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博文

铅酸电池正极材料的资源化

已有 3876 次阅读 2013-12-9 14:21 |系统分类:论文交流|关键词:铅酸电池,电化学,混合物,碳酸盐,文章| 文章, 电化学, 混合物, 铅酸电池, 碳酸盐

前一篇博文讲述了二次电池资源化的问题,我们的研究正在向该文指出的方向迈进。正好

Elsevier提供的论文分享服务可以使任何读者阅读我们发表的一篇文章。以下是链接:

 

http://elsarticle.com/18ARrU4

 

如有兴趣,请读者自行前往,下载阅读。如有问题,请留言。

 

文章摘要:PbO2和PbSO2的混合物在用碳酸盐脱硫后,在密闭容器中140 oC甲醇中处理可以得到PbO·PbCO3和 PbCO3。后者经450 oC灼烧可以得到高活性的PbO。其电化学性能超过现有工业上用金属铅制备的含铅氧化铅,可用于生产铅酸电池。

 

论文的英文摘要如下:

We have developed a novel route to make new batteries from spent ones, in which we obtain and regenerate the active materials of positive electrode and negative electrode respectively. For the spent lead acid batteries, the positive electrode active materials contain both PbSO4 and PbO2. To make full use of them, we have to investigate the treatment of the mixtures rather than only PbO2, which we have reported previously. Here we report our investigation on three mixtures of PbSO4 and PbO2 in different mole ratios, as well as the electrode materials directly from the spent batteries. The mixtures are firstly desulphated, and then solvothermally processed in methanol at 140 °C for 24 h. The as-obtained solids contain both PbO·PbCO3 and PbCO3, which have been calcined to form α-PbO. The α-PbO powders are similar irregular particles and highly electrochemically active, which discharge  around 170 mAh g−1 at 5 mA g−1, 80 mAh g−1 at 200 mA g−1 and 60 mAh g−1 at 400 mA g−1 with excellent cyclic stability in 50 cycles.

 



http://blog.sciencenet.cn/blog-272017-748341.html

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