通过磁铁子喷射层层组装石墨//石墨阳极,用于高能量密度离子电池
Haoyang Tong1, Min Zhong1,2, Hongtao Xu3
1Department of Electronic Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.
ACS applied materials & interfaces
|November 21, 2025
概括
这项研究开发了用于高能离子电池 (LIB) 的多层石墨//石墨阳极. 这些阳极改进了.
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
- 储能 储能 储能 储能 储能 储能
背景情况:
- 是高能量密度离子电池 (LIB) 的一个有前途的阳极材料.
- 阳极在循环过程中受到低导电性和显著体积变化的影响.
- 现有的阳极设计难以缓解这些问题,限制了LIB性能.
研究的目的:
- 为下一代LIBs开发新的多层石墨//石墨 (SG/Si/SG) 阳极.
- 为了应对阳极的低导电性和体积变化的挑战.
- 通过先进的阳极架构来提高LIBs的稳定性和能量密度.
主要方法:
- 在铜采集器上组装独特的多层SG/Si/SG和SG/(Si/SG) 5混合阳极.
- 使用磁铁子喷与阳极制造的涂层工艺相结合.
- 研究了制造的阳极的结构完整性和电化学性能.
主要成果:
- 该SG/Si/SG阳极的初始化能力为589.4 mAh g-1和86.5%的初始库伦比克效率 (ICE).
- 在1C的300个循环后,它保留了381.8 mAh g-1和102.3%的容量保留.
- 在高负载下,SG/Si/SG) 5阳极显示出高初始面积容量 (3.433 mAh cm-2) 和ICE (89.9%).
结论:
- 多层碳阳极结构有效减轻体积变化,防止副作用.
- 开发的SG/Si/SG) n配置为制造高能量密度LIB提供了实际实用性.
- 这种方法为推进LIB技术中的阳极材料提供了一个可行的策略.
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