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gddqq

金虫 (小有名气)

[求助] 碳材料储锂的机制?

小弟最近做了一个N参杂的碳材料,做锂电负极容量在低倍率下有1000多一点,高倍率的性能也不错,请问参杂的碳材料一般的储锂的机理是什么样的?为啥能超过碳的理论容量372mAh/g的理论容量呢???
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cwx040105

铁杆木虫 (正式写手)

比较准确的说法是石墨的理论比容量是370左右,不同形态的碳负极理论容量有所区别,而且容量的多少与碳材料的各项工艺也密切相关。掺了氮,首先想到的自然是电子结构的改变,导电性不知有无提高,其次为空间结构。掺氮的石墨烯和碳管阁下应该涉猎很多了吧?
2楼2015-07-10 17:51:59
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