压力诱导的黑色的成型@Ti3C2T复合电极及其对储存的影响
Yunyu Ning1,2, Juncheng Lv1,2, Yuqing Li1
1Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China.
ACS applied materials & interfaces
|September 26, 2024
概括
一种新的压力火方法可以创建集成的黑 (BP) 和Ti3C2Tx MXene电极,没有添加剂. 最佳压力 (300 kN) 可以提高离子电池的性能和稳定性.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 纳米技术 纳米技术
背景情况:
- 集成的电极简化了电池组件组装.
- 黑 (BP) 和Ti3C2Tx MXenes是有前途的电池材料.
- 粘合剂添加剂可能会阻碍电极性能,并使制造复杂化.
研究的目的:
- 为BP@Ti3C2Tx复合电极开发一种新的,无添加剂的制造方法.
- 为了研究合成压力对电极性能的影响.
- 为增强离子电池应用优化电极设计.
主要方法:
- 创新的压力火技术用于复合电极合成.
- 在BP和Ti3C2Tx之间形成Ti-O-P债券.
- 系统地改变合成压力 (例如,50 kN,300 kN) 以研究其影响.
主要成果:
- 300 kN的压力电极在100个循环后以0.1 A/g的速度表现出724.9 mA h/g的放电能力.
- 在500个周期以0.5A/g的速度后,保持了560.74mA h/g的稳定容量.
- 显著较低的电阻 (1.10 × 10^2 Ω) 和更快的动力学被观察到300 kN与50 kN相比.
结论:
- 压是一种有效的无添加剂方法,用于制造BP@Ti3C2Tx集成电极.
- 300 kN的临界合成压力优化了离子运输,导电性和电化学性能.
- 这种技术为先进的复合电极制造提供了一种简单且广泛适用的方法.
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