Mechanism of lithium storage in low temperature carbon
Mechanism of lithium storage in low temperature carbon
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DOI：
10.1016/s0008-6223(99)00067-6
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发表时间：
1999-01-01
期刊：
影响因子：
10.9
通讯作者：
Jiang, YY
中科院分区：
文献类型：
--
作者：
Wu, YP;Wan, CR;Jiang, YY
通过测量碳负极在不同放电和充电电位下的EPR信号强度，提出了低温碳（LTC）中锂储存的微孔机制，并通过在加成聚合物PAN和P(4-VP)中添加致孔剂和引入交联剂DVB的结果进一步证实了这一机制。有效充当锂存储“储层”的微孔尺寸建议低于 100 nm。通过建议的机制解释了 LTC 特有的现象，例如电压迟滞和容量衰减。 (C) 1999 Elsevier Science Ltd. 保留所有权利。
Through measurement of the intensity of the EPR signal of carbon anodes at different discharge and charge potentials, a micropore mechanism is suggested for the storage of lithium in low temperature carbons (LTCs), and it is further confirmed by results from the addition of pore-genic agent and introduction of crosslinker DVB into addition polymers PAN and P(4-VP). The size of micropores acting effectively as 'reservoirs' for lithium storage is suggested to be below 100 nm. The phenomena, which are characteristic in LTCs such as voltage hysteresis and capacity fading, are explained through the suggested mechanism. (C) 1999 Elsevier Science Ltd. All rights reserved.