人工晶体学报, 2020, 49 (7): 1326, 网络出版: 2020-08-18   

生物质炭的杂元素掺杂及其在电极中的应用

Heteroelement Doped Biomass Carbon and Its Application in Electrodes
作者单位
桂林理工大学材料科学与工程学院,有色金属及材料加工新技术教育部重点实验室,桂林 541004
摘要
近些年,由于制备工艺的不断优化,生物质炭材料作为储能器件(锂离子电池、超级电容器、锂硫电池等)的电极材料得到了快速发展。与此同时,由于存在首次库伦效率低,不可逆容量大,电压滞后,大电流充放电能力弱等问题,大大阻碍了生物质炭材料作为电极材料的应用。而通过杂元素掺杂生物质炭(尤其是杂原子掺杂),可以有效地提高炭材料的润湿性和电子传导性,增加炭材料的缺陷以及活性位点,使其具有优异的电化学性能。本文归纳了杂元素掺杂生物质炭的研究进展,分别对其制备方法,以及在锂离子电池、超级电容器和锂硫电池等能源领域中的应用和前景进行介绍。
Abstract
In recent years, due to the continuous optimization of the preparation process, biomass carbon materials have been rapidly developed as an electrode material for electronic components (lithium ion batteries, supercapacitors, lithium sulfur batteries, etc.). At the same time, due to the low of the first coulomb efficiency, large irreversible capacity, voltage hysteresis, weak current charging and discharging capacity, the development of biomass materials as electrode materials were greatly hindered. By doping biomass carbon with elements(especially heteroatom doping), which can effectively improve the wettability and electron conductivity of the carbon materials, increase defects in carbon materials and active sites, and results in excellent electrochemical performance for carbon materials. This review offers a retrospection of the research progress of element-doped biomass carbons, and gives an introduce on their preparation methods, applications and prospects in the energy fields of lithium-ion batteries, supercapacitors, lithium-sulfur batteries, respectively.

覃爱苗, 郑爽, 魏立学, 刘志森. 生物质炭的杂元素掺杂及其在电极中的应用[J]. 人工晶体学报, 2020, 49(7): 1326. QIN Aimiao, ZHENG Shuang, WEI Lixue, LIU Zhisen. Heteroelement Doped Biomass Carbon and Its Application in Electrodes[J]. Journal of Synthetic Crystals, 2020, 49(7): 1326.

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