对于离子电池的分层过渡金属氧化物阴极的接口问题:当前状态,最近的进展,战略和前景
Yongxin Kuang1, Yanxue Wu2, Hangyu Zhang1
1School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China.
Molecules (Basel, Switzerland)
|January 8, 2025
概括
离子电池 (SIBs) 在储能方面表现有前途. 本综述详细介绍了如何通过解决接口不稳定性和降解以提高性能来改进它们的分层氧化物阴极.
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) 由于其低成本和丰富的资源,对储能具有吸引力.
- 分层过渡金属氧化物阴极 (NaxTMO2) 提供高容量,但遭受界面不稳定性和快速容量衰变.
研究的目的:
- 审查影响NaxTMO2阴极界面稳定性和降解机制的关键因素.
- 总结界面修改方法,以提高电化学性能.
主要方法:
- 对界面稳定性和降解机制的文献综述.
- 分析界面修改策略,包括兴奋剂,表面工程和电解质优化.
主要成果:
- 确定了关键的降解因素:空气敏感性,过渡金属 (TM) 离子迁移/溶解和晶格氧气损失.
- 接口修改策略有效地提高了电化学性能.
结论:
- 解决接口不稳定性对于高性能SIB至关重要.
- 未来的研究应该专注于设计高级分层NaxTMO2阴极.
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