阳极
材料科学
傅里叶变换红外光谱
戊二醛
扫描电子显微镜
化学工程
法拉第效率
壳聚糖
范德瓦尔斯力
离子
氢键
电极
复合材料
纳米技术
有机化学
分子
物理化学
工程类
化学
作者
Chao Chen,Sang Ha Lee,Misuk Cho,Jaehoon Kim,Youngkwan Lee
标识
DOI:10.1021/acsami.5b10673
摘要
We investigate the use of chitosan (CS) as a new cross-linkable and water-soluble binder for the Si anode of Li-ion batteries. In contrast to the traditional binder utilizing a hydrogen bond and/or van der Waals force-linked anode electrodes, CS can easily form a 3D network to limit the movement of Si particles through the cross-linking between the amino groups of CS and the dialdehyde of glutaraldehyde (GA). Chemical, mechanical, and morphological analyses are conducted by Fourier transform infrared spectroscopy, tensile testing, and scanning electron microscopy. The cross-linked Si/CS-GA anode exhibits an initial discharge capacity of 2782 mAh g(-1) with a high initial Coulombic efficiency of 89% and maintained a capacity of 1969 mAh g(-1) at the current density of 500 mA g(-1) over 100 cycles.
科研通智能强力驱动
Strongly Powered by AbleSci AI