Abstract We propose a green and sustainable development method to convert corn straw into porous carbon nanospheres for lithium ion battery electrode materials. Biomass porous carbon nanospheres were synthesized by high-temperature carbonization and activation using corn straw. Through the comparison of different activator, it is found that the carbon nanospheres activated by CaCl2 can not only retain the spherical structure, but also obtain rich porous, thereby enabling excellent electrochemical performance (546 mA h g−1 at the end of 100 cycles at 0.2C). The porous carbon nanospheres from low-cost and non-pollution corn straw cellulose are ideal candidate for the negative electrode material of lithium ion batteries.

中文翻译：

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生物质副产品的可持续应用：玉米秸秆衍生多孔碳纳米球用作锂离子电池负极材料

摘要 我们提出了一种绿色可持续发展的方法，将玉米秸秆转化为用于锂离子电池电极材料的多孔碳纳米球。以玉米秸秆为原料，通过高温碳化活化合成生物质多孔碳纳米球。通过不同活化剂的比较发现，经CaCl2活化的碳纳米球不仅可以保留球形结构，而且可以获得丰富的多孔性，从而实现优异的电化学性能（0.2 100次循环结束时546 mA hg-1 C）。由低成本、无污染的玉米秸秆纤维素制成的多孔碳纳米球是锂离子电池负极材料的理想候选材料。