汉麻杆基碳材料在钠离子电池负极中的应用  

Application of hemp-based carbon materials in the anode electrode of sodium-ion batteries

作　　者：杜爱勋 董澍 Du Aixun;Dong Shu(Wuhan Institute of Marine Electric Propulsion,Wuhan 430064,China)

机构地区：[1]武汉船用电力推进装置研究所,武汉430064

出　　处：《船电技术》2024年第11期34-37,共4页Marine Electric & Electronic Engineering

摘　　要：为研发低成本、高性能、低压平台容量占比高的钠离子电池负极用碳材料,本文从碳源的选择、材料的制备及其电化学性能的研究出发,采用廉价汉麻杆粉末作为碳源,高浓度碱造孔后进行高温煅烧,成功得到相应的多孔的短程有序、长程无序的负极碳材料。在钠离子电池中,0.5 A g^(-1)的电流密度下达到了230 mAh g^(-1)的比容量,0.1 V以下的平台容量占比达到了53.3%,200次循环的容量保持率达到了97.3%。To develop low-cost,high-performance,and high capacity ratio in the low-voltage platform carbon materials for sodium-ion batter.Starting from the selection of carbon sources,the preparation of materials,and their electrochemical performance,this paper employs cheap hemp stalk powder as the carbon source,and conducts high-temperature calcination after high-concentration alkali pore-formation,and corresponding porous anode electrode carbon materials with short-range order and long-range disorder are successfully obtained.In sodium-ion batteries,it exhibits a specific capacity of 230 mAh g^(-1)at a current density of 0.5 A g^(-1),with the proportion of capacity below 0.1 V reaching 53.3%,and a capacity retention rate of 97.3%after 200 cycles.

关 键 词：负极材料 钠离子电池 汉麻杆 

分 类 号：TM912[电气工程—电力电子与电力传动]