性Mg/sub / ni型负极材料","authors":"N. Cui, B. Luan, D. Bradhurst, H. Liu, S. Dou","doi":"10.1109/BCAA.1997.574124","DOIUrl":null,"url":null,"abstract":"In order to further improve the electrode performance of Mg/sub 1.9/Y/sub 0.1/Ni/sub 0.9/Al/sub 0.1/ alloy at ambient temperature, its surface was modified by an ultrasound pretreatment in the alkaline solution and microencapsulation with Ni-P coating. The effects of various surface modifications on the microstructure and electrochemical performance of the alloy electrodes were investigated and compared in this paper. It was found that the modification with ultrasound pretreatment significantly improved the electrocatalytic activity of the negative electrode and then reduced the overpotential of charging/discharging, resulting in a remarkable increase of electrode capacity and high-rate discharge capability but having little influence on the cycle life. However, the electrode fabricated from the microencapsulated alloy powder showed a higher discharge capacity, better high-rate discharge capability and longer cycle life as well.","PeriodicalId":344507,"journal":{"name":"The Twelfth Annual Battery Conference on Applications and Advances","volume":"2 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1997-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":"{\"title\":\"Surface-modified Mg/sub 2/Ni-type negative electrode materials for Ni-MH battery\",\"authors\":\"N. Cui, B. Luan, D. Bradhurst, H. Liu, S. Dou\",\"doi\":\"10.1109/BCAA.1997.574124\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In order to further improve the electrode performance of Mg/sub 1.9/Y/sub 0.1/Ni/sub 0.9/Al/sub 0.1/ alloy at ambient temperature, its surface was modified by an ultrasound pretreatment in the alkaline solution and microencapsulation with Ni-P coating. The effects of various surface modifications on the microstructure and electrochemical performance of the alloy electrodes were investigated and compared in this paper. It was found that the modification with ultrasound pretreatment significantly improved the electrocatalytic activity of the negative electrode and then reduced the overpotential of charging/discharging, resulting in a remarkable increase of electrode capacity and high-rate discharge capability but having little influence on the cycle life. However, the electrode fabricated from the microencapsulated alloy powder showed a higher discharge capacity, better high-rate discharge capability and longer cycle life as well.\",\"PeriodicalId\":344507,\"journal\":{\"name\":\"The Twelfth Annual Battery Conference on Applications and Advances\",\"volume\":\"2 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1997-01-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"7\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"The Twelfth Annual Battery Conference on Applications and Advances\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/BCAA.1997.574124\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Twelfth Annual Battery Conference on Applications and Advances","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/BCAA.1997.574124","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Surface-modified Mg/sub 2/Ni-type negative electrode materials for Ni-MH battery
In order to further improve the electrode performance of Mg/sub 1.9/Y/sub 0.1/Ni/sub 0.9/Al/sub 0.1/ alloy at ambient temperature, its surface was modified by an ultrasound pretreatment in the alkaline solution and microencapsulation with Ni-P coating. The effects of various surface modifications on the microstructure and electrochemical performance of the alloy electrodes were investigated and compared in this paper. It was found that the modification with ultrasound pretreatment significantly improved the electrocatalytic activity of the negative electrode and then reduced the overpotential of charging/discharging, resulting in a remarkable increase of electrode capacity and high-rate discharge capability but having little influence on the cycle life. However, the electrode fabricated from the microencapsulated alloy powder showed a higher discharge capacity, better high-rate discharge capability and longer cycle life as well.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
