Lithium storage mechanisms and effect of partial cobalt substitution in manganese carbonate electrodes.
Lithium storage mechanisms and effect of partial cobalt substitution in manganese carbonate electrodes.
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DOI：
10.1021/ic3004382
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发表时间：
2012-05
影响因子：
4.6
通讯作者：
Shadi Mirhashemihaghighi;B. León;C. Pérez Vicente;J. Tirado;R. Stoyanova;M. Yoncheva;E. Zhecheva
中科院分区：
文献类型：
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作者：
Shadi Mirhashemihaghighi;B. León;C. Pérez Vicente;J. Tirado;R. Stoyanova;M. Yoncheva;E. Zhecheva
最近出现了一组有前途的无机盐，用于先进锂离子电池的负极。碳酸锰结合了低重量和显著的锂储存性能。电子顺磁共振（EPR）和磁测量用于研究锰离子在锂测试电池循环过程中的环境。为了观察可逆的锂储存到碳酸锰中，使用通过反胶束方法制备。所得的纳米结构有利于碳酸锰的电容性锂存储机制，具有良好的倍率性能。用锰部分取代钴提高了高速率的循环效率。
A promising group of inorganic salts recently emerged for the negative electrode of advanced lithium-ion batteries. Manganese carbonate combines low weight and significant lithium storage properties. Electron paramagnetic resonance (EPR) and magnetic measurements are used to study the environment of manganese ions during cycling in lithium test cells. To observe reversible lithium storage into manganese carbonate, preparation by a reverse micelles method is used. The resulting nanostructuration favors a capacitive lithium storage mechanism in manganese carbonate with good rate performance. Partial substitution of cobalt by manganese improves cycling efficiency at high rates.