第 39 卷第 1 期 | | Vol. 39 No. 1 | 2009 年 2 月 | Feb 2009 |
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所属栏目:功能材料
新型电池正极材料化学二氧化锰的重质化 |
贺周初,彭爱国,余长艳,肖 伟
(湖南化工研究院 国家农药创制工程技术研究中心,湖南 长沙 410007) |
摘 要:在碳酸锰沉淀热解法制备化学二氧化锰工艺中,粗二氧化锰精制时添加适量硫酸锰,以氯酸钠为氧化剂对二氧化锰进行重质化处理,可获得振实密度大于2.4 g/cm3的高视密度化学二氧化锰,该重质化方法对粗二氧化锰的氧化率具有较强的适应性,可操作性强,易于工业化,产品化学二氧化锰可满足锂离子电池正极材料用二氧化锰要求。 |
关键词:化学二氧化锰;电池;重质化 |
中图分类号:O611 文献标识码:A 文章编号:1009-9212(2009)01- 0056-03 |
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Densification of New Battery Cathode Material Chemical Manganese Dioxide |
HE Zhou-chu,PENG Ai-guo,YU Chang-yan,XIAO Wei
(National Engineering Research Center of Agrochemicals,Hunan Research Institute of Chemical Industry,Changsha 410007,China) |
Abstract:Chemical manganese dioxide of high volume density with a tap density more than 2.4 g/cm3 was prepared. The densification of manganese dioxide was performed by the addition of manganese sulfate and sodium chlorate during the preparation of the crude manganese dioxide that prepared by way of precipitation and decomposition of manganese carbonate. The densification technology is easy to operate and industrialize. The product meets the requirement of manganese dioxide that are used in cathode materials for lithium ion batteries. |
Key words:chemical manganese dioxide;battery;densification |
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基金项目:国家高技术研究发展(863)计划资助项目(2008AA031205)。
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作者简介:贺周初(1964-),男,湖南娄底人,副研究员,主要从事无机功能材料研究。
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收稿日期: 2009-02-0
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