开发具有B兴奋剂或B/F双兴奋剂的----氧化物作为离子电池的阴极电极材料
Tien Phat Doan1, Nguyen To Van1, Ky Nguyen Van1
1Faculty of Chemical-Physical Engineering, Le Quy Don Technical University, Hanoi 100000, Vietnam.
ACS omega
|December 2, 2024
概括
(B) 和 (F) 离子兴奋剂增强了离子电池阴极材料. B-doped 材料表现出良好的容量和循环,而 B 和 F 联合剂材料提高了先进能量存储的速率能力.
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:
- 离子电池 (SIB) 提供了一个可持续的储能解决方案,因为大量的原材料.
- 由于阴极材料的循环效率和速率能力差,SIBs的商业化受到限制.
- 离子兴奋剂是一种可行的策略,可以提高阴极材料的性能.
研究的目的:
- 研究 (B) 和 (F) 离子兴奋剂对----氧化物阴极材料的影响.
- 通过选择性离子兴奋剂来提高SIB阴极材料的电化学性能.
- 探索用于推进SIB技术的新兴兴奋剂策略.
主要方法:
- 索尔凝方法与化相结合,用于离子兴奋剂.
- 合成B-化 (B-NLMC) 和B,F共化 (BF-NLMC) 的-----氧化物.
- 电化学性能测试,包括不同电流密度的特定容量和循环效率.
主要成果:
- 在100个循环后,B-NLMC在10mAg-1下实现了166.5mAhg-1的特定容量,容量保持率为72.1%.
- 在200 mA g-1的高电流密度下,BF-NLMC的特定容量约为80 mAh g-1,显示出更好的速率能力.
- 与B和F一起的联合兴奋剂导致比单独的B兴奋剂更低的特异性能力和自行车效率,但提高了速度性能.
结论:
- 选择性离子兴奋剂,特别是B和F,显著影响SIB阴极材料的电化学特性.
- 乙级兴奋剂增强了能力和周期寿命,而乙级和F级联合兴奋剂提高了速率能力.
- 这项研究为下一代SIB正极材料的优化兴奋剂策略提供了洞察力.
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