基于生物质硬碳钠离子电池负极材料研究进展

Research Progress of Sodium Ion Batteries Anode Materials Based on Biomass Hard Carbon

随着可再生储能材料的深入研究,锂离子电池因具有比能量大、自放电小、绿色环保等优势而备受青睐.但是锂资源储量有限且分布不均,导致锂离子电池生产成本较高,频繁充放电缩减使用寿命,难以满足未来规模化应用的需求.为了解决上述问题,新型钠离子电池可作为传统锂离子电池的潜在替代品.阐述了硬碳材料的储钠机理,及生物质衍生硬碳负极的常用制备方法,并介绍了其在钠离子电池中的应用.

As a kind of renewable energy storage material,lithium ion batteries are preferred because of the advantages of large specific energy,small self-discharge and green environmental protection.However,due to the limited and unequal distribution of lithium resources,the lithium ion battery has a high cost and its life is shortened by frequent charging and discharging,which makes it difficult to meet the needs of future large-scale applications.In order to solve above problems,the new type of sodium ion battery can be used as a potential substitute for the traditional lithium ion battery.Here is mainly introduced the sodium storage mechanism of hard carbon materials,the preparation of biomass-derived hard carbon anodes by several common methods and their application in sodium ion batteries.