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Design of carbonaceous materials for enhanced electrochemical performances of silicon/carbon composite nanofiber lithium-ion battery anode

机译：硅/碳复合纳米纤维锂离子电池阳极增强电化学性能的碳质材料设计

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Although the discovery of the shale gas alleviates the concerns on the fossil fuel depletion, the electrical vehicle developments are strongly required in the environmental point of view. It is well-known that the lithium-ion battery is one of the most promising power sources enabling the electrical vehicle commercialization on the basis of the stable charging/discharging behavior as well as the lack of memory effect. The low energy storage capacity of the existing lithium-ion battery is, however, one of the most urgent issues to be overcome. Due to the low specific capacity of the existing carbonaceous anode materials (372 mAhg~(-1) ), the anode material development may be the best option to improve the energy storage capacity. In the meantime, the silicon has been considered as the best alternative to the existing anode materials because of the excellent specific capacity (4212 mAhg~(-1) ), but the volume change during the electrochemical reactions and subsequent electrical contact loss hinder the utilization of the raw silicon as an anode material . The silicon/carbon composite materials have been designed in order to overcome aforementioned problems.
机译：虽然页岩气体的发现减轻了对化石燃料消耗的担忧，但在环境的观点中强烈要求电动车辆发展。众所周知，锂离子电池是最有前途的电源之一，可以基于稳定的充电/放电行为以及缺乏记忆效果来实现电动车辆商业化之一。然而，现有锂离子电池的低能量储存能力是最迫切的问题之一。由于现有的碳质阳极材料的特定容量（372mAhg〜（-1）），阳极材料发育可能是提高能量储存能力的最佳选择。同时，由于优异的特定容量（4212mAhg〜（-1）），硅被认为是现有阳极材料的最佳替代品，但在电化学反应期间的体积变化和随后的电接触损失阻碍利用原料硅作为阳极材料。设计了硅/碳复合材料以克服上述问题。

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