可扩展的前体辅助合成高压LiNiyCo1-yPO4阴极用于离子电池
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Updated: Jun 19, 2026

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Construction and Testing of Coin Cells of Lithium Ion Batteries
Published on: August 2, 2012
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Mobinul Islam1, Ghulam Ali2, Muhammad Faizan1
1Department of Energy & Materials Engineering, Dongguk University, Seoul 04620, Republic of Korea.
Nanomaterials (Basel, Switzerland)
|December 22, 2023
概括
这项研究探讨了用于离子电池的-酸阴极 (LNCP). 兴奋剂阻碍了性能,其容量完全来自,产生了3.12V电池.
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
- 固态化学 固态化学
背景情况:
- 开发先进的阴极材料对于提高离子电池性能至关重要.
- 固溶液阴极为电池应用提供可调节的电化学特性.
研究的目的:
- 调查LiNiyCo1-yPO4 (LNCP) 固溶液阴极与离子电池中的Li4Ti5O12 (LTO) 阳极的适用性.
- 了解兴奋剂对LiCoPO4基阴极的电化学性能所起的作用.
主要方法:
- 通过湿球和热处理合成LiNiyCo1-yPO4 (LNCP).
- 使用X射线粉碎衍射 (XRD),X射线光电子光谱 (XPS),扫描电子显微镜 (SEM) 和同步射线X射线吸收光谱 (XAS) 的表征.
- 电化学评估,包括循环电极的现场XRD分析.
主要成果:
- LNCP表现出一种与母化合物相似的初级单相橄类结构.
- 协同发射器XAS揭示了Ni2+是电化学不活跃的,阻碍了电荷储存.
- 现场XRD证实在循环过程中形成了非活性岩盐类型的NiO阶段.
- 排放能力仅归因于Co3+/Co2+氧化还原对.
结论:
- 在LiCoPO4中兴奋剂对阴极性能有害,因为Ni2+的不活性.
- 尽管有Ni doping,但当与LTO阳极配对时,LNCP阴极的功能基于氧化还原活性.
- 实现了3.12V电池,能量密度为184Wh kg-1 (阴极质量基础),突出了基于的酸盐的潜力.
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