Idrees Muhammad, Batool Saima, Hu Weizhao, Chen Deliang
Research Institute of Interdisciplinary Science, School of Materials Science and Engineering, Dongguan University of Technology, Dongguan, 523808, P. R. China.
State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China.
Small. 2024 Sep;20(37):e2402266. doi: 10.1002/smll.202402266. Epub 2024 Jun 7.
This work reports a novel 3D printed grid reservoir-integrated mesoporous carbon coordinated silicon oxycarbide hybrid composite (3DP-MPC-SiOC) to establish the zincophile interphase for controlling the dendrite formation. The customized 3D printed grid patterned structure inhibits Zn dendrite growth and achieves long-term stability with reduced voltage polarization due to homogeneous electric field distribution. The hybrid composite consisting of SiOC interpenetrated within carbon constructs a high zinc nucleation interphase, hence promoting uniform Zn deposition and enhancing ionic diffusion with dendrite-free growth and a reduced nucleation energy barrier. As a result, the 3DP-MPC-SiOC@Zn symmetrical cell affords a highly reversible Zn plating/stripping and dendrite-free structure over 198 h with an ultra-low voltage polarization. These inspiring performances endow the 3DP anode with a 3DP-VO cathode as a full battery, which shows a retention capacity of 78.8 mAh g (Coulombic efficiency: 94.04%) at 0.1 A g and a large energy density of 41 Wh kg at a power density of 1.2 W kg (based on the total mass of electrode) after 120 cycles. This newly developed 3D printing of hybrid composite as an electrode is straightforward and scalable and provides a novel concept for realizing dendrite-free and stable rechargeable Zn-ion batteries.
这项工作报道了一种新型的3D打印网格储液器集成介孔碳配位碳化硅杂化复合材料（3DP-MPC-SiOC），用于建立亲锌界面以控制枝晶形成。定制的3D打印网格图案结构抑制了锌枝晶的生长，并由于均匀的电场分布实现了长期稳定性和降低的电压极化。由碳化硅互穿在碳中组成的杂化复合材料构建了一个高锌成核界面，从而促进了锌的均匀沉积，增强了离子扩散，实现了无枝晶生长并降低了成核能垒。结果，3DP-MPC-SiOC@Zn对称电池在198小时内提供了高度可逆的锌电镀/剥离和无枝晶结构，且电压极化超低。这些令人鼓舞的性能使具有3DP阳极和3DP-VO阴极的全电池具有在0.1 A g下78.8 mAh g的保留容量（库仑效率：94.04%），以及在1.2 W kg的功率密度下（基于电极总质量）120次循环后41 Wh kg的高能量密度。这种新开发的作为电极的杂化复合材料3D打印方法简单且可扩展，为实现无枝晶和稳定的可充电锌离子电池提供了一个新的概念。
